public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String path = request.getPathInfo();
boolean htmlOutput = true;
String language = null;
String contentType = "text/html; charset='utf-8'";
if (path != null) {
if (path.endsWith(".rdf")) {
contentType = "application/rdf+xml; charset='utf-8'";
htmlOutput = false;
language = "RDF/XML";
} else if (path.endsWith(".xml")) {
contentType = "application/xml; charset='utf-8'";
htmlOutput = false;
language = "RDF/XML";
} else if (path.endsWith(".n3")) {
contentType = "text/n3; charset='utf-8'";
htmlOutput = false;
language = "N3";
}
}
response.setContentType(contentType);
response.setStatus(HttpServletResponse.SC_OK);
Writer writer = response.getWriter();
synchronized (board) {
if (htmlOutput) {
writer.write(
"<!DOCTYPE html>\n"
+ "<html lang='en'>"
+ "<head><meta charset='utf-8'/><title>MATe model</title></head>"
+ "<body><ul>");
StmtIterator it = model.listStatements();
/* TODO: well, this could be prettier */
while (it.hasNext()) writer.write("<li>" + it.nextStatement() + "</li>");
writer.write("<ul></body></html>");
} else model.write(writer, language);
}
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
String diagramUXF = req.getParameter("diagramUXF");
// Get an output stream suitable for writing binary
// data to the client.
ServletOutputStream respOutputStream = resp.getOutputStream();
// Umlet should behave as if running from command line, e.g.
// as if being called by
// "-action=convert -format=svg -filename=inputfile.uxf"
Program.RUNTIME_TYPE = RuntimeType.BATCH;
// OutputHandler performs conversion from UXF to SVG and
// requires DiagramHandler object for representing a UXF
// document, which requires that the UXF is accessible
// through a File interface.
//
// Create a temporary file and write UXF to it.
// Take hash of UXF for good enough uniqueness.
String tempSuffix = new Integer(diagramUXF.hashCode()).toString();
File temp = File.createTempFile(tempSuffix, ".tmp");
FileWriter tempWriter = new FileWriter(temp);
tempWriter.write(diagramUXF);
tempWriter.close();
DiagramHandler diagramHandler = new DiagramHandler(temp);
// Convert to SVG and write out binary data to client.
try {
OutputHandler.createToStream("svg", respOutputStream, diagramHandler);
} catch (Exception e) {
throw new ServletException(e);
}
// Flush to commit the response.
respOutputStream.flush();
}