org.restlet

Class Client

java.lang.Object

org.restlet.Restlet

org.restlet.Connector

org.restlet.Client

All Implemented Interfaces:

Uniform

public class Client
extends Connector

Connector acting as a generic client. It internally uses one of the available connector helpers registered with the Restlet engine.

Concurrency note: instances of this class or its subclasses can be invoked by several threads at the same time and therefore must be thread-safe. You should be especially careful when storing state in member variables.

For advanced cases, it is possible to obtained the wrapped RestletHelper instance that is used by this client to handle the calls via the "org.restlet.engine.helper" attribute stored in the Context object.

Author:

Jerome Louvel

Constructor Summary

Constructors

Constructor and Description
Client(Context context, java.util.List<Protocol> protocols) Constructor.
Client(Context context, java.util.List<Protocol> protocols, java.lang.String helperClass) Constructor.
Client(Context context, Protocol protocol) Constructor.
Client(java.util.List<Protocol> protocols) Constructor.
Client(Protocol protocol) Constructor.
Client(java.lang.String protocolName) Constructor.

Method Summary

Modifier and Type	Method and Description
void	handle(Request request, Response response) Handles a call.
boolean	isAvailable() Indicates the underlying connector helper is available.
void	start() Starts the Restlet.
void	stop() Stops the Restlet.

Methods inherited from class org.restlet.Connector

getProtocols, setProtocols

Methods inherited from class org.restlet.Restlet

createFinder, finalize, getApplication, getAuthor, getContext, getDescription, getFinderClass, getLogger, getName, getOwner, handle, handle, handle, isStarted, isStopped, setAuthor, setContext, setDescription, setFinderClass, setName, setOwner

Methods inherited from class java.lang.Object

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

Constructor Detail

Client

public Client(Context context,
              java.util.List<Protocol> protocols)

Constructor.

Parameters:

context - The context.

protocols - The connector protocols.

Client

public Client(Context context,
              java.util.List<Protocol> protocols,
              java.lang.String helperClass)

Constructor.

Parameters:

context - The context.

protocols - The connector protocols.

helperClass - Optional helper class name.

Client

public Client(Context context,
              Protocol protocol)

Constructor.

Parameters:

context - The context.

protocol - The connector protocol.

Client

public Client(java.util.List<Protocol> protocols)

Constructor.

Parameters:

protocols - The connector protocols.

Client

public Client(Protocol protocol)

Constructor.

Parameters:

protocol - The connector protocol.

Client

public Client(java.lang.String protocolName)

Constructor.

Parameters:

protocolName - The connector protocol.

Method Detail

handle

public void handle(Request request,
                   Response response)

Description copied from class: Restlet

Handles a call. The default behavior is to initialize the Restlet by setting the current context using the Context.setCurrent(Context) method and by attempting to start it, unless it was already started. If an exception is thrown during the start action, then the response status is set to Status.SERVER_ERROR_INTERNAL.

Subclasses overriding this method should make sure that they call super.handle(request, response) before adding their own logic.

Specified by:

handle in interface Uniform

Overrides:

handle in class Restlet

Parameters:

request - The request to handle.

response - The response to update.

isAvailable

public boolean isAvailable()

Indicates the underlying connector helper is available.

Specified by:

isAvailable in class Connector

Returns:

True if the underlying connector helper is available.

start

public void start()
           throws java.lang.Exception

Description copied from class: Restlet

Starts the Restlet. By default its only sets "started" internal property to true. WARNING: this method must be called at the end of the starting process by subclasses otherwise concurrent threads could enter into the call handling logic too early.

Overrides:

start in class Restlet

Throws:

java.lang.Exception

stop

public void stop()
          throws java.lang.Exception

Description copied from class: Restlet

Stops the Restlet. By default its only sets "started" internal property to false. WARNING: this method must be called at the beginning of the stopping process by subclasses otherwise concurrent threads could continue to (improperly) handle calls.

Overrides:

stop in class Restlet

Throws:

java.lang.Exception