FileUtils.java

/* =======================================================
	Copyright 2014 - ePortfolium - Licensed under the
	Educational Community 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.osedu.org/licenses/ECL-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.portfolio.data.utils;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

public class FileUtils{
  public static String getMimeType(String fileUrl)
    throws java.io.IOException, MalformedURLException
  {
    String type = null;
    URL u = new URL(fileUrl);
    URLConnection uc = null;
    uc = u.openConnection();
    type = uc.getContentType();
    return type;
  }

  public static String getMimeTypeFromExtension(String extension)
  {
	  String contentType = null;

	  if (extension.equals("au"))
		    contentType = "audio/basic";
		if (extension.equals("avi"))
		    contentType = "video/x-msvideo";
		if (extension.equals("bmp"))
		    contentType = "image/bmp";
		if (extension.equals("css"))
		    contentType = "text/css";
		if (extension.equals("doc") || extension.equals("dot"))
		    contentType = "application/msword";
		if (extension.equals("docx"))
		    contentType = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
		if (extension.equals("eps"))
		    contentType = "application/postscript";
		if (extension.equals("gif"))
		    contentType = "image/gif";
		if (extension.equals("html") || extension.equals("htm"))
		    contentType = "text/html";
		if (extension.equals("jpg") || extension.equals("jpeg"))
		    contentType = "image/jpeg";
		if (extension.equals("js"))
		    contentType = "application/x-javascript";
		if (extension.equals("mov") || extension.equals("qt"))
		    contentType = "video/quicktime";
		if (extension.equals("mp3"))
		    contentType = "audio/mpeg3";
		if (extension.equals("mpeg") || extension.equals("mpg"))
		    contentType = "video/mpeg";
		if (extension.equals("mpp"))
		    contentType = "application/vnd.ms-project";
		if (extension.equals("mtw"))
		    contentType = "application/octet-stream";
		if (extension.equals("pdf"))
		    contentType = "application/pdf";
		if (extension.equals("png"))
		    contentType = "image/png";
		if (extension.equals("ppt") || extension.equals("pot") || extension.equals("pps"))
		    contentType = "application/vnd.ms-powerpoint";
		if (extension.equals("pptx"))
		    contentType = "application/vnd.openxmlformats-officedocument.presentationml.presentation";
		if (extension.equals("ps"))
		    contentType = "application/postscript";
		if (extension.equals("ra"))
		    contentType = "audio/x-realaudio";
		if (extension.equals("ram") || extension.equals("rm"))
		    contentType = "audio/x-pn-realaudio";
		if (extension.equals("sql"))
		    contentType = "text/plain";
		if (extension.equals("swf"))
		    contentType = "application/x-shockwave-flash";
		if (extension.equals("tif"))
		    contentType = "image/tiff";
		if (extension.equals("txt") || extension.equals("text"))
		    contentType = "text/plain";
		if (extension.equals("vsd"))
		    contentType = "application/x-visio";
		if (extension.equals("wav"))
		    contentType = "audio/x-wav";
		if (extension.equals("xls"))
		    contentType = "application/vnd.ms-excel";
		if (extension.equals("xml"))
		    contentType = "application/xml";
		if (extension.equals("zip"))
		    contentType = "application/x-zip-compressed";
		if (extension.equals("java"))
		    contentType = "text/plain";

		return contentType;
  }


  public static String getHTTPQuery(String urlToRead) {
      URL url;
      HttpURLConnection conn;
      BufferedReader rd;
      String line;
      String result = "";
      try {
         url = new URL(urlToRead);
         conn = (HttpURLConnection) url.openConnection();
         conn.setRequestMethod("GET");
         rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
         while ((line = rd.readLine()) != null) {
            result += line;
         }
         rd.close();
      } catch (IOException e) {
         e.printStackTrace();
      } catch (Exception e) {
         e.printStackTrace();
      }
      return result;
   }

  public static String postHTTPQuery(String url, String urlParameters) throws Exception {

		URL obj = new URL(url);
		HttpURLConnection con = (HttpURLConnection) obj.openConnection();

		//add reuqest header



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

		int responseCode = con.getResponseCode();
		System.out.println("\nSending 'POST' request to URL : " + url);
		System.out.println("Post parameters : " + urlParameters);
		System.out.println("Response Code : " + responseCode);

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

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

		//print result
		return response.toString();

	}


}