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

 * from the connection pool.
 */
public class ClientEvictExpiredConnections {


    public static void main(String[] args) throws Exception {
        PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
        cm.setMaxTotal(100);
        CloseableHttpClient httpclient = HttpClients.custom()
                .setConnectionManager(cm)
                .build();
        try {
            // create an array of URIs to perform GETs on

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                                SSLContexts.createDefault(),
                                hostnameVerifierCopy);
                    }
                }
            }
            @SuppressWarnings("resource")
            final PoolingHttpClientConnectionManager poolingmgr = new PoolingHttpClientConnectionManager(
                    RegistryBuilder.<ConnectionSocketFactory>create()
                        .register("http", PlainConnectionSocketFactory.getSocketFactory())
                        .register("https", sslSocketFactoryCopy)
                        .build(),
                    null,
                    null,
                    null,
                    connTimeToLive,
                    connTimeToLiveTimeUnit != null ? connTimeToLiveTimeUnit : TimeUnit.MILLISECONDS);
            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);
            }
            connManagerCopy = poolingmgr;
        }
        ConnectionReuseStrategy reuseStrategyCopy = this.reuseStrategy;
        if (reuseStrategyCopy == null) {

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    }


    @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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                .registerHandler("/random/*", new RandomHandler());
        if (this.scheme.equals(ProtocolScheme.https)) {
            this.serverBootstrap.setSslContext(SSLTestContexts.createServerSSLContext());
        }


        this.connManager = new PoolingHttpClientConnectionManager();
        this.clientBuilder = HttpClientBuilder.create()
                .setDefaultSocketConfig(socketConfig)
                .setConnectionManager(this.connManager);
    }

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    public HttpClientGenerator() {
        Registry<ConnectionSocketFactory> reg = RegistryBuilder.<ConnectionSocketFactory>create()
                .register("http", PlainConnectionSocketFactory.INSTANCE)
                .register("https", SSLConnectionSocketFactory.getSocketFactory())
                .build();
        connectionManager = new PoolingHttpClientConnectionManager(reg);
        connectionManager.setDefaultMaxPerRoute(100);
    }

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  private HttpClient httpClient;


  public NagiosCheckSenderImpl(NRDPServerConnectionSettings server) {
    this.server = server;
    // initialize HTTP client 
    PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
    RequestConfig requestConfig = RequestConfig.custom()//
        .setSocketTimeout(server.getTimeout())//
        .setConnectTimeout(server.getTimeout()).build();
    httpClient = HttpClients.custom()//
        .setDefaultRequestConfig(requestConfig)//

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        return ClientBuilder.newClient(cc);
    }


    protected Client createPoolingClient() {
        ClientConfig cc = new ClientConfig();
        PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
        connectionManager.setMaxTotal(100);
        connectionManager.setDefaultMaxPerRoute(100);
        cc.property(ApacheClientProperties.CONNECTION_MANAGER, connectionManager);
        cc.connectorProvider(new ApacheConnectorProvider());
        return ClientBuilder.newClient(cc);
    }

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