CreateBerkeleyLmGoogleBinary.java

/*
 * Copyright 2010
 * Ubiquitous Knowledge Processing (UKP) Lab
 * Technische Universität Darmstadt
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package de.tudarmstadt.ukp.dkpro.core.frequency.berkeleylm;

import java.io.IOException;

import de.tudarmstadt.ukp.dkpro.core.api.resources.DkproContext;
import edu.berkeley.nlp.lm.NgramLanguageModel;
import edu.berkeley.nlp.lm.io.LmReaders;
import edu.berkeley.nlp.lm.util.Logger;

public class CreateBerkeleyLmGoogleBinary
{

    
    public static void main(String[] args) throws IOException
    {
        String path = DkproContext.getContext().getWorkspace("berkeley_lm").getAbsolutePath();    
        run(path + "/en", "target/blm_en.ser");
        run(path + "/de", "target/blm_de.ser");
    }

    private static void run(String path, String outFile) {
        Logger.setGlobalLogger(new Logger.SystemLogger(System.out, System.err));
        Logger.startTrack("Reading Lm File " + path + " . . . ");
        final NgramLanguageModel<String> lm = LmReaders.readLmFromGoogleNgramDir(path, true, true);
        Logger.endTrack();
        Logger.startTrack("Writing to file " + outFile + " . . . ");
        LmReaders.writeLmBinary(lm, outFile);
        Logger.endTrack();
        
    }
}