com.hazelcast.instance.OutOfMemoryHandlerHelper Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2015, 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.instance;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.util.EmptyStatement;
/**
* Helper class for OutOfMemoryHandlers to close sockets, stop threads, release allocated resources
* of an HazelcastInstanceImpl.
*
* @see com.hazelcast.core.OutOfMemoryHandler
* @see com.hazelcast.instance.DefaultOutOfMemoryHandler
*/
public final class OutOfMemoryHandlerHelper {
private OutOfMemoryHandlerHelper() {
}
public static void tryCloseConnections(HazelcastInstance hazelcastInstance) {
if (hazelcastInstance == null) {
return;
}
HazelcastInstanceImpl factory = (HazelcastInstanceImpl) hazelcastInstance;
closeSockets(factory);
}
private static void closeSockets(HazelcastInstanceImpl factory) {
if (factory.node.connectionManager != null) {
try {
factory.node.connectionManager.shutdown();
} catch (Throwable ignored) {
EmptyStatement.ignore(ignored);
}
}
}
public static void tryShutdown(HazelcastInstance hazelcastInstance) {
if (hazelcastInstance == null) {
return;
}
HazelcastInstanceImpl factory = (HazelcastInstanceImpl) hazelcastInstance;
closeSockets(factory);
try {
factory.node.shutdown(true);
} catch (Throwable ignored) {
EmptyStatement.ignore(ignored);
}
}
public static void inactivate(HazelcastInstance hazelcastInstance) {
if (hazelcastInstance == null) {
return;
}
final HazelcastInstanceImpl factory = (HazelcastInstanceImpl) hazelcastInstance;
factory.node.inactivate();
}
public static void tryStopThreads(HazelcastInstance hazelcastInstance) {
if (hazelcastInstance == null) {
return;
}
HazelcastInstanceImpl factory = (HazelcastInstanceImpl) hazelcastInstance;
try {
factory.node.getHazelcastThreadGroup().destroy();
} catch (Throwable ignored) {
EmptyStatement.ignore(ignored);
}
}
}