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/*
* Copyright (c) 2016 Cisco and/or its affiliates.
*
* 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 io.fd.honeycomb.translate;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import javax.annotation.concurrent.ThreadSafe;
/**
* Simple context class that provides transient storage during one or more read/write operations.
* Internally Thread-save.
*/
@ThreadSafe
public class ModificationCache implements AutoCloseable {
protected final Map<Object, Object> map;
public ModificationCache() {
map = new ConcurrentHashMap<>();
}
public Object get(final Object o) {
return map.get(o);
}
public boolean containsKey(final Object o) {
return map.containsKey(o);
}
public Object put(final Object o, final Object o2) {
return map.put(o, o2);
}
@Override
public void close() {
map.clear();
}
}
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