/** Retrieves the current {@link IProject} instance based on the currently opened editor. */
public static IProject getCurrentProjectForOpenEditor() {
IWorkbenchWindow activeWorkbenchWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
if (activeWorkbenchWindow != null && activeWorkbenchWindow.getActivePage() != null) {
IEditorPart p = activeWorkbenchWindow.getActivePage().getActiveEditor();
if (p == null) {
IWorkbenchPart activePart = activeWorkbenchWindow.getActivePage().getActivePart();
if (activePart instanceof PropertySheet) {
ShowInContext showInContext = ((PropertySheet) activePart).getShowInContext();
if (showInContext instanceof PropertyShowInContext) {
IWorkbenchPart part = ((PropertyShowInContext) showInContext).getPart();
if (part instanceof IEditorPart) {
p = (IEditorPart) part;
} else {
JasperReportsPlugin.getDefault()
.logWarning("Unable to retrieve the current project for the open editor.");
return null;
}
}
}
}
IEditorInput editorInput = p.getEditorInput();
IFile file = getFile(editorInput);
if (file != null) {
return file.getProject();
}
}
return null;
}
/**
* Retrieves the list of functions contributed in the specified class reference.
*
* <p>The method seeks for annotated methods with the annotation {@link JRExprFunction} in order
* to build the basic set of functions, and then scan for similar ones to decide which parameters
* are mandatory and which optional.
*
* @param clazz the class reference that is supposed to contain expression functions
* @return a list of JR expression functions
*/
public List<JRExprFunctionBean> getFunctionsList(Class<?> clazz) {
Map<String, List<Method>> methodsCache = buildAnnotatedMethodsCache(clazz);
List<JRExprFunctionBean> functionsList = new ArrayList<JRExprFunctionBean>();
for (String functionName : methodsCache.keySet()) {
try {
JRExprFunctionBean jrFunction = createJRFunction(methodsCache.get(functionName), clazz);
functionsList.add(jrFunction);
} catch (Exception ex) {
JasperReportsPlugin.getDefault()
.logError(
NLS.bind(
"Unable to create the function ''{0}'' from class ''{1}''. See full stacktrace.",
functionName, clazz.getCanonicalName()),
ex);
}
}
return functionsList;
}