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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* ================================================================================
* Modifications Copyright (C) 2019 Ericsson
* =============================================================================
* 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.
*
* ============LICENSE_END=========================================================
*/
package org.onap.appc.executionqueue.helper;
import org.onap.appc.configuration.Configuration;
import org.onap.appc.configuration.ConfigurationFactory;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;
public class Util {
private int default_queue_size = 10;
private int default_threadpool_size = 10;
private String queue_size_key = "appc.dispatcher.executionqueue.backlog.size";
private String threadpool_size_key = "appc.dispatcher.executionqueue.threadpool.size";
private EELFLogger logger = EELFManager.getInstance().getLogger(Util.class);
private Configuration configuration;
/**
* Initialization.
* <p>Used by blueprint.
*/
public void init() {
configuration = ConfigurationFactory.getConfiguration();
}
public int getExecutionQueueSize() {
String sizeStr = configuration.getProperty(queue_size_key, String.valueOf(default_queue_size));
int size = default_queue_size;
try {
size = Integer.parseInt(sizeStr);
} catch (NumberFormatException e) {
logger.error("Error parsing dispatcher execution queue backlog size", e);
}
return size;
}
public int getThreadPoolSize() {
String sizeStr = configuration.getProperty(threadpool_size_key, String.valueOf(default_threadpool_size));
int size = default_threadpool_size;
try {
size = Integer.parseInt(sizeStr);
} catch (NumberFormatException e) {
logger.error("Error parsing dispatcher execution queue threadpool size", e);
}
return size;
}
public ThreadFactory getThreadFactory(final boolean isDaemon, final String threadNamePrefix) {
return new ThreadFactory() {
private final String THREAD_NAME_PATTERN = "%s-%d";
private final ThreadFactory factory = Executors.defaultThreadFactory();
private final AtomicInteger counter = new AtomicInteger();
public Thread newThread(Runnable r) {
Thread t = factory.newThread(r);
t.setDaemon(isDaemon);
if (threadNamePrefix != null && !threadNamePrefix.isEmpty()) {
final String threadName = String.format(THREAD_NAME_PATTERN, threadNamePrefix, counter.incrementAndGet());
t.setName(threadName);
}
return t;
}
};
}
}
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