| /* |
| * 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 org.apache.clerezza.uima.casconsumer; |
| |
| import org.apache.clerezza.uima.casconsumer.ao.AOMappingStrategy; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * A repository for {@link CASMappingStrategy} implementations |
| */ |
| public class CASMappingStrategiesRepository { |
| private static CASMappingStrategiesRepository instance = new CASMappingStrategiesRepository(); |
| |
| private Map<String, CASMappingStrategy> strategies; |
| |
| public static CASMappingStrategiesRepository getInstance() { |
| return instance; |
| } |
| |
| private CASMappingStrategiesRepository() { |
| initialize(); |
| } |
| |
| private void initialize() { |
| strategies = new HashMap<String, CASMappingStrategy>(); |
| strategies.put(null, new DefaultCASMappingStrategy()); |
| strategies.put("", new DefaultCASMappingStrategy()); |
| strategies.put("default", new DefaultCASMappingStrategy()); |
| strategies.put("ao", new AOMappingStrategy()); |
| } |
| |
| public void register(CASMappingStrategy casMappingStrategy, String name) { |
| strategies.put(name, casMappingStrategy); |
| } |
| |
| public CASMappingStrategy getStrategy(String name) throws UnknownStrategyException { |
| if (strategies.get(name) != null) |
| return strategies.get(name); |
| else |
| throw new UnknownStrategyException(new StringBuilder("Could not find a strategy with name '").append(name). |
| append("'").toString()); |
| } |
| } |