Android Open Source - Dreamer Blur Response Delivery

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License

The source code is released under:

Apache License

Java Source Code

package com.android.fancyblurdemo.app.imageblur;
//from w w  w .  j  a va 2  s. c  o  m
import android.os.Handler;

import java.util.concurrent.Executor;

/**
 * Created by kevin.marlow on 3/26/14.
 */
public class BlurResponseDelivery {

    /** Used for posting responses, typically to the main thread. */
    private final Executor mResponsePoster;

    /**
     * Creates a new response delivery interface.
     * @param handler {@link android.os.Handler} to post responses on
     */
    public BlurResponseDelivery(final Handler handler) {
        // Make an Executor that just wraps the handler.
        mResponsePoster = new Executor() {
            @Override
            public void execute(Runnable command) {
                handler.post(command);
            }
        };
    }

    /**
     * Creates a new response delivery interface, mockable version
     * for testing.
     * @param executor For running delivery tasks
     */
    public BlurResponseDelivery(Executor executor) {
        mResponsePoster = executor;
    }

    public void postResponse(BlurRequest request, BlurResponse response) {
        postResponse(request, response, null);
    }

    public void postResponse(BlurRequest request, BlurResponse response, Runnable runnable) {
        request.markDelivered();
        request.addMarker("post-response");
        mResponsePoster.execute(new ResponseDeliveryRunnable(request, response, runnable));
    }

    public void postError(BlurRequest request, BlurError error) {
        request.addMarker("post-error");
        BlurResponse response = BlurResponse.error(error);
        mResponsePoster.execute(new ResponseDeliveryRunnable(request, response, null));
    }

    /**
     * A Runnable used for delivering network responses to a listener on the
     * main thread.
     */
    @SuppressWarnings("rawtypes")
    private class ResponseDeliveryRunnable implements Runnable {
        private final BlurRequest mRequest;
        private final BlurResponse mResponse;
        private final Runnable mRunnable;

        public ResponseDeliveryRunnable(BlurRequest request, BlurResponse response, Runnable runnable) {
            mRequest = request;
            mResponse = response;
            mRunnable = runnable;
        }

        @SuppressWarnings("unchecked")
        @Override
        public void run() {
            // If this request has canceled, finish it and don't deliver.
            if (mRequest.isCanceled()) {
                mRequest.finish("canceled-at-delivery");
                return;
            }

            // Deliver a normal response or error, depending.
            if (mResponse.isSuccess()) {
                mRequest.deliverResponse(mResponse.result);
            } else {
                mRequest.deliverError(mResponse.error);
            }

            // If this is an intermediate response, add a marker, otherwise we're done
            // and the request can be finished.
            if (mResponse.intermediate) {
                mRequest.addMarker("intermediate-response");
            } else {
                mRequest.finish("done");
            }

            // If we have been provided a post-delivery runnable, run it.
            if (mRunnable != null) {
                mRunnable.run();
            }
        }
    }
}

Java Source Code List

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