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Java example source code file (TestConnectionAutoRelease.java)
The TestConnectionAutoRelease.java example source code/* * ==================================================================== * 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.conn; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.OutputStream; import java.util.concurrent.TimeUnit; import junit.framework.Test; import junit.framework.TestSuite; 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.params.ConnPerRouteBean; import org.apache.http.conn.params.ConnManagerParams; import org.apache.http.conn.routing.HttpRoute; import org.apache.http.conn.scheme.SchemeRegistry; 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.tsccm.ThreadSafeClientConnManager; import org.apache.http.localserver.ServerTestBase; import org.apache.http.params.HttpParams; import org.apache.http.protocol.ExecutionContext; import org.apache.http.protocol.HttpContext; import org.apache.http.protocol.HttpRequestHandler; import org.apache.http.util.EntityUtils; public class TestConnectionAutoRelease extends ServerTestBase { public TestConnectionAutoRelease(String testName) { super(testName); } public static void main(String args[]) { String[] testCaseName = { TestConnectionAutoRelease.class.getName() }; junit.textui.TestRunner.main(testCaseName); } public static Test suite() { return new TestSuite(TestConnectionAutoRelease.class); } public ThreadSafeClientConnManager createTSCCM(HttpParams params, SchemeRegistry schreg) { if (params == null) params = defaultParams; if (schreg == null) schreg = supportedSchemes; return new ThreadSafeClientConnManager(params, schreg); } public void testReleaseOnEntityConsumeContent() throws Exception { HttpParams params = defaultParams.copy(); ConnManagerParams.setMaxTotalConnections (params, 1); ConnManagerParams.setMaxConnectionsPerRoute (params, new ConnPerRouteBean(1)); ThreadSafeClientConnManager mgr = createTSCCM(params, null); // Zero connections in the pool assertEquals(0, mgr.getConnectionsInPool()); DefaultHttpClient client = new DefaultHttpClient(mgr, params); // 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); fail("ConnectionPoolTimeoutException should have been thrown"); } catch (ConnectionPoolTimeoutException expected) { } HttpEntity e = response.getEntity(); assertNotNull(e); e.consumeContent(); // Expect one connection in the pool assertEquals(1, mgr.getConnectionsInPool()); // 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(); } public void testReleaseOnEntityWriteTo() throws Exception { HttpParams params = defaultParams.copy(); ConnManagerParams.setMaxTotalConnections (params, 1); ConnManagerParams.setMaxConnectionsPerRoute (params, new ConnPerRouteBean(1)); ThreadSafeClientConnManager mgr = createTSCCM(params, null); // Zero connections in the pool assertEquals(0, mgr.getConnectionsInPool()); DefaultHttpClient client = new DefaultHttpClient(mgr, params); // 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); fail("ConnectionPoolTimeoutException should have been thrown"); } catch (ConnectionPoolTimeoutException expected) { } HttpEntity e = response.getEntity(); assertNotNull(e); ByteArrayOutputStream outsteam = new ByteArrayOutputStream(); e.writeTo(outsteam); // Expect one connection in the pool assertEquals(1, mgr.getConnectionsInPool()); // 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(); } public void testReleaseOnAbort() throws Exception { HttpParams params = defaultParams.copy(); ConnManagerParams.setMaxTotalConnections (params, 1); ConnManagerParams.setMaxConnectionsPerRoute (params, new ConnPerRouteBean(1)); ThreadSafeClientConnManager mgr = createTSCCM(params, null); // Zero connections in the pool assertEquals(0, mgr.getConnectionsInPool()); DefaultHttpClient client = new DefaultHttpClient(mgr, params); // 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); fail("ConnectionPoolTimeoutException should have been thrown"); } catch (ConnectionPoolTimeoutException expected) { } HttpEntity e = response.getEntity(); assertNotNull(e); httpget.abort(); // Expect zero connections in the pool assertEquals(0, mgr.getConnectionsInPool()); // 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(); } 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); } }); HttpParams params = defaultParams.copy(); ConnManagerParams.setMaxTotalConnections (params, 1); ConnManagerParams.setMaxConnectionsPerRoute (params, new ConnPerRouteBean(1)); ThreadSafeClientConnManager mgr = createTSCCM(params, null); // Zero connections in the pool assertEquals(0, mgr.getConnectionsInPool()); DefaultHttpClient client = new DefaultHttpClient(mgr, params); // 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); fail("ConnectionPoolTimeoutException should have been thrown"); } catch (ConnectionPoolTimeoutException expected) { } HttpEntity e = response.getEntity(); assertNotNull(e); // Read the content try { EntityUtils.toByteArray(e); fail("MalformedChunkCodingException should have been thrown"); } catch (MalformedChunkCodingException expected) { } // Expect zero connections in the pool assertEquals(0, mgr.getConnectionsInPool()); // 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(); } } Other Java examples (source code examples)Here is a short list of links related to this Java TestConnectionAutoRelease.java source code file: |
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