Play Framework/Scala example source code file (HttpExecution.java)

This example Play Framework source code file (HttpExecution.java) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Play Framework (and Scala) source code examples by using tags.

All credit for the original source code belongs to Play Framework; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Play Framework tags/keywords

concurrent, core, executioncontext, executioncontextexecutor, httpexecution, lib, library, play, play framework

The HttpExecution.java Play Framework example source code

/*
 * Copyright (C) 2009-2013 Typesafe Inc. <http://www.typesafe.com>
 */
package play.libs;

import play.core.Invoker;
import play.core.j.HttpExecutionContext;
import play.core.j.OrderedExecutionContext;
import scala.concurrent.ExecutionContext;
import scala.concurrent.ExecutionContextExecutor;

/**
 * ExecutionContexts that preserve the current thread's context ClassLoader and
 * Http.Context.
 */
public class HttpExecution {

    /**
     * An ExecutionContext that executes work on the given ExecutionContext. The
     * current thread's context ClassLoader and Http.Context are captured when
     * this method is called and preserved for all executed tasks.
     */
    public static ExecutionContextExecutor fromThread(ExecutionContext delegate) {
        return HttpExecutionContext.fromThread(delegate);
    }

    /**
     * An ExecutionContext that executes work on the application's internal
     * ActorSystem dispatcher. The current thread's context ClassLoader and
     * Http.Context are captured when this method is called and preserved
     * for all executed tasks.
     */
    public static ExecutionContextExecutor defaultContext() {
        return HttpExecutionContext.fromThread(Invoker.executionContext());
    }

    private static ExecutionContext orderedExecutionContext = new OrderedExecutionContext(Invoker.system(), 64);

    /**
     * An ExecutionContext that executes work for a given Http.Context in the
     * same actor each time, ensuring ordered execution of that work. The
     * current thread's context ClassLoader and Http.Context are captured when
     * this method is called and preserved for all executed tasks.
     * 
     * This ExecutionContext gives the legacy behaviour of Play's F.Promise
     * class.
     */
    public static ExecutionContextExecutor orderedContext() {
        return HttpExecutionContext.fromThread(orderedExecutionContext);
    }

}