Android Open Source - wristband-android Clear Cache Request

From Project

License

The source code is released under:

The Artistic License 2.0 Copyright (c) 2014 Allan Pichardo Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed...

If you think the Android project wristband-android listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

/*
 * Copyright (C) 2011 The Android Open Source Project
 */* w  ww.j a va 2 s . co  m*/
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.volley.toolbox;

import com.android.volley.Cache;
import com.android.volley.NetworkResponse;
import com.android.volley.Request;
import com.android.volley.Response;

import android.os.Handler;
import android.os.Looper;

/**
 * A synthetic request used for clearing the cache.
 */
public class ClearCacheRequest extends Request<Object> {
    private final Cache mCache;
    private final Runnable mCallback;

    /**
     * Creates a synthetic request for clearing the cache.
     * @param cache Cache to clear
     * @param callback Callback to make on the main thread once the cache is clear,
     * or null for none
     */
    public ClearCacheRequest(Cache cache, Runnable callback) {
        super(Method.GET, null, null);
        mCache = cache;
        mCallback = callback;
    }

    @Override
    public boolean isCanceled() {
        // This is a little bit of a hack, but hey, why not.
        mCache.clear();
        if (mCallback != null) {
            Handler handler = new Handler(Looper.getMainLooper());
            handler.postAtFrontOfQueue(mCallback);
        }
        return true;
    }

    @Override
    public Priority getPriority() {
        return Priority.IMMEDIATE;
    }

    @Override
    protected Response<Object> parseNetworkResponse(NetworkResponse response) {
        return null;
    }

    @Override
    protected void deliverResponse(Object response) {
    }
}

Java Source Code List