Package org.apache.http.impl.conn

Class DefaultClientConnectionOperator

java.lang.Object
org.apache.http.impl.conn.DefaultClientConnectionOperator
All Implemented Interfaces:
ClientConnectionOperator
@Deprecated @Contract(threading=SAFE_CONDITIONAL) public class DefaultClientConnectionOperator extends Object implements ClientConnectionOperator
Deprecated.
(4.3) use PoolingHttpClientConnectionManager.
Default implementation of a ClientConnectionOperator. It uses a SchemeRegistry to look up SchemeSocketFactory objects.

This connection operator is multihome network aware and will attempt to retry failed connects against all known IP addresses sequentially until the connect is successful or all known addresses fail to respond. Please note the same CoreConnectionPNames.CONNECTION_TIMEOUT value will be used for each connection attempt, so in the worst case the total elapsed time before timeout can be CONNECTION_TIMEOUT * n where n is the number of IP addresses of the given host. One can disable multihome support by overriding the resolveHostname(String) method and returning only one IP address for the given host name.

The following parameters can be used to customize the behavior of this class:

  • CoreProtocolPNames.HTTP_ELEMENT_CHARSET
  • CoreConnectionPNames.SO_TIMEOUT
  • CoreConnectionPNames.SO_LINGER
  • CoreConnectionPNames.SO_REUSEADDR
  • CoreConnectionPNames.TCP_NODELAY
  • CoreConnectionPNames.SOCKET_BUFFER_SIZE
  • CoreConnectionPNames.CONNECTION_TIMEOUT
  • CoreConnectionPNames.MAX_LINE_LENGTH
Since:
4.0

  • Field Details

    • log

      private final org.apache.commons.logging.Log log
      Deprecated.

    • schemeRegistry

      protected final SchemeRegistry schemeRegistry
      Deprecated.
      The scheme registry for looking up socket factories.

    • dnsResolver

      protected final DnsResolver dnsResolver
      Deprecated.
      the custom-configured DNS lookup mechanism.

  • Constructor Details

    • DefaultClientConnectionOperator

      public DefaultClientConnectionOperator(SchemeRegistry schemes)
      Deprecated.
      Creates a new client connection operator for the given scheme registry.
      Parameters:
      schemes - the scheme registry
      Since:
      4.2

    • DefaultClientConnectionOperator

      public DefaultClientConnectionOperator(SchemeRegistry schemes, DnsResolver dnsResolver)
      Deprecated.
      Creates a new client connection operator for the given scheme registry and the given custom DNS lookup mechanism.
      Parameters:
      schemes - the scheme registry
      dnsResolver - the custom DNS lookup mechanism

  • Method Details

    • createConnection

      public OperatedClientConnection createConnection()
      Deprecated.
      Description copied from interface: ClientConnectionOperator
      Creates a new connection that can be operated.
      Specified by:
      createConnection in interface ClientConnectionOperator
      Returns:
      a new, unopened connection for use with this operator

    • getSchemeRegistry

      private SchemeRegistry getSchemeRegistry(org.apache.http.protocol.HttpContext context)
      Deprecated.

    • openConnection

      public void openConnection(OperatedClientConnection conn, org.apache.http.HttpHost target, InetAddress local, org.apache.http.protocol.HttpContext context, org.apache.http.params.HttpParams params) throws IOException
      Deprecated.
      Description copied from interface: ClientConnectionOperator
      Opens a connection to the given target host.
      Specified by:
      openConnection in interface ClientConnectionOperator
      Parameters:
      conn - the connection to open
      target - the target host to connect to
      local - the local address to route from, or null for the default
      context - the context for the connection
      params - the parameters for the connection
      Throws:
      IOException - in case of a problem

    • updateSecureConnection

      public void updateSecureConnection(OperatedClientConnection conn, org.apache.http.HttpHost target, org.apache.http.protocol.HttpContext context, org.apache.http.params.HttpParams params) throws IOException
      Deprecated.
      Description copied from interface: ClientConnectionOperator
      Updates a connection with a layered secure connection. The typical use of this method is to update a tunnelled plain connection (HTTP) to a secure TLS/SSL connection (HTTPS).
      Specified by:
      updateSecureConnection in interface ClientConnectionOperator
      Parameters:
      conn - the open connection to update
      target - the target host for the updated connection. The connection must already be open or tunnelled to the host and port, but the scheme of the target will be used to create a layered connection.
      context - the context for the connection
      params - the parameters for the updated connection
      Throws:
      IOException - in case of a problem

    • prepareSocket

      protected void prepareSocket(Socket sock, org.apache.http.protocol.HttpContext context, org.apache.http.params.HttpParams params) throws IOException
      Deprecated.
      Performs standard initializations on a newly created socket.
      Parameters:
      sock - the socket to prepare
      context - the context for the connection
      params - the parameters from which to prepare the socket
      Throws:
      IOException - in case of an IO problem

    • resolveHostname

      protected InetAddress[] resolveHostname(String host) throws UnknownHostException
      Deprecated.
      Resolves the given host name to an array of corresponding IP addresses, based on the configured name service on the provided DNS resolver. If one wasn't provided, the system configuration is used.
      Parameters:
      host - host name to resolve
      Returns:
      array of IP addresses
      Throws:
      UnknownHostException - if no IP address for the host could be determined.
      Since:
      4.1
      See Also: