/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* 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 org.seasar.extension.jdbc.gen.internal.desc;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* 単語を複数形に変換するクラスです。
*
* @author taedium
*/
public class PluralFormDictinary {
/** {@link Pattern}をキー、置換文字列を値とするマップ */
protected LinkedHashMap<Pattern, String> patternMap = new LinkedHashMap<Pattern, String>();
/**
* インスタンスを構築します。
*/
public PluralFormDictinary() {
}
/**
* インスタンスを構築します。
*
* @param dictinary
* 正規表現の文字列をキー、置換文字列を値とするマップ
*/
public PluralFormDictinary(LinkedHashMap<String, String> dictinary) {
for (Map.Entry<String, String> entry : dictinary.entrySet()) {
Pattern pattern = Pattern.compile(entry.getKey());
patternMap.put(pattern, entry.getValue());
}
}
/**
* 単語の複数形を検索します。
*
* @param word
* 単語
* @return 見つかれば単語の複数形、見つからなければ{@code null}
*/
public String lookup(String word) {
for (Map.Entry<Pattern, String> entry : patternMap.entrySet()) {
Pattern pattern = entry.getKey();
Matcher matcher = pattern.matcher(word);
if (!matcher.matches()) {
continue;
}
matcher.reset();
StringBuffer buf = new StringBuffer();
String replacement = entry.getValue();
for (; matcher.find();) {
matcher.appendReplacement(buf, replacement);
if (matcher.hitEnd()) {
break;
}
}
matcher.appendTail(buf);
return buf.toString();
}
return null;
}
}