/**
* Compress a list of js files into one combined string
*
* @param a list of js files
* @return a string that contains all the compressed data
* @throws EvaluatorException
* @throws IOException
*/
private static String compressJS(Collection<IDiagramPlugin> plugins, ServletContext context) {
StringWriter sw = new StringWriter();
for (IDiagramPlugin plugin : plugins) {
sw.append("/* ").append(plugin.getName()).append(" */\n");
InputStream input = plugin.getContents();
try {
JavaScriptCompressor compressor =
new JavaScriptCompressor(new InputStreamReader(input), null);
compressor.compress(sw, -1, false, false, false, false);
} catch (EvaluatorException e) {
_logger.error(e.getMessage(), e);
} catch (IOException e) {
_logger.error(e.getMessage(), e);
} finally {
try {
input.close();
} catch (IOException e) {
}
}
sw.append("\n");
}
return sw.toString();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
Document doc = (Document) _doc.clone();
String profileName = request.getParameter("profile");
if (profileName == null || profileName.length() < 1) {
// default to jbpm
profileName = "jbpm";
}
IDiagramProfile profile = _profileService.findProfile(request, profileName);
if (profile == null) {
_logger.error("No profile with the name " + profileName + " was registered");
throw new IllegalArgumentException(
"No profile with the name " + profileName + " was registered");
}
IDiagramPreprocessingUnit preprocessingUnit = null;
if (_preProcess) {
if (_logger.isInfoEnabled()) {
_logger.info("Performing diagram information pre-processing steps. ");
}
preprocessingUnit = _preProcessingService.findPreprocessingUnit(request, profile);
preprocessingUnit.preprocess(request, response, profile);
}
// output env javascript files
if (_devMode) {
for (String jsFile : _envFiles) {
addScript(doc, oryx_path + jsFile, true);
}
} else {
addScript(doc, oryx_path + "jsc/env_combined.js", true);
}
// generate script tags for plugins.
// they are located after the initialization script.
if (_pluginfiles.get(profileName) == null) {
List<IDiagramPlugin> compressed = new ArrayList<IDiagramPlugin>();
List<IDiagramPlugin> uncompressed = new ArrayList<IDiagramPlugin>();
_pluginfiles.put(profileName, compressed);
_uncompressedPlugins.put(profileName, uncompressed);
for (String pluginName : profile.getPlugins()) {
IDiagramPlugin plugin = _pluginService.findPlugin(request, pluginName);
if (plugin == null) {
_logger.warn(
"Could not find the plugin "
+ pluginName
+ " requested by the profile "
+ profile.getName());
continue;
}
if (plugin.isCompressable()) {
compressed.add(plugin);
} else {
uncompressed.add(plugin);
}
}
if (!_devMode) {
// let's call the compression routine
String rs = compressJS(_pluginfiles.get(profileName), getServletContext());
try {
FileWriter w =
new FileWriter(getServletContext().getRealPath("jsc/plugins_" + profileName + ".js"));
w.write(rs.toString());
w.close();
} catch (Exception e) {
_logger.error(e.getMessage(), e);
}
}
}
if (_devMode) {
for (IDiagramPlugin jsFile : _pluginfiles.get(profileName)) {
addScript(doc, oryx_path + "plugin/" + jsFile.getName() + ".js", true);
}
} else {
addScript(doc, oryx_path + "jsc/plugins_" + profileName + ".js", false);
}
for (IDiagramPlugin uncompressed : _uncompressedPlugins.get(profileName)) {
addScript(doc, oryx_path + "plugin/" + uncompressed.getName() + ".js", false);
}
// send the updated editor.html to client
if (!isIE(request)) {
response.setContentType("application/xhtml+xml");
}
XMLOutputter outputter = new XMLOutputter();
Format format = Format.getPrettyFormat();
format.setExpandEmptyElements(true);
outputter.setFormat(format);
String html = outputter.outputString(doc);
StringTokenizer tokenizer = new StringTokenizer(html, "@", true);
StringBuilder resultHtml = new StringBuilder();
boolean tokenFound = false;
boolean replacementMade = false;
IDiagramPreference pref = PREFERENCE_FACTORY.createPreference(request);
int autoSaveInt = pref.getAutosaveInterval();
boolean autoSaveOn = pref.isAutoSaveEnabled();
while (tokenizer.hasMoreTokens()) {
String elt = tokenizer.nextToken();
if ("title".equals(elt)) {
resultHtml.append(profile.getTitle());
replacementMade = true;
} else if ("stencilset".equals(elt)) {
resultHtml.append(profile.getStencilSet());
replacementMade = true;
} else if ("debug".equals(elt)) {
resultHtml.append(_devMode);
replacementMade = true;
} else if ("autosaveinterval".equals(elt)) {
resultHtml.append(autoSaveInt);
replacementMade = true;
} else if ("autosavedefault".equals(elt)) {
resultHtml.append(autoSaveOn);
replacementMade = true;
} else if ("preprocessing".equals(elt)) {
resultHtml.append(preprocessingUnit == null ? "" : preprocessingUnit.getOutData());
replacementMade = true;
} else if ("externalprotocol".equals(elt)) {
resultHtml.append(ExternalInfo.getExternalProtocol(profile));
replacementMade = true;
} else if ("externalhost".equals(elt)) {
resultHtml.append(ExternalInfo.getExternalHost(profile));
replacementMade = true;
} else if ("externalsubdomain".equals(elt)) {
resultHtml.append(
profile
.getExternalLoadURLSubdomain()
.substring(0, profile.getExternalLoadURLSubdomain().indexOf("/")));
replacementMade = true;
} else if ("designerversion".equals(elt)) {
resultHtml.append(_designerVersion);
replacementMade = true;
} else if ("profileplugins".equals(elt)) {
StringBuilder plugins = new StringBuilder();
boolean commaNeeded = false;
for (String ext : profile.getPlugins()) {
if (commaNeeded) {
plugins.append(",");
} else {
commaNeeded = true;
}
plugins.append("\"").append(ext).append("\"");
}
resultHtml.append(plugins.toString());
replacementMade = true;
} else if ("ssextensions".equals(elt)) {
StringBuilder ssexts = new StringBuilder();
boolean commaNeeded = false;
for (String ext : profile.getStencilSetExtensions()) {
if (commaNeeded) {
ssexts.append(",");
} else {
commaNeeded = true;
}
ssexts.append("\"").append(ext).append("\"");
}
resultHtml.append(ssexts.toString());
replacementMade = true;
} else if ("@".equals(elt)) {
if (replacementMade) {
tokenFound = false;
replacementMade = false;
} else {
tokenFound = true;
}
} else {
if (tokenFound) {
tokenFound = false;
resultHtml.append("@");
}
resultHtml.append(elt);
}
}
response.getWriter().write(resultHtml.toString());
}