A light java 8+ library which allows the streaming of OSM-XML (.osm).
Example XML from wiki.openstreetmap.org:
<osm version="0.6" generator="CGImap 0.0.2">
<bounds minlat="54.0889580" minlon="12.2487570" maxlat="54.0913900" maxlon="12.2524800"/>
<node id="298884269" lat="54.0901746" lon="12.2482632" user="SvenHRO" uid="46882" visible="true" version="1" changeset="676636" timestamp="2008-09-21T21:37:45Z"/>
<node id="261728686" lat="54.0906309" lon="12.2441924" user="PikoWinter" uid="36744" visible="true" version="1" changeset="323878" timestamp="2008-05-03T13:39:23Z"/>
<node id="1831881213" version="1" changeset="12370172" lat="54.0900666" lon="12.2539381" user="lafkor" uid="75625" visible="true" timestamp="2012-07-20T09:43:19Z">
<tag k="name" v="Neu Broderstorf"/>
<tag k="traffic_sign" v="city_limit"/>
</node>
...
<node id="298884272" lat="54.0901447" lon="12.2516513" user="SvenHRO" uid="46882" visible="true" version="1" changeset="676636" timestamp="2008-09-21T21:37:45Z"/>
<way id="26659127" user="Masch" uid="55988" visible="true" version="5" changeset="4142606" timestamp="2010-03-16T11:47:08Z">
<nd ref="292403538"/>
<nd ref="298884289"/>
...
<nd ref="261728686"/>
<tag k="highway" v="unclassified"/>
<tag k="name" v="Pastower Straße"/>
</way>
<relation id="56688" user="kmvar" uid="56190" visible="true" version="28" changeset="6947637" timestamp="2011-01-12T14:23:49Z">
<member type="node" ref="294942404" role=""/>
...
<member type="node" ref="364933006" role=""/>
<member type="way" ref="4579143" role=""/>
...
<member type="node" ref="249673494" role=""/>
<tag k="name" v="Küstenbus Linie 123"/>
<tag k="network" v="VVW"/>
<tag k="operator" v="Regionalverkehr Küste"/>
<tag k="ref" v="123"/>
<tag k="route" v="bus"/>
<tag k="type" v="route"/>
</relation>
...
</osm>final OsmReader reader = OsmReader.builder()
.onBoundsRead(bounds -> /* do something with bounds */)
.onNodeRead(node -> /* do something with node */)
.onWayRead(way -> /* do something with way */)
.onRelationRead(relation -> /* do something with relation */)
.build();final OsmReadMetaData readMetaData = reader.read(getClass().getResourceAsStream("/map.osm"));
// ...final CompletableFuture<OsmReadMetaData> readMetaDataFuture = reader.readAsync(getClass().getResourceAsStream("/map.osm"));
// ...
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