Si se echa un vistazo en el interior bin/nutch
secuencia de comandos,' ll ver que se invoca una clase Java correspondiente a su comando:
# figure out which class to run
if [ "$COMMAND" = "crawl" ] ; then
CLASS=org.apache.nutch.crawl.Crawl
elif [ "$COMMAND" = "inject" ] ; then
CLASS=org.apache.nutch.crawl.Injector
elif [ "$COMMAND" = "generate" ] ; then
CLASS=org.apache.nutch.crawl.Generator
elif [ "$COMMAND" = "freegen" ] ; then
CLASS=org.apache.nutch.tools.FreeGenerator
elif [ "$COMMAND" = "fetch" ] ; then
CLASS=org.apache.nutch.fetcher.Fetcher
elif [ "$COMMAND" = "fetch2" ] ; then
CLASS=org.apache.nutch.fetcher.Fetcher2
elif [ "$COMMAND" = "parse" ] ; then
CLASS=org.apache.nutch.parse.ParseSegment
elif [ "$COMMAND" = "readdb" ] ; then
CLASS=org.apache.nutch.crawl.CrawlDbReader
elif [ "$COMMAND" = "convdb" ] ; then
CLASS=org.apache.nutch.tools.compat.CrawlDbConverter
elif [ "$COMMAND" = "mergedb" ] ; then
CLASS=org.apache.nutch.crawl.CrawlDbMerger
elif [ "$COMMAND" = "readlinkdb" ] ; then
CLASS=org.apache.nutch.crawl.LinkDbReader
elif [ "$COMMAND" = "readseg" ] ; then
CLASS=org.apache.nutch.segment.SegmentReader
elif [ "$COMMAND" = "segread" ] ; then
echo "[DEPRECATED] Command 'segread' is deprecated, use 'readseg' instead."
CLASS=org.apache.nutch.segment.SegmentReader
elif [ "$COMMAND" = "mergesegs" ] ; then
CLASS=org.apache.nutch.segment.SegmentMerger
elif [ "$COMMAND" = "updatedb" ] ; then
CLASS=org.apache.nutch.crawl.CrawlDb
elif [ "$COMMAND" = "invertlinks" ] ; then
CLASS=org.apache.nutch.crawl.LinkDb
elif [ "$COMMAND" = "mergelinkdb" ] ; then
CLASS=org.apache.nutch.crawl.LinkDbMerger
elif [ "$COMMAND" = "index" ] ; then
CLASS=org.apache.nutch.indexer.Indexer
elif [ "$COMMAND" = "solrindex" ] ; then
CLASS=org.apache.nutch.indexer.solr.SolrIndexer
elif [ "$COMMAND" = "dedup" ] ; then
CLASS=org.apache.nutch.indexer.DeleteDuplicates
elif [ "$COMMAND" = "solrdedup" ] ; then
CLASS=org.apache.nutch.indexer.solr.SolrDeleteDuplicates
elif [ "$COMMAND" = "merge" ] ; then
CLASS=org.apache.nutch.indexer.IndexMerger
elif [ "$COMMAND" = "plugin" ] ; then
CLASS=org.apache.nutch.plugin.PluginRepository
elif [ "$COMMAND" = "server" ] ; then
CLASS='org.apache.nutch.searcher.DistributedSearch$Server'
else
CLASS=$COMMAND
fi
# run it
exec "$JAVA" $JAVA_HEAP_MAX $NUTCH_OPTS -classpath "$CLASSPATH" $CLASS "[email protected]"
a partir de ahí, es sólo la cuestión de mirar el API docs y, si es necesario, el código fuente para las clases.
Por favor, dime que esta no es la respuesta. http://stackoverflow.com/questions/4340222/nutch-api-advice – ChrisJF