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/**
*
*/
package org.eclipse.papyrus.java.reverse.ui;
import java.util.Arrays;
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.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.transaction.RecordingCommand;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.papyrus.infra.core.editor.IMultiDiagramEditor;
import org.eclipse.papyrus.infra.core.services.ServiceException;
import org.eclipse.papyrus.infra.core.utils.EditorUtils;
import org.eclipse.papyrus.infra.core.utils.ServiceUtilsForActionHandlers;
import org.eclipse.papyrus.java.reverse.ui.dialog.ReverseCodeDialog;
import org.eclipse.papyrus.uml.tools.model.UmlUtils;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipse.uml2.uml.Package;
/**
* @author dumoulin
*
*/
public class ReverseCodeHandler extends AbstractHandler implements IHandler {
private static String DefaultGenerationModeleName = "generated";
/**
* Method called when button is pressed.
*/
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
// Try to find uml resource
final Resource umlResource;
try {
umlResource = getUmlResource();
} catch (NullPointerException e) {
// No uml resource available. User must open a model. We open an error dialog with an explicit message to advice user.
Shell shell = HandlerUtil.getActiveShell(event);
Status errorStatus = new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.ReverseCodeHandler_NoModelError_Title);
ErrorDialog.openError(shell, "", Messages.ReverseCodeHandler_NoModelError_Message, errorStatus);
// Stop the reverse execution.
return null;
}
;
String modelUid = getModelUid(umlResource);
System.out.println("Model uid :" + modelUid);
// Get reverse parameters from a dialog
Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActivePart().getSite().getShell();
// ReverseCodeDialog dialog = new ReverseCodeDialog(shell, DefaultGenerationPackageName, Arrays.asList("generated") );
final ReverseCodeDialog dialog = getDialog(shell, modelUid);
int res = dialog.open();
// System.out.println("dialog result =" + res);
if (res == Window.CANCEL) {
System.out.println("Canceled by user.");
return null;
}
// Execute the reverse with provided parameters
TransactionalEditingDomain editingDomain;
try {
editingDomain = getEditingDomain();
} catch (ServiceException e) {
// Can't get editing domain
e.printStackTrace();
throw new ExecutionException(e.getMessage());
}
RecordingCommand command = new RecordingCommand(editingDomain, "Reverse Java Code") {
@Override
protected void doExecute() {
ReverseCodeHandler.this.doExecute(dialog);
}
};
editingDomain.getCommandStack().execute(command);
return null;
}
/**
* Find the modelUid name contains into umlResource taken in parameter
*
* @param umlResource
* @return the modelUid name
*/
private String getModelUid(Resource umlResource) {
// Try to compute a uid identifying the model. Used to store user settings.
String modelUid = umlResource.getURI().toPlatformString(true);
if (modelUid == null) {
System.err.println("Can't compute relatif model uid. Use absolute one");
modelUid = umlResource.getURI().path();
}
return modelUid;
}
/**
* Command ran in a RecordingCommand, after the dialog
* Run the @link{JavaCodeReverse.executeCodeReverse}
* Shall be override to change command behavior
*/
protected void doExecute(ReverseCodeDialog dialog) {
// Create searchpaths. Add the rootmodelname as prefix.
final List<String> searchPaths = Arrays.asList(dialog.getSearchPath());
Resource umlResource = getUmlResource();
String packageName = getPackageName(dialog);
JavaCodeReverse reverse = new JavaCodeReverse(getRootPackage(umlResource), packageName, searchPaths);
reverse.executeCodeReverse(umlResource, packageName, searchPaths);
}
/**
* The dialog used for user.
*
* @param shell
* @param modelUid
* @return the dialog to show to user
*/
protected ReverseCodeDialog getDialog(Shell shell, String modelUid) {
return new ReverseCodeDialog(shell, modelUid, null, null);
}
/**
* Find the name of the model provided by the dialog
*
* @param dialog
* opened dialog to user
* @return the name of the model. If the user has changed this name, return the name provided by the user; return the default model name
* otherwise.
*/
protected String getPackageName(ReverseCodeDialog dialog) {
String generationPackageName = dialog.getValue();
if (generationPackageName == null || generationPackageName.length() == 0) {
generationPackageName = DefaultGenerationModeleName;
}
return generationPackageName;
}
/**
* Get the uml resource used by the model.
*
* @return the Uml Resource
*/
protected Resource getUmlResource() {
Resource umlResource = UmlUtils.getUmlModel().getResource();
return umlResource;
}
/**
* Get the name of the root model.
*
* @return
*/
protected Package getRootPackage(Resource umlResource) {
Package rootPackage = (Package) umlResource.getContents().get(0);
return rootPackage;
}
/**
* Get the current MultiDiagramEditor.
*
* @return
*/
protected IMultiDiagramEditor getMultiDiagramEditor() {
return EditorUtils.getMultiDiagramEditor();
}
/**
* Get the main editing doamin.
*
* @return
* @throws ServiceException
*/
protected TransactionalEditingDomain getEditingDomain() throws ServiceException {
return ServiceUtilsForActionHandlers.getInstance().getTransactionalEditingDomain();
}
}
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