Package org.springframework.ws.client.support.interceptor

Interface ClientInterceptor

All Known Implementing Classes:

AbstractValidatingInterceptor, AbstractWsSecurityInterceptor, ClientInterceptorAdapter, PayloadValidatingInterceptor, Wss4jSecurityInterceptor

public interface ClientInterceptor

Workflow interface that allows for customized client-side message interception. Applications can register any number of existing or custom interceptors on a WebServiceTemplate, to add common pre- and postprocessing behavior without needing to modify payload handling code.

A ClientInterceptor gets called after payload creation (using WebServiceTemplate.marshalSendAndReceive(Object) or similar methods, and after callback invocation, but before the message is sent over the WebServiceConnection. This mechanism can be used for a large field of preprocessing aspects, e.g. for authorization checks, or message header checks. Its main purpose is to allow for factoring out meta-data (i.e. SoapHeader) related code.

Client interceptors are defined on a WebServiceTemplate, using the interceptors property.

Since:

1.5.0

Author:

Giovanni Cuccu, Arjen Poutsma

See Also:

• WebServiceTemplate.setInterceptors(ClientInterceptor[])

Method Summary

Modifier and Type	Method	Description
void	afterCompletion(MessageContext messageContext, Exception ex)	Callback after completion of request and response (fault) processing.
boolean	handleFault(MessageContext messageContext)	Processes the incoming response fault.
boolean	handleRequest(MessageContext messageContext)	Processes the outgoing request message.
boolean	handleResponse(MessageContext messageContext)	Processes the incoming response message.

Method Details

handleRequest

boolean handleRequest(MessageContext messageContext)
               throws WebServiceClientException

Processes the outgoing request message. Called after payload creation and callback invocation, but before the message is sent.

Parameters:

messageContext - contains the outgoing request message

Returns:

true to continue processing of the request interceptors; false to indicate blocking of the request endpoint chain

Throws:

WebServiceClientException - in case of errors

See Also:

• MessageContext.getRequest()

handleResponse

boolean handleResponse(MessageContext messageContext)
                throws WebServiceClientException

Processes the incoming response message. Called for non-fault response messages before payload handling in the WebServiceTemplate.

Note: Will only be called if this interceptor's handleRequest(org.springframework.ws.context.MessageContext) method has successfully completed.

Parameters:

messageContext - contains the outgoing request message

Returns:

true to continue processing of the request interceptors; false to indicate blocking of the response endpoint chain

Throws:

WebServiceClientException - in case of errors

See Also:

• MessageContext.getResponse()

handleFault

boolean handleFault(MessageContext messageContext)
             throws WebServiceClientException

Processes the incoming response fault. Called for response fault messages before payload handling in the WebServiceTemplate.

Note: Will only be called if this interceptor's handleRequest(org.springframework.ws.context.MessageContext) method has successfully completed.

Parameters:

messageContext - contains the outgoing request message

Returns:

true to continue processing of the request interceptors; false to indicate blocking of the request endpoint chain

Throws:

WebServiceClientException - in case of errors

See Also:

• MessageContext.getResponse()
• FaultAwareWebServiceMessage.hasFault()

afterCompletion

void afterCompletion(MessageContext messageContext,
 Exception ex)
              throws WebServiceClientException

Callback after completion of request and response (fault) processing. Will be called on any outcome, thus allows for proper resource cleanup.

Note: Will only be called if this interceptor's handleRequest(org.springframework.ws.context.MessageContext) method has successfully completed.

Parameters:

messageContext - contains both request and response messages, the response should contains a Fault

ex - exception thrown on handler execution, if any

Throws:

WebServiceClientException - in case of errors

Since:

2.2