com.wizarpos.atool.net.volley2.CustomStringRequest.java Source code

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Here is the source code for com.wizarpos.atool.net.volley2.CustomStringRequest.java

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/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * 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.wizarpos.atool.net.volley2;

import java.io.UnsupportedEncodingException;
import java.util.Map;

import org.apache.http.protocol.HTTP;

import android.text.TextUtils;

import com.android.volley.AuthFailureError;
import com.android.volley.NetworkResponse;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.Response.ErrorListener;
import com.android.volley.Response.Listener;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.HttpHeaderParser;
import com.wizarpos.atool.net.log.Logger;

/**
 * A canned request for retrieving the response body at a given URL as a String.
 * 
 * StringRequest wu@[20150304]
 */
public class CustomStringRequest extends Request<String> {
    private final Listener<String> mListener;
    private Map<String, String> header;
    private String params;

    /**
     * Creates a new request with the given method.
     * 
     * @param method
     *            the request {@link Method} to use
     * @param url
     *            URL to fetch the string at
     * @param listener
     *            Listener to receive the String response
     * @param errorListener
     *            Error listener, or null to ignore errors
     */
    public CustomStringRequest(int method, String url, Listener<String> listener, ErrorListener errorListener) {
        super(method, url, errorListener);
        mListener = listener;
    }

    /**
     * 
     * @param url
     *            ?
     * @param params
     *            ?
     * @param header
     *            
     * @param listener
     * @param errorListener
     */
    public CustomStringRequest(String url, String params, Map<String, String> header, Listener<String> listener,
            ErrorListener errorListener) {
        super(Method.POST, url, errorListener);
        mListener = listener;
        this.params = params;
        this.header = header;
    }

    @Override
    public Map<String, String> getHeaders() throws AuthFailureError {
        if (header != null && !header.isEmpty()) {// bug wu@[20150225]
            return header;
        } else {
            return super.getHeaders();
        }
    }

    /**
     * Creates a new GET request.
     * 
     * @param url
     *            URL to fetch the string at
     * @param listener
     *            Listener to receive the String response
     * @param errorListener
     *            Error listener, or null to ignore errors
     */
    public CustomStringRequest(String url, Listener<String> listener, ErrorListener errorListener) {
        this(Method.GET, url, listener, errorListener);
    }

    public CustomStringRequest(String url, Map<String, String> header, Listener<String> listener,
            ErrorListener errorListener) {
        this(Method.GET, url, listener, errorListener);
        this.header = header;
    }

    @Override
    public byte[] getBody() throws AuthFailureError {
        if (TextUtils.isEmpty(params)) {
            return null;
        }
        try {
            return params.getBytes(getParamsEncoding());
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
            VolleyError error = new VolleyError(e.getMessage());
            deliverError(error);// ?
        }
        return null;
    }

    @Override
    protected void deliverResponse(String response) {
        mListener.onResponse(response);
    }

    @Override
    protected Response<String> parseNetworkResponse(NetworkResponse response) {
        String parsed;
        try {
            // parsed = new String(response.data,
            // HttpHeaderParser.parseCharset(response.headers));
            parsed = new String(response.data, getParamsEncoding());// UTF-8 wu@[20150225]
        } catch (UnsupportedEncodingException e) {
            parsed = new String(response.data);
        }
        return Response.success(parsed, HttpHeaderParser.parseCacheHeaders(response));
    }
}