| /* |
| * |
| * 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.qpid.jms; |
| |
| import org.apache.qpid.client.BrokerDetails; |
| import org.apache.qpid.client.AMQConnectionURL; |
| import org.apache.qpid.jms.failover.FailoverExchangeMethod; |
| import org.apache.qpid.jms.failover.FailoverMethod; |
| import org.apache.qpid.jms.failover.FailoverRoundRobinServers; |
| import org.apache.qpid.jms.failover.FailoverSingleServer; |
| import org.apache.qpid.jms.failover.NoFailover; |
| import org.apache.qpid.test.utils.QpidTestCase; |
| |
| import javax.jms.ConnectionConsumer; |
| import javax.jms.ConnectionMetaData; |
| import javax.jms.Destination; |
| import javax.jms.ExceptionListener; |
| import javax.jms.JMSException; |
| import javax.jms.ServerSessionPool; |
| import javax.jms.Topic; |
| |
| /** |
| * Tests the ability of FailoverPolicy to instantiate the correct FailoverMethod. |
| * |
| * This test presently does <i>not</i> test {@link FailoverPolicy#FailoverPolicy(FailoverMethod) or |
| * {@link FailoverPolicy#addMethod(FailoverMethod)} as it appears that this functionality |
| * is no longer in use. |
| * |
| */ |
| public class FailoverPolicyTest extends QpidTestCase |
| { |
| private FailoverPolicy _failoverPolicy = null; // class under test |
| private String _url; |
| private Connection _connection = null; |
| private ConnectionURL _connectionUrl = null; |
| |
| /** |
| * Tests single server method is selected for a brokerlist with one broker when |
| * the failover option is not specified. |
| */ |
| public void testBrokerListWithOneBrokerDefaultsToSingleServerPolicy() throws Exception |
| { |
| _url = "amqp://user:pass@clientid/test?brokerlist='tcp://localhost:5672'"; |
| _connectionUrl = new AMQConnectionURL(_url); |
| _connection = createStubConnection(); |
| |
| _failoverPolicy = new FailoverPolicy(_connectionUrl, _connection); |
| |
| assertTrue("Unexpected failover method", _failoverPolicy.getCurrentMethod() instanceof FailoverSingleServer); |
| } |
| |
| /** |
| * Tests round robin method is selected for a brokerlist with two brokers when |
| * the failover option is not specified. |
| */ |
| public void testBrokerListWithTwoBrokersDefaultsToRoundRobinPolicy() throws Exception |
| { |
| _url = "amqp://user:pass@clientid/test?brokerlist='tcp://localhost:5672;tcp://localhost:5673'"; |
| _connectionUrl = new AMQConnectionURL(_url); |
| _connection = createStubConnection(); |
| |
| _failoverPolicy = new FailoverPolicy(_connectionUrl, _connection); |
| |
| assertTrue("Unexpected failover method", _failoverPolicy.getCurrentMethod() instanceof FailoverRoundRobinServers); |
| } |
| |
| /** |
| * Tests single server method is selected for a brokerlist with one broker when |
| * the failover option passed as 'singlebroker'. |
| */ |
| public void testExplictFailoverOptionSingleBroker() throws Exception |
| { |
| _url = "amqp://user:pass@clientid/test?brokerlist='tcp://localhost:5672'&failover='singlebroker'"; |
| _connectionUrl = new AMQConnectionURL(_url); |
| _connection = createStubConnection(); |
| |
| _failoverPolicy = new FailoverPolicy(_connectionUrl, _connection); |
| |
| assertTrue("Unexpected failover method", _failoverPolicy.getCurrentMethod() instanceof FailoverSingleServer); |
| } |
| |
| /** |
| * Tests round robin method is selected for a brokerlist with two brokers when |
| * the failover option passed as 'roundrobin'. |
| */ |
| public void testExplictFailoverOptionRoundrobin() throws Exception |
| { |
| _url = "amqp://user:pass@clientid/test?brokerlist='tcp://localhost:5672;tcp://localhost:5673'&failover='roundrobin'"; |
| _connectionUrl = new AMQConnectionURL(_url); |
| _connection = createStubConnection(); |
| |
| _failoverPolicy = new FailoverPolicy(_connectionUrl, _connection); |
| |
| assertTrue("Unexpected failover method", _failoverPolicy.getCurrentMethod() instanceof FailoverRoundRobinServers); |
| } |
| |
| /** |
| * Tests no failover method is selected for a brokerlist with one broker when |
| * the failover option passed as 'nofailover'. |
| */ |
| public void testExplictFailoverOptionNofailover() throws Exception |
| { |
| _url = "amqp://user:pass@clientid/test?brokerlist='tcp://localhost:5672'&failover='nofailover'"; |
| _connectionUrl = new AMQConnectionURL(_url); |
| _connection = createStubConnection(); |
| |
| _failoverPolicy = new FailoverPolicy(_connectionUrl, _connection); |
| |
| assertTrue("Unexpected failover method", _failoverPolicy.getCurrentMethod() instanceof NoFailover); |
| } |
| |
| /** |
| * Tests failover exchange method is selected for a brokerlist with one broker when |
| * the failover option passed as 'failover_exchange'. |
| */ |
| public void testExplictFailoverOptionFailoverExchange() throws Exception |
| { |
| _url = "amqp://user:pass@clientid/test?brokerlist='tcp://localhost:5672'&failover='failover_exchange'"; |
| _connectionUrl = new AMQConnectionURL(_url); |
| _connection = createStubConnection(); |
| |
| _failoverPolicy = new FailoverPolicy(_connectionUrl, _connection); |
| |
| assertTrue("Unexpected failover method", _failoverPolicy.getCurrentMethod() instanceof FailoverExchangeMethod); |
| } |
| |
| /** |
| * Tests that a custom method can be selected for a brokerlist with one brokers when |
| * the failover option passed as a qualified class-name. |
| */ |
| public void testExplictFailoverOptionDynamicallyLoadedFailoverMethod() throws Exception |
| { |
| _url = "amqp://user:pass@clientid/test?brokerlist='tcp://localhost:5672'&failover='org.apache.qpid.jms.FailoverPolicyTest$MyFailoverMethod'"; |
| _connectionUrl = new AMQConnectionURL(_url); |
| _connection = createStubConnection(); |
| |
| _failoverPolicy = new FailoverPolicy(_connectionUrl, _connection); |
| |
| assertTrue("Unexpected failover method", _failoverPolicy.getCurrentMethod() instanceof MyFailoverMethod); |
| } |
| |
| /** |
| * Tests that an unknown method caused an exception. |
| */ |
| public void testUnknownFailoverMethod() throws Exception |
| { |
| _url = "amqp://user:pass@clientid/test?brokerlist='tcp://localhost:5672'&failover='unknown'"; |
| _connectionUrl = new AMQConnectionURL(_url); |
| _connection = createStubConnection(); |
| |
| try |
| { |
| new FailoverPolicy(_connectionUrl, _connection); |
| fail("Exception not thrown"); |
| } |
| catch(IllegalArgumentException iae) |
| { |
| // PASS |
| } |
| } |
| |
| private Connection createStubConnection() |
| { |
| return new Connection() |
| { |
| |
| @Override |
| public Session createSession(boolean transacted, |
| int acknowledgeMode, int prefetch) throws JMSException |
| { |
| return null; |
| } |
| |
| @Override |
| public Session createSession(boolean transacted, |
| int acknowledgeMode, int prefetchHigh, int prefetchLow) |
| throws JMSException |
| { |
| return null; |
| } |
| |
| @Override |
| public ConnectionListener getConnectionListener() |
| { |
| return null; |
| } |
| |
| @Override |
| public long getMaximumChannelCount() throws JMSException |
| { |
| return 0; |
| } |
| |
| @Override |
| public void setConnectionListener(ConnectionListener listener) |
| { |
| } |
| |
| @Override |
| public void close() throws JMSException |
| { |
| } |
| |
| @Override |
| public ConnectionConsumer createConnectionConsumer( |
| Destination arg0, String arg1, ServerSessionPool arg2, |
| int arg3) throws JMSException |
| { |
| return null; |
| } |
| |
| @Override |
| public ConnectionConsumer createDurableConnectionConsumer( |
| Topic arg0, String arg1, String arg2, |
| ServerSessionPool arg3, int arg4) throws JMSException |
| { |
| return null; |
| } |
| |
| @Override |
| public Session createSession(boolean arg0, int arg1) |
| throws JMSException |
| { |
| return null; |
| } |
| |
| @Override |
| public String getClientID() throws JMSException |
| { |
| return null; |
| } |
| |
| @Override |
| public ExceptionListener getExceptionListener() throws JMSException |
| { |
| return null; |
| } |
| |
| @Override |
| public ConnectionMetaData getMetaData() throws JMSException |
| { |
| return null; |
| } |
| |
| @Override |
| public void setClientID(String arg0) throws JMSException |
| { |
| } |
| |
| @Override |
| public void setExceptionListener(ExceptionListener arg0) |
| throws JMSException |
| { |
| } |
| |
| @Override |
| public void start() throws JMSException |
| { |
| } |
| |
| @Override |
| public void stop() throws JMSException |
| { |
| } |
| }; |
| } |
| |
| // Class used to test the ability of FailoverPolicy to load an implementation. |
| static class MyFailoverMethod implements FailoverMethod |
| { |
| public MyFailoverMethod(ConnectionURL connectionDetails) |
| { |
| } |
| |
| @Override |
| public void attainedConnection() |
| { |
| } |
| |
| @Override |
| public boolean failoverAllowed() |
| { |
| return false; |
| } |
| |
| @Override |
| public BrokerDetails getCurrentBrokerDetails() |
| { |
| return null; |
| } |
| |
| @Override |
| public BrokerDetails getNextBrokerDetails() |
| { |
| return null; |
| } |
| |
| @Override |
| public String methodName() |
| { |
| return null; |
| } |
| |
| @Override |
| public void reset() |
| { |
| } |
| |
| @Override |
| public void setBroker(BrokerDetails broker) |
| { |
| } |
| |
| @Override |
| public void setRetries(int maxRetries) |
| { |
| } |
| } |
| |
| } |