Index: lams_common/src/java/org/lamsfoundation/lams/util/HttpUrlConnectionUtil.java
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diff -u
--- lams_common/src/java/org/lamsfoundation/lams/util/HttpUrlConnectionUtil.java	(revision 0)
+++ lams_common/src/java/org/lamsfoundation/lams/util/HttpUrlConnectionUtil.java	(revision 6e1e877cce7e8d680291dd2753dc8f1005305ad8)
@@ -0,0 +1,130 @@
+/*
+ * Created on Oct 13, 2005
+ *
+ */
+package org.lamsfoundation.lams.util;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+import javax.servlet.http.Cookie;
+
+import org.apache.log4j.Logger;
+
+
+/**
+ * @author mtruong
+ *
+ */
+public class HttpUrlConnectionUtil {
+    
+    private static Logger log = Logger.getLogger(HttpUrlConnectionUtil.class);
+    
+    /**
+     * Mimics a browser connection and connects to the url <code>urlToConnectTo</code> and writes
+     * the contents to the file with <code>filename</code> stored in <code>directoryToStoreFile</code>.
+     * Also sets the necessary cookies needed in the form JSESSIONID=XXXX;JSESSIONIDSSO=XXXX;SYSSESSIONID=XXXX
+     * 
+     * @param urlToConnectTo The url in which the HttpUrlConnection is to be made
+     * @param directoryToStoreFile The directory to place the saved html file
+     * @param filename	The name of the file, eg. export_main.html
+     * @param cookies The Cookie objects which needs to be passed along with the request
+     * @throws MalformedURLException
+     * @throws FileNotFoundException
+     * @throws IOException
+     */
+    public static void writeResponseToFile(String urlToConnectTo, String directoryToStoreFile, String filename, Cookie[] cookies) 
+    	throws MalformedURLException, FileNotFoundException, IOException
+    {
+        String absoluteFilePath = directoryToStoreFile + File.separator + filename;
+		
+			URL url = new URL(urlToConnectTo);
+			HttpURLConnection con = (HttpURLConnection)url.openConnection();
+			con.setRequestProperty("Cookie", getCookieString(cookies)); //send the necessary cookies along with the request
+			
+			if ( log.isDebugEnabled() ) {
+				log.debug("A connection has been established with "+urlToConnectTo);
+			}
+			InputStream inputStream = con.getInputStream();
+			OutputStream outStream = new FileOutputStream(absoluteFilePath);
+			   
+			int c = -1;
+			while ((c = inputStream.read())!= -1)
+			{
+				outStream.write(c);
+			}
+			   
+			inputStream.close();
+			outStream.close(); 
+			if ( log.isDebugEnabled() ) {
+				log.debug("A connection to "+urlToConnectTo + " has been closed");
+			}
+	
+    }
+    
+    /**
+     * Method used by the export service method. It will mimic a browsers and
+     * connects to the tools export url via a HttpUrlConnection. The tool's
+     * export page will return the name of the main file being exported, and this
+     * method reads the name and returns it to the calling code.
+     * @param toolsExportUrl The url in which the HttpUrlConnection is to be made
+     * @param cookies The Cookie objects which needs to be passed along with the request
+     * @return String the main file that was exported by the tool
+     * @throws MalformedURLException
+     * @throws FileNotFoundException
+     * @throws IOException
+     */
+    public static String connectToToolExportURL(String toolsExportUrl, Cookie[] cookies)
+    	throws MalformedURLException, FileNotFoundException, IOException
+    {
+	    String mainFileName = null;
+		
+	    URL url = new URL(toolsExportUrl);
+		HttpURLConnection con = (HttpURLConnection)url.openConnection();
+		con.setRequestProperty("Cookie", getCookieString(cookies));
+			
+		BufferedReader input = new BufferedReader(new InputStreamReader(con.getInputStream()));
+	
+		mainFileName = input.readLine();
+			
+		input.close();
+	
+		return mainFileName;	
+		
+	
+	}
+    
+    
+    /**
+     * This helper method sets up the string which is passed as a parameter to
+     * conn.setRequestProperty("Cookie" cookeString). It formulates a string
+     * of the form JSESSIONID=XXXX;JSESSIONIDSSO=XXXX;SYSSESSIONID=XXXX
+     * @param cookies
+     * @return
+     */
+    private static String getCookieString(Cookie[] cookies)
+	{
+	    	    
+	   StringBuffer cookieString = new StringBuffer();
+	   for (int i=0; i< cookies.length; i++)
+	   {
+	   		cookieString.append(cookies[i].getName()).append("=").append(cookies[i].getValue());
+	   		if (i != (cookies.length-1))
+	   		{
+	   		    cookieString.append(";");
+	   		}
+	   }
+	   
+	   return cookieString.toString();
+	}
+
+}