/*
* Copyright (c) 2008-2017, Hazelcast, Inc. 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 com.hazelcast.cache.impl;
import com.hazelcast.internal.diagnostics.StoreLatencyPlugin;
import com.hazelcast.internal.diagnostics.StoreLatencyPlugin.LatencyProbe;
import javax.cache.Cache;
import javax.cache.integration.CacheWriter;
import javax.cache.integration.CacheWriterException;
import java.util.Collection;
public class LatencyTrackingCacheWriter<K, V> implements CacheWriter<K, V> {
static final String KEY = "CacheStoreLatency";
private final CacheWriter<K, V> delegate;
private final LatencyProbe writeProbe;
private final LatencyProbe writeAllProbe;
private final LatencyProbe deleteProbe;
private final LatencyProbe deleteAllProbe;
public LatencyTrackingCacheWriter(CacheWriter<K, V> delegate, StoreLatencyPlugin plugin, String cacheName) {
this.delegate = delegate;
this.writeProbe = plugin.newProbe(KEY, cacheName, "write");
this.writeAllProbe = plugin.newProbe(KEY, cacheName, "writeAll");
this.deleteProbe = plugin.newProbe(KEY, cacheName, "delete");
this.deleteAllProbe = plugin.newProbe(KEY, cacheName, "deleteAll");
}
@Override
public void write(Cache.Entry<? extends K, ? extends V> entry) throws CacheWriterException {
long startNanos = System.nanoTime();
try {
delegate.write(entry);
} finally {
writeProbe.recordValue(System.nanoTime() - startNanos);
}
}
@Override
public void writeAll(Collection<Cache.Entry<? extends K, ? extends V>> collection) throws CacheWriterException {
long startNanos = System.nanoTime();
try {
delegate.writeAll(collection);
} finally {
writeAllProbe.recordValue(System.nanoTime() - startNanos);
}
}
@Override
public void delete(Object o) throws CacheWriterException {
long startNanos = System.nanoTime();
try {
delegate.delete(o);
} finally {
deleteProbe.recordValue(System.nanoTime() - startNanos);
}
}
@Override
public void deleteAll(Collection<?> collection) throws CacheWriterException {
long startNanos = System.nanoTime();
try {
delegate.deleteAll(collection);
} finally {
deleteAllProbe.recordValue(System.nanoTime() - startNanos);
}
}
}