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* to you under the Apache License, Version 2.0 (the
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* Unless required by applicable law or agreed to in writing,
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* KIND, either express or implied. See the License for the
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*
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package org.apache.http.conn;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.concurrent.TimeUnit;
import org.apache.http.HttpEntity;
import org.apache.http.HttpException;
import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.MalformedChunkCodingException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.routing.HttpRoute;
import org.apache.http.entity.BasicHttpEntity;
import org.apache.http.impl.DefaultHttpServerConnection;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.PoolingClientConnectionManager;
import org.apache.http.localserver.ServerTestBase;
import org.apache.http.pool.PoolStats;
import org.apache.http.protocol.ExecutionContext;
import org.apache.http.protocol.HttpContext;
import org.apache.http.protocol.HttpRequestHandler;
import org.apache.http.util.EntityUtils;
import org.junit.Assert;
import org.junit.Test;
public class TestConnectionAutoRelease extends ServerTestBase {
@Test
public void testReleaseOnEntityConsumeContent() throws Exception {
PoolingClientConnectionManager mgr = new PoolingClientConnectionManager();
mgr.setDefaultMaxPerRoute(1);
mgr.setMaxTotal(1);
// Zero connections in the pool
PoolStats stats = mgr.getTotalStats();
Assert.assertEquals(0, stats.getAvailable());
DefaultHttpClient client = new DefaultHttpClient(mgr);
// Get some random data
HttpGet httpget = new HttpGet("/random/20000");
HttpHost target = getServerHttp();
HttpResponse response = client.execute(target, httpget);
ClientConnectionRequest connreq = mgr.requestConnection(new HttpRoute(target), null);
try {
connreq.getConnection(250, TimeUnit.MILLISECONDS);
Assert.fail("ConnectionPoolTimeoutException should have been thrown");
} catch (ConnectionPoolTimeoutException expected) {
}
HttpEntity e = response.getEntity();
Assert.assertNotNull(e);
EntityUtils.consume(e);
// Expect one connection in the pool
stats = mgr.getTotalStats();
Assert.assertEquals(1, stats.getAvailable());
// Make sure one connection is available
connreq = mgr.requestConnection(new HttpRoute(target), null);
ManagedClientConnection conn = connreq.getConnection(250, TimeUnit.MILLISECONDS);
mgr.releaseConnection(conn, -1, null);
mgr.shutdown();
}
@Test
public void testReleaseOnEntityWriteTo() throws Exception {
PoolingClientConnectionManager mgr = new PoolingClientConnectionManager();
mgr.setDefaultMaxPerRoute(1);
mgr.setMaxTotal(1);
// Zero connections in the pool
PoolStats stats = mgr.getTotalStats();
Assert.assertEquals(0, stats.getAvailable());
DefaultHttpClient client = new DefaultHttpClient(mgr);
// Get some random data
HttpGet httpget = new HttpGet("/random/20000");
HttpHost target = getServerHttp();
HttpResponse response = client.execute(target, httpget);
ClientConnectionRequest connreq = mgr.requestConnection(new HttpRoute(target), null);
try {
connreq.getConnection(250, TimeUnit.MILLISECONDS);
Assert.fail("ConnectionPoolTimeoutException should have been thrown");
} catch (ConnectionPoolTimeoutException expected) {
}
HttpEntity e = response.getEntity();
Assert.assertNotNull(e);
ByteArrayOutputStream outsteam = new ByteArrayOutputStream();
e.writeTo(outsteam);
// Expect one connection in the pool
stats = mgr.getTotalStats();
Assert.assertEquals(1, stats.getAvailable());
// Make sure one connection is available
connreq = mgr.requestConnection(new HttpRoute(target), null);
ManagedClientConnection conn = connreq.getConnection(250, TimeUnit.MILLISECONDS);
mgr.releaseConnection(conn, -1, null);
mgr.shutdown();
}
@Test
public void testReleaseOnAbort() throws Exception {
PoolingClientConnectionManager mgr = new PoolingClientConnectionManager();
mgr.setDefaultMaxPerRoute(1);
mgr.setMaxTotal(1);
// Zero connections in the pool
PoolStats stats = mgr.getTotalStats();
Assert.assertEquals(0, stats.getAvailable());
DefaultHttpClient client = new DefaultHttpClient(mgr);
// Get some random data
HttpGet httpget = new HttpGet("/random/20000");
HttpHost target = getServerHttp();
HttpResponse response = client.execute(target, httpget);
ClientConnectionRequest connreq = mgr.requestConnection(new HttpRoute(target), null);
try {
connreq.getConnection(250, TimeUnit.MILLISECONDS);
Assert.fail("ConnectionPoolTimeoutException should have been thrown");
} catch (ConnectionPoolTimeoutException expected) {
}
HttpEntity e = response.getEntity();
Assert.assertNotNull(e);
httpget.abort();
// Expect zero connections in the pool
Assert.assertEquals(0, mgr.getTotalStats().getAvailable());
// Make sure one connection is available
connreq = mgr.requestConnection(new HttpRoute(target), null);
ManagedClientConnection conn = connreq.getConnection(250, TimeUnit.MILLISECONDS);
mgr.releaseConnection(conn, -1, null);
mgr.shutdown();
}
@Test
public void testReleaseOnIOException() throws Exception {
localServer.register("/dropdead", new HttpRequestHandler() {
public void handle(
final HttpRequest request,
final HttpResponse response,
final HttpContext context) throws HttpException, IOException {
BasicHttpEntity entity = new BasicHttpEntity() {
@Override
public void writeTo(
final OutputStream outstream) throws IOException {
byte[] tmp = new byte[5];
outstream.write(tmp);
outstream.flush();
// do something comletely ugly in order to trigger
// MalformedChunkCodingException
DefaultHttpServerConnection conn = (DefaultHttpServerConnection)
context.getAttribute(ExecutionContext.HTTP_CONNECTION);
try {
conn.sendResponseHeader(response);
} catch (HttpException ignore) {
}
}
} ;
entity.setChunked(true);
response.setEntity(entity);
}
});
PoolingClientConnectionManager mgr = new PoolingClientConnectionManager();
mgr.setDefaultMaxPerRoute(1);
mgr.setMaxTotal(1);
// Zero connections in the pool
Assert.assertEquals(0, mgr.getTotalStats().getAvailable());
DefaultHttpClient client = new DefaultHttpClient(mgr);
// Get some random data
HttpGet httpget = new HttpGet("/dropdead");
HttpHost target = getServerHttp();
HttpResponse response = client.execute(target, httpget);
ClientConnectionRequest connreq = mgr.requestConnection(new HttpRoute(target), null);
try {
connreq.getConnection(250, TimeUnit.MILLISECONDS);
Assert.fail("ConnectionPoolTimeoutException should have been thrown");
} catch (ConnectionPoolTimeoutException expected) {
}
HttpEntity e = response.getEntity();
Assert.assertNotNull(e);
// Read the content
try {
EntityUtils.toByteArray(e);
Assert.fail("MalformedChunkCodingException should have been thrown");
} catch (MalformedChunkCodingException expected) {
}
// Expect zero connections in the pool
Assert.assertEquals(0, mgr.getTotalStats().getAvailable());
// Make sure one connection is available
connreq = mgr.requestConnection(new HttpRoute(target), null);
ManagedClientConnection conn = connreq.getConnection(250, TimeUnit.MILLISECONDS);
mgr.releaseConnection(conn, -1, null);
mgr.shutdown();
}
}