Example usage for org.apache.http.impl.conn BasicClientConnectionManager closeExpiredConnections

List of usage examples for org.apache.http.impl.conn BasicClientConnectionManager closeExpiredConnections

Introduction

In this page you can find the example usage for org.apache.http.impl.conn BasicClientConnectionManager closeExpiredConnections.

Prototype

public void closeExpiredConnections() 

Source Link

Usage

From source file:org.glassfish.jersey.apache.connector.HelloWorldTest.java

/**
 * JERSEY-2157 reproducer.//from  w w w.ja  v  a 2 s  . c om
 * <p>
 * The test ensures that entities of the error responses which cause
 * WebApplicationException being thrown by a JAX-RS client are buffered
 * and that the underlying input connections are automatically released
 * in such case.
 */
@Test
public void testConnectionClosingOnExceptionsForErrorResponses() {
    final BasicClientConnectionManager cm = new BasicClientConnectionManager();
    final AtomicInteger connectionCounter = new AtomicInteger(0);

    final ClientConfig config = new ClientConfig().property(ApacheClientProperties.CONNECTION_MANAGER,
            new ClientConnectionManager() {
                @Override
                public SchemeRegistry getSchemeRegistry() {
                    return cm.getSchemeRegistry();
                }

                @Override
                public ClientConnectionRequest requestConnection(final HttpRoute route, final Object state) {
                    connectionCounter.incrementAndGet();

                    final ClientConnectionRequest wrappedRequest = cm.requestConnection(route, state);

                    /**
                     * To explain the following long piece of code:
                     *
                     * All the code does is to just create a wrapper implementations
                     * for the AHC connection management interfaces.
                     *
                     * The only really important piece of code is the
                     * {@link org.apache.http.conn.ManagedClientConnection#releaseConnection()} implementation,
                     * where the connectionCounter is decremented when a managed connection instance
                     * is released by AHC runtime. In our test, this is expected to happen
                     * as soon as the exception is created for an error response
                     * (as the error response entity gets buffered in
                     * {@link org.glassfish.jersey.client.JerseyInvocation#convertToException(javax.ws.rs.core.Response)}).
                     */
                    return new ClientConnectionRequest() {
                        @Override
                        public ManagedClientConnection getConnection(long timeout, TimeUnit tunit)
                                throws InterruptedException, ConnectionPoolTimeoutException {

                            final ManagedClientConnection wrappedConnection = wrappedRequest
                                    .getConnection(timeout, tunit);

                            return new ManagedClientConnection() {
                                @Override
                                public boolean isSecure() {
                                    return wrappedConnection.isSecure();
                                }

                                @Override
                                public HttpRoute getRoute() {
                                    return wrappedConnection.getRoute();
                                }

                                @Override
                                public SSLSession getSSLSession() {
                                    return wrappedConnection.getSSLSession();
                                }

                                @Override
                                public void open(HttpRoute route, HttpContext context, HttpParams params)
                                        throws IOException {
                                    wrappedConnection.open(route, context, params);
                                }

                                @Override
                                public void tunnelTarget(boolean secure, HttpParams params) throws IOException {
                                    wrappedConnection.tunnelTarget(secure, params);
                                }

                                @Override
                                public void tunnelProxy(HttpHost next, boolean secure, HttpParams params)
                                        throws IOException {
                                    wrappedConnection.tunnelProxy(next, secure, params);
                                }

                                @Override
                                public void layerProtocol(HttpContext context, HttpParams params)
                                        throws IOException {
                                    wrappedConnection.layerProtocol(context, params);
                                }

                                @Override
                                public void markReusable() {
                                    wrappedConnection.markReusable();
                                }

                                @Override
                                public void unmarkReusable() {
                                    wrappedConnection.unmarkReusable();
                                }

                                @Override
                                public boolean isMarkedReusable() {
                                    return wrappedConnection.isMarkedReusable();
                                }

                                @Override
                                public void setState(Object state) {
                                    wrappedConnection.setState(state);
                                }

                                @Override
                                public Object getState() {
                                    return wrappedConnection.getState();
                                }

                                @Override
                                public void setIdleDuration(long duration, TimeUnit unit) {
                                    wrappedConnection.setIdleDuration(duration, unit);
                                }

                                @Override
                                public boolean isResponseAvailable(int timeout) throws IOException {
                                    return wrappedConnection.isResponseAvailable(timeout);
                                }

                                @Override
                                public void sendRequestHeader(HttpRequest request)
                                        throws HttpException, IOException {
                                    wrappedConnection.sendRequestHeader(request);
                                }

                                @Override
                                public void sendRequestEntity(HttpEntityEnclosingRequest request)
                                        throws HttpException, IOException {
                                    wrappedConnection.sendRequestEntity(request);
                                }

                                @Override
                                public HttpResponse receiveResponseHeader() throws HttpException, IOException {
                                    return wrappedConnection.receiveResponseHeader();
                                }

                                @Override
                                public void receiveResponseEntity(HttpResponse response)
                                        throws HttpException, IOException {
                                    wrappedConnection.receiveResponseEntity(response);
                                }

                                @Override
                                public void flush() throws IOException {
                                    wrappedConnection.flush();
                                }

                                @Override
                                public void close() throws IOException {
                                    wrappedConnection.close();
                                }

                                @Override
                                public boolean isOpen() {
                                    return wrappedConnection.isOpen();
                                }

                                @Override
                                public boolean isStale() {
                                    return wrappedConnection.isStale();
                                }

                                @Override
                                public void setSocketTimeout(int timeout) {
                                    wrappedConnection.setSocketTimeout(timeout);
                                }

                                @Override
                                public int getSocketTimeout() {
                                    return wrappedConnection.getSocketTimeout();
                                }

                                @Override
                                public void shutdown() throws IOException {
                                    wrappedConnection.shutdown();
                                }

                                @Override
                                public HttpConnectionMetrics getMetrics() {
                                    return wrappedConnection.getMetrics();
                                }

                                @Override
                                public InetAddress getLocalAddress() {
                                    return wrappedConnection.getLocalAddress();
                                }

                                @Override
                                public int getLocalPort() {
                                    return wrappedConnection.getLocalPort();
                                }

                                @Override
                                public InetAddress getRemoteAddress() {
                                    return wrappedConnection.getRemoteAddress();
                                }

                                @Override
                                public int getRemotePort() {
                                    return wrappedConnection.getRemotePort();
                                }

                                @Override
                                public void releaseConnection() throws IOException {
                                    connectionCounter.decrementAndGet();
                                    wrappedConnection.releaseConnection();
                                }

                                @Override
                                public void abortConnection() throws IOException {
                                    wrappedConnection.abortConnection();
                                }

                                @Override
                                public String getId() {
                                    return wrappedConnection.getId();
                                }

                                @Override
                                public void bind(Socket socket) throws IOException {
                                    wrappedConnection.bind(socket);
                                }

                                @Override
                                public Socket getSocket() {
                                    return wrappedConnection.getSocket();
                                }
                            };
                        }

                        @Override
                        public void abortRequest() {
                            wrappedRequest.abortRequest();
                        }
                    };
                }

                @Override
                public void releaseConnection(ManagedClientConnection conn, long keepalive, TimeUnit tunit) {
                    cm.releaseConnection(conn, keepalive, tunit);
                }

                @Override
                public void closeExpiredConnections() {
                    cm.closeExpiredConnections();
                }

                @Override
                public void closeIdleConnections(long idletime, TimeUnit tunit) {
                    cm.closeIdleConnections(idletime, tunit);
                }

                @Override
                public void shutdown() {
                    cm.shutdown();
                }
            });
    config.connectorProvider(new ApacheConnectorProvider());

    final Client client = ClientBuilder.newClient(config);
    final WebTarget rootTarget = client.target(getBaseUri()).path(ROOT_PATH);

    // Test that connection is getting closed properly for error responses.
    try {
        final String response = rootTarget.path("error").request().get(String.class);
        fail("Exception expected. Received: " + response);
    } catch (InternalServerErrorException isee) {
        // do nothing - connection should be closed properly by now
    }

    // Fail if the previous connection has not been closed automatically.
    assertEquals(0, connectionCounter.get());

    try {
        final String response = rootTarget.path("error2").request().get(String.class);
        fail("Exception expected. Received: " + response);
    } catch (InternalServerErrorException isee) {
        assertEquals("Received unexpected data.", "Error2.", isee.getResponse().readEntity(String.class));
        // Test buffering:
        // second read would fail if entity was not buffered
        assertEquals("Unexpected data in the entity buffer.", "Error2.",
                isee.getResponse().readEntity(String.class));
    }

    assertEquals(0, connectionCounter.get());
}