/*******************************************************************************
* Copyright (c) 2012 GigaSpaces Technologies Ltd. All rights reserved
*
* 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.cloudifysource.esc.driver.provisioning.context;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.Callable;
/****************
* .
* @author itaif
*
*/
public class DefaultProvisioningDriverClassContext implements ProvisioningDriverClassContext {
private final Map<String, Object> context = new HashMap<String, Object>();
@Override
public Object getOrCreate(final String key, final Callable<Object> factory) throws Exception {
synchronized (context) {
if (!context.containsKey(key)) {
final Object value = factory.call();
context.put(key, value);
return value;
}
return context.get(key);
}
}
}