org.zalando.guild.api.json.fields.jackson.servlet

Class ThreadLocalRequestProvider

java.lang.Object

org.zalando.guild.api.json.fields.jackson.servlet.ThreadLocalRequestProvider

All Implemented Interfaces:

com.google.common.base.Supplier<javax.servlet.http.HttpServletRequest>

public final class ThreadLocalRequestProvider
extends Object
implements com.google.common.base.Supplier<javax.servlet.http.HttpServletRequest>

Request Provider that uses ThreadLocals. This obviously won't work in an asynchronous environment.

Since:

23.09.2015

Author:

Sean Patrick Floyd (sean.floyd@zalando.de)

Method Summary

Modifier and Type	Method and Description
static void	assignRequest(javax.servlet.http.HttpServletRequest request) Assign the HttpServletRequest to the ThreadLocal.
javax.servlet.http.HttpServletRequest	get()
ThreadLocalRequestProvider	getInstance() It's a singleton.
static void	removeRequest() Clear the HttpServletRequest from the ThreadLocal.

Methods inherited from class java.lang.Object

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

Method Detail

get

@Nonnull
public javax.servlet.http.HttpServletRequest get()

Specified by:

get in interface com.google.common.base.Supplier<javax.servlet.http.HttpServletRequest>

assignRequest

public static void assignRequest(@Nonnull
                                 javax.servlet.http.HttpServletRequest request)

Assign the HttpServletRequest to the ThreadLocal. This will usually be called from a Filter or Interceptor. Don't forget to call removeRequest() at the end of the request, or you'll have a memory leak.

removeRequest

public static void removeRequest()

Clear the HttpServletRequest from the ThreadLocal. This will usually be called from a Filter or Interceptor.

getInstance

@Nonnull
public ThreadLocalRequestProvider getInstance()

It's a singleton. The Design Pattern your teachers warned you about.