org.netbeans.modeler.analytics.TemporalMap Maven / Gradle / Ivy
/**
* Copyright [2017] Gaurav Gupta
*
* 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.netbeans.modeler.analytics;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.function.BiConsumer;
public class TemporalMap {
private final static ScheduledExecutorService EXECUTOR_SERVICE = Executors.newSingleThreadScheduledExecutor();
private final ConcurrentMap map = new ConcurrentHashMap<>();
private final long delay;
private final TimeUnit unit;
private final BiConsumer consumer;
public TemporalMap(long delay, TimeUnit unit, BiConsumer consumer) {
this.delay = delay;
this.unit = unit;
this.consumer = consumer;
}
public void save(final K key, V value) {
System.out.println("Saving key : " + key + ", value " + value);
map.put(key, value);
EXECUTOR_SERVICE.schedule(() -> consumer.accept(key, map.remove(key)), delay, unit);
}
public void update(final K key, V value) {
System.out.println("Updating key : " + key + ", value " + value);
map.put(key, value);
}
public V get(K key) {
return map.get(key);
}
}
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