/*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.http.impl.conn;
import java.io.IOException;
import java.lang.ref.WeakReference;
import java.net.InetAddress;
import java.net.Socket;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
import junit.framework.Test;
import junit.framework.TestSuite;
import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.HttpVersion;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.ClientConnectionOperator;
import org.apache.http.conn.ClientConnectionRequest;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.conn.ConnectionPoolTimeoutException;
import org.apache.http.conn.ManagedClientConnection;
import org.apache.http.conn.OperatedClientConnection;
import org.apache.http.conn.params.ConnPerRouteBean;
import org.apache.http.conn.params.ConnManagerParams;
import org.apache.http.conn.routing.HttpRoute;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.scheme.SocketFactory;
import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
import org.apache.http.localserver.ServerTestBase;
import org.apache.http.message.BasicHttpRequest;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.ExecutionContext;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.EntityUtils;
/**
* Tests for <code>ThreadSafeClientConnManager</code> that do require
* a server to communicate with.
*/
public class TestTSCCMWithServer extends ServerTestBase {
// Server-based tests not ported from 3.x TestHttpConnectionManager
//
// testWriteRequestReleaseConnection
// This tests auto-release in case of an I/O error while writing.
// It's a test of the execution framework, not of the manager.
// testConnectMethodFailureRelease
// This tests method.fakeResponse() and auto-release. It's a
// test of a 3.x specific hack and the execution framework.
// testResponseAutoRelease
// Auto-release is not part of the connection manager anymore.
// testMaxConnectionsPerServer
// Connection limits are already tested without a server.
public TestTSCCMWithServer(String testName) {
super(testName);
}
public static void main(String args[]) {
String[] testCaseName = { TestTSCCMWithServer.class.getName() };
junit.textui.TestRunner.main(testCaseName);
}
public static Test suite() {
return new TestSuite(TestTSCCMWithServer.class);
}
/**
* Helper to instantiate a <code>ThreadSafeClientConnManager</code>.
*
* @param params the parameters, or
* <code>null</code> to use defaults
* @param schreg the scheme registry, or
* <code>null</code> to use defaults
*
* @return a connection manager to test
*/
public ThreadSafeClientConnManager createTSCCM(HttpParams params,
SchemeRegistry schreg) {
if (params == null)
params = defaultParams;
if (schreg == null)
schreg = supportedSchemes;
return new ThreadSafeClientConnManager(params, schreg);
}
/**
* Tests executing several requests in parallel.
*/
public void testParallelRequests() throws Exception {
// 3.x: TestHttpConnectionManager.testGetFromMultipleThreads
final int COUNT = 8; // adjust to execute more requests
HttpParams mgrpar = defaultParams.copy();
ConnManagerParams.setMaxTotalConnections
(mgrpar, COUNT/2);
ConnManagerParams.setMaxConnectionsPerRoute
(mgrpar, new ConnPerRouteBean(COUNT/2));
ThreadSafeClientConnManager mgr = createTSCCM(mgrpar, null);
final HttpHost target = getServerHttp();
final HttpRoute route = new HttpRoute(target, null, false);
final int rsplen = 8;
final String uri = "/random/" + rsplen;
ExecReqThread[] threads = new ExecReqThread [COUNT];
for (int i=0; i<COUNT; i++) {
HttpRequest request = new BasicHttpRequest
("GET", uri, HttpVersion.HTTP_1_1);
ExecReqThread.RequestSpec ertrs = new ExecReqThread.RequestSpec();
ertrs.executor = httpExecutor;
ertrs.processor = httpProcessor;
ertrs.context = new BasicHttpContext(null);
ertrs.params = defaultParams;
ertrs.context.setAttribute
(ExecutionContext.HTTP_TARGET_HOST, target);
ertrs.context.setAttribute
(ExecutionContext.HTTP_REQUEST, request);
threads[i] = new ExecReqThread(mgr, route, 5000L, ertrs);
}
for (int i=0; i<threads.length; i++) {
threads[i].start();
}
for (int i=0; i<threads.length; i++) {
threads[i].join(10000);
assertNull("exception in thread " + i,
threads[i].getException());
assertNotNull("no response in thread " + i,
threads[i].getResponse());
assertEquals("wrong status code in thread " + i, 200,
threads[i].getResponse()
.getStatusLine().getStatusCode());
assertNotNull("no response data in thread " + i,
threads[i].getResponseData());
assertEquals("wrong length of data in thread" + i, rsplen,
threads[i].getResponseData().length);
}
mgr.shutdown();
}
private static ManagedClientConnection getConnection(
final ClientConnectionManager mgr,
final HttpRoute route,
long timeout,
TimeUnit unit) throws ConnectionPoolTimeoutException, InterruptedException {
ClientConnectionRequest connRequest = mgr.requestConnection(route, null);
return connRequest.getConnection(timeout, unit);
}
private static ManagedClientConnection getConnection(
final ClientConnectionManager mgr,
final HttpRoute route) throws ConnectionPoolTimeoutException, InterruptedException {
ClientConnectionRequest connRequest = mgr.requestConnection(route, null);
return connRequest.getConnection(0, null);
}
/**
* Tests releasing and re-using a connection after a response is read.
*/
public void testReleaseConnection() throws Exception {
HttpParams mgrpar = defaultParams.copy();
ConnManagerParams.setMaxTotalConnections(mgrpar, 1);
ThreadSafeClientConnManager mgr = createTSCCM(mgrpar, null);
final HttpHost target = getServerHttp();
final HttpRoute route = new HttpRoute(target, null, false);
final int rsplen = 8;
final String uri = "/random/" + rsplen;
HttpRequest request =
new BasicHttpRequest("GET", uri, HttpVersion.HTTP_1_1);
ManagedClientConnection conn = getConnection(mgr, route);
conn.open(route, httpContext, defaultParams);
// a new context is created for each testcase, no need to reset
HttpResponse response = Helper.execute(
request, conn, target,
httpExecutor, httpProcessor, defaultParams, httpContext);
assertEquals("wrong status in first response",
HttpStatus.SC_OK,
response.getStatusLine().getStatusCode());
byte[] data = EntityUtils.toByteArray(response.getEntity());
assertEquals("wrong length of first response entity",
rsplen, data.length);
// ignore data, but it must be read
// check that there is no auto-release by default
try {
// this should fail quickly, connection has not been released
getConnection(mgr, route, 10L, TimeUnit.MILLISECONDS);
fail("ConnectionPoolTimeoutException should have been thrown");
} catch (ConnectionPoolTimeoutException e) {
// expected
}
// release connection without marking for re-use
// expect the next connection obtained to be closed
mgr.releaseConnection(conn, -1, null);
conn = getConnection(mgr, route);
assertFalse("connection should have been closed", conn.isOpen());
// repeat the communication, no need to prepare the request again
conn.open(route, httpContext, defaultParams);
httpContext.setAttribute(ExecutionContext.HTTP_CONNECTION, conn);
response = httpExecutor.execute(request, conn, httpContext);
httpExecutor.postProcess(response, httpProcessor, httpContext);
assertEquals("wrong status in second response",
HttpStatus.SC_OK,
response.getStatusLine().getStatusCode());
data = EntityUtils.toByteArray(response.getEntity());
assertEquals("wrong length of second response entity",
rsplen, data.length);
// ignore data, but it must be read
// release connection after marking it for re-use
// expect the next connection obtained to be open
conn.markReusable();
mgr.releaseConnection(conn, -1, null);
conn = getConnection(mgr, route);
assertTrue("connection should have been open", conn.isOpen());
// repeat the communication, no need to prepare the request again
httpContext.setAttribute(ExecutionContext.HTTP_CONNECTION, conn);
response = httpExecutor.execute(request, conn, httpContext);
httpExecutor.postProcess(response, httpProcessor, httpContext);
assertEquals("wrong status in third response",
HttpStatus.SC_OK,
response.getStatusLine().getStatusCode());
data = EntityUtils.toByteArray(response.getEntity());
assertEquals("wrong length of third response entity",
rsplen, data.length);
// ignore data, but it must be read
mgr.releaseConnection(conn, -1, null);
mgr.shutdown();
}
/**
* Tests releasing with time limits.
*/
public void testReleaseConnectionWithTimeLimits() throws Exception {
HttpParams mgrpar = defaultParams.copy();
ConnManagerParams.setMaxTotalConnections(mgrpar, 1);
ThreadSafeClientConnManager mgr = createTSCCM(mgrpar, null);
final HttpHost target = getServerHttp();
final HttpRoute route = new HttpRoute(target, null, false);
final int rsplen = 8;
final String uri = "/random/" + rsplen;
HttpRequest request =
new BasicHttpRequest("GET", uri, HttpVersion.HTTP_1_1);
ManagedClientConnection conn = getConnection(mgr, route);
conn.open(route, httpContext, defaultParams);
// a new context is created for each testcase, no need to reset
HttpResponse response = Helper.execute(
request, conn, target,
httpExecutor, httpProcessor, defaultParams, httpContext);
assertEquals("wrong status in first response",
HttpStatus.SC_OK,
response.getStatusLine().getStatusCode());
byte[] data = EntityUtils.toByteArray(response.getEntity());
assertEquals("wrong length of first response entity",
rsplen, data.length);
// ignore data, but it must be read
// check that there is no auto-release by default
try {
// this should fail quickly, connection has not been released
getConnection(mgr, route, 10L, TimeUnit.MILLISECONDS);
fail("ConnectionPoolTimeoutException should have been thrown");
} catch (ConnectionPoolTimeoutException e) {
// expected
}
// release connection without marking for re-use
// expect the next connection obtained to be closed
mgr.releaseConnection(conn, 100, TimeUnit.MILLISECONDS);
conn = getConnection(mgr, route);
assertFalse("connection should have been closed", conn.isOpen());
// repeat the communication, no need to prepare the request again
conn.open(route, httpContext, defaultParams);
httpContext.setAttribute(ExecutionContext.HTTP_CONNECTION, conn);
response = httpExecutor.execute(request, conn, httpContext);
httpExecutor.postProcess(response, httpProcessor, httpContext);
assertEquals("wrong status in second response",
HttpStatus.SC_OK,
response.getStatusLine().getStatusCode());
data = EntityUtils.toByteArray(response.getEntity());
assertEquals("wrong length of second response entity",
rsplen, data.length);
// ignore data, but it must be read
// release connection after marking it for re-use
// expect the next connection obtained to be open
conn.markReusable();
mgr.releaseConnection(conn, 100, TimeUnit.MILLISECONDS);
conn = getConnection(mgr, route);
assertTrue("connection should have been open", conn.isOpen());
// repeat the communication, no need to prepare the request again
httpContext.setAttribute(ExecutionContext.HTTP_CONNECTION, conn);
response = httpExecutor.execute(request, conn, httpContext);
httpExecutor.postProcess(response, httpProcessor, httpContext);
assertEquals("wrong status in third response",
HttpStatus.SC_OK,
response.getStatusLine().getStatusCode());
data = EntityUtils.toByteArray(response.getEntity());
assertEquals("wrong length of third response entity",
rsplen, data.length);
// ignore data, but it must be read
conn.markReusable();
mgr.releaseConnection(conn, 100, TimeUnit.MILLISECONDS);
Thread.sleep(150);
conn = getConnection(mgr, route);
assertTrue("connection should have been closed", !conn.isOpen());
// repeat the communication, no need to prepare the request again
conn.open(route, httpContext, defaultParams);
httpContext.setAttribute(ExecutionContext.HTTP_CONNECTION, conn);
response = httpExecutor.execute(request, conn, httpContext);
httpExecutor.postProcess(response, httpProcessor, httpContext);
assertEquals("wrong status in third response",
HttpStatus.SC_OK,
response.getStatusLine().getStatusCode());
data = EntityUtils.toByteArray(response.getEntity());
assertEquals("wrong length of fourth response entity",
rsplen, data.length);
// ignore data, but it must be read
mgr.shutdown();
}
public void testCloseExpiredConnections() throws Exception {
HttpParams mgrpar = defaultParams.copy();
ConnManagerParams.setMaxTotalConnections(mgrpar, 1);
ThreadSafeClientConnManager mgr = createTSCCM(mgrpar, null);
final HttpHost target = getServerHttp();
final HttpRoute route = new HttpRoute(target, null, false);
ManagedClientConnection conn = getConnection(mgr, route);
conn.open(route, httpContext, defaultParams);
assertEquals("connectionsInPool", 1, mgr.getConnectionsInPool());
assertEquals("connectionsInPool(host)", 1, mgr.getConnectionsInPool(route));
mgr.releaseConnection(conn, 100, TimeUnit.MILLISECONDS);
// Released, still active.
assertEquals("connectionsInPool", 1, mgr.getConnectionsInPool());
assertEquals("connectionsInPool(host)", 1, mgr.getConnectionsInPool(route));
mgr.closeExpiredConnections();
// Time has not expired yet.
assertEquals("connectionsInPool", 1, mgr.getConnectionsInPool());
assertEquals("connectionsInPool(host)", 1, mgr.getConnectionsInPool(route));
Thread.sleep(150);
mgr.closeExpiredConnections();
// Time expired now, connections are destroyed.
assertEquals("connectionsInPool", 0, mgr.getConnectionsInPool());
assertEquals("connectionsInPool(host)", 0, mgr.getConnectionsInPool(route));
mgr.shutdown();
}
/**
* Tests releasing connection from #abort method called from the
* main execution thread while there is no blocking I/O operation.
*/
public void testReleaseConnectionOnAbort() throws Exception {
HttpParams mgrpar = defaultParams.copy();
ConnManagerParams.setMaxTotalConnections(mgrpar, 1);
ThreadSafeClientConnManager mgr = createTSCCM(mgrpar, null);
final HttpHost target = getServerHttp();
final HttpRoute route = new HttpRoute(target, null, false);
final int rsplen = 8;
final String uri = "/random/" + rsplen;
HttpRequest request =
new BasicHttpRequest("GET", uri, HttpVersion.HTTP_1_1);
ManagedClientConnection conn = getConnection(mgr, route);
conn.open(route, httpContext, defaultParams);
// a new context is created for each testcase, no need to reset
HttpResponse response = Helper.execute(
request, conn, target,
httpExecutor, httpProcessor, defaultParams, httpContext);
assertEquals("wrong status in first response",
HttpStatus.SC_OK,
response.getStatusLine().getStatusCode());
// check that there are no connections available
try {
// this should fail quickly, connection has not been released
getConnection(mgr, route, 100L, TimeUnit.MILLISECONDS);
fail("ConnectionPoolTimeoutException should have been thrown");
} catch (ConnectionPoolTimeoutException e) {
// expected
}
// abort the connection
assertTrue(conn instanceof AbstractClientConnAdapter);
((AbstractClientConnAdapter) conn).abortConnection();
// the connection is expected to be released back to the manager
conn = getConnection(mgr, route, 5L, TimeUnit.SECONDS);
assertFalse("connection should have been closed", conn.isOpen());
mgr.releaseConnection(conn, -1, null);
mgr.shutdown();
}
/**
* Tests GC of an unreferenced connection manager.
*/
public void testConnectionManagerGC() throws Exception {
// 3.x: TestHttpConnectionManager.testDroppedThread
ThreadSafeClientConnManager mgr = createTSCCM(null, null);
final HttpHost target = getServerHttp();
final HttpRoute route = new HttpRoute(target, null, false);
final int rsplen = 8;
final String uri = "/random/" + rsplen;
HttpRequest request =
new BasicHttpRequest("GET", uri, HttpVersion.HTTP_1_1);
ManagedClientConnection conn = getConnection(mgr, route);
conn.open(route, httpContext, defaultParams);
// a new context is created for each testcase, no need to reset
HttpResponse response = Helper.execute(request, conn, target,
httpExecutor, httpProcessor, defaultParams, httpContext);
EntityUtils.toByteArray(response.getEntity());
// release connection after marking it for re-use
conn.markReusable();
mgr.releaseConnection(conn, -1, null);
// We now have a manager with an open connection in its pool.
// We drop all potential hard reference to the manager and check
// whether it is GCed. Internal references might prevent that
// if set up incorrectly.
// Note that we still keep references to the connection wrapper
// we got from the manager, directly as well as in the request
// and in the context. The manager will be GCed only if the
// connection wrapper is truly detached.
WeakReference<ThreadSafeClientConnManager> wref =
new WeakReference<ThreadSafeClientConnManager>(mgr);
mgr = null;
// Java does not guarantee that this will trigger the GC, but
// it does in the test environment. GC is asynchronous, so we
// need to give the garbage collector some time afterwards.
System.gc();
Thread.sleep(1000);
assertNull("TSCCM not garbage collected", wref.get());
}
public void testAbortDuringConnecting() throws Exception {
HttpParams mgrpar = defaultParams.copy();
ConnManagerParams.setMaxTotalConnections(mgrpar, 1);
final CountDownLatch connectLatch = new CountDownLatch(1);
final StallingSocketFactory stallingSocketFactory = new StallingSocketFactory(connectLatch, WaitPolicy.BEFORE_CONNECT, PlainSocketFactory.getSocketFactory());
Scheme scheme = new Scheme("http", stallingSocketFactory, 80);
SchemeRegistry registry = new SchemeRegistry();
registry.register(scheme);
ThreadSafeClientConnManager mgr = createTSCCM(mgrpar, registry);
final HttpHost target = getServerHttp();
final HttpRoute route = new HttpRoute(target, null, false);
final ManagedClientConnection conn = getConnection(mgr, route);
assertTrue(conn instanceof AbstractClientConnAdapter);
final AtomicReference<Throwable> throwRef = new AtomicReference<Throwable>();
Thread abortingThread = new Thread(new Runnable() {
public void run() {
try {
stallingSocketFactory.waitForState();
conn.abortConnection();
connectLatch.countDown();
} catch (Throwable e) {
throwRef.set(e);
}
}
});
abortingThread.start();
try {
conn.open(route, httpContext, defaultParams);
fail("expected SocketException");
} catch(SocketException expected) {}
abortingThread.join(5000);
if(throwRef.get() != null)
throw new RuntimeException(throwRef.get());
assertFalse(conn.isOpen());
assertEquals(0, localServer.getAcceptedConnectionCount());
// check that there are no connections available
try {
// this should fail quickly, connection has not been released
getConnection(mgr, route, 100L, TimeUnit.MILLISECONDS);
fail("ConnectionPoolTimeoutException should have been thrown");
} catch (ConnectionPoolTimeoutException e) {
// expected
}
// return it back to the manager
((AbstractClientConnAdapter) conn).releaseConnection();
// the connection is expected to be released back to the manager
ManagedClientConnection conn2 = getConnection(mgr, route, 5L, TimeUnit.SECONDS);
assertFalse("connection should have been closed", conn2.isOpen());
mgr.releaseConnection(conn2, -1, null);
mgr.shutdown();
}
public void testAbortBeforeSocketCreate() throws Exception {
HttpParams mgrpar = defaultParams.copy();
ConnManagerParams.setMaxTotalConnections(mgrpar, 1);
final CountDownLatch connectLatch = new CountDownLatch(1);
final StallingSocketFactory stallingSocketFactory = new StallingSocketFactory(connectLatch, WaitPolicy.BEFORE_CREATE, PlainSocketFactory.getSocketFactory());
Scheme scheme = new Scheme("http", stallingSocketFactory, 80);
SchemeRegistry registry = new SchemeRegistry();
registry.register(scheme);
ThreadSafeClientConnManager mgr = createTSCCM(mgrpar, registry);
final HttpHost target = getServerHttp();
final HttpRoute route = new HttpRoute(target, null, false);
final ManagedClientConnection conn = getConnection(mgr, route);
assertTrue(conn instanceof AbstractClientConnAdapter);
final AtomicReference<Throwable> throwRef = new AtomicReference<Throwable>();
Thread abortingThread = new Thread(new Runnable() {
public void run() {
try {
stallingSocketFactory.waitForState();
conn.abortConnection();
connectLatch.countDown();
} catch (Throwable e) {
throwRef.set(e);
}
}
});
abortingThread.start();
try {
conn.open(route, httpContext, defaultParams);
fail("expected exception");
} catch(IOException expected) {
assertEquals("Connection already shutdown", expected.getMessage());
}
abortingThread.join(5000);
if(throwRef.get() != null)
throw new RuntimeException(throwRef.get());
assertFalse(conn.isOpen());
assertEquals(0, localServer.getAcceptedConnectionCount());
// check that there are no connections available
try {
// this should fail quickly, connection has not been released
getConnection(mgr, route, 100L, TimeUnit.MILLISECONDS);
fail("ConnectionPoolTimeoutException should have been thrown");
} catch (ConnectionPoolTimeoutException e) {
// expected
}
// return it back to the manager
((AbstractClientConnAdapter) conn).releaseConnection();
// the connection is expected to be released back to the manager
ManagedClientConnection conn2 = getConnection(mgr, route, 5L, TimeUnit.SECONDS);
assertFalse("connection should have been closed", conn2.isOpen());
mgr.releaseConnection(conn2, -1, null);
mgr.shutdown();
}
public void testAbortAfterSocketConnect() throws Exception {
HttpParams mgrpar = defaultParams.copy();
ConnManagerParams.setMaxTotalConnections(mgrpar, 1);
final CountDownLatch connectLatch = new CountDownLatch(1);
final StallingSocketFactory stallingSocketFactory = new StallingSocketFactory(connectLatch, WaitPolicy.AFTER_CONNECT, PlainSocketFactory.getSocketFactory());
Scheme scheme = new Scheme("http", stallingSocketFactory, 80);
SchemeRegistry registry = new SchemeRegistry();
registry.register(scheme);
ThreadSafeClientConnManager mgr = createTSCCM(mgrpar, registry);
final HttpHost target = getServerHttp();
final HttpRoute route = new HttpRoute(target, null, false);
final ManagedClientConnection conn = getConnection(mgr, route);
assertTrue(conn instanceof AbstractClientConnAdapter);
final AtomicReference<Throwable> throwRef = new AtomicReference<Throwable>();
Thread abortingThread = new Thread(new Runnable() {
public void run() {
try {
stallingSocketFactory.waitForState();
conn.abortConnection();
connectLatch.countDown();
} catch (Throwable e) {
throwRef.set(e);
}
}
});
abortingThread.start();
try {
conn.open(route, httpContext, defaultParams);
fail("expected SocketException");
} catch(SocketException expected) {}
abortingThread.join(5000);
if(throwRef.get() != null)
throw new RuntimeException(throwRef.get());
assertFalse(conn.isOpen());
// Give the server a bit of time to accept the connection, but
// ensure that it can accept it.
for(int i = 0; i < 10; i++) {
if(localServer.getAcceptedConnectionCount() == 1)
break;
Thread.sleep(100);
}
assertEquals(1, localServer.getAcceptedConnectionCount());
// check that there are no connections available
try {
// this should fail quickly, connection has not been released
getConnection(mgr, route, 100L, TimeUnit.MILLISECONDS);
fail("ConnectionPoolTimeoutException should have been thrown");
} catch (ConnectionPoolTimeoutException e) {
// expected
}
// return it back to the manager
((AbstractClientConnAdapter) conn).releaseConnection();
// the connection is expected to be released back to the manager
ManagedClientConnection conn2 = getConnection(mgr, route, 5L, TimeUnit.SECONDS);
assertFalse("connection should have been closed", conn2.isOpen());
mgr.releaseConnection(conn2, -1, null);
mgr.shutdown();
}
public void testAbortAfterOperatorOpen() throws Exception {
HttpParams mgrpar = defaultParams.copy();
ConnManagerParams.setMaxTotalConnections(mgrpar, 1);
final CountDownLatch connectLatch = new CountDownLatch(1);
final AtomicReference<StallingOperator> operatorRef = new AtomicReference<StallingOperator>();
ThreadSafeClientConnManager mgr = new ThreadSafeClientConnManager(mgrpar, supportedSchemes) {
@Override
protected ClientConnectionOperator createConnectionOperator(
SchemeRegistry schreg) {
operatorRef.set(new StallingOperator(connectLatch, WaitPolicy.AFTER_OPEN, super.createConnectionOperator(schreg)));
return operatorRef.get();
}
};
assertNotNull(operatorRef.get());
final HttpHost target = getServerHttp();
final HttpRoute route = new HttpRoute(target, null, false);
final ManagedClientConnection conn = getConnection(mgr, route);
assertTrue(conn instanceof AbstractClientConnAdapter);
final AtomicReference<Throwable> throwRef = new AtomicReference<Throwable>();
Thread abortingThread = new Thread(new Runnable() {
public void run() {
try {
operatorRef.get().waitForState();
conn.abortConnection();
connectLatch.countDown();
} catch (Throwable e) {
throwRef.set(e);
}
}
});
abortingThread.start();
try {
conn.open(route, httpContext, defaultParams);
fail("expected exception");
} catch(IOException iox) {
assertEquals("Request aborted", iox.getMessage());
}
abortingThread.join(5000);
if(throwRef.get() != null)
throw new RuntimeException(throwRef.get());
assertFalse(conn.isOpen());
// Give the server a bit of time to accept the connection, but
// ensure that it can accept it.
for(int i = 0; i < 10; i++) {
if(localServer.getAcceptedConnectionCount() == 1)
break;
Thread.sleep(100);
}
assertEquals(1, localServer.getAcceptedConnectionCount());
// check that there are no connections available
try {
// this should fail quickly, connection has not been released
getConnection(mgr, route, 100L, TimeUnit.MILLISECONDS);
fail("ConnectionPoolTimeoutException should have been thrown");
} catch (ConnectionPoolTimeoutException e) {
// expected
}
// return it back to the manager
((AbstractClientConnAdapter) conn).releaseConnection();
// the connection is expected to be released back to the manager
ManagedClientConnection conn2 = getConnection(mgr, route, 5L, TimeUnit.SECONDS);
assertFalse("connection should have been closed", conn2.isOpen());
mgr.releaseConnection(conn2, -1, null);
mgr.shutdown();
}
private static class LatchSupport {
private final CountDownLatch continueLatch;
private final CountDownLatch waitLatch = new CountDownLatch(1);
protected final WaitPolicy waitPolicy;
LatchSupport(CountDownLatch continueLatch, WaitPolicy waitPolicy) {
this.continueLatch = continueLatch;
this.waitPolicy = waitPolicy;
}
void waitForState() throws InterruptedException {
if(!waitLatch.await(1, TimeUnit.SECONDS))
throw new RuntimeException("waited too long");
}
void latch() {
waitLatch.countDown();
try {
if (!continueLatch.await(1, TimeUnit.SECONDS))
throw new RuntimeException("waited too long!");
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
}
private static class StallingOperator extends LatchSupport implements ClientConnectionOperator {
private final ClientConnectionOperator delegate;
public StallingOperator(CountDownLatch continueLatch,
WaitPolicy waitPolicy, ClientConnectionOperator delegate) {
super(continueLatch, waitPolicy);
this.delegate = delegate;
}
public OperatedClientConnection createConnection() {
return delegate.createConnection();
}
public void openConnection(OperatedClientConnection conn,
HttpHost target, InetAddress local, HttpContext context,
HttpParams params) throws IOException {
delegate.openConnection(conn, target, local, context, params);
if(waitPolicy == WaitPolicy.AFTER_OPEN)
latch();
}
public void updateSecureConnection(OperatedClientConnection conn,
HttpHost target, HttpContext context, HttpParams params)
throws IOException {
delegate.updateSecureConnection(conn, target, context, params);
}
}
private static class StallingSocketFactory extends LatchSupport implements SocketFactory {
private final SocketFactory delegate;
public StallingSocketFactory(CountDownLatch continueLatch,
WaitPolicy waitPolicy, SocketFactory delegate) {
super(continueLatch, waitPolicy);
this.delegate = delegate;
}
public Socket connectSocket(Socket sock, String host, int port,
InetAddress localAddress, int localPort, HttpParams params)
throws IOException, UnknownHostException,
ConnectTimeoutException {
if(waitPolicy == WaitPolicy.BEFORE_CONNECT)
latch();
Socket socket = delegate.connectSocket(sock, host, port, localAddress,
localPort, params);
if(waitPolicy == WaitPolicy.AFTER_CONNECT)
latch();
return socket;
}
public Socket createSocket() throws IOException {
if(waitPolicy == WaitPolicy.BEFORE_CREATE)
latch();
return delegate.createSocket();
}
public boolean isSecure(Socket sock) throws IllegalArgumentException {
return delegate.isSecure(sock);
}
}
private enum WaitPolicy { BEFORE_CREATE, BEFORE_CONNECT, AFTER_CONNECT, AFTER_OPEN }
} // class TestTSCCMWithServer