jaydonnell

    engine = Moonstone::Engine.new
    engine.index(@some_docs)
    engine.reader do |r|
      r.terms.for_field('name').sort.should == %w{ burger king depeche mode }.sort
    end

jaydonnell

# Use Jruby to read hadoop sequence files

def load_libs(libs)
  Dir.glob(File.join(libs,"*.jar")).each { |f|
    require f
  }
end

load_libs ENV["HADOOP_HOME"]
load_libs File.join(ENV["HADOOP_HOME"], 'lib')

jaydonnell

import org.jruby.embed.PathType;
import org.jruby.embed.ScriptingContainer;

public class Embedder {
	public ScriptingContainer container;
	public String file;
	
    public Embedder(String filename) {
		file = filename;
        container = new ScriptingContainer();

jaydonnell

package play;

import org.jruby.embed.PathType;
import org.jruby.embed.ScriptingContainer;

public class ClassUseSample {
	public ScriptingContainer container;
	public String file;
	
    public ClassUseSample(String filename) {

jaydonnell

# i don't have a rails app handy, but I think this works if you have dependt destroy set for the child relationship
post.comments.delete(@some_comment)

jaydonnell

# instant.rake
# Rake rules for compiling and running trivial Java programs
# 
# Usage:  rake com.example.MonkeyShines
#  Source goes under ./src
#  Classes end up under ./target

require 'rake/clean'

libs = FileList["lib/*"]

jaydonnell

A="jar $JOB_JAR com.attinteractive.ar.hadoopjobs.examplejob.Main $1 $2"
B="mvn exec:exec -Dexec.args="
exec $B"$A"

jaydonnell

String xmlFile = "Wikipedia-Category-GlobalWarming-20090919043526.xml";
InputStream is = WikipediaSeederTest.class.getClassLoader().getResourceAsStream(xmlFile);

jaydonnell

        XPath xpath = XPathFactory.newInstance().newXPath();
        String xmlFile = "Wikipedia-Category-GlobalWarming-20090919043526.xml";
        InputStream is = WikipediaSeederTest.class.getClassLoader().getResourceAsStream(xmlFile);
        
        InputSource inputSource = new InputSource( is );
        NamespaceContext context = new NamespaceContextMap("wp", "http://www.mediawiki.org/xml/export-0.3/");
        xpath.setNamespaceContext(context);
        NodeList elements = (NodeList)xpath.evaluate(
                 "//wp:page", inputSource, XPathConstants.NODESET );

jaydonnell

  int count = Files.readLines( 
      new File("/path/to/file"), 
      Charsets.UTF_8, // remember that? :) 
      new LineProcessor<Integer>() { 
        int count = 0; 
        public boolean processLine(String line) { 
          count++; 
        } 
        public Integer getResult() { return count; } 
      });