PooledGenericModelSerializer.java

/*
 * Copyright 2008-2011 Grant Ingersoll, Thomas Morton and Drew Farris
 *
 *    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.
 * -------------------
 * To purchase or learn more about Taming Text, by Grant Ingersoll, Thomas Morton and Drew Farris, visit
 * http://www.manning.com/ingersoll
 */
package org.elasticsearch.service.opennlp.models;

import java.io.IOException;
import java.io.InputStream;
import java.util.Map;

import opennlp.model.AbstractModel;
import opennlp.model.BinaryFileDataReader;
import opennlp.tools.util.InvalidFormatException;
import opennlp.tools.util.model.ArtifactSerializer;
import opennlp.tools.util.model.GenericModelSerializer;

/** A variant of {@link opennlp.tools.util.model.GenericModelSerializer} that
 *  conserves memory by interning the strings read as a part of a model
 *  by using a {@link com.tamingtext.opennlp.PooledGenericModelReader} to read the model.
 */
public class PooledGenericModelSerializer extends GenericModelSerializer {

  @Override
  public AbstractModel create(InputStream in) throws IOException,
      InvalidFormatException {
    return new PooledGenericModelReader(new BinaryFileDataReader(in)).getModel();
  }
  
  @SuppressWarnings("rawtypes")
  public static void register(Map<String, ArtifactSerializer> factories) {
    factories.put("model", new PooledGenericModelSerializer());
   }
}