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

org.apache.http.impl.conn.PoolingClientConnectionManager
Manages a pool of {@link OperatedClientConnection client connections} andis 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.
PoolingConnectionManager 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 HTTP parameters. @since 4.2 @deprecated (4.3) use {@link PoolingHttpClientConnectionManager}.

    public static HttpClient createCachingHttpClient() {
        return new SystemDefaultHttpClient() {
          /** See SystemDefaultHttpClient (4.2).  This version always sets the connection cache */  
          @Override
          protected ClientConnectionManager createClientConnectionManager() {
              PoolingClientConnectionManager connmgr = new PoolingClientConnectionManager(
                      SchemeRegistryFactory.createSystemDefault());
              String s = System.getProperty("http.maxConnections", "5");
              int max = Integer.parseInt(s);
              connmgr.setDefaultMaxPerRoute(max);
              connmgr.setMaxTotal(2 * max);
              return connmgr;
          }
        } ;
    } ;

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    public static void main(String[] args) throws Exception {
        // Create an HttpClient with the ThreadSafeClientConnManager.
        // This connection manager must be used if more than one thread will
        // be using the HttpClient.
        PoolingClientConnectionManager cm = new PoolingClientConnectionManager();
        cm.setMaxTotal(100);


        HttpClient httpclient = new DefaultHttpClient(cm);
        try {
            // create an array of URIs to perform GETs on
            String[] urisToGet = {

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    {
        if ( networkConfiguration == null )
        {
            // back to default values
            HttpWagon.setUseClientManagerPooled( true );
            poolingClientConnectionManager = new PoolingClientConnectionManager();
            poolingClientConnectionManager.setDefaultMaxPerRoute( 30 );
            poolingClientConnectionManager.setMaxTotal( 30 );
            HttpWagon.setConnectionManagerPooled( poolingClientConnectionManager );


        }
        else
        {
            HttpWagon.setUseClientManagerPooled( networkConfiguration.isUsePooling() );
            poolingClientConnectionManager = new PoolingClientConnectionManager();
            poolingClientConnectionManager.setDefaultMaxPerRoute( networkConfiguration.getMaxTotalPerHost() );
            poolingClientConnectionManager.setMaxTotal( networkConfiguration.getMaxTotal() );
            HttpWagon.setConnectionManagerPooled( poolingClientConnectionManager );
        }
    }

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  {
    synchronized (httpClientLock)
    {
      if (httpClient == null)
      {
        connectionManager = new PoolingClientConnectionManager();
        BasicHttpParams params = new BasicHttpParams();
        params.setBooleanParameter(CoreConnectionPNames.TCP_NODELAY,true);
        params.setBooleanParameter(CoreConnectionPNames.STALE_CONNECTION_CHECK,false);
        //params.setIntParameter(CoreConnectionPNames.SO_TIMEOUT,socketTimeOut);
        DefaultHttpClient localHttpClient = new DefaultHttpClient(connectionManager,params);

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        serverPort = 2099;
      else
        serverPort = new Integer(serverPortString).intValue();


      // Set up connection manager
      PoolingClientConnectionManager localConnectionManager = new PoolingClientConnectionManager();
      localConnectionManager.setMaxTotal(1);
      // Set up ssl if indicated
      keystoreData = params.getParameter(LiveLinkParameters.livelinkKeystore);
      if (keystoreData != null)
      {
        keystoreManager = KeystoreManagerFactory.make("",keystoreData);
        SSLSocketFactory myFactory = new SSLSocketFactory(keystoreManager.getSecureSocketFactory(),
          new BrowserCompatHostnameVerifier());
        Scheme myHttpsProtocol = new Scheme("https", 443, myFactory);
        localConnectionManager.getSchemeRegistry().register(myHttpsProtocol);
      }
      connectionManager = localConnectionManager;


      // Create the httpclient
      BasicHttpParams params = new BasicHttpParams();

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  @Override
  public void connect(ConfigParams configParams)
  {
    super.connect(configParams);
    PoolingClientConnectionManager localConnectionManager = new PoolingClientConnectionManager();
    localConnectionManager.setMaxTotal(1);
    connectionManager = localConnectionManager;
    DefaultHttpClient localClient = new DefaultHttpClient(connectionManager);
    // No retries
    localClient.setHttpRequestRetryHandler(new HttpRequestRetryHandler()
      {

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    // Set up the pool.
    // We have a choice: We can either have one httpclient instance, which gets reinitialized for every service
    // it connects with (because each one has a potentially different proxy setup), OR we can have a different
    // httpclient for each service.  The latter approach is obviously the more efficient, so I've chosen to do it
    // that way.
    PoolingClientConnectionManager localConnectionManager = new PoolingClientConnectionManager();
    localConnectionManager.setMaxTotal(1);
    if (mySSLFactory != null)
    {
      SSLSocketFactory myFactory = new SSLSocketFactory(mySSLFactory, new BrowserCompatHostnameVerifier());
      Scheme myHttpsProtocol = new Scheme("https", 443, myFactory);
      localConnectionManager.getSchemeRegistry().register(myHttpsProtocol);
    }
    connectionManager = localConnectionManager;


    // Parse the user and password values
    int index = userName.indexOf("\\");

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    callUrlSnippet = null;
    serverLocation = config.getServerLocation();
    indexName = config.getIndexName();
    userName = config.getUserName();
    apiKey = config.getApiKey();
    PoolingClientConnectionManager localConnectionManager = new PoolingClientConnectionManager();
    localConnectionManager.setMaxTotal(1);
    connectionManager = localConnectionManager;
    DefaultHttpClient localHttpClient = new DefaultHttpClient(connectionManager);
    // No retries
    localHttpClient.setHttpRequestRetryHandler(new HttpRequestRetryHandler()
      {

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      }


      // Set up ssl if indicated
      keystoreData = params.getParameter( "keystore" );


      PoolingClientConnectionManager localConnectionManager = new PoolingClientConnectionManager();
      localConnectionManager.setMaxTotal(1);
      connectionManager = localConnectionManager;


      if (keystoreData != null)
      {
        keystoreManager = KeystoreManagerFactory.make("",keystoreData);

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        this.username = username;
        this.password = password;
        this.charset = charset;
        this.verbose = verbose;


        PoolingClientConnectionManager poolingClientConnectionManager = new PoolingClientConnectionManager();
        poolingClientConnectionManager.setMaxTotal( 5 );
        this.httpClient = new DefaultHttpClient( poolingClientConnectionManager );
        if ( StringUtils.isNotEmpty( username ) )
        {
            Credentials creds = new UsernamePasswordCredentials( username, password );

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