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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.apex.plugins.context.metrics;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import org.onap.policy.apex.context.ContextAlbum;
import org.onap.policy.apex.context.Distributor;
import org.onap.policy.apex.context.impl.distribution.DistributorFactory;
import org.onap.policy.apex.context.test.factory.TestContextAlbumFactory;
import org.onap.policy.apex.core.infrastructure.threading.ThreadUtilities;
import org.onap.policy.apex.model.basicmodel.concepts.ApexException;
import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
import org.onap.policy.apex.model.basicmodel.service.AbstractParameters;
import org.onap.policy.apex.model.basicmodel.service.ParameterService;
import org.onap.policy.apex.model.contextmodel.concepts.AxContextModel;
import org.onap.policy.apex.model.utilities.Assertions;
import org.slf4j.ext.XLogger;
import org.slf4j.ext.XLoggerFactory;
import com.google.gson.Gson;
import com.google.gson.JsonSyntaxException;
/**
* The Class ConcurrentContextMetricsJVM rins in its own JVM to test concurrent context updates and
* lockings across JVMs.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
public final class ConcurrentContextMetricsJVM {
// Logger for this class
private static final XLogger LOGGER = XLoggerFactory.getXLogger(ConcurrentContextMetricsJVM.class);
private static final int NUM_ARGS = 6;
private static final int ARG_JVM_NO = 1;
private static final int ARG_THREAD_COUNT = 2;
private static final int ARG_ITERATIONS = 3;
private static final int ARG_ARRAY_SIZE = 4;
private static final int ARG_LOCK_TYPE = 5;
private static final int WAIT_10_MS = 10;
/**
* The Constructor for this class.
*
* @param testType the test type
* @param jvmNo the jvm no
* @param threadCount the thread count
* @param threadLoops the thread loops
* @param longArraySize the long array size
* @param lockType the lock type
* @throws ApexException the apex exception
* @throws IOException the IO exception
*/
private ConcurrentContextMetricsJVM(final String testType, final int jvmNo, final int threadCount,
final int threadLoops, final int longArraySize, final int lockType) throws ApexException, IOException {
LOGGER.debug("starting JVMs and threads . . .");
final BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
// Set up the distributor for this JVM
final AxArtifactKey distributorKey = new AxArtifactKey("ApexDistributor", "0.0.1");
final Distributor contextDistributor = new DistributorFactory().getDistributor(distributorKey);
final AxArtifactKey[] usedArtifactStackArray = {new AxArtifactKey("testC-top_" + jvmNo, "0.0.1"),
new AxArtifactKey("testC-next_" + jvmNo, "0.0.1"), new AxArtifactKey("testC-bot_" + jvmNo, "0.0.1")};
final AxContextModel testAxContextModel = TestContextAlbumFactory.createLongContextModel();
contextDistributor.registerModel(testAxContextModel);
final ContextAlbum testContextAlbum =
contextDistributor.createContextAlbum(new AxArtifactKey("LongSameTypeContextAlbum", "0.0.1"));
Assertions.argumentNotNull(testContextAlbum, "testContextAlbum may not be null");
testContextAlbum.setUserArtifactStack(usedArtifactStackArray);
final Thread[] threadArray = new Thread[threadCount];
for (int t = 0; t < threadCount; t++) {
threadArray[t] =
new Thread(new ConcurrentContextMetricsThread(jvmNo, t, threadLoops, longArraySize, lockType));
threadArray[t].setName(testType + ":ConcurrentContextMetricsThread_" + jvmNo + "_" + t);
threadArray[t].start();
LOGGER.debug("started thread " + threadArray[t].getName());
}
System.out.println("ReadyToGo");
while (true) {
final String goLine = bufferedReader.readLine();
if (!goLine.trim().equals("OffYouGo")) {
throw new IOException("Expected OffYouGo");
}
break;
}
boolean allFinished;
do {
allFinished = true;
for (int t = 0; t < threadCount; t++) {
if (threadArray[t].isAlive()) {
allFinished = false;
ThreadUtilities.sleep(WAIT_10_MS);
break;
}
}
} while (!allFinished);
System.out.println("AllFinished");
while (true) {
final String goLine = bufferedReader.readLine();
if (!goLine.trim().equals("FinishItOut")) {
throw new IOException("Expected FinishItOut");
}
break;
}
LOGGER.debug("threads finished");
contextDistributor.clear();
}
/**
* The main method.
*
* @param args the args
* @throws JsonSyntaxException the json syntax exception
* @throws ClassNotFoundException the class not found exception
*/
@SuppressWarnings("unchecked")
public static void main(final String[] args) throws JsonSyntaxException, ClassNotFoundException {
if (args.length < NUM_ARGS || (args.length % 2 != 0)) {
LOGGER.error("invalid arguments: " + Arrays.toString(args));
LOGGER.error(
"usage: ConcurrentContextMetricsJVM testLabel jvmNo threadCount threadLoops longArraySize lockType [parameterKey parameterJson].... ");
return;
}
int jvmNo = -1;
int threadCount = -1;
int threadLoops = -1;
int longArraySize = -1;
int lockType = -1;
try {
jvmNo = Integer.parseInt(args[ARG_JVM_NO]);
} catch (final Exception e) {
LOGGER.error("invalid argument jvmNo", e);
return;
}
try {
threadCount = Integer.parseInt(args[ARG_THREAD_COUNT]);
} catch (final Exception e) {
LOGGER.error("invalid argument threadCount", e);
return;
}
try {
threadLoops = Integer.parseInt(args[ARG_ITERATIONS]);
} catch (final Exception e) {
LOGGER.error("invalid argument threadLoops", e);
return;
}
try {
longArraySize = Integer.parseInt(args[ARG_ARRAY_SIZE]);
} catch (final Exception e) {
LOGGER.error("invalid argument longArraySize", e);
return;
}
try {
lockType = Integer.parseInt(args[ARG_LOCK_TYPE]);
} catch (final Exception e) {
LOGGER.error("invalid argument lockType", e);
return;
}
for (int p = NUM_ARGS; p < args.length - 1; p += 2) {
@SuppressWarnings("rawtypes")
final Class parametersClass = Class.forName(args[p]);
final AbstractParameters parameters =
(AbstractParameters) new Gson().fromJson(args[p + 1], parametersClass);
ParameterService.registerParameters(parametersClass, parameters);
}
try {
new ConcurrentContextMetricsJVM(args[0], jvmNo, threadCount, threadLoops, longArraySize, lockType);
} catch (final Exception e) {
LOGGER.error("error running test in JVM", e);
return;
}
}
}
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