/**
* This method will execute an update to the Sound Library. What this means is that it will do two
* things. The first thing it will do is upload the file described to the library folder. Next, it
* will execute an update to the SQl database with the information given. Becuase all of the
* fields must be filled out, it will throw an exception if any of them are left blank.
*
* <p>Once it executes the update, it will read the response from the server and will return a
* boolean value based on the response. A sucess will return a true and a failure will return a
* false.
*
* @return Success or Failure
* @throws java.lang.Exception
*/
public boolean executeUpload() throws Exception {
// Create a new ClientHTTPRequest
ClientHttpRequest post = new ClientHttpRequest(page_url);
// Set the parameters needed to update
post.setParameter("FileName", new File(file_path));
post.setParameter("Title", title);
post.setParameter("Author", author);
post.setParameter("Genre", genre);
post.setParameter("Tags", tags);
// Post the request and read in the response stream
InputStream response_stream = post.post();
// XML processing code modified from example at:
// http://java.sun.com/developer/technicalArticles/xml/JavaTechandXML/
// Get a new DocumentBuilder
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
// Parse the xml returned by the server
try {
reply = builder.parse(response_stream);
} catch (Exception e) {
// Pass it on up!
throw e;
}
// Get our list of errors. Hopefully 0 elements
NodeList errors = reply.getElementsByTagName("Error");
// NodeList warnings = reply.getElementsByTagName( "Warning" );
// get our list of successes. Hopefully 1
NodeList successes = reply.getElementsByTagName("Success");
// If there were successes, return true
if (successes.getLength() > 0) response = true;
// otherwise, return false. I didn't use an if-else statement because
// although there should never be a success AND a failure, I want to be
// able to handle it just in case.
if (errors.getLength() > 0) response = false;
// Finally, return the response
return (response);
}
