org.apache.camel.http.common

Interface HttpBinding

All Known Implementing Classes:

DefaultHttpBinding

public interface HttpBinding

A pluggable strategy for configuring the http binding so reading request and writing response can be customized using the Java Servlet API.

This is also used by the camel-jetty component in the JettyHttpConsumer class.

Method Summary

Modifier and Type	Method and Description
void	doWriteExceptionResponse(Throwable exception, javax.servlet.http.HttpServletResponse response) Strategy method that writes the response to the http response stream when an exception occurred
void	doWriteFaultResponse(org.apache.camel.Message message, javax.servlet.http.HttpServletResponse response, org.apache.camel.Exchange exchange) Strategy method that writes the response to the http response stream for a fault message
void	doWriteResponse(org.apache.camel.Message message, javax.servlet.http.HttpServletResponse response, org.apache.camel.Exchange exchange) Strategy method that writes the response to the http response stream for an OUT message
org.apache.camel.spi.HeaderFilterStrategy	getHeaderFilterStrategy() Gets the header filter strategy
boolean	isAllowJavaSerializedObject() Whether to allow java serialization when a request uses context-type=application/x-java-serialized-object This is by default turned off.
boolean	isEagerCheckContentAvailable() Whether to eager check whether the HTTP requests has content if the content-length header is 0 or not present.
boolean	isMapHttpMessageBody() Whether to allow Exchange Body HTTP mapping
boolean	isMapHttpMessageFormUrlEncodedBody() Whether to allow Exchange Form URL Encoded Body HTTP mapping
boolean	isMapHttpMessageHeaders() Whether to allow Exchange Headers HTTP mapping
boolean	isTransferException() If enabled and an Exchange failed processing on the consumer side, and if the caused Exception was send back serialized in the response as a application/x-java-serialized-object content type (for example using Jetty or Servlet Camel components).
boolean	isUseReaderForPayload() Should reader by used instead of input stream.
Object	parseBody(HttpMessage httpMessage) Parses the body from a HttpMessage
void	readRequest(javax.servlet.http.HttpServletRequest request, HttpMessage message) Strategy to read the given request and bindings it to the given message.
void	setAllowJavaSerializedObject(boolean allowJavaSerializedObject) Whether to allow java serialization when a request uses context-type=application/x-java-serialized-object This is by default turned off.
void	setEagerCheckContentAvailable(boolean eagerCheckContentAvailable) Whether to eager check whether the HTTP requests has content if the content-length header is 0 or not present.
void	setHeaderFilterStrategy(org.apache.camel.spi.HeaderFilterStrategy headerFilterStrategy) Sets the header filter strategy to use.
void	setMapHttpMessageBody(boolean mapHttpMessageBody) Whether to allow Exchange Body HTTP mapping This is by default turned on.
void	setMapHttpMessageFormUrlEncodedBody(boolean mapHttpMessageFormUrlEncodedBody) Whether to allow Exchange Form URL Encoded Body HTTP mapping This is by default turned on.
void	setMapHttpMessageHeaders(boolean mapHttpMessageHeaders) Whether to allow Exchange Headers HTTP mapping This is by default turned on.
void	setTransferException(boolean transferException) If enabled and an Exchange failed processing on the consumer side, and if the caused Exception was send back serialized in the response as a application/x-java-serialized-object content type (for example using Jetty or Servlet Camel components).
void	setUseReaderForPayload(boolean useReaderForPayload) Should the ServletRequest.getReader() be exposed as the payload of input messages in the Camel Message.getBody() or not.
void	writeResponse(org.apache.camel.Exchange exchange, javax.servlet.http.HttpServletResponse response) Writes the exchange to the servlet response.

Method Detail

readRequest

void readRequest(javax.servlet.http.HttpServletRequest request,
                 HttpMessage message)

Strategy to read the given request and bindings it to the given message.

Parameters:

request - the request

message - the message to populate with data from request

parseBody

Object parseBody(HttpMessage httpMessage)
          throws IOException

Parses the body from a HttpMessage

Parameters:

httpMessage - the http message

Returns:

the parsed body returned as either a InputStream or a Reader depending on the setUseReaderForPayload(boolean) property.

Throws:

IOException - can be thrown

writeResponse

void writeResponse(org.apache.camel.Exchange exchange,
                   javax.servlet.http.HttpServletResponse response)
            throws IOException

Writes the exchange to the servlet response.

Default implementation will delegate to the following methods depending on the status of the exchange

• doWriteResponse - processing returns a OUT message
• doWriteFaultResponse - processing returns a fault message
• doWriteResponse - processing returns an exception and status code 500

Parameters:

exchange - the exchange

response - the http response

Throws:

IOException - can be thrown from http response

doWriteExceptionResponse

void doWriteExceptionResponse(Throwable exception,
                              javax.servlet.http.HttpServletResponse response)
                       throws IOException

Strategy method that writes the response to the http response stream when an exception occurred

Parameters:

exception - the exception occurred

response - the http response

Throws:

IOException - can be thrown from http response

doWriteFaultResponse

void doWriteFaultResponse(org.apache.camel.Message message,
                          javax.servlet.http.HttpServletResponse response,
                          org.apache.camel.Exchange exchange)
                   throws IOException

Strategy method that writes the response to the http response stream for a fault message

Parameters:

message - the fault message

response - the http response

exchange - the exchange to provide context for header filtering

Throws:

IOException - can be thrown from http response

doWriteResponse

void doWriteResponse(org.apache.camel.Message message,
                     javax.servlet.http.HttpServletResponse response,
                     org.apache.camel.Exchange exchange)
              throws IOException

Strategy method that writes the response to the http response stream for an OUT message

Parameters:

message - the OUT message

response - the http response

exchange - the exchange to provide context for header filtering

Throws:

IOException - can be thrown from http response

isUseReaderForPayload

boolean isUseReaderForPayload()

Should reader by used instead of input stream.

Returns:

true if reader should be used

See Also:

for more details

setUseReaderForPayload

void setUseReaderForPayload(boolean useReaderForPayload)

Should the ServletRequest.getReader() be exposed as the payload of input messages in the Camel Message.getBody() or not. If false then the ServletRequest.getInputStream() will be exposed.

Is default false.

Parameters:

useReaderForPayload - whether to use reader or not

isTransferException

boolean isTransferException()

If enabled and an Exchange failed processing on the consumer side, and if the caused Exception was send back serialized in the response as a application/x-java-serialized-object content type (for example using Jetty or Servlet Camel components). On the producer side the exception will be deserialized and thrown as is, instead of the HttpOperationFailedException. The caused exception is required to be serialized.

This is by default turned off. If you enable this then be aware that Java will deserialize the incoming data from the request to Java and that can be a potential security risk.

isAllowJavaSerializedObject

boolean isAllowJavaSerializedObject()

Whether to allow java serialization when a request uses context-type=application/x-java-serialized-object

This is by default turned off. If you enable this then be aware that Java will deserialize the incoming data from the request to Java and that can be a potential security risk.

isEagerCheckContentAvailable

boolean isEagerCheckContentAvailable()

Whether to eager check whether the HTTP requests has content if the content-length header is 0 or not present. This can be turned on in case HTTP clients do not send streamed data.

isMapHttpMessageBody

boolean isMapHttpMessageBody()

Whether to allow Exchange Body HTTP mapping

isMapHttpMessageHeaders

boolean isMapHttpMessageHeaders()

Whether to allow Exchange Headers HTTP mapping

isMapHttpMessageFormUrlEncodedBody

boolean isMapHttpMessageFormUrlEncodedBody()

Whether to allow Exchange Form URL Encoded Body HTTP mapping

setEagerCheckContentAvailable

void setEagerCheckContentAvailable(boolean eagerCheckContentAvailable)

Whether to eager check whether the HTTP requests has content if the content-length header is 0 or not present. This can be turned on in case HTTP clients do not send streamed data.

setTransferException

void setTransferException(boolean transferException)

If enabled and an Exchange failed processing on the consumer side, and if the caused Exception was send back serialized in the response as a application/x-java-serialized-object content type (for example using Jetty or Servlet Camel components). On the producer side the exception will be deserialized and thrown as is, instead of the HttpOperationFailedException. The caused exception is required to be serialized.

This is by default turned off. If you enable this then be aware that Java will deserialize the incoming data from the request to Java and that can be a potential security risk.

setAllowJavaSerializedObject

void setAllowJavaSerializedObject(boolean allowJavaSerializedObject)

Whether to allow java serialization when a request uses context-type=application/x-java-serialized-object

This is by default turned off. If you enable this then be aware that Java will deserialize the incoming data from the request to Java and that can be a potential security risk.

Parameters:

allowJavaSerializedObject - true to allow serializing java objects

getHeaderFilterStrategy

org.apache.camel.spi.HeaderFilterStrategy getHeaderFilterStrategy()

Gets the header filter strategy

Returns:

the strategy

setHeaderFilterStrategy

void setHeaderFilterStrategy(org.apache.camel.spi.HeaderFilterStrategy headerFilterStrategy)

Sets the header filter strategy to use.

Will default use HttpHeaderFilterStrategy

Parameters:

headerFilterStrategy - the custom strategy

setMapHttpMessageBody

void setMapHttpMessageBody(boolean mapHttpMessageBody)

Whether to allow Exchange Body HTTP mapping

This is by default turned on. If you disable this then be aware that the Exchange body won't be mapped to HTTP

setMapHttpMessageHeaders

void setMapHttpMessageHeaders(boolean mapHttpMessageHeaders)

Whether to allow Exchange Headers HTTP mapping

This is by default turned on. If you disable this then be aware that the Exchange headers won't be mapped to HTTP

setMapHttpMessageFormUrlEncodedBody

void setMapHttpMessageFormUrlEncodedBody(boolean mapHttpMessageFormUrlEncodedBody)

Whether to allow Exchange Form URL Encoded Body HTTP mapping

This is by default turned on. If you disable this then be aware that the Exchange Form URL Encoded Body won't be mapped to HTTP