org.apache.cxf.transport.http.gzip
Class GZIPOutInterceptor

java.lang.Object
  org.apache.cxf.phase.AbstractPhaseInterceptor<Message>
      org.apache.cxf.transport.http.gzip.GZIPOutInterceptor

All Implemented Interfaces:

Interceptor<Message>, PhaseInterceptor<Message>

public class GZIPOutInterceptor
extends AbstractPhaseInterceptor<Message>

CXF interceptor that compresses outgoing messages using gzip and sets the HTTP Content-Encoding header appropriately. An instance of this class should be added as an out interceptor on clients that need to talk to a service that accepts gzip-encoded requests or on a service that wants to be able to return compressed responses. In server mode, the interceptor only compresses responses if the client indicated (via an Accept-Encoding header on the request) that it can understand them. To handle gzip-encoded input messages, see GZIPInInterceptor. This interceptor supports a compression threshold (default 1kB) - messages smaller than this threshold will not be compressed. To force compression of all messages, set the threshold to 0. This class was originally based on one of the CXF samples (configuration_interceptor).

Author:

Ian Roberts (i.roberts@dcs.shef.ac.uk)

Nested Class Summary

static class

GZIPOutInterceptor.UseGzip Enum giving the possible values for whether we should gzip a particular message.

Field Summary

static String	GZIP_ENCODING_KEY Key under which we store the name which should be used for the content-encoding of the outgoing message.
static String	ORIGINAL_OUTPUT_STREAM_KEY Key under which we store the original output stream on the message, for use by the ending interceptor.
static String	USE_GZIP_KEY Key under which we store an indication of whether compression is permitted or required, for use by the ending interceptor.

Constructor Summary

GZIPOutInterceptor()

Method Summary

int	getThreshold()
void	handleMessage(Message message) Intercepts a message.
void	setThreshold(int threshold)

Methods inherited from class org.apache.cxf.phase.AbstractPhaseInterceptor

addAfter, addAfter, addBefore, addBefore, getAfter, getBefore, getId, getPhase, handleFault, isGET, isRequestor, setAfter, setBefore

Methods inherited from class java.lang.Object

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

Field Detail

ORIGINAL_OUTPUT_STREAM_KEY

public static final String ORIGINAL_OUTPUT_STREAM_KEY

Key under which we store the original output stream on the message, for use by the ending interceptor.

USE_GZIP_KEY

public static final String USE_GZIP_KEY

Key under which we store an indication of whether compression is permitted or required, for use by the ending interceptor.

GZIP_ENCODING_KEY

public static final String GZIP_ENCODING_KEY

Key under which we store the name which should be used for the content-encoding of the outgoing message. Typically "gzip" but may be "x-gzip" if we are processing a response message and this is the name given by the client in Accept-Encoding.

Constructor Detail

GZIPOutInterceptor

public GZIPOutInterceptor()

Method Detail

setThreshold

public void setThreshold(int threshold)

getThreshold

public int getThreshold()

handleMessage

public void handleMessage(Message message)
                   throws Fault

Description copied from interface: Interceptor

Intercepts a message. Interceptors should NOT invoke handleMessage or handleFault on the next interceptor - the interceptor chain will take care of this.

Throws:

Fault