it.unicaradio.android.utils.NetworkUtils.java Source code

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Here is the source code for it.unicaradio.android.utils.NetworkUtils.java

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/**
 * 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; version 2 of the License.
 * 
 * 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, write to the Free Software Foundation, Inc., 59 Temple
 * Place, Suite 330, Boston, MA 02111-1307 USA
 * 
 * Copyright UnicaRadio
 */
package it.unicaradio.android.utils;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;

import org.apache.http.HttpEntity;
import org.apache.http.HttpException;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import org.apache.http.util.ByteArrayBuffer;
import org.apache.http.util.EntityUtils;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

/**
 * @author paolo.cortis
 */
public class NetworkUtils {
    private NetworkUtils() {
    }

    public static boolean isConnected(Context context) {
        ConnectivityManager connectivityManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        for (NetworkInfo info : connectivityManager.getAllNetworkInfo()) {
            if (info.isConnected()) {
                return true;
            }
        }

        return false;
    }

    public static boolean isConnectedToWifi(Context context) {
        ConnectivityManager connManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo info = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);

        if (info == null) {
            return false;
        }

        return info.isConnected();
    }

    public static boolean isConnectedToMobileData(Context context) {
        ConnectivityManager connManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo info = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);

        if (info == null) {
            return false;
        }

        return info.isConnected();
    }

    public static byte[] httpGet(String urlString) throws IOException {
        URL url = new URL(urlString);

        URLConnection ucon = url.openConnection();

        InputStream is = ucon.getInputStream();
        BufferedInputStream bis = new BufferedInputStream(is);

        // Read bytes to the Buffer until there is nothing more to read(-1).
        ByteArrayBuffer baf = new ByteArrayBuffer(50);
        int current = 0;
        while ((current = bis.read()) != -1) {
            baf.append((byte) current);
        }

        return baf.toByteArray();
    }

    public static byte[] httpPost(String url, byte[] postData, String contentType)
            throws ClientProtocolException, IOException, HttpException {
        HttpParams httpParams = new BasicHttpParams();

        HttpPost post = new HttpPost(url);
        post.setEntity(new ByteArrayEntity(postData));
        post.addHeader("Content-Type", contentType);

        HttpClient client = new DefaultHttpClient(httpParams);
        HttpResponse response = client.execute(post);

        HttpEntity httpEntity = response.getEntity();
        if (httpEntity == null) {
            throw new HttpException("No answer from server.");
        }

        return EntityUtils.toByteArray(httpEntity);
    }
}