com.fine47.http.AbstractResponseWrapper.java Source code

Introduction

Here is the source code for com.fine47.http.AbstractResponseWrapper.java

Source

/**
 * This file is part of HTTP Client library.
 * Copyright (C) 2014 Noor Dawod. All rights reserved.
 * https://github.com/noordawod/http-client
 *
 * Released under the MIT license
 * http://en.wikipedia.org/wiki/MIT_License
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

package com.fine47.http;

import android.util.Log;
import com.fine47.http.request.AbstractRequest;
import com.fine47.http.response.AbstractResponse;
import com.loopj.android.http.BinaryHttpResponseHandler;
import org.apache.http.Header;
import org.apache.http.HttpException;

/**
 * Base response handler for all others. This, and those, are internal classes.
 *
 * @param <E> type of resources which is expected from the request
 * @param <M> meta-data type which could be accompanying the request
 */
abstract class AbstractResponseWrapper<E, M> extends BinaryHttpResponseHandler {

    final AbstractRequest<M> request;
    final AbstractResponse<E, M> response;

    public AbstractResponseWrapper(AbstractRequest<M> request, AbstractResponse<E, M> response) {
        super();

        // Always use the pool thread to fire callbacks.
        setUsePoolThread(true);

        // Keep references to parameters.
        this.request = request;
        this.response = response;
    }

    public AbstractResponseWrapper(String[] allowedContentTypes, AbstractRequest<M> request,
            AbstractResponse<E, M> response) {
        super(allowedContentTypes);

        // Always use the pool thread to fire callbacks.
        setUsePoolThread(true);

        // Keep references to parameters.
        this.request = request;
        this.response = response;
    }

    @Override
    public void onCancel() {
        if (ActivityHttpClient.isDebugging()) {
            Log.w(ActivityHttpClient.LOG_TAG, "Request cancelled for URL: " + request.url);
        }
    }

    @Override
    public void onFinish() {
        if (ActivityHttpClient.isDebugging()) {
            Log.i(ActivityHttpClient.LOG_TAG, "Request finished for URL: " + request.url);
        }
    }

    @Override
    public void onSuccess(int statusCode, Header[] headers, byte[] bytes) {
        E value;
        if (null == bytes || 0 == bytes.length || null == (value = bytesToValue(bytes))) {
            onFailure(statusCode, headers, bytes,
                    new HttpException("Response body is empty or cannot be converted to a value."));
        } else {
            response.onSuccess(value, request);
            if (ActivityHttpClient.isDebugging()) {
                Log.i(ActivityHttpClient.LOG_TAG, "Request successful for URL: " + request.url);
            }
        }
    }

    @Override
    public void onFailure(int statusCode, Header[] headers, byte[] bytes, Throwable error) {
        response.onFailure(null == bytes ? null : bytesToValue(bytes), request, error);
        if (ActivityHttpClient.isDebugging()) {
            Log.e(ActivityHttpClient.LOG_TAG,
                    "Request failed for URL: " + request.url + " (code=" + statusCode + ")", error);
        }
    }

    abstract E bytesToValue(byte[] bytes);
}