Chapter 63. Apache CXF Provided Interceptors

63.1. Core Apache CXF Interceptors

Inbound

Table 63.1, “Core inbound interceptors” lists the core inbound interceptors that are added to all Apache CXF endpoints.

Table 63.1. Core inbound interceptors
Class	Phase	Description
`ServiceInvokerInterceptor`	`INVOKE`	Invokes the proper method on the service.

Outbound

The Apache CXF does not add any core interceptors to the outbound interceptor chain by default. The contents of an endpoint’s outbound interceptor chain depend on the features in use.

63.2. Front-Ends

JAX-WS

Table 63.2, “Inbound JAX-WS interceptors” lists the interceptors added to a JAX-WS endpoint’s inbound message chain.

Table 63.2. Inbound JAX-WS interceptors
Class	Phase	Description
`HolderInInterceptor`	`PRE_INVOKE`	Creates holder objects for any out or in/out parameters in the message.
`WrapperClassInInterceptor`	`POST_LOGICAL`	Unwraps the parts of a wrapped doc/literal message into the appropriate array of objects.
`LogicalHandlerInInterceptor`	`PRE_PROTOCOL`	Passes message processing to the JAX-WS logical handlers used by the endpoint. When the JAX-WS handlers complete, the message is passed along to the next interceptor on the inbound chain.
`SOAPHandlerInterceptor`	`PRE_PROTOCOL`	Passes message processing to the JAX-WS SOAP handlers used by the endpoint. When the SOAP handlers finish with the message, the message is passed along to the next interceptor in the chain.

Table 63.3, “Outbound JAX-WS interceptors” lists the interceptors added to a JAX-WS endpoint’s outbound message chain.

Table 63.3. Outbound JAX-WS interceptors
Class	Phase	Description
`HolderOutInterceptor`	`PRE_LOGICAL`	Removes the values of any out and in/out parameters from their holder objects and adds the values to the message’s parameter list.
`WebFaultOutInterceptor`	`PRE_PROTOCOL`	Processes outbound fault messages.
`WrapperClassOutInterceptor`	`PRE_LOGICAL`	Makes sure that wrapped doc/literal messages and rpc/literal messages are properly wrapped before being added to the message.
`LogicalHandlerOutInterceptor`	`PRE_MARSHAL`	Passes message processing to the JAX-WS logical handlers used by the endpoint. When the JAX-WS handlers complete, the message is passed along to the next interceptor on the outbound chain.
`SOAPHandlerInterceptor`	`PRE_PROTOCOL`	Passes message processing to the JAX-WS SOAP handlers used by the endpoint. When the SOAP handlers finish processing the message, it is passed along to the next interceptor in the chain.
`MessageSenderInterceptor`	`PREPARE_SEND`	Calls back to the Destination object to have it setup the output streams, headers, etc. to prepare the outgoing transport.

JAX-RS

Table 63.4, “Inbound JAX-RS interceptors” lists the interceptors added to a JAX-RS endpoint’s inbound message chain.

Table 63.4. Inbound JAX-RS interceptors
Class	Phase	Description
`JAXRSInInterceptor`	`PRE_STREAM`	Selects the root resource class, invokes any configured JAX-RS request filters, and determines the method to invoke on the root resource.

Important

The inbound chain for a JAX-RS endpoint skips straight to the ServiceInvokerInInterceptor interceptor. No other interceptors will be invoked after the JAXRSInInterceptor.

Table 63.5, “Outbound JAX-RS interceptors” lists the interceptors added to a JAX-RS endpoint’s outbound message chain.

Table 63.5. Outbound JAX-RS interceptors
Class	Phase	Description
`JAXRSOutInterceptor`	`MARSHAL`	Marshals the response into the proper format for transmission.

63.3. Message bindings

SOAP

Table 63.6, “Inbound SOAP interceptors” lists the interceptors added to a endpoint’s inbound message chain when using the SOAP Binding.

Table 63.6. Inbound SOAP interceptors
Class	Phase	Description
`CheckFaultInterceptor`	`POST_PROTOCOL`	Checks if the message is a fault message. If the message is a fault message, normal processing is aborted and fault processing is started.
`MustUnderstandInterceptor`	`PRE_PROTOCOL`	Processes the must understand headers.
`RPCInInterceptor`	`UNMARSHAL`	Unmarshals rpc/literal messages. If the message is bare, the message is passed to a `BareInInterceptor` object to deserialize the message parts.
`ReadsHeadersInterceptor`	`READ`	Parses the SOAP headers and stores them in the message object.
`SoapActionInInterceptor`	`READ`	Parses the SOAP action header and attempts to find a unique operation for the action.
`SoapHeaderInterceptor`	`UNMARSHAL`	Binds the SOAP headers that map to operation parameters to the appropriate objects.
`AttachmentInInterceptor`	`RECEIVE`	Parses the mime headers for mime boundaries, finds the root part and resets the input stream to it, and stores the other parts in a collection of `Attachment` objects.
`DocLiteralInInterceptor`	`UNMARSHAL`	Examines the first element in the SOAP body to determine the appropriate operation and calls the data binding to read in the data.
`StaxInInterceptor`	`POST_STREAM`	Creates an `XMLStreamReader` object from the message.
`URIMappingInterceptor`	`UNMARSHAL`	Handles the processing of HTTP GET methods.
`SwAInInterceptor`	`PRE_INVOKE`	Creates the required MIME handlers for binary SOAP attachments and adds the data to the parameter list.

Table 63.7, “Outbound SOAP interceptors” lists the interceptors added to a endpoint’s outbound message chain when using the SOAP Binding.

Table 63.7. Outbound SOAP interceptors
Class	Phase	Description
`RPCOutInterceptor`	`MARSHAL`	Marshals rpc style messages for transmission.
`SoapHeaderOutFilterInterceptor`	`PRE_LOGICAL`	Removes all SOAP headers that are marked as inbound only.
`SoapPreProtocolOutInterceptor`	`POST_LOGICAL`	Sets up the SOAP version and the SOAP action header.
`AttachmentOutInterceptor`	`PRE_STREAM`	Sets up the attachment marshalers and the mime stuff required to process any attachments that might be in the message.
`BareOutInterceptor`	`MARSHAL`	Writes the message parts.
`StaxOutInterceptor`	`PRE_STREAM`	Creates an `XMLStreamWriter` object from the message.
`WrappedOutInterceptor`	`MARSHAL`	Wraps the outbound message parameters.
`SoapOutInterceptor`	`WRITE`	Writes the `soap:envelope` element and the elements for the header blocks in the message. Also writes an empty `soap:body` element for the remaining interceptors to populate.
`SwAOutInterceptor`	`PRE_LOGICAL`	Removes any binary data that will be packaged as a SOAP attachment and stores it for later processing.

XML

Table 63.8, “Inbound XML interceptors” lists the interceptors added to a endpoint’s inbound message chain when using the XML Binding.

Table 63.8. Inbound XML interceptors
Class	Phase	Description
`AttachmentInInterceptor`	`RECEIVE`	Parses the mime headers for mime boundaries, finds the root part and resets the input stream to it, and then stores the other parts in a collection of `Attachment` objects.
`DocLiteralInInterceptor`	`UNMARSHAL`	Examines the first element in the message body to determine the appropriate operation and then calls the data binding to read in the data.
`StaxInInterceptor`	`POST_STREAM`	Creates an `XMLStreamReader` object from the message.
`URIMappingInterceptor`	`UNMARSHAL`	Handles the processing of HTTP GET methods.
`XMLMessageInInterceptor`	`UNMARSHAL`	Unmarshals the XML message.

Table 63.9, “Outbound XML interceptors” lists the interceptors added to a endpoint’s outbound message chain when using the XML Binding.

Table 63.9. Outbound XML interceptors
Class	Phase	Description
`StaxOutInterceptor`	`PRE_STREAM`	Creates an `XMLStreamWriter` objects from the message.
`WrappedOutInterceptor`	`MARSHAL`	Wraps the outbound message parameters.
`XMLMessageOutInterceptor`	`MARSHAL`	Marshals the message for transmission.

CORBA

Table 63.10, “Inbound CORBA interceptors” lists the interceptors added to a endpoint’s inbound message chain when using the CORBA Binding.

Table 63.10. Inbound CORBA interceptors
Class	Phase	Description
`CorbaStreamInInterceptor`	`PRE_STREAM`	Deserializes the CORBA message.
`BareInInterceptor`	`UNMARSHAL`	Deserializes the message parts.

Table 63.11, “Outbound CORBA interceptors” lists the interceptors added to a endpoint’s outbound message chain when using the CORBA Binding.

Table 63.11. Outbound CORBA interceptors
Class	Phase	Description
`CorbaStreamOutInterceptor`	`PRE_STREAM`	Serializes the message.
`BareOutInterceptor`	`MARSHAL`	Writes the message parts.
`CorbaStreamOutEndingInterceptor`	`USER_STREAM`	Creates a streamable object for the message and stores it in the message context.

63.4. Other features

Logging

Table 63.12, “Inbound logging interceptors” lists the interceptors added to a endpoint’s inbound message chain to support logging.

Table 63.12. Inbound logging interceptors
Class	Phase	Description
`LoggingInInterceptor`	`RECEIVE`	Writes the raw message data to the logging system.

Table 63.13, “Outbound logging interceptors” lists the interceptors added to a endpoint’s outbound message chain to support logging.

Table 63.13. Outbound logging interceptors
Class	Phase	Description
`LoggingOutInterceptor`	`PRE_STREAM`	Writes the outbound message to the logging system.

For more information about logging see Chapter 19, Apache CXF Logging.

WS-Addressing

Table 63.14, “Inbound WS-Addressing interceptors” lists the interceptors added to a endpoint’s inbound message chain when using WS-Addressing.

Table 63.14. Inbound WS-Addressing interceptors
Class	Phase	Description
`MAPCodec`	`PRE_PROTOCOL`	Decodes the message addressing properties.

Table 63.15, “Outbound WS-Addressing interceptors” lists the interceptors added to a endpoint’s outbound message chain when using WS-Addressing.

Table 63.15. Outbound WS-Addressing interceptors
Class	Phase	Description
`MAPAggregator`	`PRE_LOGICAL`	Aggregates the message addressing properties for a message.
`MAPCodec`	`PRE_PROTOCOL`	Encodes the message addressing properties.

For more information about WS-Addressing see Chapter 20, Deploying WS-Addressing.

WS-RM

Important

WS-RM relies on WS-Addressing so all of the WS-Addressing interceptors will also be added to the interceptor chains.

Table 63.16, “Inbound WS-RM interceptors” lists the interceptors added to a endpoint’s inbound message chain when using WS-RM.

Table 63.16. Inbound WS-RM interceptors
Class	Phase	Description
`RMInInterceptor`	`PRE_LOGICAL`	Handles the aggregation of message parts and acknowledgement messages.
`RMSoapInterceptor`	`PRE_PROTOCOL`	Encodes and decodes the WS-RM properties from messages.

Table 63.17, “Outbound WS-RM interceptors” lists the interceptors added to a endpoint’s outbound message chain when using WS-RM.

Table 63.17. Outbound WS-RM interceptors
Class	Phase	Description
`RMOutInterceptor`	`PRE_LOGICAL`	Handles the chunking of messages and the transmission of the chunks. Also handles the processing of acknowledgements and resend requests.
`RMSoapInterceptor`	`PRE_PROTOCOL`	Encodes and decodes the WS-RM properties from messages.

For more information about WS-RM see Chapter 21, Enabling Reliable Messaging.

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63.1. Core Apache CXF Interceptors

Inbound

Outbound

63.2. Front-Ends

JAX-WS

JAX-RS

63.3. Message bindings

SOAP

XML

CORBA

63.4. Other features

Logging

WS-Addressing

WS-RM

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