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/*****************************************************************************
* Copyright (c) 2011 Nicolas Deblock & Manuel Giles.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Nicolas Deblock nico.deblock@gmail.com - Initial API and implementation
* Manuel Giles giles.manu@live.fr - Initial API and implementation
* Cedric Dumoulin Cedric.dumoulin@lifl.fr - Idea of the java generator project & help for the conception
*
*****************************************************************************/
package org.eclipse.papyrus.java.generator.ui.handlers;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.emf.common.util.BasicEList;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TreeSelection;
import org.eclipse.papyrus.java.generator.jdtsynchronizer.RunGenerator;
import org.eclipse.papyrus.java.generator.metamodel.jdt.jdtmm.visitor.JDTVisitorException;
import org.eclipse.papyrus.java.generator.ui.Activator;
import org.eclipse.papyrus.java.generator.ui.preference.GeneratorPreferenceImpl;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PlatformUI;
import org.eclipse.uml2.uml.NamedElement;
/**
* Handler used to launch Java code generation from a selected UML element.
*
* @author Cedric dumoulin
*
*/
public class GenerateJavaCodeHandler extends AbstractHandler implements IHandler {
/**
* @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
* @param event
* @return
* @throws ExecutionException
*
*/
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
// Get selection
// Can't be done in the job.
List<Object> objects = lookupSelectedElements();
// Execute handler
doExecute(objects);
return null;
}
/**
* Get the name used in the {@link RecordingCommand}. This name will be visible in
* undo/redo.
*
* @return The command name to show.
*/
public String getCommandName() {
return "Generate Java Code";
}
/**
* Return a list of selected domain (UML) elements.
*
* @return
*/
protected List<NamedElement> getSelectedUmlObject() {
List<Object> selections = lookupSelectedElements();
List<NamedElement> results = new ArrayList<NamedElement>();
// create model with EList<EObject> objects
for (Object obj : selections) {
// Adapt object to NamedElement
NamedElement ele = null;
if (obj instanceof IAdaptable) {
ele = (NamedElement) ((IAdaptable) obj).getAdapter(NamedElement.class);
}
if (ele == null) {
ele = (NamedElement) Platform.getAdapterManager().getAdapter(obj, NamedElement.class);
}
// Add uml element if found
if (ele != null) {
results.add(ele);
}
}
return results;
}
/**
* Do the execution of the command.
*
* @param objects
* List of object to generate Java code from.
*/
protected void doExecute(final List<Object> objects) {
Job job = new Job("Generate java classes ") {
@Override
protected IStatus run(IProgressMonitor monitor) {
// execute the task ...
try {
IStatus status = doExecute(monitor, objects);
monitor.done();
return status;
}
catch (Exception e) {
return new Status(IStatus.ERROR, Activator.PLUGIN_ID, e.getMessage(), e);
}
finally {
}
}
};
job.setUser(true);
job.schedule();
}
/**
* Do the execution of the command.
*
* @param objects
* List of object to generate Java code from.
*/
protected IStatus doExecute(IProgressMonitor monitor, List<Object> objects) {
monitor.beginTask("Generate ...", 3);
// create a EList<EObject> who is the model
EList<EObject> model = new BasicEList<EObject>();
// create model with EList<EObject> objects
for (Object obj : objects) {
// Adapt object to NamedElement
NamedElement ele = null;
if (obj instanceof IAdaptable) {
ele = (NamedElement) ((IAdaptable) obj).getAdapter(NamedElement.class);
}
if (ele == null) {
ele = (NamedElement) Platform.getAdapterManager().getAdapter(obj, NamedElement.class);
}
// Add uml element if found
if (ele != null) {
model.add(ele);
}
}
monitor.worked(1);
// recover window
// IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
// Check if there is a right selection
if (model.size() <= 0) {
String msg = "No UML element selected. Please select one or more UML element to generate";
// MessageDialog.openInformation(window.getShell(),"No Selection", msg);
return new Status(IStatus.ERROR, Activator.PLUGIN_ID, msg);
}
// error message
String message = "";
try {
// run code generator
RunGenerator runGen = new RunGenerator(model);
runGen.runGeneration(new GeneratorPreferenceImpl());
} catch (JDTVisitorException e) {
// error message
StringBuffer stackTrace = new StringBuffer();
for (StackTraceElement trace : e.getStackTrace()) {
stackTrace.append("at " + trace.getMethodName() + "(" + trace.getClassName() + ":" + trace.getLineNumber() + ")\n");
}
IStatus status = new Status(IStatus.ERROR, Activator.PLUGIN_ID, e.getMessage(), e);
// ErrorDialog errDg = new ErrorDialog(window.getShell(), "Error encountered during code generation",
// "Error encountered during code generation",
// status,
// Status.ERROR);
// errDg.open();
return status;
}
// if(message.isEmpty()) message = "Code generated successfully!";
monitor.worked(2);
// MessageDialog.openInformation(window.getShell(),"Code generation",message);
return Status.OK_STATUS;
}
/**
* Lookup selected objects in UI.
*
* @return
*/
private List<Object> lookupSelectedElements() {
IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
ISelection selection = page.getSelection();
// System.out.println("check " + selection);
if (selection instanceof IStructuredSelection)
{
IStructuredSelection structuredSelection = (IStructuredSelection) selection;
return structuredSelection.toList();
}
else if (selection instanceof TreeSelection) {
TreeSelection treeSelection = (TreeSelection) selection;
return treeSelection.toList();
}
return null;
}
}
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