I can't see the image that you attached. Anyways, if you are running via command line (ie. runtime/local): set "plugin.folders" to "plugins" in "NUTCH_HOME/runtime/local/conf/nutch-site.xml". For running from Eclipse, set "plugin.folders" to the absolute path of directory where the plugins are generated (ie. NUTCH_HOME/build/plugins) in "NUTCH_HOME/conf/nutch-site.xml"
On Thu, Jun 13, 2013 at 5:38 AM, Tony Mullins <[email protected]>wrote: > Tejas, > > I can now successfully run the plugin from terminal like bin/nutch > parsechecker http://www.google.nl.... > > But if I try to run my code directly from eclipse , with main class as > 'org.apache.nutch.parse.ParserChecker' and program arguments as ' > http://www.google.nl' it fails with same exception of ClassNotFound. > > Please see the attached image. > > [image: Inline image 1] > > > I have tried 'ant clean' in my Nutch2.2 source... but same error !!! > > Could you please help me fixing this issue. > > Thanks, > Tony > > > > > On Thu, Jun 13, 2013 at 2:23 PM, Tony Mullins <[email protected]>wrote: > >> Thank you very much Tejas. It worked. :) >> >> Just wondering why did you ask me to remove the 'plugin.folders' from >> conf/nutch-site.xml ? >> And the problem was due to bad cache/runtime build ? >> >> Thank you again !!! >> Tony. >> >> >> >> On Thu, Jun 13, 2013 at 1:47 PM, Tejas Patil <[email protected]>wrote: >> >>> I don't see any attachments with the mail. >>> >>> Anyways, you need to: >>> 1. remove all your changes from conf/nutch-default.xml. Make it in sync >>> with svn. (rm conf/nutch-default.xml && svn up conf/nutch-default.xml) >>> 2. In conf/nutch-site.xml, remove the entry for "plugin.folders" >>> 3. run "ant clean runtime" >>> >>> Now try again. >>> >>> >>> On Thu, Jun 13, 2013 at 1:39 AM, Tony Mullins <[email protected] >>> >wrote: >>> >>> > Hi Tejas, >>> > >>> > Thanks for pointing out the problem. I have changed the package to >>> > kaqqao.nutch.selector and have also modified the package in java source >>> > files as package kaqqao.nutch.selector; >>> > >>> > But I am still getting the ClassNotFound exception... please see >>> attached >>> > images !!! >>> > >>> > Please note that I am using fresh Nutch 2.2 source without additional >>> > patch ... do I need to apply any patch to run this ? >>> > >>> > Thanks, >>> > Tony. >>> > >>> > >>> > >>> > On Thu, Jun 13, 2013 at 1:16 PM, Tejas Patil <[email protected] >>> >wrote: >>> > >>> >> The package structure you actually have is: >>> >> *kaqqao.nutch.plugin.selector;* >>> >> >>> >> In src/plugin/element-selector/plugin.xml you have defined it as: >>> >> >>> >> <extension id="*kaqqao.nutch.selector*.HtmlElementSelectorIndexer" >>> >> name="Nutch Blacklist and Whitelist Indexing Filter" >>> >> point="org.apache.nutch.indexer.IndexingFilter"> >>> >> <implementation id="HtmlElementSelectorIndexer" >>> >> class="*kaqqao.nutch.selector* >>> >> .HtmlElementSelectorIndexer"/> >>> >> </extension> >>> >> >>> >> It aint the same and thats why it cannot load that class at runtime. >>> Make >>> >> it consistent and try again. >>> >> It worked at my end after changing the package structure to >>> >> kaqqao.nutch.selector >>> >> >>> >> >>> >> On Wed, Jun 12, 2013 at 11:45 PM, Tony Mullins < >>> [email protected] >>> >> >wrote: >>> >> >>> >> > Hi Tejas, >>> >> > >>> >> > I am following this example >>> >> > https://github.com/veggen/nutch-element-selector. And now I have >>> tried >>> >> > this example without any changes to my fresh source of Nutch 2.2. >>> >> > >>> >> > Attached is my patch ( change set) on fresh Nutch 2.2 source. >>> >> > Kindly review it and please let me know if I am missing something. >>> >> > >>> >> > Thanks, >>> >> > Tonny >>> >> > >>> >> > >>> >> > On Thu, Jun 13, 2013 at 11:19 AM, Tejas Patil < >>> [email protected] >>> >> >wrote: >>> >> > >>> >> >> Weird. I would like to have a quick peek into your changes. Maybe >>> you >>> >> are >>> >> >> doing something wrong which is hard to predict and figure out by >>> asking >>> >> >> bunch of questions to you over email. Can you attach a patch file >>> of >>> >> your >>> >> >> changes ? Please remove the fluff from it and only keep the bare >>> >> essential >>> >> >> things in the patch. Also, if you are working for some company, >>> make >>> >> sure >>> >> >> that you attaching some code here should not be against your >>> >> >> organisational >>> >> >> policy. >>> >> >> >>> >> >> Thanks, >>> >> >> Tejas >>> >> >> >>> >> >> On Wed, Jun 12, 2013 at 11:03 PM, Tony Mullins < >>> >> [email protected] >>> >> >> >wrote: >>> >> >> >>> >> >> > I have done this all. Created my plugin's ivy.xml , plugin.xml , >>> >> >> build,xml >>> >> >> > . Added the entry in nutch-site.xml and src>plugin>build.xml. >>> >> >> > But I am still getting "PluginRuntimeException: >>> >> >> > java.lang.ClassNotFoundException" >>> >> >> > >>> >> >> > >>> >> >> > Is there any other configuration that I am missing or its Nutch >>> 2.2 >>> >> >> issues >>> >> >> > ? >>> >> >> > >>> >> >> > Thanks, >>> >> >> > Tony. >>> >> >> > >>> >> >> > >>> >> >> > On Thu, Jun 13, 2013 at 1:09 AM, Tejas Patil < >>> >> [email protected] >>> >> >> > >wrote: >>> >> >> > >>> >> >> > > Here is the relevant wiki page: >>> >> >> > > http://wiki.apache.org/nutch/WritingPluginExample >>> >> >> > > >>> >> >> > > Although its old, I think that it will help. >>> >> >> > > >>> >> >> > > >>> >> >> > > On Wed, Jun 12, 2013 at 1:01 PM, Sebastian Nagel < >>> >> >> > > [email protected] >>> >> >> > > > wrote: >>> >> >> > > >>> >> >> > > > Hi Tony, >>> >> >> > > > >>> >> >> > > > you have to "register" your plugin in >>> >> >> > > > src/plugin/build.xml >>> >> >> > > > >>> >> >> > > > Does your >>> >> >> > > > src/plugin/myplugin/plugin.xml >>> >> >> > > > properly propagate jar file, >>> >> >> > > > extension point and implementing class? >>> >> >> > > > >>> >> >> > > > And, finally, you have to add your plugin >>> >> >> > > > to the property plugin.includes in nutch-site.xml >>> >> >> > > > >>> >> >> > > > Cheers, >>> >> >> > > > Sebastian >>> >> >> > > > >>> >> >> > > > On 06/12/2013 07:48 PM, Tony Mullins wrote: >>> >> >> > > > > Hi, >>> >> >> > > > > >>> >> >> > > > > I am trying simple ParseFilter plugin in Nutch 2.2. And I >>> can >>> >> >> build >>> >> >> > it >>> >> >> > > > and >>> >> >> > > > > also the src>plugin>build.xml successfully. But its .jar >>> file >>> >> is >>> >> >> not >>> >> >> > > > being >>> >> >> > > > > created in my runtime>local>plugins>myplugin directory. >>> >> >> > > > > >>> >> >> > > > > And on running >>> >> >> > > > > "bin/nutch parsechecker http://www.google.nl"; >>> >> >> > > > > I get this error " java.lang.RuntimeException: >>> >> >> > > > > org.apache.nutch.plugin.PluginRuntimeException: >>> >> >> > > > > java.lang.ClassNotFoundException: >>> >> >> > > > > com.xyz.nutch.selector.HtmlElementSelectorFilter" >>> >> >> > > > > >>> >> >> > > > > If I go to MyNutch2.2Source/build/myplugin , I can see >>> plugin's >>> >> >> jar >>> >> >> > > with >>> >> >> > > > > test & classes directory created there. If I copy .jar >>> from >>> >> here >>> >> >> and >>> >> >> > > > paste >>> >> >> > > > > it to my runtime>local>plugins>myplugin directory with >>> >> plugin.xml >>> >> >> > file >>> >> >> > > > then >>> >> >> > > > > too I get the same exception of class not found. >>> >> >> > > > > >>> >> >> > > > > I have not made any changes in src>plugin>build-plugin.xml. >>> >> >> > > > > >>> >> >> > > > > Could you please guide me that what is I am doing wrong >>> here ? >>> >> >> > > > > >>> >> >> > > > > Thanks, >>> >> >> > > > > Tony >>> >> >> > > > > >>> >> >> > > > >>> >> >> > > > >>> >> >> > > >>> >> >> > >>> >> >> >>> >> > >>> >> > >>> >> >>> > >>> > >>> >> >> >
