com.github.mkopylec.charon.core.http

Class ReverseProxyFilter

java.lang.Object

org.springframework.web.filter.GenericFilterBean

org.springframework.web.filter.OncePerRequestFilter

com.github.mkopylec.charon.core.http.ReverseProxyFilter

All Implemented Interfaces:

javax.servlet.Filter, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.InitializingBean, org.springframework.context.EnvironmentAware, org.springframework.web.context.ServletContextAware

public class ReverseProxyFilter
extends org.springframework.web.filter.OncePerRequestFilter

Field Summary

Fields

Modifier and Type	Field and Description
protected CharonProperties	charon
protected RequestDataExtractor	extractor
protected LoadBalancer	loadBalancer
protected MappingsProvider	mappingsProvider
protected com.codahale.metrics.MetricRegistry	metricRegistry
protected org.springframework.web.client.RestOperations	restOperations
protected org.springframework.retry.RetryOperations	retryOperations
protected org.springframework.boot.autoconfigure.web.ServerProperties	server
protected static java.lang.String	X_FORWARDED_FOR_HEADER
protected static java.lang.String	X_FORWARDED_HOST_HEADER
protected static java.lang.String	X_FORWARDED_PORT_HEADER
protected static java.lang.String	X_FORWARDED_PROTO_HEADER

Fields inherited from class org.springframework.web.filter.OncePerRequestFilter

ALREADY_FILTERED_SUFFIX

Fields inherited from class org.springframework.web.filter.GenericFilterBean

logger

Constructor Summary

Constructors

Constructor and Description
ReverseProxyFilter(org.springframework.boot.autoconfigure.web.ServerProperties server, CharonProperties charon, org.springframework.web.client.RestOperations restOperations, org.springframework.retry.RetryOperations retryOperations, RequestDataExtractor extractor, MappingsProvider mappingsProvider, LoadBalancer loadBalancer, com.codahale.metrics.MetricRegistry metricRegistry)

Method Summary

Modifier and Type	Method and Description
protected void	addForwardHeaders(javax.servlet.http.HttpServletRequest request, org.springframework.http.HttpHeaders headers)
protected java.lang.String	concatContextAndMappingPaths(CharonProperties.Mapping mapping)
protected java.net.URI	createDestinationUrl(java.lang.String uri, CharonProperties.Mapping mapping)
protected void	doFilterInternal(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, javax.servlet.FilterChain filterChain)
protected void	processResponse(javax.servlet.http.HttpServletResponse response, org.springframework.http.ResponseEntity<byte[]> responseEntity)
protected ForwardDestination	resolveForwardDestination(java.lang.String uri)
protected org.springframework.http.ResponseEntity<byte[]>	sendRequest(org.springframework.http.RequestEntity<byte[]> requestEntity, java.lang.String mappingMetricsName)
protected boolean	shouldUpdateMappingsAfterError()
protected void	stopTimerContext(com.codahale.metrics.Timer.Context context)

Methods inherited from class org.springframework.web.filter.OncePerRequestFilter

doFilter, getAlreadyFilteredAttributeName, isAsyncDispatch, isAsyncStarted, shouldNotFilter, shouldNotFilterAsyncDispatch, shouldNotFilterErrorDispatch

Methods inherited from class org.springframework.web.filter.GenericFilterBean

addRequiredProperty, afterPropertiesSet, destroy, getFilterConfig, getFilterName, getServletContext, init, initBeanWrapper, initFilterBean, setBeanName, setEnvironment, setServletContext

Methods inherited from class java.lang.Object

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

Field Detail

X_FORWARDED_FOR_HEADER

protected static final java.lang.String X_FORWARDED_FOR_HEADER

See Also:

Constant Field Values

X_FORWARDED_PROTO_HEADER

protected static final java.lang.String X_FORWARDED_PROTO_HEADER

See Also:

Constant Field Values

X_FORWARDED_HOST_HEADER

protected static final java.lang.String X_FORWARDED_HOST_HEADER

See Also:

Constant Field Values

X_FORWARDED_PORT_HEADER

protected static final java.lang.String X_FORWARDED_PORT_HEADER

See Also:

Constant Field Values

server

protected final org.springframework.boot.autoconfigure.web.ServerProperties server

charon

protected final CharonProperties charon

restOperations

protected final org.springframework.web.client.RestOperations restOperations

retryOperations

protected final org.springframework.retry.RetryOperations retryOperations

extractor

protected final RequestDataExtractor extractor

mappingsProvider

protected final MappingsProvider mappingsProvider

loadBalancer

protected final LoadBalancer loadBalancer

metricRegistry

protected final com.codahale.metrics.MetricRegistry metricRegistry

Constructor Detail

ReverseProxyFilter

public ReverseProxyFilter(org.springframework.boot.autoconfigure.web.ServerProperties server,
                          CharonProperties charon,
                          org.springframework.web.client.RestOperations restOperations,
                          org.springframework.retry.RetryOperations retryOperations,
                          RequestDataExtractor extractor,
                          MappingsProvider mappingsProvider,
                          LoadBalancer loadBalancer,
                          com.codahale.metrics.MetricRegistry metricRegistry)

Method Detail

doFilterInternal

protected void doFilterInternal(javax.servlet.http.HttpServletRequest request,
                                javax.servlet.http.HttpServletResponse response,
                                javax.servlet.FilterChain filterChain)
                         throws javax.servlet.ServletException,
                                java.io.IOException

Specified by:

doFilterInternal in class org.springframework.web.filter.OncePerRequestFilter

Throws:

javax.servlet.ServletException

java.io.IOException

resolveForwardDestination

protected ForwardDestination resolveForwardDestination(java.lang.String uri)

createDestinationUrl

protected java.net.URI createDestinationUrl(java.lang.String uri,
                                            CharonProperties.Mapping mapping)

addForwardHeaders

protected void addForwardHeaders(javax.servlet.http.HttpServletRequest request,
                                 org.springframework.http.HttpHeaders headers)

sendRequest

protected org.springframework.http.ResponseEntity<byte[]> sendRequest(org.springframework.http.RequestEntity<byte[]> requestEntity,
                                                                      java.lang.String mappingMetricsName)

processResponse

protected void processResponse(javax.servlet.http.HttpServletResponse response,
                               org.springframework.http.ResponseEntity<byte[]> responseEntity)

concatContextAndMappingPaths

protected java.lang.String concatContextAndMappingPaths(CharonProperties.Mapping mapping)

shouldUpdateMappingsAfterError

protected boolean shouldUpdateMappingsAfterError()

stopTimerContext

protected void stopTimerContext(com.codahale.metrics.Timer.Context context)