org.apache.http.impl.conn
Class DefaultClientConnectionOperator

java.lang.Object
  org.apache.http.impl.conn.DefaultClientConnectionOperator

All Implemented Interfaces:

ClientConnectionOperator

Deprecated. (4.3) use PoolingHttpClientConnectionManager.

@Deprecated
@Contract(threading=SAFE_CONDITIONAL)
public class DefaultClientConnectionOperator
extends Object
implements ClientConnectionOperator

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 Summary

protected DnsResolver	dnsResolver Deprecated. the custom-configured DNS lookup mechanism.
protected SchemeRegistry	schemeRegistry Deprecated. The scheme registry for looking up socket factories.

Constructor Summary

DefaultClientConnectionOperator(SchemeRegistry schemes)
Deprecated. Creates a new client connection operator for the given scheme registry.

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

Method Summary

OperatedClientConnection	createConnection() Deprecated. Creates a new connection that can be operated.
void	openConnection(OperatedClientConnection conn, org.apache.http.HttpHost target, InetAddress local, org.apache.http.protocol.HttpContext context, org.apache.http.params.HttpParams params) Deprecated. Opens a connection to the given target host.
protected void	prepareSocket(Socket sock, org.apache.http.protocol.HttpContext context, org.apache.http.params.HttpParams params) Deprecated. Performs standard initializations on a newly created socket.
protected InetAddress[]	resolveHostname(String host) Deprecated. Resolves the given host name to an array of corresponding IP addresses, based on the configured name service on the provided DNS resolver.
void	updateSecureConnection(OperatedClientConnection conn, org.apache.http.HttpHost target, org.apache.http.protocol.HttpContext context, org.apache.http.params.HttpParams params) Deprecated. Updates a connection with a layered secure connection.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

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 Detail

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 Detail

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

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:

DnsResolver, SystemDefaultDnsResolver