Unable to run URL from a servlet program

Question

Hi ,
I have some problems in executing a URL which is coded to run the reports in HTML format from the J2EE-Oracle Web application. The servlet is coded to set the browser properties such as content type, content length, etc....The content length is -1 when this URl is run. Find below the servlet code which is currently used,
/// code starts here
private String executeReportUsingURL(String[] command)
          throws IOException,ClassNotFoundException,SQLException,InterruptedException {
String filePath = "";
try
String paramString = "&otherparms=YES&";
getp.info("In executeReportUsingURL method --- " + command);
getp.info("In executeReportUsingURL method --- " + command);
int len = command.length;
String requestString="";
String desfileFormat="";
for(int k=9;k<len;k++)
String tempParam = command[k];
getp.info(tempParam);
System.out.println(tempParam);
if (k!=(len-1))
paramString=paramString + tempParam + "&";
}else
paramString=paramString + tempParam;
getp.info("Al Ansari Exchange: "+paramString);
System.out.println("Al Ansari Exchange: "+paramString);
               for(int i=0;i<len;i++)
                                        desfileFormat=command[5].toString();
getp.info("Request String "+requestString);
System.out.println("Request String "+requestString);
String urlString = resource.getString("reportGeneratorUrl");
DataOutputStream dataoutputstream;               
BufferedReader bufferedreader;
getp.info("URL string Before accessing : "+urlString);
System.out.println("URL string Before accessing : "+urlString);
java.util.Properties properties = System.getProperties();
Security.addProvider(new Provider());
properties.put("java.protocol.handler.pkgs", "com.sun.net.ssl.internal.www.protocol");
System.setProperties(properties);
getp.info("URL STRING : " + urlString);
System.out.println("URL STRING : " + urlString);
String userId = gitResource.getString("userid");
String finalURLString ="";
getp.info(" file format "+desfileFormat);
System.out.println(" file format "+desfileFormat);
if(desfileFormat.equals("desformat=html"))
finalURLString = urlString + "?destype=file&desformat=html&server=ce&report="+rdfFileName+"&userid=" + userId + paramString;
else
finalURLString = urlString + "?destype=cache&desformat=pdf&server=ce&report="+rdfFileName+"&userid=" + userId + paramString;               
getp.info("Final String "+finalURLString);
System.out.println("Final String "+finalURLString);
url = new URL(finalURLString);               
int bfr = 128;
String aafilename = null;
String actfilename = null;
URLConnection uc = url.openConnection();
getp.info("1");
System.out.println("1");
uc.setRequestProperty("Content-Type","text/html; charset = windows-1256" );
String ct = uc.getContentType();
getp.info("2");
System.out.println("2");
int cl = uc.getContentLength();
getp.info("3");
System.out.println("3");               
getp.info("4");
System.out.println("4");
InputStream theImage = uc.getInputStream();
getp.info("5");
System.out.println("5");
byte[] b = new byte[cl];
int bytesread = 0;
int offset = 0;
int tempoffset = 0;
getp.info("6");
System.out.println("6");
while (bytesread >= 0) {
if ((cl - offset) < 128)
bfr = cl - offset;
getp.info("7");
System.out.println("7");
bytesread = theImage.read(b, offset, bfr);
tempoffset = offset;
if (bytesread == -1) break;
offset += bytesread;
     getp.info("8");
     System.out.println("8");
                    if (offset != cl) {
System.err.println("Error: Only read " + offset + " bytes");
System.err.println("Expected " + cl + " bytes");
getp.info("9");
System.out.println("9");
String theFile = url.getFile();
theFile = theFile.substring(theFile.lastIndexOf('/') + 1);
String randomno = null;
getp.info("10");
System.out.println("10");                    
getp.info(" rep src folder with path "+reportSourceFolderWithPath);
System.out.println(" rep src folder with path "+reportSourceFolderWithPath);
getp.info(" outputfile "+outputFileName);
System.out.println(" outputfile "+outputFileName);
filePath = reportSourceFolderWithPath + outputFileName;
FileOutputStream fout = new FileOutputStream(filePath);
getp.info("Writing file for after getting result from reports :"+filePath);
System.out.println("Writing file for after getting result from reports :"+filePath);
getp.info("12");
System.out.println("12");
fout.write(b);
getp.info("122");
System.out.println("122");
          catch (Exception e)
               throw new InterruptedException(e.getMessage());
               return filePath;
     // end of code
Regards
Mirza

Answer 1

Mirza,
Please post the entire error message and stack trace you are getting.
Since you say the code you posted is from a servlet, then what servlet engine are you using? You seem to imply that it is Oracle Application Server. Or maybe it's just OC4J stand-alone? Please provide details of the application server you are using.
By the way, you can use the [ code ] and [ /code ] tags (without the spaces) to format your code.
Good Luck,
Avi.