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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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* under the License.
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package org.apache.http.impl.client.integration;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.concurrent.TimeUnit;
import org.apache.http.HttpClientConnection;
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.ConnectionPoolTimeoutException;
import org.apache.http.conn.ConnectionRequest;
import org.apache.http.conn.routing.HttpRoute;
import org.apache.http.entity.BasicHttpEntity;
import org.apache.http.impl.DefaultBHttpServerConnection;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.pool.PoolStats;
import org.apache.http.protocol.HttpContext;
import org.apache.http.protocol.HttpCoreContext;
import org.apache.http.protocol.HttpRequestHandler;
import org.apache.http.util.EntityUtils;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class TestConnectionAutoRelease extends IntegrationTestBase {
private PoolingHttpClientConnectionManager mgr;
@Before
public void setUp() throws Exception {
startServer();
this.mgr = new PoolingHttpClientConnectionManager();
this.httpclient = HttpClients.custom().setConnectionManager(this.mgr).build();
}
@Test
public void testReleaseOnEntityConsumeContent() throws Exception {
this.mgr.setDefaultMaxPerRoute(1);
this.mgr.setMaxTotal(1);
// Zero connections in the pool
PoolStats stats = this.mgr.getTotalStats();
Assert.assertEquals(0, stats.getAvailable());
// Get some random data
final HttpGet httpget = new HttpGet("/random/20000");
final HttpHost target = getServerHttp();
final HttpResponse response = this.httpclient.execute(target, httpget);
ConnectionRequest connreq = this.mgr.requestConnection(new HttpRoute(target), null);
try {
connreq.get(250, TimeUnit.MILLISECONDS);
Assert.fail("ConnectionPoolTimeoutException should have been thrown");
} catch (final ConnectionPoolTimeoutException expected) {
}
final HttpEntity e = response.getEntity();
Assert.assertNotNull(e);
EntityUtils.consume(e);
// Expect one connection in the pool
stats = this.mgr.getTotalStats();
Assert.assertEquals(1, stats.getAvailable());
// Make sure one connection is available
connreq = this.mgr.requestConnection(new HttpRoute(target), null);
final HttpClientConnection conn = connreq.get(250, TimeUnit.MILLISECONDS);
this.mgr.releaseConnection(conn, null, -1, null);
}
@Test
public void testReleaseOnEntityWriteTo() throws Exception {
this.mgr.setDefaultMaxPerRoute(1);
this.mgr.setMaxTotal(1);
// Zero connections in the pool
PoolStats stats = this.mgr.getTotalStats();
Assert.assertEquals(0, stats.getAvailable());
// Get some random data
final HttpGet httpget = new HttpGet("/random/20000");
final HttpHost target = getServerHttp();
final HttpResponse response = this.httpclient.execute(target, httpget);
ConnectionRequest connreq = this.mgr.requestConnection(new HttpRoute(target), null);
try {
connreq.get(250, TimeUnit.MILLISECONDS);
Assert.fail("ConnectionPoolTimeoutException should have been thrown");
} catch (final ConnectionPoolTimeoutException expected) {
}
final HttpEntity e = response.getEntity();
Assert.assertNotNull(e);
final ByteArrayOutputStream outsteam = new ByteArrayOutputStream();
e.writeTo(outsteam);
// Expect one connection in the pool
stats = this.mgr.getTotalStats();
Assert.assertEquals(1, stats.getAvailable());
// Make sure one connection is available
connreq = this.mgr.requestConnection(new HttpRoute(target), null);
final HttpClientConnection conn = connreq.get(250, TimeUnit.MILLISECONDS);
this.mgr.releaseConnection(conn, null, -1, null);
}
@Test
public void testReleaseOnAbort() throws Exception {
this.mgr.setDefaultMaxPerRoute(1);
this.mgr.setMaxTotal(1);
// Zero connections in the pool
final PoolStats stats = this.mgr.getTotalStats();
Assert.assertEquals(0, stats.getAvailable());
// Get some random data
final HttpGet httpget = new HttpGet("/random/20000");
final HttpHost target = getServerHttp();
final HttpResponse response = this.httpclient.execute(target, httpget);
ConnectionRequest connreq = this.mgr.requestConnection(new HttpRoute(target), null);
try {
connreq.get(250, TimeUnit.MILLISECONDS);
Assert.fail("ConnectionPoolTimeoutException should have been thrown");
} catch (final ConnectionPoolTimeoutException expected) {
}
final HttpEntity e = response.getEntity();
Assert.assertNotNull(e);
httpget.abort();
// Expect zero connections in the pool
Assert.assertEquals(0, this.mgr.getTotalStats().getAvailable());
// Make sure one connection is available
connreq = this.mgr.requestConnection(new HttpRoute(target), null);
final HttpClientConnection conn = connreq.get(250, TimeUnit.MILLISECONDS);
this.mgr.releaseConnection(conn, null, -1, null);
}
@Test
public void testReleaseOnIOException() throws Exception {
this.localServer.register("/dropdead", new HttpRequestHandler() {
public void handle(
final HttpRequest request,
final HttpResponse response,
final HttpContext context) throws HttpException, IOException {
final BasicHttpEntity entity = new BasicHttpEntity() {
@Override
public void writeTo(
final OutputStream outstream) throws IOException {
final byte[] tmp = new byte[5];
outstream.write(tmp);
outstream.flush();
// do something comletely ugly in order to trigger
// MalformedChunkCodingException
final DefaultBHttpServerConnection conn = (DefaultBHttpServerConnection)
context.getAttribute(HttpCoreContext.HTTP_CONNECTION);
try {
conn.sendResponseHeader(response);
} catch (final HttpException ignore) {
}
}
} ;
entity.setChunked(true);
response.setEntity(entity);
}
});
this.mgr.setDefaultMaxPerRoute(1);
this.mgr.setMaxTotal(1);
// Zero connections in the pool
Assert.assertEquals(0, this.mgr.getTotalStats().getAvailable());
// Get some random data
final HttpGet httpget = new HttpGet("/dropdead");
final HttpHost target = getServerHttp();
final HttpResponse response = this.httpclient.execute(target, httpget);
ConnectionRequest connreq = this.mgr.requestConnection(new HttpRoute(target), null);
try {
connreq.get(250, TimeUnit.MILLISECONDS);
Assert.fail("ConnectionPoolTimeoutException should have been thrown");
} catch (final ConnectionPoolTimeoutException expected) {
}
final HttpEntity e = response.getEntity();
Assert.assertNotNull(e);
// Read the content
try {
EntityUtils.toByteArray(e);
Assert.fail("MalformedChunkCodingException should have been thrown");
} catch (final MalformedChunkCodingException expected) {
}
// Expect zero connections in the pool
Assert.assertEquals(0, this.mgr.getTotalStats().getAvailable());
// Make sure one connection is available
connreq = this.mgr.requestConnection(new HttpRoute(target), null);
final HttpClientConnection conn = connreq.get(250, TimeUnit.MILLISECONDS);
this.mgr.releaseConnection(conn, null, -1, null);
}
}