com.netflix.zuul.context

Class RequestContext

java.lang.Object

java.util.AbstractMap<K,V>

java.util.concurrent.ConcurrentHashMap<java.lang.String,java.lang.Object>

com.netflix.zuul.context.RequestContext

All Implemented Interfaces:

java.io.Serializable, java.util.concurrent.ConcurrentMap<java.lang.String,java.lang.Object>, java.util.Map<java.lang.String,java.lang.Object>

public class RequestContext
extends java.util.concurrent.ConcurrentHashMap<java.lang.String,java.lang.Object>

The Request Context holds request, response, state information and data for ZuulFilters to access and share. The RequestContext lives for the duration of the request and is ThreadLocal. extensions of RequestContext can be substituted by setting the contextClass. Most methods here are convenience wrapper methods; the RequestContext is an extension of a ConcurrentHashMap

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

java.util.Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.lang.Class<? extends RequestContext>	contextClass
protected static java.lang.ThreadLocal<? extends RequestContext>	threadLocal

Constructor Summary

Constructors

Constructor and Description
RequestContext()

Method Summary

Methods

Modifier and Type	Method and Description
void	addFilterExecutionSummary(java.lang.String name, java.lang.String status, long time) appends filter name and status to the filter execution history for the current request
void	addOriginResponseHeader(java.lang.String name, java.lang.String value) adds a header to the origin response headers
void	addZuulRequestHeader(java.lang.String name, java.lang.String value) add a header to be sent to the origin
void	addZuulResponseHeader(java.lang.String name, java.lang.String value) add a header to be sent to the response
RequestContext	copy() Mkaes a copy of the RequestContext.
boolean	debugRequest() gets debugRequest
boolean	debugRequestHeadersOnly()
boolean	debugRouting()
boolean	getBoolean(java.lang.String key) Convenience method to return a boolean value for a given key
boolean	getBoolean(java.lang.String key, boolean defaultResponse) Convenience method to return a boolean value for a given key
static RequestContext	getCurrentContext() Get the current RequestContext
java.lang.StringBuilder	getFilterExecutionSummary()
java.lang.Integer	getOriginContentLength() returns the content-length of the origin response
java.util.List<com.netflix.util.Pair<java.lang.String,java.lang.String>>	getOriginResponseHeaders() the Origin response headers
javax.servlet.http.HttpServletRequest	getRequest()
java.util.Map<java.lang.String,java.util.List<java.lang.String>>	getRequestQueryParams()
javax.servlet.http.HttpServletResponse	getResponse()
java.lang.String	getResponseBody()
java.io.InputStream	getResponseDataStream()
boolean	getResponseGZipped()
int	getResponseStatusCode() returns the response status code.
java.net.URL	getRouteHost()
java.lang.Throwable	getThrowable() returns a set throwable
boolean	getZuulEngineRan() true if zuulEngineRan
java.util.Map<java.lang.String,java.lang.String>	getZuulRequestHeaders() return the list of requestHeaders to be sent to the origin
java.util.List<com.netflix.util.Pair<java.lang.String,java.lang.String>>	getZuulResponseHeaders() returns the current response header list
boolean	isChunkedRequestBody()
boolean	isGzipRequested()
void	removeRouteHost() removes "routeHost" key
boolean	sendZuulResponse() If this value if true then the response should be sent to the client.
void	set(java.lang.String key) sets a key value to Boolen.TRUE
void	set(java.lang.String key, java.lang.Object value) puts the key, value into the map.
void	setChunkedRequestBody() sets chunkedRequestBody to true
static void	setContextClass(java.lang.Class<? extends RequestContext> clazz) Override the default RequestContext
void	setDebugRequest(boolean bDebug) sets "debugRequest"
void	setDebugRequestHeadersOnly(boolean bHeadersOnly) sets "debugRequestHeadersOnly" to bHeadersOnly
void	setDebugRouting(boolean bDebug) sets debugRouting
void	setOriginContentLength(java.lang.Integer v) sets the content-length from the origin response
void	setOriginContentLength(java.lang.String v) sets the content-length from the origin response
void	setRequest(javax.servlet.http.HttpServletRequest request) sets the HttpServletRequest into the "request" key
void	setRequestQueryParams(java.util.Map<java.lang.String,java.util.List<java.lang.String>> qp) sets the request query params list
void	setResponse(javax.servlet.http.HttpServletResponse response) sets the "response" key to the HttpServletResponse passed in
void	setResponseBody(java.lang.String body) sets the "responseBody" value as a String.
void	setResponseDataStream(java.io.InputStream responseDataStream) sets the InputStream of the response into the responseDataStream
void	setResponseGZipped(boolean gzipped) sets the flag responseGZipped if the response is gzipped
void	setResponseStatusCode(int nStatusCode) Use this instead of response.setStatusCode()
void	setRouteHost(java.net.URL routeHost) sets routeHost
void	setSendZuulResponse(boolean bSend) sets the sendZuulResponse boolean
void	setThrowable(java.lang.Throwable th) sets a throwable
void	setZuulEngineRan() sets zuulEngineRan to true
static void	testSetCurrentContext(RequestContext context) set an overriden "test" context
void	unset() unsets the threadLocal context.

Methods inherited from class java.util.concurrent.ConcurrentHashMap

clear, contains, containsKey, containsValue, elements, entrySet, get, isEmpty, keys, keySet, put, putAll, putIfAbsent, remove, remove, replace, replace, size, values

Methods inherited from class java.util.AbstractMap

clone, equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

equals, hashCode

Field Detail

contextClass

protected static java.lang.Class<? extends RequestContext> contextClass

threadLocal

protected static final java.lang.ThreadLocal<? extends RequestContext> threadLocal

Constructor Detail

RequestContext

public RequestContext()

Method Detail

setContextClass

public static void setContextClass(java.lang.Class<? extends RequestContext> clazz)

Override the default RequestContext

Parameters:

clazz -

testSetCurrentContext

public static void testSetCurrentContext(RequestContext context)

set an overriden "test" context

Parameters:

context -

getCurrentContext

public static RequestContext getCurrentContext()

Get the current RequestContext

Returns:

the current RequestContext

getBoolean

public boolean getBoolean(java.lang.String key)

Convenience method to return a boolean value for a given key

Parameters:

key -

Returns:

true or false depending what was set. default is false

getBoolean

public boolean getBoolean(java.lang.String key,
                 boolean defaultResponse)

Convenience method to return a boolean value for a given key

Parameters:

key -

defaultResponse -

Returns:

true or false depending what was set. default defaultResponse

set

public void set(java.lang.String key)

sets a key value to Boolen.TRUE

Parameters:

key -

set

public void set(java.lang.String key,
       java.lang.Object value)

puts the key, value into the map. a null value will remove the key from the map

Parameters:

key -

value -

getZuulEngineRan

public boolean getZuulEngineRan()

true if zuulEngineRan

Returns:

setZuulEngineRan

public void setZuulEngineRan()

sets zuulEngineRan to true

getRequest

public javax.servlet.http.HttpServletRequest getRequest()

Returns:

the HttpServletRequest from the "request" key

setRequest

public void setRequest(javax.servlet.http.HttpServletRequest request)

sets the HttpServletRequest into the "request" key

Parameters:

request -

getResponse

public javax.servlet.http.HttpServletResponse getResponse()

Returns:

the HttpServletResponse from the "response" key

setResponse

public void setResponse(javax.servlet.http.HttpServletResponse response)

sets the "response" key to the HttpServletResponse passed in

Parameters:

response -

getThrowable

public java.lang.Throwable getThrowable()

returns a set throwable

Returns:

a set throwable

setThrowable

public void setThrowable(java.lang.Throwable th)

sets a throwable

Parameters:

th -

setDebugRouting

public void setDebugRouting(boolean bDebug)

sets debugRouting

Parameters:

bDebug -

debugRouting

public boolean debugRouting()

Returns:

"debugRouting"

setDebugRequestHeadersOnly

public void setDebugRequestHeadersOnly(boolean bHeadersOnly)

sets "debugRequestHeadersOnly" to bHeadersOnly

Parameters:

bHeadersOnly -

debugRequestHeadersOnly

public boolean debugRequestHeadersOnly()

Returns:

"debugRequestHeadersOnly"

setDebugRequest

public void setDebugRequest(boolean bDebug)

sets "debugRequest"

Parameters:

bDebug -

debugRequest

public boolean debugRequest()

gets debugRequest

Returns:

debugRequest

removeRouteHost

public void removeRouteHost()

removes "routeHost" key

setRouteHost

public void setRouteHost(java.net.URL routeHost)

sets routeHost

Parameters:

routeHost - a URL

getRouteHost

public java.net.URL getRouteHost()

Returns:

"routeHost" URL

addFilterExecutionSummary

public void addFilterExecutionSummary(java.lang.String name,
                             java.lang.String status,
                             long time)

appends filter name and status to the filter execution history for the current request

Parameters:

executedFilters - - name of the filter

getFilterExecutionSummary

public java.lang.StringBuilder getFilterExecutionSummary()

Returns:

String that represents the filter execution history for the current request

setResponseBody

public void setResponseBody(java.lang.String body)

sets the "responseBody" value as a String. This is the response sent back to the client.

Parameters:

body -

getResponseBody

public java.lang.String getResponseBody()

Returns:

the String response body to be snt back to the requesting client

setResponseDataStream

public void setResponseDataStream(java.io.InputStream responseDataStream)

sets the InputStream of the response into the responseDataStream

Parameters:

responseDataStream -

setResponseGZipped

public void setResponseGZipped(boolean gzipped)

sets the flag responseGZipped if the response is gzipped

Parameters:

gzipped -

getResponseGZipped

public boolean getResponseGZipped()

Returns:

true if responseGZipped is true (the response is gzipped)

getResponseDataStream

public java.io.InputStream getResponseDataStream()

Returns:

the InputStream Response

sendZuulResponse

public boolean sendZuulResponse()

If this value if true then the response should be sent to the client.

Returns:

setSendZuulResponse

public void setSendZuulResponse(boolean bSend)

sets the sendZuulResponse boolean

Parameters:

bSend -

getResponseStatusCode

public int getResponseStatusCode()

returns the response status code. Default is 200

Returns:

setResponseStatusCode

public void setResponseStatusCode(int nStatusCode)

Use this instead of response.setStatusCode()

Parameters:

nStatusCode -

addZuulRequestHeader

public void addZuulRequestHeader(java.lang.String name,
                        java.lang.String value)

add a header to be sent to the origin

Parameters:

name -

value -

getZuulRequestHeaders

public java.util.Map<java.lang.String,java.lang.String> getZuulRequestHeaders()

return the list of requestHeaders to be sent to the origin

Returns:

the list of requestHeaders to be sent to the origin

addZuulResponseHeader

public void addZuulResponseHeader(java.lang.String name,
                         java.lang.String value)

add a header to be sent to the response

Parameters:

name -

value -

getZuulResponseHeaders

public java.util.List<com.netflix.util.Pair<java.lang.String,java.lang.String>> getZuulResponseHeaders()

returns the current response header list

Returns:

a List> of response headers

getOriginResponseHeaders

public java.util.List<com.netflix.util.Pair<java.lang.String,java.lang.String>> getOriginResponseHeaders()

the Origin response headers

Returns:

the List> of headers sent back from the origin

addOriginResponseHeader

public void addOriginResponseHeader(java.lang.String name,
                           java.lang.String value)

adds a header to the origin response headers

Parameters:

name -

value -

getOriginContentLength

public java.lang.Integer getOriginContentLength()

returns the content-length of the origin response

Returns:

the content-length of the origin response

setOriginContentLength

public void setOriginContentLength(java.lang.Integer v)

sets the content-length from the origin response

Parameters:

v -

setOriginContentLength

public void setOriginContentLength(java.lang.String v)

sets the content-length from the origin response

Parameters:

v - parses the string into an int

isChunkedRequestBody

public boolean isChunkedRequestBody()

Returns:

true if the request body is chunked

setChunkedRequestBody

public void setChunkedRequestBody()

sets chunkedRequestBody to true

isGzipRequested

public boolean isGzipRequested()

Returns:

true is the client request can accept gzip encoding. Checks the "accept-encoding" header

unset

public void unset()

unsets the threadLocal context. Done at the end of the request.

copy

public RequestContext copy()

Mkaes a copy of the RequestContext. This is used for debugging.

Returns:

getRequestQueryParams

public java.util.Map<java.lang.String,java.util.List<java.lang.String>> getRequestQueryParams()

Returns:

Map> of the request Query Parameters

setRequestQueryParams

public void setRequestQueryParams(java.util.Map<java.lang.String,java.util.List<java.lang.String>> qp)

sets the request query params list

Parameters:

qp - Map> qp