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 >> >> >> > > > > >> >> >> > > > >> >> >> > > > >> >> >> > > >> >> >> > >> >> >> >> >> > >> >> > >> >> >> > >> > >> > >
