vivekvells / taskprocessmanager Goto Github PK

Objective: to implement a task manager application. It must contain the following components: metrics collection, database storage, and a user interface.

Perl 10.72% C# 4.13% Java 37.53% XS 1.67% M4 0.08% PHP 0.06% C 9.14% Python 0.55% Ruby 1.55% HTML 21.11% CSS 0.01% JavaScript 13.43% Dockerfile 0.02%

spring-boot spring spring-mvc java sigar cpu semaphore swagger demo rest-api

taskprocessmanager's Introduction

View all of my Projectworks - click over here -> Vivek Vellaiyappan Project Works

Task Process Monitor / ProcessOnitor / ProcesSanager

Objective

To implement the classic task manager application. It must contain the following components: metrics collection, database storage, and a user interface.

Coursework Information

Capstone Project: MSCS 710L | Duration: Fall 2018 (Aug to Dec 2018)
Degree: Masters in Computer Science - Software Development | College: Marist College, NY
Professor: Anthony Giorgio

Team Info & Roles Executed for this project

Name	Roles	Shared Roles
Vivek Vellaiyappan	Scrum Master, Manager, Software Engineer, Web Developer, DevOps Engineer	Architect, Technical Writer
Deeksha	Testing Engineer, Automation Engineer	Architect, Technical Writer
Neha	Testing Engineer, Automation Engineer	Architect, Technical Writer

Tech Stack

Java, Sigar API (to get system level info), Spring Boot, Spring, Spring MVC, Spring Rest Controller, Spring Data JPA, Hibernate, Spring Scheduler, H2 - Database, Junit, HTML, CSS, JavaScript, jQuery, Bootstrap, Github, CI/CD pipeline - Semaphore, Docker, Maven, Swagger, Webjarjs, Log4j, Postman (API testing & actions)

Project Highlights


SDLC Process	Agile	Architectural Decisions	GitHub	Maven
CI:Semaphore	CD: Docker container	Deployment: Heroku (in Progress)	REST API endpoints	Swagger API documentation

Future Plans/Enhancements


Cloud Deployment - Scaling up & delivery of this web Application to everyone by using Cloud CSPs	Exploring Microservices architecture for this application	Developer Portal Website to expose the application API to external developers
Code Development Practice Related - Hot Deploy concept in concept tryout - Issues creation & assigning gently automatically when buildfails	Using Frontend Framework	Implementing Adobe Analytics or such data analysis over application

Modularize the database by using normalization & bridge pattern concepts
refactor the endpoint controllers location

Quick Links:

File (links)	Description
Work Log	contains log about work done towards the project
Meeting Log	contails log about meeting sync up info
Design Document	document explaining the design approach for this project
Test Approach Docuemnt	document explaining the test approach for this project
Task Process Monitor - Final Demo PPT	Final Demo Presentation File

Note: Will be updating this read me document more about the instrutions to run this in your windows machine, few more demo info & few more info. Kindly refer Gifs, pdfs, & Screenshots mentioned below for now - Version 2.0.

Demo - Version 2.0 Project Images

Project Demo Presentation slides pdf - will be inserting few more slides. Link: Click Me

Total CPU Usage - value updation in real time - video Total CPU memory usage - The values gets updated in real time

Project Home page Project Home Page - verison & a single total cpu memory usage values Maven Build System - Build success Swagger UI view API Docs endopint response API endpoint - CPU Usage response API endpoint - Versions response ALL Endpoints Info Semaphore CI - Project Build Status

Tag on repo **Semaphore CI - Home Page ** Docerized Application

Project Working Demo (all demo files location: link)

[Video Link](to be updated)
[Working Demo - PDF sheet](to be updated)
Working Functionality Pictures Demo

Features

View System Level info (aimed as of now)
- System memory statistics: total, free, shared
- CPU statistics: load averages, user cpu, system cpu
- Process level statistics: process arguments, memory consumption, cpu consumption, credential info, state, environment, open file descriptors
- File system level statistics: local and remote mounted file systems (NTFS, ext, SMB, NFS, etc), capacity, utilization
- Network interface level statistics: all available network interfaces detected and monitored for bytes received/transmitted, packets received/transmitted, collisions, errors, dropped packets
Monitor the processes in an intuitive way (Charts, Graphs)

Future Enhancements

Note: The version will be updated whenever necessary to include more enhancements (will update these later)

Note

Using SIGAR for educational purpose only. (disclaimer made to avoid licensing issues with SIGAR)

Instructions to run this project in your machine:

Used: IDE: IntelliJ | OS: Windows, Linux

To run the Web App (few recent changes made. will be updating this soon)

setup java & maven env in your local machine.
- Windows: https://www.mkyong.com/maven/how-to-install-maven-in-windows/
- Linux: for maven - https://www.youtube.com/watch?v=i8hSPwXZ0UI
download project Refer the release branch with tag v1.0
run following command
- mvn clean install
  - proceed only after you receive "BUILD SUCCESS" confirmation
- java -jar target\process-monitor-0.0.1-SNAPSHOT.war
  - make sure you got something similar to this line in the log INFO 10672 --- [ main] c.t.p.p.ProcessMonitorApplication : Started ProcessMonitorApplication in 6.17 seconds (JVM running for 6.971)
  - Note: in the unzipped folder -> navigate to the pom.xml file such that you end up similar to this location ..\TaskProcessManager-master\version1\maven_use\eclipse_processmonitor_ver1\spring-boot\process-monitor
goto url http://localhost:8080/
- verify whether you received this "Hello Spring Boot World! Will be deploying a Process Monitoring Application soon using you!!" in the web page

To run a pgm & retrieve low level system info

Eclipse IDE used for this project being downloaded eclipse from here - Eclipse IDE for Java EE Developers - 64 bit zip link: https://spring.io/tools3/eclipse
setup the java https://www.mkyong.com/java/how-to-set-java_home-on-windows-10/ and maven https://www.mkyong.com/maven/how-to-install-maven-in-windows/ dependencies in your system
clone this repo
- git clone https://github.com/vivekVells/TaskProcessManager.git
open eclipse and open the proejct located in this location: .\TaskProcessManager\version1\maven_use\eclipse_processmonitor_ver1
add the sigar.jar file to the project "processmonitorver1" by going to its properties (right click on project -> Properties -> Java Build Path on left pane -> Libraries tab on right pane -> Add External JARs button and add the sigar.jar file in this location .\TaskProcessManager\prototype\hyperic-sigar-1.6.4\sigar-bin\lib\sigar.jar
optional: if eclipse shouts error stating "Project is missing required library: ", then remove that one by - navigating to project properties of "processmonitorver1" by going to its properties - right click on project -> Properties -> Java Build Path on left pane -> Libraries tab on right pane -> remove any unused or errored jar file

Application Screenshots So Far(wanna avoid scrolling a lot, use above pdf sheet)

Beware of the lots of scrolling to come :P

OLD Screenshots - Version 1.0

Ver 1.1 Screenshots accordingly

Collage - Screen: Welcome, Version Info, CPU Usage info, Utility Info

Default / Home Screen - http://localhost:8080 or http://localhost:8080/home

Welcome Screen - http://localhost:8080/welcome

Welcome Screen

Version Info Screen - http://localhost:8080/version

version info Screen

Cpu Usage Screen - http://localhost:8080/cpu

Cpu Usage Screen

Utility Info Screen - http://localhost:8080/utility

Utility Screen

Test Web Response - http://localhost:8080/testresponse

Swagger UI Web page - http://localhost:8080/swagger-ui.html

Swagger Meta Data for this Application - http://localhost:8080/v2/api-docs

Page Not Found Error Page - http://localhost:8080/404.html

Old versions screenshots below.

Version 1 - Web UI

Initial Setup

Version 1 - Verifying the system level info

System Related Information CPU Related Information

taskprocessmanager's People

Contributors

Stargazers

Watchers

taskprocessmanager's Issues

ver 1 - deliver the product that pulls system level info using sigar

deliver the product that pulls system level info using sigar

Semaphore CI Build failure - Non-readable POM /home/runner/TaskProcessManager/version1/processmonitor/pom.xml: /home/runner/TaskProcessManager/version1/processmonitor/pom.xml (No such file or directory) @ @

Suggestion: just fix the file path.

Fix the error:

POM file version1/processmonitor/pom.xml specified with the -f/--file command line argument does not exist
[INFO] Scanning for projects...
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[FATAL] Non-readable POM /home/runner/TaskProcessManager/version1/processmonitor/pom.xml: /home/runner/TaskProcessManager/version1/processmonitor/pom.xml (No such file or directory) @ 
 @ 
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]   
[ERROR]   The project  (/home/runner/TaskProcessManager/version1/processmonitor/pom.xml) has 1 error
[ERROR]     Non-readable POM /home/runner/TaskProcessManager/version1/processmonitor/pom.xml: /home/runner/TaskProcessManager/version1/processmonitor/pom.xml (No such file or directory)
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException

In Swagger UI, apiinfo object not shown

seems like the api info was not being pulled properly in the Swagger UI. Fix it.

ver 1 - Setup Build environment - Spring Boot - Maven

setup the spring boot framework with current project setup such that it performs the following
- Build inspection
- Present in class how your build system works
- Perform a live build
- Build should succeed, but code does not need to work yet.

Selenium automation testing over the web application

create an automation testing using selenium

Create static webpage for version code block using rest api end points

using the rest api endpoints on #71, create a new endpoint where on hitting, should have a web page.

Windows Env - Reproduce spring boot appln as of now upto #66

Dependency

java, maven, sigar lib location

Note:

server.port=0 in application.properties. Change it or navigate to that port.

Attach Screenshot for verification.

Linux Machine - sigar related files reference error - no sigar-amd64-winnt.dll in java.library.path

refer #62 and verify whether this can be ran like #62 on linux machine

Familiarize with Spring boot

learn spring boot
understand how it works
understand restful services, request mappings

ver 1 - reveal information in real time in the website

pull cpu info from system using sigar for particular intervals of time and update it in real time over the website UI

ver 1 - setup CI pipeline

setup the CI and CD pipeline for the project
Already enrolled for Semaphore. Will be integrating this one soon.

ver 1 - configure maven setup

configure the maven setup for the project

Handle Error Pages Gracefully

Can you handle the error pages gracefully

Handle

Generic Error Page
Different types of error pages
- Page Not Found 404
- Unauthorized access 401
- Internal Server Error 500
- and so on...

Utility code in spring boot appln

integrate utility code with the spring boot application.

ver 1 - design db

design the db layout for the project
for now, consider only pulling cpuinfo and showing it in UI - this is the use case; but make sure you design a generic tables so that we can add additional features in future

Design DB for the spring boot appln

design db for the spring boot application
use the ORM concept.
Use Apache debry as db which is an embedded one!

Create a utility pack & test coverage for it

commonly shared entities should have a common package pool.
write unit test for this package

ver 1 - reveal stored db data in web ui

pull the data stored in the db
show those in the web ui application in a proper way

CPU Usage file - Modularize the code

modularize code base well enough such that following are possible efficiently

testing
db CRUD

Using sigar jar files instead of sigar from maven dependency

do not use the sigar jar file from local drive. use the sigar from the maven dependency repo

either use maven repo or refer the jar file using relative path

log4j dependency - 'dependencies.dependency.version' for log4j:log4j:jar is missing.

Issue: log4j file dependency

Error Log:

E:\kevDev\ProjectWorks\TaskProcessManager\version1\processmonitor>mvn clean
[INFO] Scanning for projects...
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[ERROR] 'dependencies.dependency.version' for log4j:log4j:jar is missing. @ line 59, column 21
 @
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]
[ERROR]   The project corp.tech.vivek:processmonitor:0.0.1-SNAPSHOT (E:\kevDev\ProjectWorks\TaskProcessManager\version1\processmonitor\pom.xml) has 1 error
[ERROR]     'dependencies.dependency.version' for log4j:log4j:jar is missing. @ line 59, column 21
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException

ver 1 - Retrieve required data (minimum intensity) & store in db

retrieve required low level data (stick with cpu info for now; we can build more in future)
store the values in db

ver 1 - On click of a bash script run the project file and navigate to the url

on click of bash script, execute the .war file and then on ready, navigate to the localhost

Unit Testing for Spring Boot Appln Codes

Complete the unit testing for the codes in spring boot application.

create test suite for cpu usage

create test suite for it

swagger-ui.html is not working

for some reasons, swagger-ui.html end point not working. fix this one.

showing graphs for real time values

create graph UI interesting ones for better data visualization for the pulled data
- best guess, have to use D3.js

ver 1 - perform crud operation over db using data pulled using sigar

do crud operation on sqllite using data pulled using sigar

Maven Build Failure - Unit test fails on different machine

Unit test fails because of different env. Fix this one accordingly.

Application in different machine - Windows - Port already in use Error

Issue: Port 8080 was already in use by other appln and this one failed. Handle this issue gracefully.
Possible Fix:

use different port which will not be referenced often by any other appln
run a loop to find an free available port and use it.

C:\Users\maristuser\Downloads\TaskProcessManager-1.1\TaskProcessManager-1.1\version1\processmonitor>java -jar target\processmonitor-0.0.1-SNAPSHOT.war

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.1.0.RELEASE)

2018-11-28 11:00:08.504  INFO 7388 --- [           main] c.t.v.p.ProcessmonitorApplication        : Starting ProcessmonitorApplication v0.0.1-SNAPSHOT on LB305-12 with PID 7388 (C:\Users\maristuser\Downloads\TaskProcessManager-1.1\TaskProcessManager-1.1\version1\processmonitor\target\processmonitor-0.0.1-SNAPSHOT.war started by maristuser in C:\Users\maristuser\Downloads\TaskProcessManager-1.1\TaskProcessManager-1.1\version1\processmonitor)
2018-11-28 11:00:08.512  INFO 7388 --- [           main] c.t.v.p.ProcessmonitorApplication        : No active profile set, falling back to default profiles: default
2018-11-28 11:00:10.234  INFO 7388 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2018-11-28 11:00:10.292  INFO 7388 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 36ms. Found 0 repository interfaces.
2018-11-28 11:00:10.893  INFO 7388 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$879cd57b] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-11-28 11:00:11.684  INFO 7388 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2018-11-28 11:00:11.734  INFO 7388 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2018-11-28 11:00:11.734  INFO 7388 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/9.0.12
2018-11-28 11:00:11.770  INFO 7388 --- [           main] o.a.catalina.core.AprLifecycleListener   : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files\Docker\Docker\Resources\bin;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files\PuTTY\;C:\Program Files (x86)\Brackets\command;C:\Program Files\IBM\SPSS\Statistics\25\JRE\bin;C:\Program Files\MATLAB\R2018a\runtime\win64;C:\Program Files\MATLAB\R2018a\bin;C:\Program Files\MiKTeX 2.9\miktex\bin\x64\;C:\PROGRAM FILES\OPENOFFICE.ORG 3\URE\BIN; C:\PROGRAM FILES (X86)\OPENOFFICE.ORG 3\URE\BIN;C:\Program Files\Git\cmd;C:\Users\maristuser\AppData\Local\Microsoft\WindowsApps;D:\pgm\apache-maven-3.6.0\bin;C:\Program Files\Java\jdk1.8.0_181\bin;;.]
2018-11-28 11:00:13.402  INFO 7388 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2018-11-28 11:00:13.403  INFO 7388 --- [           main] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 4800 ms
2018-11-28 11:00:14.408  INFO 7388 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-11-28 11:00:14.409  INFO 7388 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'webMvcMetricsFilter' to: [/*]
2018-11-28 11:00:14.413  INFO 7388 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-11-28 11:00:14.418  INFO 7388 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'formContentFilter' to: [/*]
2018-11-28 11:00:14.419  INFO 7388 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2018-11-28 11:00:14.423  INFO 7388 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpTraceFilter' to: [/*]
2018-11-28 11:00:14.432  INFO 7388 --- [           main] o.s.b.w.servlet.ServletRegistrationBean  : Servlet dispatcherServlet mapped to [/]
2018-11-28 11:00:14.596  INFO 7388 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2018-11-28 11:00:14.611  WARN 7388 --- [           main] com.zaxxer.hikari.util.DriverDataSource  : Registered driver with driverClassName=org.apache.derby.jdbc.EmbeddedDriver was not found, trying direct instantiation.
2018-11-28 11:00:15.143  INFO 7388 --- [           main] com.zaxxer.hikari.pool.PoolBase          : HikariPool-1 - Driver does not support get/set network timeout for connections. (Feature not implemented: No details.)
2018-11-28 11:00:15.151  INFO 7388 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Start completed.
2018-11-28 11:00:15.240  INFO 7388 --- [           main] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [
        name: default
        ...]
2018-11-28 11:00:15.410  INFO 7388 --- [           main] org.hibernate.Version                    : HHH000412: Hibernate Core {5.3.7.Final}
2018-11-28 11:00:15.415  INFO 7388 --- [           main] org.hibernate.cfg.Environment            : HHH000206: hibernate.properties not found
2018-11-28 11:00:15.633  INFO 7388 --- [           main] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.0.4.Final}
2018-11-28 11:00:16.019  INFO 7388 --- [           main] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.DerbyTenSevenDialect
2018-11-28 11:00:16.742  INFO 7388 --- [           main] o.h.t.schema.internal.SchemaCreatorImpl  : HHH000476: Executing import script 'org.hibernate.tool.schema.internal.exec.ScriptSourceInputNonExistentImpl@327bcebd'
2018-11-28 11:00:16.754  INFO 7388 --- [           main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2018-11-28 11:00:17.119  INFO 7388 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2018-11-28 11:00:17.227  WARN 7388 --- [           main] aWebConfiguration$JpaWebMvcConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2018-11-28 11:00:17.774  INFO 7388 --- [           main] o.s.b.a.e.web.EndpointLinksResolver      : Exposing 2 endpoint(s) beneath base path '/actuator'
2018-11-28 11:00:17.884 ERROR 7388 --- [           main] org.apache.catalina.util.LifecycleBase   : Failed to start component [Connector[HTTP/1.1-8080]]

org.apache.catalina.LifecycleException: Protocol handler start failed
        at org.apache.catalina.connector.Connector.startInternal(Connector.java:960) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.StandardService.addConnector(StandardService.java:225) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.addPreviouslyRemovedConnectors(TomcatWebServer.java:259) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.start(TomcatWebServer.java:197) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.startWebServer(ServletWebServerApplicationContext.java:300) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:162) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) [spring-context-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at corp.tech.vivek.processmonitor.ProcessmonitorApplication.main(ProcessmonitorApplication.java:10) [classes!/:0.0.1-SNAPSHOT]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_181]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_181]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_181]
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [processmonitor-0.0.1-SNAPSHOT.war:0.0.1-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [processmonitor-0.0.1-SNAPSHOT.war:0.0.1-SNAPSHOT]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [processmonitor-0.0.1-SNAPSHOT.war:0.0.1-SNAPSHOT]
        at org.springframework.boot.loader.WarLauncher.main(WarLauncher.java:58) [processmonitor-0.0.1-SNAPSHOT.war:0.0.1-SNAPSHOT]
Caused by: java.net.BindException: Address already in use: bind
        at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_181]
        at sun.nio.ch.Net.bind(Unknown Source) ~[na:1.8.0_181]
        at sun.nio.ch.Net.bind(Unknown Source) ~[na:1.8.0_181]
        at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source) ~[na:1.8.0_181]
        at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source) ~[na:1.8.0_181]
        at org.apache.tomcat.util.net.NioEndpoint.initServerSocket(NioEndpoint.java:236) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:210) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:1108) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:550) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.connector.Connector.startInternal(Connector.java:957) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        ... 22 common frames omitted

2018-11-28 11:00:17.899  INFO 7388 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2018-11-28 11:00:18.131  INFO 7388 --- [           main] ConditionEvaluationReportLoggingListener :

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-11-28 11:00:18.142 ERROR 7388 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   :

***************************
APPLICATION FAILED TO START
***************************

Description:

The Tomcat connector configured to listen on port 8080 failed to start. The port may already be in use or the connector may be misconfigured.

Action:

Verify the connector's configuration, identify and stop any process that's listening on port 8080, or configure this application to listen on another port.

2018-11-28 11:00:18.162  INFO 7388 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Shutting down ExecutorService 'applicationTaskExecutor'
2018-11-28 11:00:18.164  INFO 7388 --- [           main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2018-11-28 11:00:18.166  INFO 7388 --- [           main] .SchemaDropperImpl$DelayedDropActionImpl : HHH000477: Starting delayed evictData of schema as part of SessionFactory shut-down'
2018-11-28 11:00:18.179  INFO 7388 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown initiated...
2018-11-28 11:00:18.199  INFO 7388 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown completed.

Unable to get desired .xml or .json rest body response when endpoint being requested

by default, for objects, .json response obtained.

As a user/developer, I want to get .xml or .json based on my own needs/endpoint query.

e-g:

.json need => when endpoint: http://localhost:8080/api/versions.json
.xml need => when endpoint: http://localhost:8080/api/versions.xml

Reformat the REST API endpoints properly

REST API End points as of now are not proper. They are vague and it just works. that's it. use the Service here and move all those controller end points to the controllers package folder.

Serve a static web page when navigated to the url

Render a custom HTML + CSS + JS file when navigated to a url

ver 1 - create SQLite config for the spring boot webapp

configure the SQLite for the spring boot web app

Integrate Swagger for this application

Swagger integration for this application would be very cool! If you do this one, you are awesome!

Find a way to Monitor & Manage Spring Boot Application

Use Spring Boot Actuator to monitor & manage spring boot Appln

ver 1 - reproduce webapp - Linux OS - Deeksha

reproduce in Linux OS Environment
refer how to run the web app using this link - https://github.com/vivekVells/TaskProcessManager#instructions-to-run-this-project-in-your-machine
attach any screenshot or verification log after you complete this task

Use testing endpoint instead of default & home page endpoints which is used on PR #52

Note:
refer #52 - use different testing endpoint instead of using default & home page end point.

Issue:

This is spike story and using production endpoints is not correct way of coding

Fix Suggestion:

use testing endpoint

Cpu info usage code in Spring boot appln

Cpu info usage code in spring boot appln

VersionInfo - Modularize & Test Suite

version file - modularize code & complete unit testing

Version code in spring boot appln

integrate version code module to spring boot appln.

ver 1 - Replicate what was done so far in my local machine - Windows OS - Deeksha

Objective

replicate system level info pull by executing the program in your local machine which will be in Windows OS

refer how to run the pgm using this link: https://github.com/vivekVells/TaskProcessManager#instructions-to-run-this-project-in-your-machine

Reason for doing this:

This is done to verify whether we are able to reproduce in different machines kind of environment system testing

ver 1 - fix the jar file dependency

right now, the jar files have to be manually added to the system. fix it using maven.
- sigar
- sqlite
- log4j

Different Windows Machine - Sigar Exception Errors

Issue:

when tried to replicate the working functionality of the appln on different windows machine, got issues because of the followings:

sigar-amd64-winnt.dll
sigar.jar

Issue: no sigar-amd64-winnt.dll in java.library.path org.hyperic.sigar.SigarException: no sigar-amd64-winnt.dll in java.library.path

Error Log:

C:\Users\maristuser\Downloads\TaskProcessManager-master\version1\processmonitor>java -jar target\processmonitor-0.0.1-SNAPSHOT.war

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.1.0.RELEASE)

2018-11-28 12:52:46.319  INFO 2112 --- [           main] c.t.v.p.ProcessmonitorApplication        : Starting ProcessmonitorApplication v0.0.1-SNAPSHOT on LB305-12 with PID 2112 (C:\Users\maristuser\Downloads\TaskProcessManager-master\version1\processmonitor\target\processmonitor-0.0.1-SNAPSHOT.war started by maristuser in C:\Users\maristuser\Downloads\TaskProcessManager-master\version1\processmonitor)
2018-11-28 12:52:46.330  INFO 2112 --- [           main] c.t.v.p.ProcessmonitorApplication        : No active profile set, falling back to default profiles: default
2018-11-28 12:52:48.734  INFO 2112 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2018-11-28 12:52:48.786  INFO 2112 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 29ms. Found 0 repository interfaces.
2018-11-28 12:52:49.507  INFO 2112 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$f79ed398] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-11-28 12:52:50.481  INFO 2112 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2018-11-28 12:52:50.542  INFO 2112 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2018-11-28 12:52:50.546  INFO 2112 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/9.0.12
2018-11-28 12:52:50.581  INFO 2112 --- [           main] o.a.catalina.core.AprLifecycleListener   : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files\Docker\Docker\Resources\bin;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files\PuTTY\;C:\Program Files (x86)\Brackets\command;C:\Program Files\IBM\SPSS\Statistics\25\JRE\bin;C:\Program Files\MATLAB\R2018a\runtime\win64;C:\Program Files\MATLAB\R2018a\bin;C:\Program Files\MiKTeX 2.9\miktex\bin\x64\;C:\PROGRAM FILES\OPENOFFICE.ORG 3\URE\BIN;C:\PROGRAM FILES (X86)\OPENOFFICE.ORG 3\URE\BIN;C:\Program Files\Git\cmd;C:\Users\maristuser\AppData\Local\Microsoft\WindowsApps;D:\pgm\apache-maven-3.6.0\bin;C:\Program Files\Java\jdk1.8.0_181\bin;d\sigar.jar;d\log4j.jar;d\sigar-amd64-winnt.dll;;.]
2018-11-28 12:52:52.745  INFO 2112 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2018-11-28 12:52:52.746  INFO 2112 --- [           main] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 6303 ms
2018-11-28 12:52:53.003  INFO 2112 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-11-28 12:52:53.005  INFO 2112 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'webMvcMetricsFilter' to: [/*]
2018-11-28 12:52:53.007  INFO 2112 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-11-28 12:52:53.008  INFO 2112 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'formContentFilter' to: [/*]
2018-11-28 12:52:53.013  INFO 2112 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2018-11-28 12:52:53.014  INFO 2112 --- [           main] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpTraceFilter' to: [/*]
2018-11-28 12:52:53.025  INFO 2112 --- [           main] o.s.b.w.servlet.ServletRegistrationBean  : Servlet dispatcherServlet mapped to [/]
2018-11-28 12:52:53.453  INFO 2112 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2018-11-28 12:52:53.467  WARN 2112 --- [           main] com.zaxxer.hikari.util.DriverDataSource  : Registered driver with driverClassName=org.apache.derby.jdbc.EmbeddedDriver was not found, trying direct instantiation.
2018-11-28 12:52:54.087  INFO 2112 --- [           main] com.zaxxer.hikari.pool.PoolBase          : HikariPool-1 - Driver does not support get/set network timeout for connections. (Feature not implemented: No details.)
2018-11-28 12:52:54.095  INFO 2112 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Start completed.
2018-11-28 12:52:54.273  INFO 2112 --- [           main] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [
        name: default
        ...]
2018-11-28 12:52:54.417  INFO 2112 --- [           main] org.hibernate.Version                    : HHH000412: Hibernate Core {5.3.7.Final}
2018-11-28 12:52:54.426  INFO 2112 --- [           main] org.hibernate.cfg.Environment            : HHH000206: hibernate.properties not found
2018-11-28 12:52:54.659  INFO 2112 --- [           main] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.0.4.Final}
2018-11-28 12:52:55.091  INFO 2112 --- [           main] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.DerbyTenSevenDialect
2018-11-28 12:52:55.768  INFO 2112 --- [           main] o.h.t.schema.internal.SchemaCreatorImpl  : HHH000476: Executing import script 'org.hibernate.tool.schema.internal.exec.ScriptSourceInputNonExistentImpl@3568f9d2'
2018-11-28 12:52:55.781  INFO 2112 --- [           main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2018-11-28 12:52:56.282  WARN 2112 --- [           main] aWebConfiguration$JpaWebMvcConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2018-11-28 12:52:56.540  INFO 2112 --- [           main] pertySourcedRequestMappingHandlerMapping : Mapped URL path [/v2/api-docs] onto method [public org.springframework.http.ResponseEntity<springfox.documentation.spring.web.json.Json> springfox.documentation.swagger2.web.Swagger2Controller.getDocumentation(java.lang.String,javax.servlet.http.HttpServletRequest)]
2018-11-28 12:52:56.839  INFO 2112 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2018-11-28 12:52:58.372  INFO 2112 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 9001 (http)
2018-11-28 12:52:58.377  INFO 2112 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2018-11-28 12:52:58.380  INFO 2112 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/9.0.12
2018-11-28 12:53:00.684  INFO 2112 --- [           main] o.a.c.c.C.[Tomcat-1].[localhost].[/]     : Initializing Spring embedded WebApplicationContext
2018-11-28 12:53:00.687  INFO 2112 --- [           main] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 2444 ms
2018-11-28 12:53:00.729  INFO 2112 --- [           main] o.s.b.w.servlet.ServletRegistrationBean  : Servlet dispatcherServlet mapped to [/]
2018-11-28 12:53:00.774  INFO 2112 --- [           main] o.s.b.a.e.web.EndpointLinksResolver      : Exposing 2 endpoint(s) beneath base path '/actuator'
2018-11-28 12:53:01.012  INFO 2112 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 9001 (http) with context path ''
2018-11-28 12:53:01.034  INFO 2112 --- [           main] d.s.w.p.DocumentationPluginsBootstrapper : Context refreshed
2018-11-28 12:53:01.111  INFO 2112 --- [           main] d.s.w.p.DocumentationPluginsBootstrapper : Found 1 custom documentation plugin(s)
2018-11-28 12:53:01.212  INFO 2112 --- [           main] s.d.s.w.s.ApiListingReferenceScanner     : Scanning for api listing references
2018-11-28 12:53:01.403  INFO 2112 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2018-11-28 12:53:01.407  INFO 2112 --- [           main] c.t.v.p.ProcessmonitorApplication        : Started ProcessmonitorApplication in 15.794 seconds (JVM running for 16.609)
2018-11-28 12:55:43.043  INFO 2112 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring DispatcherServlet 'dispatcherServlet'
2018-11-28 12:55:43.044  INFO 2112 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2018-11-28 12:55:43.087  INFO 2112 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 39 ms
no sigar-amd64-winnt.dll in java.library.path
org.hyperic.sigar.SigarException: no sigar-amd64-winnt.dll in java.library.path
        at org.hyperic.sigar.Sigar.loadLibrary(Sigar.java:172)
        at org.hyperic.sigar.Sigar.<clinit>(Sigar.java:100)
        at org.hyperic.sigar.cmd.Shell.<init>(Shell.java:50)
        at org.hyperic.sigar.cmd.SigarCommandBase.<init>(SigarCommandBase.java:75)
        at corp.tech.vivek.processmonitor.cpu_info.CpuInfoUsage.<init>(CpuInfoUsage.java:27)
        at corp.tech.vivek.processmonitor.cpu_info.CpuInfoUsageController.sGetCpuMachineInfo(CpuInfoUsageController.java:15)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:215)
        at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:142)
        at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800)
        at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:998)
        at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:890)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
        at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:875)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:154)
        at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:122)
        at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:107)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:770)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415)
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Unknown Source)
2018-11-28 12:55:56.290 ERROR 2112 --- [nio-8080-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Handler dispatch failed; nested exception is java.lang.UnsatisfiedLinkError: org.hyperic.sigar.Sigar.getCpuInfoList()[Lorg/hyperic/sigar/CpuInfo;] with root cause

java.lang.UnsatisfiedLinkError: org.hyperic.sigar.Sigar.getCpuInfoList()[Lorg/hyperic/sigar/CpuInfo;
        at org.hyperic.sigar.Sigar.getCpuInfoList(Native Method) ~[sigar-1.6.4.jar!/:na]
        at corp.tech.vivek.processmonitor.cpu_info.CpuInfoUsage.getCpuMachineInfo(CpuInfoUsage.java:129) ~[classes!/:0.0.1-SNAPSHOT]
        at corp.tech.vivek.processmonitor.cpu_info.CpuInfoUsageController.sGetCpuMachineInfo(CpuInfoUsageController.java:18) ~[classes!/:0.0.1-SNAPSHOT]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_181]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_181]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_181]
        at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:215) ~[spring-web-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:142) ~[spring-web-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800) ~[spring-webmvc-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038) ~[spring-webmvc-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) ~[spring-webmvc-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:998) ~[spring-webmvc-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:890) ~[spring-webmvc-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:875) ~[spring-webmvc-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90) ~[spring-boot-actuator-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) ~[spring-web-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[spring-web-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:154) ~[spring-boot-actuator-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:122) ~[spring-boot-actuator-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:107) ~[spring-boot-actuator-2.1.0.RELEASE.jar!/:2.1.0.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.2.RELEASE.jar!/:5.1.2.RELEASE]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) ~[tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:770) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_181]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_181]
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.12.jar!/:9.0.12]
        at java.lang.Thread.run(Unknown Source) [na:1.8.0_181]

error while rendering html page - org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/homepage.html]" - line 35, col 35)

Issue:

thymeleaf exception because its unable to parse the html file in template

Error Log:

2018-11-28 01:36:44.762 ERROR 1224 --- [nio-8080-exec-1] org.thymeleaf.TemplateEngine             : [THYMELEAF][http-nio-8080-exec-1] Exception processing template "homepage": An error happened during template parsing (template: "class path resource [templates/homepage.html]" - line 35, col 35)

org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/homepage.html]" - line 35, col 35)
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:239) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parseStandalone(AbstractMarkupTemplateParser.java:100) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:649) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098) [thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072) [thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:362) [thymeleaf-spring5-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:189) [thymeleaf-spring5-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1370) [spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1116) [spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1055) [spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) [spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:998) [spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:890) [spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:875) [spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90) [spring-boot-actuator-2.1.0.RELEASE.jar:2.1.0.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) [spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) [spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:154) [spring-boot-actuator-2.1.0.RELEASE.jar:2.1.0.RELEASE]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:122) [spring-boot-actuator-2.1.0.RELEASE.jar:2.1.0.RELEASE]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:107) [spring-boot-actuator-2.1.0.RELEASE.jar:2.1.0.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) [spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:770) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_144]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_144]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144]
Caused by: org.attoparser.ParseException: (Line = 35, Column = 35) Malformed markup: Attribute "src" appears more than once in element
	at org.attoparser.MarkupEventProcessorHandler.handleAttribute(MarkupEventProcessorHandler.java:549) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
	at org.attoparser.ParsingAttributeSequenceUtil.parseAttributeSequence(ParsingAttributeSequenceUtil.java:275) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
	at org.attoparser.ParsingElementMarkupUtil.parseOpenElement(ParsingElementMarkupUtil.java:153) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
	at org.attoparser.MarkupParser.parseBuffer(MarkupParser.java:710) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
	at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:301) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
	at org.attoparser.MarkupParser.parse(MarkupParser.java:257) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:230) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	... 62 common frames omitted

2018-11-28 01:36:44.778 ERROR 1224 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/homepage.html]" - line 35, col 35)] with root cause

org.attoparser.ParseException: (Line = 35, Column = 35) Malformed markup: Attribute "src" appears more than once in element
	at org.attoparser.MarkupEventProcessorHandler.handleAttribute(MarkupEventProcessorHandler.java:549) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
	at org.attoparser.ParsingAttributeSequenceUtil.parseAttributeSequence(ParsingAttributeSequenceUtil.java:275) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
	at org.attoparser.ParsingElementMarkupUtil.parseOpenElement(ParsingElementMarkupUtil.java:153) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
	at org.attoparser.MarkupParser.parseBuffer(MarkupParser.java:710) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
	at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:301) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
	at org.attoparser.MarkupParser.parse(MarkupParser.java:257) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:230) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parseStandalone(AbstractMarkupTemplateParser.java:100) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:649) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:362) ~[thymeleaf-spring5-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:189) ~[thymeleaf-spring5-3.0.11.RELEASE.jar:3.0.11.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1370) ~[spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1116) ~[spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1055) ~[spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) ~[spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:998) ~[spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:890) ~[spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:875) ~[spring-webmvc-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90) ~[spring-boot-actuator-2.1.0.RELEASE.jar:2.1.0.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) ~[spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:154) ~[spring-boot-actuator-2.1.0.RELEASE.jar:2.1.0.RELEASE]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:122) ~[spring-boot-actuator-2.1.0.RELEASE.jar:2.1.0.RELEASE]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:107) ~[spring-boot-actuator-2.1.0.RELEASE.jar:2.1.0.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.1.2.RELEASE.jar:5.1.2.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) ~[tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:770) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_144]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_144]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.12.jar:9.0.12]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144]

ver 1 - reproduce webapp - Windows OS - Neha

reproduce in Windows OS Environment
refer how to run the web app using this link - https://github.com/vivekVells/TaskProcessManager#instructions-to-run-this-project-in-your-machine
attach any screenshot or verification log after you complete this task

configure sqllite db for the project

ver 1 - Replicate what was done so far in my local machine - Linux - Neha

Objective

replicate system level info pull by executing the program in your local machine which will be in Linux OS

refer how to run the pgm using this link: https://github.com/vivekVells/TaskProcessManager#instructions-to-run-this-project-in-your-machine

Reason for doing this:

This is done to verify whether we are able to reproduce in different machines kind of environment system testing

vivekvells / taskprocessmanager Goto Github PK

taskprocessmanager's Introduction

Task Process Monitor / ProcessOnitor / ProcesSanager

Objective

Coursework Information

Team Info & Roles Executed for this project

Tech Stack

Project Highlights

Future Plans/Enhancements

Quick Links:

Note: Will be updating this read me document more about the instrutions to run this in your windows machine, few more demo info & few more info. Kindly refer Gifs, pdfs, & Screenshots mentioned below for now - Version 2.0.

Demo - Version 2.0 Project Images

Project Working Demo (all demo files location: link)

Features

Future Enhancements

Note

Instructions to run this project in your machine:

To run the Web App (few recent changes made. will be updating this soon)

To run a pgm & retrieve low level system info

Application Screenshots So Far(wanna avoid scrolling a lot, use above pdf sheet)

OLD Screenshots - Version 1.0

Ver 1.1 Screenshots accordingly

Collage - Screen: Welcome, Version Info, CPU Usage info, Utility Info

Default / Home Screen - http://localhost:8080 or http://localhost:8080/home

Welcome Screen - http://localhost:8080/welcome

Version Info Screen - http://localhost:8080/version

Cpu Usage Screen - http://localhost:8080/cpu

Utility Info Screen - http://localhost:8080/utility

Test Web Response - http://localhost:8080/testresponse

Swagger UI Web page - http://localhost:8080/swagger-ui.html

Swagger Meta Data for this Application - http://localhost:8080/v2/api-docs

Page Not Found Error Page - http://localhost:8080/404.html

Old versions screenshots below.

Version 1 - Web UI

Version 1 - Verifying the system level info

taskprocessmanager's People

Contributors

Stargazers

Watchers

taskprocessmanager's Issues

Recommend Projects

Recommend Topics

Recommend Org