cacheOverflow.Worker Maven / Gradle / Ivy
/*
* Copyright (c) 2010-2015 Pivotal Software, 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. See accompanying
* LICENSE file.
*/
package cacheOverflow;
import com.gemstone.gemfire.cache.CacheFactory;
import com.gemstone.gemfire.cache.Region;
/**
* A worker thread that places a given number of 8K chunks of data
* (long arrays) into a GemFire {@linkplain Region
* region}.
*
* @author GemStone Systems, Inc.
*
* @since 3.2
*/
public class Worker implements Runnable {
/** The id of this worker thread (prepended to the entry keys) */
private int id;
/** The region on which this worker operates */
private Region region;
/** Number of arrays (8K chunks) that are placed into the region */
private long arrayCount;
/** Statistics about the work done by this worker */
private WorkerStats stats;
/** Do we validate the contents of the Region? */
private boolean validate;
/////////////////////// Constructors ///////////////////////
/**
* Creates a new Worker with the given id that places a
* given number of 8K chunks of data in the given region.
*
* @param validate
* Do we validate the contents of the region instead of
* populating it?
*/
Worker(int id, Region region, long arrayCount, boolean validate) {
this.id = id;
this.region = region;
this.arrayCount = arrayCount;
this.validate = validate;
this.stats =
new WorkerStats(id, CacheFactory.getAnyInstance().getDistributedSystem());
}
/**
* Places a 8K arrays of long into a GemFire cache
* region and updates statistics accordingly.
*/
public void run() {
for (long i = 1; i <= this.arrayCount; i++) {
if (i % 1000 == 0) {
System.out.println("Worker " + this.id + " has " +
(validate ? "validated" : "put") +
" " + i + " 8K chunks");
}
String key = this.id + "-" + i;
long[] array;
try {
if (!validate) {
array = new long[1024];
array[0] = i;
region.put(key, array);
stats.incBytesAdded(8 * array.length);
} else {
String error = null;
Object value = region.get(key);
if (value == null) {
error = "Null value for key \"" + key + "\"";
} else if (!(value instanceof long[])) {
error = "Value for \"" + key + "\" is a " +
value.getClass().getName();
} else {
array = (long[]) value;
if (array[0] != i) {
error = "Expected " + i + ", got " + array[0];
}
}
if (error != null) {
throw new IllegalStateException(error);
}
}
} catch (Exception ex) {
CacheFactory.getAnyInstance().getLogger().severe("While putting into the region", ex);
}
}
}
}