#To build and deploy locally gradlew clean jar publishToMavenLocal
A library to base command line tools.
Step 1. Add the JitPack repository to your build file
<repositories>
<repository>
<id>jitpack.io</id>
<url>https://jitpack.io</url>
</repository>
</repositories>
Step 2. Add the dependency
<dependency>
<groupId>com.github.krishnact</groupId>
<artifactId>commandlinetool-base</artifactId>
<version>0.4.12</version>
</dependency>
See jitpack to learn how to used in other build tools. https://jitpack.io/#krishnact/commandlinetool-base/0.4.9
Example: Writing a simple URL Size counter, in Groovy.
@Grapes([
@GrabResolver(name='jitpack.io', root='https://jitpack.io'),
@Grab('org.slf4j:slf4j-log4j12:1.7.7'),
@Grab('com.h2database:h2:1.4.196'),
@Grab('com.github.krishnact:commandlinetool-base:0.4.12'),
@GrabExclude(group = 'org.codehaus.groovy', module='groovy-sql') ,
@GrabExclude(group = 'org.codehaus.groovy', module='groovy-cli-commons') ,
@GrabExclude(group = 'org.codehaus.groovy', module='groovy-json') ,
@GrabExclude(group = 'org.codehaus.groovy', module='groovy-xml') ,
@GrabExclude(group = 'org.codehaus.groovy', module='groovy-templates')
])
import org.himalay.commandline.Option;
import org.himalay.commandline.CLTBase;
import groovy.cli.commons.OptionAccessor;
class URLBytesCounter extends CLTBase
{
@Option(required= true)
List<String> sites;
@Override
protected void realMain(OptionAccessor arg0) {
sites.collectEntries{url->
info("Working on ${url}")
[url, new URL(url).text.length()]
}.each{
println "${it.value} bytes in ${it.key}"
}
}
public static void main(String [] args) {
CLTBase._main(new URLBytesCounter(), args);
}
}
Example of using SQL query
import org.himalay.persist.RDBMS
import org.himalay.persist.Table
public static void main(String [] args){
String url ='https://data.ny.gov/api/views/sjc6-ftj4/rows.csv?accessType=DOWNLOAD';
File file = File.createTempFile("bbb", ".csv")
file.deleteOnExit();
file.text = new URL(url).text
RDBMS rdbms = RDBMS.h2Mem('bb',false);
rdbms.importCSV(file, 'broadband');
String table = 'broadband';
int limit = 20;
rdbms.h2AutoColumnsType(table, limit)
Table tbl = rdbms.toTable('SELECT sum("# Cable Providers") providers, County FROM BROADBAND group by county order by providers');
tbl.csvDelim = '|';
println tbl.toCSV();
}