Can't run Grok

[Michelange baudoux]

Until now, I can't manage making Grok run properly :

Here are the least unsuccessful methods I tried :

I open a command line into :

    C:\grok\samples\grammar>

===== FIRST TRY : I type the command that is given in the Readme :

java -verbose -cp C:\grok\lib\opennlp.jar;C:\grok\output_bk\grok-0.6.0.jar; opennlp.grok.Grokling sample.gram

=== And I get the following :

...
[Loaded opennlp.grok.Grokling]
[Loaded opennlp.common.parse.ParseException]
[Loaded opennlp.common.parse.Parser]
[Loaded opennlp.common.parse.Lexicon]
Exception in thread "main" java.lang.NoSuchMethodError: main
[Loaded java.lang.StackTraceElement from C:\PROGRAM FILES\JAVA\J2RE1.4.1_01\lib\ rt.jar]
[Loaded java.util.HashMap$KeySet from C:\PROGRAM FILES\JAVA\J2RE1.4.1_01\lib\rt.
jar]
[Loaded java.util.HashMap$KeyIterator from C:\PROGRAM FILES\JAVA\J2RE1.4.1_01\li
b\rt.jar]

===== SECOND  TRY : I type :

    java -verbose -cp C:\grok\lib\opennlp.jar;C:\grok\output_bk\grok-0.6.0.jar; opennlp.grokkit.Run simple.gram

=== And I get the following :
...
[Loaded opennlp.grokkit.Run]
[Loaded opennlp.grokkit.gui.Parameters]
[Loaded java.io.IOException from C:\PROGRAM FILES\JAVA\J2RE1.4.1_01\lib\rt.jar]
[Loaded opennlp.common.NLPException]
[Loaded opennlp.common.parse.LexException]
[Loaded opennlp.common.PipelineException]
[Loaded java.lang.StringCoding from C:\PROGRAM FILES\JAVA\J2RE1.4.1_01\lib\rt.ja
r]
[Loaded java.lang.ThreadLocal$ThreadLocalMap from C:\PROGRAM FILES\JAVA\J2RE1.4.
1_01\lib\rt.jar]
[Loaded java.lang.ThreadLocal$ThreadLocalMap$Entry from C:\PROGRAM FILES\JAVA\J2
RE1.4.1_01\lib\rt.jar]
[Loaded java.lang.StringCoding$StringDecoder from C:\PROGRAM FILES\JAVA\J2RE1.4.
1_01\lib\rt.jar]
[Loaded java.lang.StringCoding$CharsetSD from C:\PROGRAM FILES\JAVA\J2RE1.4.1_01
\lib\rt.jar]
[Loaded java.io.FileNotFoundException from C:\PROGRAM FILES\JAVA\J2RE1.4.1_01\li
b\rt.jar]
grok>

=== Then, I type :

    Brazil defeated China

=== And I get the following :

Parsing `Brazil defeated China'...
Syntactic Category
------------------

[Loaded opennlp.grok.util.Params]
   

==============================================================================

In both cases, I'm having difficulties using Grok.

Any help would be gratefully welcome.

Thank you,

Michelange

[Jason Baldridge]

Try using the class opennlp.grok.TextGrok instead of Grokling or grokkit.Run. You'll need to make sure that all the jars in lib/ are in your classpath.  Also, look at the scripts in the bin/ directory to see how the classpaths are set up.   I suppose these only work for Unix, but could be easily adapted for Windows.

Hope that helps!

Jason

[Ioannis D. Canellos]

No special adaptations are required for windows. The only problem with windows is building grok. The build.bat file doesn't work both on XP and 2000

here is a version that should build grok, as long as you have set your JAVA_HOME and have tools.jar in your CLASSPATH:

set LOCALCLASSPATH=.\lib\ant.jar;.\lib\jakarta-ant-optional.jar;.\lib\jaxp.jar;.\lib\crimson.jar;%JAVA_HOME%\lib\tools.jar;.\lib\jdom.jar;.\lib\antlr-all.jar;.\lib\gnu-regexp.jar
set ANT_HOME=.\lib

%JAVA_HOME%\bin\java -Dant.home=%ANT_HOME% -classpath %LOCALCLASSPATH% org.apache.tools.ant.Main %1

Now about Grokling, in the samples\grammar dir
there are specific instructions on how you should run the tests.

Good luck