I think you need to give the right name to your "plugin.jar" it should be location-aware.jar.
-Ray- 2009/4/27 Joel Halbert <[email protected]> > Hi, > > I'm trying to register an simple extension point for my plugin - using > nutch 0.9. > > I keep running into this exception from hadoop.log: > > > 2009-04-27 18:15:56,155 INFO plugin.PluginRepository - Ontology > Model Loader (org.apache.nutch.ontology.Ontology) > 2009-04-27 18:15:56,157 INFO indexer.IndexingFilters - Adding > org.apache.nutch.indexer.basic.BasicIndexingFilter > 2009-04-27 18:15:56,160 WARN mapred.LocalJobRunner - job_oz369z > java.lang.NoClassDefFoundError: IndexingFilter > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:621) > at > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) > at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) > at java.net.URLClassLoader.access$000(URLClassLoader.java:56) > at java.net.URLClassLoader$1.run(URLClassLoader.java:195) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > at java.lang.ClassLoader.loadClass(ClassLoader.java:307) > at java.lang.ClassLoader.loadClass(ClassLoader.java:252) > at > org.apache.nutch.plugin.Extension.getExtensionInstance(Extension.java:156) > at > org.apache.nutch.indexer.IndexingFilters.<init>(IndexingFilters.java:68) > at org.apache.nutch.indexer.Indexer.configure(Indexer.java:143) > at > org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:58) > at > org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:82) > at > org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34) > at > org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:58) > at > org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:82) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:170) > at org.apache.hadoop.mapred.LocalJobRunner > $Job.run(LocalJobRunner.java:126) > Caused by: java.lang.ClassNotFoundException: IndexingFilter > at java.net.URLClassLoader$1.run(URLClassLoader.java:200) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > at java.lang.ClassLoader.loadClass(ClassLoader.java:307) > at java.lang.ClassLoader.loadClass(ClassLoader.java:252) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) > ... 20 more > > > > > My config is pretty simple: > > nutch-site.xml > > <property> > <name>plugin.includes</name> > <value>protocol-http|urlfilter-regex|parse-(text|html|js)|index-basic| > query-(basic|site|url)|summary-basic|scoring-opic|urlnormalizer-(pass| > regex|basic)|location-aware</value> > </property> > > > > plugin.xml > > <?xml version="1.0" encoding="UTF-8"?> > <plugin > id="location-aware" > name="Location Aware Indexer" > version="0.0.1" > provider-name="myplugin.com"> > > <runtime> > <library name="myplugin.jar"> > <export name="*"/> > </library> > </runtime> > > <requires> > <import plugin="nutch-extensionpoints"/> > </requires> > > <extension id="com.myplugin" > name="My Plugin" > point="org.apache.nutch.indexer.IndexingFilter"> > <implementation id="MyPluginIndexingFilter" > class="com.myplugin.MyPLuginIndexingFilter"/> > </extension> > > </plugin> > > > > Thanks for any pointers. > > Joel > >
