com.flipkart.poseidon.core

Class RequestContext

java.lang.Object

com.flipkart.poseidon.core.RequestContext

public class RequestContext
extends Object

Reuqest level context where a request implies a single invocation of Lego. Implemented as a thread local which is used to hold things like requestId, or other request level information to accessed by various elements in the call stack.

Constructor Summary

Constructors

Constructor and Description
RequestContext()

Method Summary

Modifier and Type	Method and Description
static Object	get(String key) Get's the value for a given key from the request context.
static Map<String,Object>	getContextMap() Get's a snapshot of the request context as a a Map
static void	initialize() initialize an empty request context, it will cleanup previous value of the threadlocal if used in a threadpool
static void	initialize(Map<String,Object> ctxt) initialize a new request context with the given context, it will cleanup previous value of the threadlocal if it is being used in a threadpool
static void	set(String key, Object value) Set's the value for a given key in the request context, this value will be accessible from the context using the get method.
static void	shutDown() Shuts down the request context by cleaning up the threadlocal.

Methods inherited from class java.lang.Object

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

Constructor Detail

RequestContext

public RequestContext()

Method Detail

initialize

public static void initialize()

initialize an empty request context, it will cleanup previous value of the threadlocal if used in a threadpool

initialize

public static void initialize(Map<String,Object> ctxt)

initialize a new request context with the given context, it will cleanup previous value of the threadlocal if it is being used in a threadpool

Parameters:

ctxt - Context map

set

public static void set(String key,
                       Object value)

Set's the value for a given key in the request context, this value will be accessible from the context using the get method.

Parameters:

key - Key to set

value - Value to set

get

public static Object get(String key)

Get's the value for a given key from the request context.

Parameters:

key - Key to get

Returns:

Object - Value for given key

getContextMap

public static Map<String,Object> getContextMap()

Get's a snapshot of the request context as a a Map

Returns:

context map

shutDown

public static void shutDown()

Shuts down the request context by cleaning up the threadlocal.