001/* 002 * Licensed under the Apache License, Version 2.0 (the "License"); 003 * you may not use this file except in compliance with the License. 004 * You may obtain a copy of the License at 005 * 006 * http://www.apache.org/licenses/LICENSE-2.0 007 * 008 * Unless required by applicable law or agreed to in writing, software 009 * distributed under the License is distributed on an "AS IS" BASIS, 010 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 011 * See the License for the specific language governing permissions and 012 * limitations under the License. 013 */ 014package org.gbif.common.parsers; 015 016import org.gbif.common.parsers.core.FileBasedDictionaryParser; 017 018/** 019 * Singleton implementation of the dictionary that uses the file /dictionaries/parse/boolean.txt. 020 */ 021public class BooleanParser extends FileBasedDictionaryParser<Boolean> { 022 023 private static BooleanParser singletonObject = null; 024 025 private BooleanParser() { 026 super(false); 027 // use dict file last 028 init(BooleanParser.class.getResourceAsStream("/dictionaries/parse/boolean.tsv")); 029 } 030 031 public static BooleanParser getInstance() { 032 synchronized (BooleanParser.class) { 033 if (singletonObject == null) { 034 singletonObject = new BooleanParser(); 035 } 036 } 037 return singletonObject; 038 } 039 040 @Override 041 protected Boolean fromDictFile(String value) { 042 return Boolean.parseBoolean(value); 043 } 044}