org.apache.activemq.transport.discovery.masterslave.MasterSlaveDiscoveryAgent 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,
* 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 org.apache.activemq.transport.discovery.masterslave;
import java.net.URI;
import org.apache.activemq.transport.discovery.simple.SimpleDiscoveryAgent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A static DiscoveryAgent that supports connecting to a Master / Slave tuple
* of brokers.
*/
public class MasterSlaveDiscoveryAgent extends SimpleDiscoveryAgent {
private final static Logger LOG = LoggerFactory.getLogger(MasterSlaveDiscoveryAgent.class);
private String[] msServices = new String[]{};
@Override
public String[] getServices() {
return msServices;
}
@Override
public void setServices(String services) {
this.msServices = services.split(",");
configureServices();
}
@Override
public void setServices(String services[]) {
this.msServices = services;
configureServices();
}
@Override
public void setServices(URI services[]) {
this.msServices = new String[services.length];
for (int i = 0; i < services.length; i++) {
this.msServices[i] = services[i].toString();
}
configureServices();
}
protected void configureServices() {
if ((msServices == null) || (msServices.length < 2)) {
LOG.error("masterSlave requires at least 2 URIs");
msServices = new String[]{};
throw new IllegalArgumentException("Expecting at least 2 arguments");
}
StringBuffer buf = new StringBuffer();
buf.append("failover:(");
for (int i = 0; i < (msServices.length - 1); i++) {
buf.append(msServices[i]);
buf.append(',');
}
buf.append(msServices[msServices.length - 1]);
buf.append(")?randomize=false&maxReconnectAttempts=0");
super.setServices(new String[]{buf.toString()});
}
}