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

This example Play Framework source code file (CachedAction.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

action, cache, cachedaction, integer, lib, library, mvc, override, play, play framework, result, runtimeexception, string, throwable

The CachedAction.java Play Framework example source code

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

import play.libs.F;
import play.mvc.*;
import play.mvc.Http.*;

/**
 * Cache another action.
 */
public class CachedAction extends Action<Cached> {
    
    public F.Promise<Result> call(Context ctx) {
        try {
            final String key = configuration.key();
            final Integer duration = configuration.duration();
            Result result = (Result) Cache.get(key);
            F.Promise<Result> promise;
            if(result == null) {
                promise = delegate.call(ctx);
                promise.onRedeem(new F.Callback<Result>() {
                    @Override
                    public void invoke(Result result) throws Throwable {
                        Cache.set(key, result, duration);
                    }
                });
            } else {
                promise = F.Promise.pure(result);
            }
            return promise;
        } catch(RuntimeException e) {
            throw e;
        } catch(Throwable t) {
            throw new RuntimeException(t);
        }
    }

}