/**
* Licensed to the Austrian Association for Software Tool Integration (AASTI)
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. The AASTI 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.openengsb.core.util;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.fail;
import java.util.concurrent.Callable;
import java.util.concurrent.FutureTask;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.junit.Before;
import org.junit.Test;
import org.openengsb.core.api.OsgiServiceNotAvailableException;
import org.openengsb.core.api.OsgiUtilsService;
import org.openengsb.core.test.AbstractOsgiMockServiceTest;
import org.openengsb.core.test.NullDomain;
import org.openengsb.core.test.NullDomainImpl;
public class OsgiServiceUtilsTest extends AbstractOsgiMockServiceTest {
private class BlockingNullDomain extends NullDomainImpl {
@Override
public Object nullMethod(Object o, String b) {
try {
sync.acquire();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
return super.nullMethod(o, b);
}
}
private OsgiUtilsService utils;
private Semaphore sync = new Semaphore(0);
@Before
public void setUp() throws Exception {
utils = new DefaultOsgiUtilsService(bundleContext);
}
@Test(expected = OsgiServiceNotAvailableException.class)
public void testGetProxyForNonExistingservice_shouldThrowNotAvailableException() throws Exception {
NullDomain osgiServiceProxy = utils.getOsgiServiceProxy(NullDomain.class, 1);
osgiServiceProxy.getAliveState();
}
@Test
public void testHandleParallelProxyCalls_shouldGetAnswersParallely() throws Exception {
registerServiceViaId(new BlockingNullDomain(), "foo", NullDomain.class);
final NullDomain service = utils.getOsgiServiceProxy(NullDomain.class);
Callable<Object> normalCall = new Callable<Object>() {
@Override
public Object call() throws Exception {
return service.nullMethod(42);
}
};
Callable<Object> blockingCall = new Callable<Object>() {
@Override
public Object call() throws Exception {
return service.nullMethod(42, "foo");
}
};
FutureTask<Object> normalFuture = new FutureTask<Object>(normalCall);
new Thread(normalFuture).start();
FutureTask<Object> blockingFuture = new FutureTask<Object>(blockingCall);
new Thread(blockingFuture).start();
Object normalResult = normalFuture.get();
// verify(serviceMock).nullMethod(any());
/* getAnswer-call is finished */
assertThat((Integer) normalResult, is(42));
try {
blockingFuture.get(200, TimeUnit.MILLISECONDS);
fail("blocking method returned premature");
} catch (TimeoutException e) {
// ignore, this is expceted
}
sync.release();
Object blockingResult = blockingFuture.get();
assertThat((Integer) blockingResult, is(42));
}
}