eg.nileu.cis.nilestore.main.HttpDealer.java Source code

Introduction

Here is the source code for eg.nileu.cis.nilestore.main.HttpDealer.java

Source

/**
 * This file is part of the Nilestore project.
 * 
 * Copyright (C) (2011) Nile University (NU)
 *
 * Nilestore 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package eg.nileu.cis.nilestore.main;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpVersion;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.content.ContentBody;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.CoreProtocolPNames;
import org.apache.http.util.EntityUtils;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;

import eg.nileu.cis.nilestore.main.progress.FileBodyProgress;
import eg.nileu.cis.nilestore.main.progress.OutputStreamProgress;
import eg.nileu.cis.nilestore.main.progress.ProgressListener;
import eg.nileu.cis.nilestore.main.progress.ProgressUtils;
import eg.nileu.cis.nilestore.utils.FileUtils;

// TODO: Auto-generated Javadoc
/**
 * The Class HttpDealer.
 * 
 * @author Mahmoud Ismail <mahmoudahmedismail@gmail.com>
 */
public class HttpDealer {

    /**
     * Put.
     * 
     * @param filepath
     *            the filepath
     * @param url
     *            the url
     * @throws ClientProtocolException
     *             the client protocol exception
     * @throws IOException
     *             Signals that an I/O exception has occurred.
     */
    public static void put(String filepath, String url) throws ClientProtocolException, IOException {
        url = url + (url.endsWith("/") ? "" : "/") + "upload?t=json";
        HttpClient client = new DefaultHttpClient();
        client.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);

        HttpPost post = new HttpPost(url);
        MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);

        File file = new File(filepath);
        final double filesize = file.length();

        ContentBody fbody = new FileBodyProgress(file, new ProgressListener() {

            @Override
            public void transfered(long bytes, float rate) {
                int percent = (int) ((bytes / filesize) * 100);
                String bar = ProgressUtils.progressBar("Uploading file to the gateway : ", percent, rate);
                System.err.print("\r" + bar);
                if (percent == 100) {
                    System.err.println();
                    System.err.println("wait the gateway is processing and saving your file");
                }
            }
        });

        entity.addPart("File", fbody);

        post.setEntity(entity);

        HttpResponse response = client.execute(post);

        if (response != null) {
            System.err.println(response.getStatusLine());
            HttpEntity ht = response.getEntity();
            String json = EntityUtils.toString(ht);
            JSONParser parser = new JSONParser();
            try {
                JSONObject obj = (JSONObject) parser.parse(json);
                System.out.println(obj.get("cap"));
            } catch (ParseException e) {
                System.err.println("Error during parsing the response: " + e.getMessage());
                System.exit(-1);
            }
        } else {
            System.err.println("Error: response = null");
        }

        client.getConnectionManager().shutdown();
    }

    /**
     * Gets the.
     * 
     * @param url
     *            the url
     * @param cap
     *            the cap
     * @param downloadDir
     *            the download dir
     * @throws ClientProtocolException
     *             the client protocol exception
     * @throws IOException
     *             Signals that an I/O exception has occurred.
     */
    public static void get(String url, String cap, String downloadDir) throws ClientProtocolException, IOException {
        url = url + (url.endsWith("/") ? "" : "/") + "download/" + cap;
        HttpClient client = new DefaultHttpClient();
        client.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);

        HttpGet get = new HttpGet(url);

        HttpResponse response = client.execute(get);

        if (response != null) {
            System.err.println(response.getStatusLine());
            HttpEntity ht = response.getEntity();
            final double filesize = ht.getContentLength();

            FileOutputStream out = new FileOutputStream(FileUtils.JoinPath(downloadDir, cap));
            OutputStreamProgress cout = new OutputStreamProgress(out, new ProgressListener() {

                @Override
                public void transfered(long bytes, float rate) {
                    int percent = (int) ((bytes / filesize) * 100);
                    String bar = ProgressUtils.progressBar("Download Progress: ", percent, rate);
                    System.out.print("\r" + bar);
                }
            });

            ht.writeTo(cout);
            out.close();
            System.out.println();
        } else {
            System.err.println("Error: response = null");
        }

        client.getConnectionManager().shutdown();
    }

}