Class SingleClientConnManager

java.lang.Object
org.apache.http.impl.conn.SingleClientConnManager
All Implemented Interfaces:
ClientConnectionManager

@Contract(threading=SAFE) @Deprecated public class SingleClientConnManager extends Object implements ClientConnectionManager
Deprecated.
A connection manager for a single connection. This connection manager maintains only one active connection at a time. Even though this class is thread-safe it ought to be used by one execution thread only.

SingleClientConnManager will make an effort to reuse the connection for subsequent requests with the same route. It will, however, close the existing connection and open it for the given route, if the route of the persistent connection does not match that of the connection request. If the connection has been already been allocated IllegalStateException is thrown.

Since:
4.0
  • Field Details

    • MISUSE_MESSAGE

      public static final String MISUSE_MESSAGE
      Deprecated.
      The message to be logged on multiple allocation.
      See Also:
    • schemeRegistry

      protected final SchemeRegistry schemeRegistry
      Deprecated.
      The schemes supported by this connection manager.
    • connOperator

      protected final ClientConnectionOperator connOperator
      Deprecated.
      The operator for opening and updating connections.
    • alwaysShutDown

      protected final boolean alwaysShutDown
      Deprecated.
      Whether the connection should be shut down on release.
    • uniquePoolEntry

      protected volatile SingleClientConnManager.PoolEntry uniquePoolEntry
      Deprecated.
      The one and only entry in this pool.
    • managedConn

      protected volatile SingleClientConnManager.ConnAdapter managedConn
      Deprecated.
      The currently issued managed connection, if any.
    • lastReleaseTime

      protected volatile long lastReleaseTime
      Deprecated.
      The time of the last connection release, or -1.
    • connectionExpiresTime

      protected volatile long connectionExpiresTime
      Deprecated.
      The time the last released connection expires and shouldn't be reused.
    • isShutDown

      protected volatile boolean isShutDown
      Deprecated.
      Indicates whether this connection manager is shut down.
  • Constructor Details

    • SingleClientConnManager

      @Deprecated public SingleClientConnManager(org.apache.http.params.HttpParams params, SchemeRegistry schreg)
      Creates a new simple connection manager.
      Parameters:
      params - the parameters for this manager
      schreg - the scheme registry
    • SingleClientConnManager

      public SingleClientConnManager(SchemeRegistry schreg)
      Deprecated.
      Creates a new simple connection manager.
      Parameters:
      schreg - the scheme registry
    • SingleClientConnManager

      public SingleClientConnManager()
      Deprecated.
      Since:
      4.1
  • Method Details

    • finalize

      protected void finalize() throws Throwable
      Deprecated.
      Overrides:
      finalize in class Object
      Throws:
      Throwable
    • getSchemeRegistry

      public SchemeRegistry getSchemeRegistry()
      Deprecated.
      Description copied from interface: ClientConnectionManager
      Obtains the scheme registry used by this manager.
      Specified by:
      getSchemeRegistry in interface ClientConnectionManager
      Returns:
      the scheme registry, never null
    • createConnectionOperator

      protected ClientConnectionOperator createConnectionOperator(SchemeRegistry schreg)
      Deprecated.
      Hook for creating the connection operator. It is called by the constructor. Derived classes can override this method to change the instantiation of the operator. The default implementation here instantiates DefaultClientConnectionOperator.
      Parameters:
      schreg - the scheme registry to use, or null
      Returns:
      the connection operator to use
    • assertStillUp

      protected final void assertStillUp() throws IllegalStateException
      Deprecated.
      Asserts that this manager is not shut down.
      Throws:
      IllegalStateException - if this manager is shut down
    • requestConnection

      public final ClientConnectionRequest requestConnection(HttpRoute route, Object state)
      Deprecated.
      Description copied from interface: ClientConnectionManager
      Returns a new ClientConnectionRequest, from which a ManagedClientConnection can be obtained or the request can be aborted.
      Specified by:
      requestConnection in interface ClientConnectionManager
    • getConnection

      public ManagedClientConnection getConnection(HttpRoute route, Object state)
      Deprecated.
      Obtains a connection.
      Parameters:
      route - where the connection should point to
      Returns:
      a connection that can be used to communicate along the given route
    • releaseConnection

      public void releaseConnection(ManagedClientConnection conn, long validDuration, TimeUnit timeUnit)
      Deprecated.
      Description copied from interface: ClientConnectionManager
      Releases a connection for use by others. You may optionally specify how long the connection is valid to be reused. Values <= 0 are considered to be valid forever. If the connection is not marked as reusable, the connection will not be reused regardless of the valid duration. If the connection has been released before, the call will be ignored.
      Specified by:
      releaseConnection in interface ClientConnectionManager
      Parameters:
      conn - the connection to release
      validDuration - the duration of time this connection is valid for reuse
      timeUnit - the unit of time validDuration is measured in
      See Also:
    • closeExpiredConnections

      public void closeExpiredConnections()
      Deprecated.
      Description copied from interface: ClientConnectionManager
      Closes all expired connections in the pool. Open connections in the pool that have not been used for the timespan defined when the connection was released will be closed. Currently allocated connections are not subject to this method. Times will be checked with milliseconds precision.
      Specified by:
      closeExpiredConnections in interface ClientConnectionManager
    • closeIdleConnections

      public void closeIdleConnections(long idletime, TimeUnit timeUnit)
      Deprecated.
      Description copied from interface: ClientConnectionManager
      Closes idle connections in the pool. Open connections in the pool that have not been used for the timespan given by the argument will be closed. Currently allocated connections are not subject to this method. Times will be checked with milliseconds precision All expired connections will also be closed.
      Specified by:
      closeIdleConnections in interface ClientConnectionManager
      Parameters:
      idletime - the idle time of connections to be closed
      timeUnit - the unit for the idletime
      See Also:
    • shutdown

      public void shutdown()
      Deprecated.
      Description copied from interface: ClientConnectionManager
      Shuts down this connection manager and releases allocated resources. This includes closing all connections, whether they are currently used or not.
      Specified by:
      shutdown in interface ClientConnectionManager
    • revokeConnection

      protected void revokeConnection()
      Deprecated.