com.davidbracewell.wordnet.io.properties.InformationContentLoader.java Source code

Introduction

Here is the source code for com.davidbracewell.wordnet.io.properties.InformationContentLoader.java

Source

/*
 * (c) 2005 David B. Bracewell
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.davidbracewell.wordnet.io.properties;

import com.davidbracewell.collection.Counter;
import com.davidbracewell.collection.Counters;
import com.davidbracewell.io.resource.Resource;
import com.davidbracewell.string.StringUtils;
import com.davidbracewell.wordnet.Synset;
import com.davidbracewell.wordnet.WordNetPOS;
import com.davidbracewell.wordnet.io.WordNetDB;
import com.davidbracewell.wordnet.io.WordNetPropertyLoader;
import com.davidbracewell.wordnet.properties.InformationContent;
import com.davidbracewell.wordnet.properties.PropertyName;
import com.google.common.base.Preconditions;
import com.google.common.base.Strings;

/**
 * @author David B. Bracewell
 */
public class InformationContentLoader extends WordNetPropertyLoader {

    private final Resource resource;
    private final PropertyName propertyName;

    public InformationContentLoader(Resource resource, String resourceName) {
        Preconditions.checkArgument(!StringUtils.isNullOrBlank(resourceName));
        this.resource = Preconditions.checkNotNull(resource);
        this.propertyName = PropertyName.create(resourceName);
    }

    @Override
    public void load(WordNetDB db) {
        Counter<String> ic = Counters.newHashMapCounter();
        Counter<WordNetPOS> roots = Counters.newHashMapCounter();
        for (String line : resource) {
            line = line.trim();
            if (StringUtils.isNullOrBlank(line) || line.startsWith("wnver")) {
                continue;
            }
            String[] parts = line.split("\\s+");
            String key = parts[0];
            double cnt = Double.parseDouble(parts[1]);
            ic.set(key, cnt);
            if (parts.length == 3 && parts[2].equalsIgnoreCase("ROOT")) {
                roots.increment(WordNetPOS.fromString(key.substring(key.length() - 1)), cnt);
            }
        }
        for (String key : ic.items()) {
            Synset synset = db.idToSynsetMap.get(Strings.padStart(key, 9, '0').toLowerCase());
            setProperty(synset, propertyName, new InformationContent(ic.get(key) / roots.get(synset.getPOS())));
        }
    }

}//END OF InformationContentLoader