/*
* 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());
}
}