Android InputStream Read getInputStreamFromUrl_V9( Context paramContext, String paramString)

Description

get Input Stream From UrV

License

Open Source License

Declaration

private static InputStream getInputStreamFromUrl_V9(
            Context paramContext, String paramString) 

Method Source Code

//package com.java2s;
/* The MIT License (MIT)
 *
 * Copyright (c) 2013 Romain Segismont//from   ww  w  .  ja  v  a2s.c  o m
 * 
 * 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.
 * 
 */

import android.content.Context;
import android.content.SharedPreferences;

import android.preference.PreferenceManager;

import java.io.InputStream;

import java.net.HttpURLConnection;
import java.net.URL;

public class Main {
    public static long timeToConfirm = 0;

    private static InputStream getInputStreamFromUrl_V9(
            Context paramContext, String paramString) {
        if (confirmDownload(paramContext, paramString)) {
            try {

                URL localURL = new URL(paramString);
                HttpURLConnection localHttpURLConnection2 = (HttpURLConnection) localURL
                        .openConnection();
                localHttpURLConnection2.setRequestProperty(
                        "Accept-Charset", "UTF-8");
                localHttpURLConnection2.setReadTimeout(30000);
                localHttpURLConnection2.setConnectTimeout(30000);
                localHttpURLConnection2.setRequestMethod("GET");
                localHttpURLConnection2.setDoInput(true);
                localHttpURLConnection2.connect();
                return localHttpURLConnection2.getInputStream();

            } catch (Throwable localThrowable) {

                localThrowable.printStackTrace();
                return null;

            }
        } else {
            return null;
        }
    }

    private static boolean confirmDownload(Context context, String stringUrl) {
        try {
            URL url = new URL(stringUrl);
            HttpURLConnection urlConnection = (HttpURLConnection) url
                    .openConnection();
            long candidateDate = urlConnection.getLastModified();
            final SharedPreferences prefsManager = PreferenceManager
                    .getDefaultSharedPreferences(context
                            .getApplicationContext());

            final long savedDate = prefsManager.getLong(stringUrl, 0);

            urlConnection.disconnect();
            if (candidateDate <= savedDate) {
                return false;
            }
            timeToConfirm = candidateDate;

            return true;

        } catch (Throwable localThrowable) {

            localThrowable.printStackTrace();
            return false;

        }
    }
}

Related

1. readStringFromInputStream(InputStream is)
2. readTextInputStream(InputStream is)
3. readData(InputStream inSream, String charsetName)
4. skip(InputStream stream, int numBytes)
5. dealResponseResult(InputStream in)
6. getResponseBody(InputStream inputStream)
7. makeInputStream(Uri uri, ContentResolver cr)
8. outputFile(InputStream is, String targetPath, String filename)