net.saliman.spring.request.correlation.filter

Class RequestCorrelationFilter

java.lang.Object

net.saliman.spring.request.correlation.filter.RequestCorrelationFilter

All Implemented Interfaces:

javax.servlet.Filter

public class RequestCorrelationFilter
extends java.lang.Object
implements javax.servlet.Filter

The entry point for the request correlation. This filter intercepts any incoming request and in case that it does not contain the correlation header creates new identifier and stores it both as the request header and also as a attribute.

Constructor Summary

Constructors

Constructor and Description
RequestCorrelationFilter(CorrelationIdGenerator correlationIdGenerator, java.util.List<RequestCorrelationInterceptor> interceptors, RequestCorrelationProperties properties) Creates new instance of CorrelationIdGenerator class.

Method Summary

Modifier and Type	Method and Description
void	destroy()
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
void	init(javax.servlet.FilterConfig filterConfig)

Methods inherited from class java.lang.Object

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

Constructor Detail

RequestCorrelationFilter

public RequestCorrelationFilter(CorrelationIdGenerator correlationIdGenerator,
                                java.util.List<RequestCorrelationInterceptor> interceptors,
                                RequestCorrelationProperties properties)

Creates new instance of CorrelationIdGenerator class.

Parameters:

correlationIdGenerator - the request id generator

interceptors - the correlation interceptors

properties - the request properties

Throws:

java.lang.IllegalArgumentException - if requestIdGenerator is null or interceptors is null or properties is null

Method Detail

init

public void init(javax.servlet.FilterConfig filterConfig)
          throws javax.servlet.ServletException

Specified by:

init in interface javax.servlet.Filter

Throws:

javax.servlet.ServletException

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Filter

doFilter

public void doFilter(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     javax.servlet.FilterChain chain)
              throws java.io.IOException,
                     javax.servlet.ServletException

Specified by:

doFilter in interface javax.servlet.Filter

Throws:

java.io.IOException

javax.servlet.ServletException