/*
* Copyright 2010-2011 the original author or authors.
*
* 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 com.starflow.wf.engine.core;
import com.starflow.wf.engine.Configuration;
import com.starflow.wf.engine.core.data.DataSourceRelaDataManager;
import com.starflow.wf.engine.core.data.NoSqlRelaDataManager;
import com.starflow.wf.engine.core.data.RelaDataManager;
import com.starflow.wf.engine.core.data.ThreadLocalRelaDataManager;
public class RelaDataManagerBuilder {
private static final String RELA_DATA_MANAGER_TYPE = "com.starflow.wf.relaData.type";
private static RelaDataManager relaDataManager;
public static RelaDataManager buildRelaDataManager() {
if(relaDataManager == null) {
synchronized (RelaDataManagerBuilder.class) {
if(relaDataManager == null) {
Configuration configuration = Configuration.getInstance();
String type = configuration.getProperty(RELA_DATA_MANAGER_TYPE);
if("datasource".equals(type))
relaDataManager = new DataSourceRelaDataManager();
else if("nosql".equals(type))
relaDataManager = new NoSqlRelaDataManager();
else
relaDataManager = new ThreadLocalRelaDataManager();
}
}
}
return relaDataManager;
}
}