com.android.dialer.omni.PlaceUtil.java Source code

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Here is the source code for com.android.dialer.omni.PlaceUtil.java

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/*
 *  Copyright (C) 2014 The OmniROM Project
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package com.android.dialer.omni;

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.util.EntityUtils;
import org.ccil.cowan.tagsoup.Parser;
import org.json.JSONException;
import org.json.JSONObject;
import org.xml.sax.ContentHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

import android.util.Log;

public class PlaceUtil {
    private final static String TAG = "PlaceUtil";
    private final static boolean DEBUG = false;

    /**
     * Executes a post request and return a JSON object
     * @param url The API URL
     * @param data The data to post in POST field
     * @return the JSON object
     * @throws IOException
     * @throws JSONException
     */
    public static JSONObject postJsonRequest(String url, String postData) throws IOException, JSONException {
        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        con.setRequestMethod("POST");

        if (DEBUG)
            Log.d(TAG, "Posting: " + postData + " to " + url);

        // Send post request
        con.setDoOutput(true);
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(postData);
        wr.flush();
        wr.close();

        int responseCode = con.getResponseCode();

        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        JSONObject json = new JSONObject(response.toString());
        return json;
    }

    /**
     * Executes a GET request and return a JSON object
     * @param url The API URL
     * @return the JSON object
     * @throws IOException
     * @throws JSONException
     */
    public static JSONObject getJsonRequest(String url) throws IOException, JSONException {
        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        con.setRequestMethod("GET");

        if (DEBUG)
            Log.d(TAG, "Getting JSON from: " + url);

        con.setDoOutput(true);
        int responseCode = con.getResponseCode();

        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        JSONObject json = new JSONObject(response.toString());
        return json;
    }

    /**
     * Executes a get request and return byte array
     * @param url the API URL
     * @return the byte array containing the web page
     * @throws ClientProtocolException
     * @throws IOException
     */
    public static byte[] getRequest(String url) throws ClientProtocolException, IOException {
        if (DEBUG)
            Log.d(TAG, "download: " + url);

        HttpParams params = new BasicHttpParams();
        HttpConnectionParams.setConnectionTimeout(params, 15000);
        HttpConnectionParams.setSoTimeout(params, 15000);
        HttpClient client = new DefaultHttpClient(params);
        HttpGet request = new HttpGet(url);
        HttpResponse response = client.execute(request);
        HttpEntity entity = response.getEntity();
        byte[] htmlResultPage = null;
        if (entity != null) {
            htmlResultPage = EntityUtils.toByteArray(entity);
            entity.consumeContent();
        }

        return htmlResultPage;
    }

    /**
     * Executes a get request and parses the result with the provided {@link ContentHandler}
     * @param url the API URL
     * @param contentHandler the ContentHandler to with which the result gets parsed
     * @throws ClientProtocolException
     * @throws IOException
     * @throws SAXException
     */
    public static void getRequest(String url, ContentHandler contentHandler)
            throws ClientProtocolException, IOException, SAXException {
        byte[] htmlResultPage = getRequest(url);
        Parser parser = new Parser();
        parser.setContentHandler(contentHandler);
        InputStream inputStream = new ByteArrayInputStream(htmlResultPage);
        parser.parse(new InputSource(inputStream));
    }

}