org.apache.activemq.artemis.core.server.balancing.targets.ActiveMQTarget Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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,
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* See the License for the specific language governing permissions and
* limitations under the License.
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package org.apache.activemq.artemis.core.server.balancing.targets;
import org.apache.activemq.artemis.api.core.ActiveMQException;
import org.apache.activemq.artemis.api.core.TransportConfiguration;
import org.apache.activemq.artemis.api.core.client.ActiveMQClient;
import org.apache.activemq.artemis.api.core.client.ClientSessionFactory;
import org.apache.activemq.artemis.api.core.client.ServerLocator;
import org.apache.activemq.artemis.api.core.management.ActiveMQManagementProxy;
import org.apache.activemq.artemis.api.core.management.ResourceNames;
import org.apache.activemq.artemis.core.remoting.FailureListener;
import org.apache.activemq.artemis.core.server.balancing.BrokerBalancer;
import org.apache.activemq.artemis.spi.core.protocol.RemotingConnection;
import org.apache.activemq.artemis.utils.UUIDGenerator;
import org.jboss.logging.Logger;
public class ActiveMQTarget extends AbstractTarget implements FailureListener {
private static final Logger logger = Logger.getLogger(ActiveMQTarget.class);
private boolean connected = false;
private final ServerLocator serverLocator;
private ClientSessionFactory sessionFactory;
private RemotingConnection remotingConnection;
private ActiveMQManagementProxy managementProxy;
@Override
public boolean isLocal() {
return false;
}
@Override
public boolean isConnected() {
return connected;
}
public ActiveMQTarget(TransportConfiguration connector, String nodeID) {
super(connector, nodeID);
serverLocator = ActiveMQClient.createServerLocatorWithoutHA(connector);
}
@Override
public void connect() throws Exception {
sessionFactory = serverLocator.createSessionFactory();
remotingConnection = sessionFactory.getConnection();
remotingConnection.addFailureListener(this);
managementProxy = new ActiveMQManagementProxy(sessionFactory.createSession(getUsername(), getPassword(),
false, true, true, false, ActiveMQClient.DEFAULT_ACK_BATCH_SIZE,
BrokerBalancer.CLIENT_ID_PREFIX + UUIDGenerator.getInstance().generateStringUUID()).start());
connected = true;
fireConnectedEvent();
}
@Override
public void disconnect() throws Exception {
if (connected) {
connected = false;
managementProxy.close();
remotingConnection.removeFailureListener(this);
sessionFactory.close();
fireDisconnectedEvent();
}
}
@Override
public boolean checkReadiness() {
try {
if (getNodeID() == null) {
setNodeID(getAttribute(ResourceNames.BROKER, "NodeID", String.class, 3000));
}
return getAttribute(ResourceNames.BROKER, "Active", Boolean.class, 3000);
} catch (Exception e) {
logger.warn("Error on check readiness", e);
}
return false;
}
@Override
public T getAttribute(String resourceName, String attributeName, Class attributeClass, int timeout) throws Exception {
return managementProxy.getAttribute(resourceName, attributeName, attributeClass, timeout);
}
@Override
public T invokeOperation(String resourceName, String operationName, Object[] operationParams, Class operationClass, int timeout) throws Exception {
return managementProxy.invokeOperation(resourceName, operationName, operationParams, operationClass, timeout);
}
@Override
public void connectionFailed(ActiveMQException exception, boolean failedOver) {
connectionFailed(exception, failedOver, null);
}
@Override
public void connectionFailed(ActiveMQException exception, boolean failedOver, String scaleDownTargetNodeID) {
try {
if (connected) {
disconnect();
}
} catch (Exception e) {
logger.debug("Exception on disconnecting: ", e);
}
}
}