/*
* 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.ringbuffer.impl;
import com.hazelcast.config.Config;
import com.hazelcast.config.InMemoryFormat;
import com.hazelcast.config.RingbufferConfig;
import com.hazelcast.config.RingbufferStoreConfig;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.RingbufferStore;
import com.hazelcast.ringbuffer.Ringbuffer;
import com.hazelcast.test.AssertTask;
import com.hazelcast.test.HazelcastTestSupport;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.io.File;
import java.util.Random;
import static com.hazelcast.nio.IOUtil.deleteQuietly;
import static com.hazelcast.test.TestStringUtils.fileAsText;
public class StoreLatencyPlugin_RingbufferIntegrationTest extends HazelcastTestSupport {
private HazelcastInstance hz;
private Ringbuffer<Object> rb;
@Before
public void setup() throws Exception {
Config config = new Config()
.setProperty("hazelcast.diagnostics.enabled", "true")
.setProperty("hazelcast.diagnostics.storeLatency.period.seconds", "1");
RingbufferConfig rbConfig = addRingbufferConfig(config);
hz = createHazelcastInstance(config);
rb = hz.getRingbuffer(rbConfig.getName());
}
@After
public void after() {
File file = getNodeEngineImpl(hz).getDiagnostics().currentFile();
deleteQuietly(file);
}
@Test
public void test() throws Exception {
for (long k = 0; k <= rb.tailSequence(); k++) {
rb.readOne(k);
}
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
File file = getNodeEngineImpl(hz).getDiagnostics().currentFile();
String content = fileAsText(file);
assertContains(content, "ringworm");
}
});
}
private static RingbufferConfig addRingbufferConfig(Config config) {
RingbufferStore store = new RingbufferStore() {
private final Random random = new Random();
@Override
public void store(long sequence, Object data) {
}
@Override
public void storeAll(long firstItemSequence, Object[] items) {
}
@Override
public Object load(long sequence) {
randomSleep();
return sequence;
}
@Override
public long getLargestSequence() {
randomSleep();
return 100;
}
private void randomSleep() {
long delay = 1 + random.nextInt(100);
try {
Thread.sleep(delay);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
};
return config.getRingbufferConfig("ringworm")
.setInMemoryFormat(InMemoryFormat.OBJECT)
.setRingbufferStoreConfig(new RingbufferStoreConfig().setStoreImplementation(store));
}
}