Examples of ThreadSafeClientConnManager

org.apache.http.impl.conn.ThreadSafeClientConnManager
Manages a pool of {@link OperatedClientConnection client connections}.
This class is derived from MultiThreadedHttpConnectionManager in HttpClient 3. See there for original authors.
@author Roland Weber @author Michael Becke @version $Revision: 534769 $ $Date: 2007-05-03 11:51:22 +0200 (Thu, 03 May 2007) $ @since 4.0
org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager
Manages a pool of {@link OperatedClientConnection client connections}.
This class is derived from MultiThreadedHttpConnectionManager in HttpClient 3. See there for original authors.
@author Roland Weber @author Michael Becke @version $Revision: 691587 $ $Date: 2008-09-03 14:22:55 +0200 (Wed, 03 Sep 2008) $ @since 4.0

Examples of org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager


        HttpParams params = createDefaultParams();
        ConnManagerParams.setMaxConnectionsPerRoute(params, new ConnPerRouteBean(1));
        ConnManagerParams.setMaxTotalConnections(params, 1);


        ThreadSafeClientConnManager mgr = createTSCCM(params, null);


        HttpHost target = new HttpHost("www.test.invalid", 80, "http");
        HttpRoute route = new HttpRoute(target, null, false);


        // get the only connection, then start an extra thread
        // on shutdown, the extra thread should get an exception


        ManagedClientConnection conn =
            getConnection(mgr, route, 1L, TimeUnit.MILLISECONDS);
        GetConnThread gct = new GetConnThread(mgr, route, 0L); // no timeout
        gct.start();
        Thread.sleep(100); // give extra thread time to block




        mgr.shutdown();


        // First release the connection. If the manager keeps working
        // despite the shutdown, this will deblock the extra thread.
        // The release itself should turn into a no-op, without exception.
        mgr.releaseConnection(conn, -1, null);




        gct.join(10000);
        assertNull("thread should not have obtained connection",
                   gct.getConnection());

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Examples of org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager

        // 3.x: TestHttpConnectionManager.testWaitingThreadInterrupted


        HttpParams params = createDefaultParams();
        ConnManagerParams.setMaxTotalConnections(params, 1);


        ThreadSafeClientConnManager mgr = createTSCCM(params, null);


        HttpHost target = new HttpHost("www.test.invalid", 80, "http");
        HttpRoute route = new HttpRoute(target, null, false);


        // get the only connection, then start an extra thread
        ManagedClientConnection conn =
            getConnection(mgr, route, 1L, TimeUnit.MILLISECONDS);
        GetConnThread gct = new GetConnThread(mgr, route, 0L); // no timeout
        gct.start();
        Thread.sleep(100); // give extra thread time to block




        // interrupt the thread, it should cancel waiting with an exception
        gct.interrupt();




        gct.join(10000);
        assertNotNull("thread should have gotten an exception",
                      gct.getException());
        assertSame("thread got wrong exception",
                   InterruptedException.class,
                   gct.getException().getClass());


        // make sure the manager is still working
        try {
            getConnection(mgr, route, 10L, TimeUnit.MILLISECONDS);
            fail("should have gotten a timeout");
        } catch (ConnectionPoolTimeoutException e) {
            // expected
        }


        mgr.releaseConnection(conn, -1, null);
        // this time: no exception
        conn = getConnection(mgr, route, 10L, TimeUnit.MILLISECONDS);
        assertNotNull("should have gotten a connection", conn);


        mgr.shutdown();
    }

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Examples of org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager

        
        SchemeRegistry supportedSchemes = new SchemeRegistry();
        SocketFactory sf = PlainSocketFactory.getSocketFactory();
        supportedSchemes.register(new Scheme("http", sf, 80));
        
        ThreadSafeClientConnManager mgr = new ThreadSafeClientConnManager(
                params, supportedSchemes);


        DefaultHttpClient client = new DefaultHttpClient(mgr, params); 


        HttpHost target = new HttpHost(saddress.getHostName(), saddress.getPort(), "http");
        
        WorkerThread[] workers = new WorkerThread[10];
        for (int i = 0; i < workers.length; i++) {
            workers[i] = new WorkerThread(
                    client, 
                    target, 
                    new URI("/random/2000"), 
                    10, false);
        }
        
        for (int i = 0; i < workers.length; i++) {
            WorkerThread worker = workers[i];
            worker.start();
        }
        for (int i = 0; i < workers.length; i++) {
            WorkerThread worker = workers[i]; 
            workers[i].join(10000);
            Exception ex = worker.getException();
            if (ex != null) {
                throw ex;
            }
        }
        
        // Expect some connection in the pool
        assertTrue(mgr.getConnectionsInPool() > 0);


        mgr.shutdown();
    }

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Examples of org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager

        
        SchemeRegistry supportedSchemes = new SchemeRegistry();
        SocketFactory sf = PlainSocketFactory.getSocketFactory();
        supportedSchemes.register(new Scheme("http", sf, 80));
        
        ThreadSafeClientConnManager mgr = new ThreadSafeClientConnManager(
                params, supportedSchemes);


        DefaultHttpClient client = new DefaultHttpClient(mgr, params); 


        HttpHost target = new HttpHost(saddress.getHostName(), saddress.getPort(), "http");
        
        WorkerThread[] workers = new WorkerThread[10];
        for (int i = 0; i < workers.length; i++) {
            workers[i] = new WorkerThread(
                    client, 
                    target, 
                    new URI("/random/2000"), 
                    10, false);
        }
        
        for (int i = 0; i < workers.length; i++) {
            WorkerThread worker = workers[i]; 
            worker.start();
        }
        for (int i = 0; i < workers.length; i++) {
            WorkerThread worker = workers[i]; 
            workers[i].join(10000);
            Exception ex = worker.getException();
            if (ex != null) {
                throw ex;
            }
        }
        
        // Expect zero connections in the pool
        assertEquals(0, mgr.getConnectionsInPool());


        mgr.shutdown();
    }

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Examples of org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager

        // 3.x: TestHttpConnectionManager.testHostReusePreference


        HttpParams params = createDefaultParams();
        ConnManagerParams.setMaxTotalConnections(params, 1);


        ThreadSafeClientConnManager mgr = createTSCCM(params, null);


        HttpHost target1 = new HttpHost("www.test1.invalid", 80, "http");
        HttpRoute route1 = new HttpRoute(target1, null, false);
        HttpHost target2 = new HttpHost("www.test2.invalid", 80, "http");
        HttpRoute route2 = new HttpRoute(target2, null, false);


        // get the only connection, then start two extra threads
        ManagedClientConnection conn =
            getConnection(mgr, route1, 1L, TimeUnit.MILLISECONDS);
        GetConnThread gct1 = new GetConnThread(mgr, route1, 1000L);
        GetConnThread gct2 = new GetConnThread(mgr, route2, 1000L);


        // the second thread is started first, to distinguish the
        // route-based reuse preference from first-come, first-served
        gct2.start();
        Thread.sleep(100); // give the thread time to block
        gct1.start();
        Thread.sleep(100); // give the thread time to block




        // releasing the connection for route1 should deblock thread1
        // the other thread gets a timeout
        mgr.releaseConnection(conn, -1, null);


        gct1.join(10000);
        gct2.join(10000);


        assertNotNull("thread 1 should have gotten a connection",
                      gct1.getConnection());
        assertNull   ("thread 2 should NOT have gotten a connection",
                      gct2.getConnection());


        mgr.shutdown();
    }

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Examples of org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager

        
        SchemeRegistry supportedSchemes = new SchemeRegistry();
        SocketFactory sf = PlainSocketFactory.getSocketFactory();
        supportedSchemes.register(new Scheme("http", sf, 80));
        
        ThreadSafeClientConnManager mgr = new ThreadSafeClientConnManager(
                params, supportedSchemes);


        DefaultHttpClient client = new DefaultHttpClient(mgr, params); 


        HttpHost target = new HttpHost(saddress.getHostName(), saddress.getPort(), "http");
        
        WorkerThread[] workers = new WorkerThread[10];
        for (int i = 0; i < workers.length; i++) {
            workers[i] = new WorkerThread(
                    client, 
                    target, 
                    new URI("/random/2000"), 
                    10, true);
        }
        
        for (int i = 0; i < workers.length; i++) {
            WorkerThread worker = workers[i];
            worker.start();
        }
        for (int i = 0; i < workers.length; i++) {
            WorkerThread worker = workers[i]; 
            workers[i].join(10000);
            Exception ex = worker.getException();
            if (ex != null) {
                throw ex;
            }
        }
        
        // Expect zero connections in the pool
        assertEquals(0, mgr.getConnectionsInPool());


        mgr.shutdown();
    }

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Examples of org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager

    
    public void testAbortAfterRequestStarts() throws Exception {
        HttpParams params = createDefaultParams();
        ConnManagerParams.setMaxTotalConnections(params, 1);


        ThreadSafeClientConnManager mgr = createTSCCM(params, null);


        HttpHost target = new HttpHost("www.test.invalid", 80, "http");
        HttpRoute route = new HttpRoute(target, null, false);
        
        // get the only connection, then start an extra thread
        ManagedClientConnection conn = getConnection(mgr, route, 1L, TimeUnit.MILLISECONDS);
        ClientConnectionRequest request = mgr.requestConnection(route, null);
        GetConnThread gct = new GetConnThread(request, route, 0L); // no timeout
        gct.start();
        Thread.sleep(100); // give extra thread time to block


        request.abortRequest();


        gct.join(10000);
        assertNotNull("thread should have gotten an exception",
                      gct.getException());
        assertSame("thread got wrong exception",
                   InterruptedException.class,
                   gct.getException().getClass());


        // make sure the manager is still working
        try {
            getConnection(mgr, route, 10L, TimeUnit.MILLISECONDS);
            fail("should have gotten a timeout");
        } catch (ConnectionPoolTimeoutException e) {
            // expected
        }


        mgr.releaseConnection(conn, -1, null);
        // this time: no exception
        conn = getConnection(mgr, route, 10L, TimeUnit.MILLISECONDS);
        assertNotNull("should have gotten a connection", conn);


        mgr.shutdown();
    }

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Examples of org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager

        
        SchemeRegistry supportedSchemes = new SchemeRegistry();
        SocketFactory sf = PlainSocketFactory.getSocketFactory();
        supportedSchemes.register(new Scheme("http", sf, 80));
        
        ThreadSafeClientConnManager mgr = new ThreadSafeClientConnManager(
                params, supportedSchemes);


        DefaultHttpClient client = new DefaultHttpClient(mgr, params);
        HttpHost target = new HttpHost(saddress.getHostName(), saddress.getPort(), "http");
        
        HttpResponse response = client.execute(target, new HttpGet("/random/2000"));
        if(response.getEntity() != null)
            response.getEntity().consumeContent();
        
        assertEquals(1, mgr.getConnectionsInPool());
        assertEquals(1, localServer.getAcceptedConnectionCount());
        
        response = client.execute(target, new HttpGet("/random/2000"));
        if(response.getEntity() != null)
            response.getEntity().consumeContent();
        
        assertEquals(1, mgr.getConnectionsInPool());
        assertEquals(1, localServer.getAcceptedConnectionCount());
        
        // Now sleep for 1.1 seconds and let the timeout do its work
        Thread.sleep(1100);
        response = client.execute(target, new HttpGet("/random/2000"));
        if(response.getEntity() != null)
            response.getEntity().consumeContent();
        
        assertEquals(1, mgr.getConnectionsInPool());
        assertEquals(2, localServer.getAcceptedConnectionCount());
        
        // Do another request just under the 1 second limit & make
        // sure we reuse that connection.
        Thread.sleep(500);
        response = client.execute(target, new HttpGet("/random/2000"));
        if(response.getEntity() != null)
            response.getEntity().consumeContent();
        
        assertEquals(1, mgr.getConnectionsInPool());
        assertEquals(2, localServer.getAcceptedConnectionCount());
        


        mgr.shutdown();
    }

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Examples of org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager

    
    public void testAbortBeforeRequestStarts() throws Exception {
        HttpParams params = createDefaultParams();
        ConnManagerParams.setMaxTotalConnections(params, 1);


        ThreadSafeClientConnManager mgr = createTSCCM(params, null);


        HttpHost target = new HttpHost("www.test.invalid", 80, "http");
        HttpRoute route = new HttpRoute(target, null, false);
        


        // get the only connection, then start an extra thread
        ManagedClientConnection conn = getConnection(mgr, route, 1L, TimeUnit.MILLISECONDS);
        ClientConnectionRequest request = mgr.requestConnection(route, null);
        request.abortRequest();
        
        GetConnThread gct = new GetConnThread(request, route, 0L); // no timeout
        gct.start();
        Thread.sleep(100); // give extra thread time to block


        gct.join(10000);
        assertNotNull("thread should have gotten an exception",
                      gct.getException());
        assertSame("thread got wrong exception",
                   InterruptedException.class,
                   gct.getException().getClass());


        // make sure the manager is still working
        try {
            getConnection(mgr, route, 10L, TimeUnit.MILLISECONDS);
            fail("should have gotten a timeout");
        } catch (ConnectionPoolTimeoutException e) {
            // expected
        }


        mgr.releaseConnection(conn, -1, null);
        // this time: no exception
        conn = getConnection(mgr, route, 10L, TimeUnit.MILLISECONDS);
        assertNotNull("should have gotten a connection", conn);


        mgr.shutdown();
    }

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Examples of org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager

        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();
    }

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