Examples of org.apache.http.impl.conn.PoolingHttpClientConnectionManager

org.apache.http.impl.conn.PoolingHttpClientConnectionManager
ClientConnectionPoolManager maintains a pool of {@link HttpClientConnection}s and is able to service connection requests from multiple execution threads. Connections are pooled on a per route basis. A request for a route which already the manager has persistent connections for available in the pool will be services by leasing a connection from the pool rather than creating a brand new connection.
ClientConnectionPoolManager maintains a maximum limit of connection on a per route basis and in total. Per default this implementation will create no more than than 2 concurrent connections per given route and no more 20 connections in total. For many real-world applications these limits may prove too constraining, especially if they use HTTP as a transport protocol for their services. Connection limits, however, can be adjusted using {@link ConnPoolControl} methods. @since 4.3

    }


    @Test
    public void testCloseExpiredTTLConnections() throws Exception {


        this.connManager = new PoolingHttpClientConnectionManager(
                100, TimeUnit.MILLISECONDS);
        this.clientBuilder.setConnectionManager(this.connManager);


        this.connManager.setMaxTotal(1);

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                connectLatch, WaitPolicy.BEFORE_CONNECT, PlainConnectionSocketFactory.getSocketFactory());
        final Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
            .register("http", stallingSocketFactory)
            .build();


        this.connManager = new PoolingHttpClientConnectionManager(registry);
        this.clientBuilder.setConnectionManager(this.connManager);


        this.connManager.setMaxTotal(1);


        final HttpHost target = start();

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                connectLatch, WaitPolicy.BEFORE_CREATE, PlainConnectionSocketFactory.getSocketFactory());
        final Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
            .register("http", stallingSocketFactory)
            .build();


        this.connManager = new PoolingHttpClientConnectionManager(registry);
        this.clientBuilder.setConnectionManager(this.connManager);


        this.connManager.setMaxTotal(1);


        final HttpHost target = start();

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                connectLatch, WaitPolicy.AFTER_CONNECT, PlainConnectionSocketFactory.getSocketFactory());
        final Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
            .register("http", stallingSocketFactory)
            .build();


        this.connManager = new PoolingHttpClientConnectionManager(registry);
        this.clientBuilder.setConnectionManager(this.connManager);


        this.connManager.setMaxTotal(1);


        final HttpHost target = start();

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                closeableHttpAsyncClient.start();
            }
            else
            {


                PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();


                connectionManager.setMaxTotal( cubeBuilder.getMaxTotalConnections() );


                connectionManager.setDefaultMaxPerRoute( cubeBuilder.getDefaultMaxPerRoute() );


                httpclient = HttpClientBuilder.create().setConnectionManager( connectionManager ).build();


            }

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    return request;
  }


  protected CloseableHttpClient createHttpClient(GoogleAnalyticsConfig config) {
    PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
    connManager.setDefaultMaxPerRoute(getDefaultMaxPerRoute(config));


    HttpClientBuilder builder = HttpClients.custom().setConnectionManager(connManager);


    if (isNotEmpty(config.getUserAgent())) {
      builder.setUserAgent(config.getUserAgent());

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    private static HttpClientConnectionManager makeConnectionManager(int maxConnections) {
        // Jersey requires an instance of the ClientConnectionManager interface which is deprecated in the latest
        // version of the Apache HttpComponents. In a future version, this implementation should be updated to
        // the PoolingHttpClientConnectionManager and the HttpClientConnectionManager.
        PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
        connectionManager.setMaxTotal(maxConnections);
        connectionManager.setDefaultMaxPerRoute(maxConnections);
        return connectionManager;
    }

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    return request;
  }


  protected CloseableHttpClient createHttpClient(GoogleAnalyticsConfig config) {
    PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
    connManager.setDefaultMaxPerRoute(getDefaultMaxPerRoute(config));


    HttpClientBuilder builder = HttpClients.custom().setConnectionManager(connManager);


    if (isNotEmpty(config.getUserAgent())) {
      builder.setUserAgent(config.getUserAgent());

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                                SSLContexts.createDefault(),
                                hostnameVerifier);
                    }
                }
            }
            @SuppressWarnings("resource")
            final PoolingHttpClientConnectionManager poolingmgr = new PoolingHttpClientConnectionManager(
                    RegistryBuilder.<ConnectionSocketFactory>create()
                        .register("http", PlainConnectionSocketFactory.getSocketFactory())
                        .register("https", sslSocketFactory)
                        .build());
            if (defaultSocketConfig != null) {
                poolingmgr.setDefaultSocketConfig(defaultSocketConfig);
            }
            if (defaultConnectionConfig != null) {
                poolingmgr.setDefaultConnectionConfig(defaultConnectionConfig);
            }
            if (systemProperties) {
                String s = System.getProperty("http.keepAlive", "true");
                if ("true".equalsIgnoreCase(s)) {
                    s = System.getProperty("http.maxConnections", "5");
                    final int max = Integer.parseInt(s);
                    poolingmgr.setDefaultMaxPerRoute(max);
                    poolingmgr.setMaxTotal(2 * max);
                }
            }
            if (maxConnTotal > 0) {
                poolingmgr.setMaxTotal(maxConnTotal);
            }
            if (maxConnPerRoute > 0) {
                poolingmgr.setDefaultMaxPerRoute(maxConnPerRoute);
            }
            connManager = poolingmgr;
        }
        ConnectionReuseStrategy reuseStrategy = this.reuseStrategy;
        if (reuseStrategy == null) {

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        return builder.build();
    }
    
    protected HttpClientConnectionManager createConnectionManager(Registry<ConnectionSocketFactory> registry) {
        // setup the connection live time
        PoolingHttpClientConnectionManager answer = 
            new PoolingHttpClientConnectionManager(registry, null, null, null, getConnectionTimeToLive(), TimeUnit.MILLISECONDS);
        if (getMaxTotalConnections() > 0) {
            answer.setMaxTotal(getMaxTotalConnections());
        }
        if (getConnectionsPerRoute() > 0) {
            answer.setDefaultMaxPerRoute(getConnectionsPerRoute());
        }
        LOG.info("Created ClientConnectionManager " + answer);


        return answer;
    }

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