/**
* 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.cxf.systest.clustering;
import java.net.ConnectException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;
import org.apache.cxf.Bus;
import org.apache.cxf.BusFactory;
import org.apache.cxf.bus.spring.SpringBusFactory;
import org.apache.cxf.clustering.AbstractStaticFailoverStrategy;
import org.apache.cxf.clustering.FailoverTargetSelector;
import org.apache.cxf.clustering.RandomStrategy;
import org.apache.cxf.clustering.SequentialStrategy;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.endpoint.ConduitSelector;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.frontend.ClientProxy;
import org.apache.cxf.greeter_control.ClusteredGreeterService;
import org.apache.cxf.greeter_control.Control;
import org.apache.cxf.greeter_control.ControlService;
import org.apache.cxf.greeter_control.Greeter;
import org.apache.cxf.testutil.common.AbstractBusClientServerTestBase;
import org.apache.cxf.ws.addressing.MAPAggregator;
import org.apache.cxf.ws.addressing.soap.MAPCodec;
import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
/**
* Tests failover within a static cluster.
*/
public class FailoverAddressOverrideTest extends AbstractBusClientServerTestBase {
protected static final String REPLICA_A =
"http://localhost:9051/SoapContext/ReplicatedPortA";
protected static final String REPLICA_B =
"http://localhost:9052/SoapContext/ReplicatedPortB";
protected static final String REPLICA_C =
"http://localhost:9053/SoapContext/ReplicatedPortC";
protected static final String REPLICA_D =
"http://localhost:9054/SoapContext/ReplicatedPortD";
private static final Logger LOG =
LogUtils.getLogger(FailoverAddressOverrideTest.class);
private static final String FAILOVER_CONFIG =
"org/apache/cxf/systest/clustering/failover_address_override.xml";
protected Bus bus;
protected Greeter greeter;
protected List<String> targets;
private Control control;
private MAPAggregator mapAggregator;
private MAPCodec mapCodec;
@BeforeClass
public static void startServers() throws Exception {
assertTrue("server did not launch correctly",
launchServer(Server.class));
}
protected String getConfig() {
return FAILOVER_CONFIG;
}
@Before
public void setUp() {
targets = new ArrayList<String>();
SpringBusFactory bf = new SpringBusFactory();
bus = bf.createBus(getConfig());
BusFactory.setDefaultBus(bus);
}
@After
public void tearDown() {
if (null != control) {
for (String address : targets) {
assertTrue("Failed to stop greeter",
control.stopGreeter(address));
}
}
targets = null;
if (bus != null) {
bus.shutdown(true);
}
}
@Test
public void testOverriddenSequentialStrategy() throws Exception {
startTarget(REPLICA_C);
setupGreeterA();
verifyStrategy(greeter, SequentialStrategy.class, 3);
String response = greeter.greetMe("fred");
assertNotNull("expected non-null response", response);
assertTrue("response from unexpected target: " + response,
response.endsWith(REPLICA_C));
verifyCurrentEndpoint(REPLICA_C);
stopTarget(REPLICA_C);
}
@Test
public void testOverriddenRandomStrategy() throws Exception {
startTarget(REPLICA_B);
setupGreeterC();
verifyStrategy(greeter, RandomStrategy.class, 3);
String response = greeter.greetMe("fred");
assertNotNull("expected non-null response", response);
assertTrue("response from unexpected target: " + response,
response.endsWith(REPLICA_B));
verifyCurrentEndpoint(REPLICA_B);
stopTarget(REPLICA_B);
}
@Test
public void testUnreachableAddresses() throws Exception {
startTarget(REPLICA_A);
setupGreeterB();
verifyStrategy(greeter, SequentialStrategy.class, 2);
try {
greeter.greetMe("fred");
fail("expected exception");
} catch (Exception e) {
Throwable cause = e;
while (cause.getCause() != null) {
cause = cause.getCause();
}
assertTrue("should revert to original exception when no failover: "
+ cause,
cause instanceof ConnectException);
verifyCurrentEndpoint(REPLICA_B.replaceFirst("9052", "15555"));
}
stopTarget(REPLICA_A);
}
protected void startTarget(String address) {
ControlService cs = new ControlService();
control = cs.getControlPort();
LOG.info("starting replicated target: " + address);
System.out.println("starting replicated target: " + address);
assertTrue("Failed to start greeter", control.startGreeter(address));
targets.add(address);
}
protected void stopTarget(String address) {
if (control != null
&& targets.contains(address)) {
LOG.info("starting replicated target: " + address);
assertTrue("Failed to start greeter", control.stopGreeter(address));
targets.remove(address);
}
}
protected void verifyCurrentEndpoint(String replica) {
assertEquals("unexpected current endpoint",
replica,
getCurrentEndpoint(greeter));
}
protected String getCurrentEndpoint(Object proxy) {
return ClientProxy.getClient(proxy).getEndpoint().getEndpointInfo().getAddress();
}
protected void setupGreeterA() {
greeter = new ClusteredGreeterService().getReplicatedPortA();
verifyConduitSelector(greeter);
}
protected void setupGreeterB() {
greeter = new ClusteredGreeterService().getReplicatedPortB();
verifyConduitSelector(greeter);
}
protected void setupGreeterC() {
greeter = new ClusteredGreeterService().getReplicatedPortC();
verifyConduitSelector(greeter);
}
protected void verifyConduitSelector(Greeter g) {
assertTrue("unexpected conduit slector",
ClientProxy.getClient(g).getConduitSelector()
instanceof FailoverTargetSelector);
}
protected void verifyStrategy(Object proxy, Class clz, int count) {
ConduitSelector conduitSelector =
ClientProxy.getClient(proxy).getConduitSelector();
if (conduitSelector instanceof FailoverTargetSelector) {
AbstractStaticFailoverStrategy strategy =
(AbstractStaticFailoverStrategy)
((FailoverTargetSelector)conduitSelector).getStrategy();
assertTrue("unexpected strategy", clz.isInstance(strategy));
List<String> alternates = strategy.getAlternateAddresses(null);
assertNotNull("expected alternate addresses", alternates);
assertEquals("unexpected alternate addresses", count, alternates.size());
} else {
fail("unexpected conduit selector: " + conduitSelector);
}
}
protected void enableWSAForCurrentEndpoint() {
Endpoint provider = ClientProxy.getClient(greeter).getEndpoint();
mapAggregator = new MAPAggregator();
mapCodec = new MAPCodec();
provider.getInInterceptors().add(mapAggregator);
provider.getInInterceptors().add(mapCodec);
provider.getOutInterceptors().add(mapAggregator);
provider.getOutInterceptors().add(mapCodec);
provider.getInFaultInterceptors().add(mapAggregator);
provider.getInFaultInterceptors().add(mapCodec);
provider.getOutFaultInterceptors().add(mapAggregator);
provider.getOutFaultInterceptors().add(mapCodec);
}
protected boolean isWSAEnabledForCurrentEndpoint() {
Endpoint provider = ClientProxy.getClient(greeter).getEndpoint();
boolean enabledIn =
provider.getInInterceptors().contains(mapAggregator)
&& provider.getInInterceptors().contains(mapCodec)
&& provider.getInFaultInterceptors().contains(mapAggregator)
&& provider.getInFaultInterceptors().contains(mapCodec);
boolean enabledOut =
provider.getOutInterceptors().contains(mapAggregator)
&& provider.getOutInterceptors().contains(mapCodec)
&& provider.getOutFaultInterceptors().contains(mapAggregator)
&& provider.getOutFaultInterceptors().contains(mapCodec);
return enabledIn && enabledOut;
}
}