Package com.clearnlp.run

Source Code of com.clearnlp.run.C2DConvert

/**
* Copyright (c) 2009/09-2012/08, Regents of the University of Colorado
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
*    list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
*    this list of conditions and the following disclaimer in the documentation
*    and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* Copyright 2012/09-2013/04, 2013/11-Present, University of Massachusetts Amherst
* Copyright 2013/05-2013/10, IPSoft Inc.
*
* 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 com.clearnlp.run;

import java.io.PrintStream;
import java.util.List;

import org.kohsuke.args4j.Option;

import com.clearnlp.component.AbstractComponent;
import com.clearnlp.constituent.CTLib;
import com.clearnlp.constituent.CTLibEn;
import com.clearnlp.constituent.CTReader;
import com.clearnlp.constituent.CTTree;
import com.clearnlp.conversion.AbstractC2DConverter;
import com.clearnlp.dependency.DEPFeat;
import com.clearnlp.dependency.DEPNode;
import com.clearnlp.dependency.DEPTree;
import com.clearnlp.nlp.NLPGetter;
import com.clearnlp.reader.AbstractReader;
import com.clearnlp.util.UTInput;
import com.clearnlp.util.UTOutput;


public class C2DConvert extends AbstractRun
{
  @Option(name="-i", usage="input path (required)", required=true, metaVar="<filepath>")
  private String s_inputPath;
  @Option(name="-ie", usage="input file extension (default: .*)", required=false, metaVar="<regex>")
  private String s_inputExt = ".*";
  @Option(name="-oe", usage="output file extension (default: dep)", required=false, metaVar="<string>")
  private String s_outputExt = "dep";
  @Option(name="-l", usage="language (default: "+AbstractReader.LANG_EN+")", required=false, metaVar="<language>")
  private String s_language = AbstractReader.LANG_EN;
  @Option(name="-h", usage="name of a headrule file (required)", required=true, metaVar="<filename>")
  private String s_headruleFile;
  @Option(name="-m", usage="merge labels (default: null)", required=false, metaVar="<string>")
  private String s_mergeLabels = null;
  @Option(name="-n", usage="if set, normalize empty category indices", required=false, metaVar="<boolean>")
  private boolean b_normalize = false;

  public C2DConvert() {}
 
  public C2DConvert(String[] args) throws Exception
  {
    initArgs(args);
   
    AbstractC2DConverter c2d = NLPGetter.getC2DConverter(s_language, s_headruleFile, s_mergeLabels);
    AbstractComponent  morph = NLPGetter.getMPAnalyzer(s_language);
    List<String[]> filenames = getFilenames(s_inputPath, s_inputExt, s_outputExt);
    int n;
   
    for (String[] io : filenames)
    {
      n = convert(c2d, morph, s_language, io[0], io[1], b_normalize);
      System.out.printf("%s: %d trees\n", io[0], n);
    }
  }
 
  protected int convert(AbstractC2DConverter c2d, AbstractComponent morph, String language, String inputFile, String outputFile, boolean normalize)
  {
    CTReader  reader = new CTReader(UTInput.createBufferedFileReader(inputFile));
    PrintStream fout = UTOutput.createPrintBufferedFileStream(outputFile);
    CTTree  cTree;
    DEPTree dTree;
    int n;
   
    for (n=0; (cTree = reader.nextTree()) != null; n++)
    {
      if (normalizeCTLib.normalizeIndices(cTree);
     
      if (language.equals(AbstractReader.LANG_EN))
        CTLibEn.preprocessTree(cTree);
     
      dTree = c2d.toDEPTree(cTree);
     
      if (dTree == null)
      {
        fout.println(getNullTree()+"\n");
      }
      else
      {
        morph.process(dTree);
        fout.println(dTree.toStringDAG()+"\n");
      }
    }
   
    reader.close();
    fout.close();
   
    return n;
  }
 
  private DEPTree getNullTree()
  {
    DEPTree tree = new DEPTree();
   
    DEPNode dummy = new DEPNode(1, "NULL", "NULL", "NULL", new DEPFeat());
    dummy.setHead(tree.get(0), "NULL");
   
    tree.add(dummy);
    tree.initXHeads();
    tree.initSHeads();
   
    return tree;
  }

  public static void main(String[] args)
  {
    try
    {
      new C2DConvert(args);
    }
    catch (Exception e) {e.printStackTrace();}
  }
}
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