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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.thrift.async;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicBoolean;
import junit.framework.TestCase;
import org.apache.thrift.TException;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.server.ServerTestBase;
import org.apache.thrift.server.THsHaServer;
import org.apache.thrift.transport.TNonblockingServerSocket;
import org.apache.thrift.transport.TNonblockingSocket;
import thrift.test.CompactProtoTestStruct;
import thrift.test.Srv;
import thrift.test.Srv.Iface;
import thrift.test.Srv.AsyncClient.Janky_call;
import thrift.test.Srv.AsyncClient.onewayMethod_call;
import thrift.test.Srv.AsyncClient.primitiveMethod_call;
import thrift.test.Srv.AsyncClient.voidMethod_call;
public class TestTAsyncClientManager extends TestCase {
private static void fail(Throwable throwable) {
StringWriter sink = new StringWriter();
throwable.printStackTrace(new PrintWriter(sink, true));
fail("unexpected error " + sink.toString());
}
private static abstract class FailureLessCallback<T extends TAsyncMethodCall> implements AsyncMethodCallback<T> {
@Override
public void onError(Throwable throwable) {
fail(throwable);
}
}
public class SrvHandler implements Iface {
@Override
public int Janky(int arg) throws TException {
assertEquals(1, arg);
return 3;
}
@Override
public void methodWithDefaultArgs(int something) throws TException {
}
// Using this method for timeout testing
@Override
public int primitiveMethod() throws TException {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
return 0;
}
@Override
public CompactProtoTestStruct structMethod() throws TException {
return null;
}
@Override
public void voidMethod() throws TException {
}
@Override
public void onewayMethod() throws TException {
}
}
public class JankyRunnable implements Runnable {
private TAsyncClientManager acm_;
private int numCalls_;
private int numSuccesses_ = 0;
private Srv.AsyncClient client_;
private TNonblockingSocket clientSocket_;
public JankyRunnable(TAsyncClientManager acm, int numCalls) throws Exception {
this.acm_ = acm;
this.numCalls_ = numCalls;
this.clientSocket_ = new TNonblockingSocket(ServerTestBase.HOST, ServerTestBase.PORT);
this.client_ = new Srv.AsyncClient(new TBinaryProtocol.Factory(), acm_, clientSocket_);
this.client_.setTimeout(20000);
}
public int getNumSuccesses() {
return numSuccesses_;
}
public void run() {
for (int i = 0; i < numCalls_ && !client_.hasError(); i++) {
final int iteration = i;
try {
// connect an async client
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean jankyReturned = new AtomicBoolean(false);
client_.Janky(1, new AsyncMethodCallback<Srv.AsyncClient.Janky_call>() {
@Override
public void onComplete(Janky_call response) {
try {
assertEquals(3, response.getResult());
jankyReturned.set(true);
latch.countDown();
} catch (TException e) {
latch.countDown();
fail(e);
}
}
@Override
public void onError(Throwable throwable) {
try {
StringWriter sink = new StringWriter();
throwable.printStackTrace(new PrintWriter(sink, true));
fail("unexpected onError on iteration " + iteration + ": " + sink.toString());
} finally {
latch.countDown();
}
}
});
boolean calledBack = latch.await(30, TimeUnit.SECONDS);
assertTrue("wasn't called back in time on iteration " + iteration, calledBack);
assertTrue("onComplete not called on iteration " + iteration, jankyReturned.get());
this.numSuccesses_++;
} catch (Exception e) {
fail(e);
}
}
}
}
public void standardCallTest(Srv.AsyncClient client) throws Exception {
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean jankyReturned = new AtomicBoolean(false);
client.Janky(1, new FailureLessCallback<Srv.AsyncClient.Janky_call>() {
@Override
public void onComplete(Janky_call response) {
try {
assertEquals(3, response.getResult());
jankyReturned.set(true);
} catch (TException e) {
fail(e);
} finally {
latch.countDown();
}
}
});
latch.await(100, TimeUnit.SECONDS);
assertTrue(jankyReturned.get());
}
public void testIt() throws Exception {
// put up a server
final THsHaServer s = new THsHaServer(new Srv.Processor(new SrvHandler()),
new TNonblockingServerSocket(ServerTestBase.PORT));
new Thread(new Runnable() {
@Override
public void run() {
s.serve();
}
}).start();
Thread.sleep(1000);
// set up async client manager
TAsyncClientManager acm = new TAsyncClientManager();
// connect an async client
TNonblockingSocket clientSock = new TNonblockingSocket(
ServerTestBase.HOST, ServerTestBase.PORT);
Srv.AsyncClient client = new Srv.AsyncClient(new TBinaryProtocol.Factory(), acm, clientSock);
// make a standard method call
standardCallTest(client);
// make a standard method call that succeeds within timeout
assertFalse(s.isStopped());
client.setTimeout(5000);
standardCallTest(client);
// make a void method call
assertFalse(s.isStopped());
final CountDownLatch voidLatch = new CountDownLatch(1);
final AtomicBoolean voidMethodReturned = new AtomicBoolean(false);
client.voidMethod(new FailureLessCallback<Srv.AsyncClient.voidMethod_call>() {
@Override
public void onComplete(voidMethod_call response) {
try {
response.getResult();
voidMethodReturned.set(true);
} catch (TException e) {
fail(e);
} finally {
voidLatch.countDown();
}
}
});
voidLatch.await(1, TimeUnit.SECONDS);
assertTrue(voidMethodReturned.get());
// make a oneway method call
assertFalse(s.isStopped());
final CountDownLatch onewayLatch = new CountDownLatch(1);
final AtomicBoolean onewayReturned = new AtomicBoolean(false);
client.onewayMethod(new FailureLessCallback<onewayMethod_call>() {
@Override
public void onComplete(onewayMethod_call response) {
try {
response.getResult();
onewayReturned.set(true);
} catch (TException e) {
fail(e);
} finally {
onewayLatch.countDown();
}
}
});
onewayLatch.await(1, TimeUnit.SECONDS);
assertTrue(onewayReturned.get());
// make another standard method call
assertFalse(s.isStopped());
final CountDownLatch voidAfterOnewayLatch = new CountDownLatch(1);
final AtomicBoolean voidAfterOnewayReturned = new AtomicBoolean(false);
client.voidMethod(new FailureLessCallback<voidMethod_call>() {
@Override
public void onComplete(voidMethod_call response) {
try {
response.getResult();
voidAfterOnewayReturned.set(true);
} catch (TException e) {
fail(e);
} finally {
voidAfterOnewayLatch.countDown();
}
}
});
voidAfterOnewayLatch.await(1, TimeUnit.SECONDS);
assertTrue(voidAfterOnewayReturned.get());
// make multiple calls with deserialization in the selector thread (repro Eric's issue)
assertFalse(s.isStopped());
int numThreads = 50;
int numCallsPerThread = 100;
List<JankyRunnable> runnables = new ArrayList<JankyRunnable>();
List<Thread> threads = new ArrayList<Thread>();
for (int i = 0; i < numThreads; i++) {
JankyRunnable runnable = new JankyRunnable(acm, numCallsPerThread);
Thread thread = new Thread(runnable);
thread.start();
threads.add(thread);
runnables.add(runnable);
}
for (Thread thread : threads) {
thread.join();
}
int numSuccesses = 0;
for (JankyRunnable runnable : runnables) {
numSuccesses += runnable.getNumSuccesses();
}
assertEquals(numThreads * numCallsPerThread, numSuccesses);
// check that timeouts work
assertFalse(s.isStopped());
assertTrue(clientSock.isOpen());
final CountDownLatch timeoutLatch = new CountDownLatch(1);
client.setTimeout(100);
client.primitiveMethod(new AsyncMethodCallback<primitiveMethod_call>() {
@Override
public void onError(Throwable throwable) {
try {
if (!(throwable instanceof TimeoutException)) {
StringWriter sink = new StringWriter();
throwable.printStackTrace(new PrintWriter(sink, true));
fail("expected TimeoutException but got " + sink.toString());
}
} finally {
timeoutLatch.countDown();
}
}
@Override
public void onComplete(primitiveMethod_call response) {
try {
fail("should not have finished timed out call.");
} finally {
timeoutLatch.countDown();
}
}
});
timeoutLatch.await(2, TimeUnit.SECONDS);
assertTrue(client.hasError());
assertTrue(client.getError() instanceof TimeoutException);
// error closes socket and make sure isOpen reflects that
assertFalse(clientSock.isOpen());
}
}