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/*******************************************************************************
* Copyright (c) 2006 Anyware Technologies. All rights reserved. This program
* and the accompanying materials are made available under the terms of the
* Eclipse Public License 2.0 which accompanies this distribution, and is
t https://www.eclipse.org/legal/epl-2.0/
t
t SPDX-License-Identifier: EPL-2.0
*
* Contributors: Jacques Lescot (Anyware Technologies) - initial API and
* implementation
******************************************************************************/
package org.eclipse.papyrus.infra.services.controlmode.ui;
import org.eclipse.emf.common.ui.dialogs.ResourceDialog;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.ui.EMFEditUIPlugin;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
/**
* A save-type {@link ResourceDialog resource dialog} that attempts to create the specified resource
* and load it, if it already exists.
*
*/
public class ControlResourceDialog extends ResourceDialog {
private EditingDomain domain;
private Resource controlResource;
private Resource currentResource;
private String defaultName;
/**
* The constructor
*
* @param parent
* @param theDomain
* @param theCurrentResource
* @param defaultName
*/
public ControlResourceDialog(Shell parent, EditingDomain theDomain, Resource theCurrentResource, String defaultName) {
super(parent, EMFEditUIPlugin.INSTANCE.getString("_UI_ControlDialog_title"), SWT.SAVE); //$NON-NLS-1$
this.domain = theDomain;
this.currentResource = theCurrentResource;
this.defaultName = defaultName;
}
private String computeDefaultURI() {
String ext = currentResource.getURI().fileExtension();
URI uri = currentResource.getURI().trimSegments(1);
uri = uri.appendSegment(defaultName).appendFileExtension(ext);
return uri.toString();
}
@Override
protected Control createContents(Composite parent) {
Control result = super.createContents(parent);
this.uriField.setText(computeDefaultURI());
return result;
}
/**
* Creates and, if it already exists, loads the specified resource. This implementation verifies
* that a resource can be opened for that URI, that the resource is not the object's current
* container, and that it is not read-only in the editing domain. If there is an existing
* resource with that URI, it prompts before overriding or adding to it.
*
* @see org.eclipse.emf.common.ui.dialogs.ResourceDialog#processResources()
*/
@Override
protected boolean processResources() {
URI uri = URI.createURI(getURIText());
ResourceSet resourceSet = domain.getResourceSet();
Resource resource = resourceSet.getResource(uri, false);
boolean resourceInSet = resource != null;
if (resource == currentResource) {
MessageDialog.openError(getShell(), EMFEditUIPlugin.INSTANCE.getString("_UI_InvalidURI_label"), EMFEditUIPlugin.INSTANCE.getString("_WARN_AlreadyInResource")); //$NON-NLS-1$ //$NON-NLS-2$
return false;
}
if (domain.isReadOnly(resource)) {
MessageDialog.openError(getShell(), EMFEditUIPlugin.INSTANCE.getString("_UI_InvalidURI_label"), EMFEditUIPlugin.INSTANCE.getString("_WARN_ReadOnlyResource")); //$NON-NLS-1$ //$NON-NLS-2$
return false;
}
boolean resourceExists = resourceSet.getURIConverter().exists(uri, null);
boolean resourceBad = false;
if (!resourceInSet) {
resource = resourceSet.createResource(uri);
if (resource == null) {
MessageDialog.openError(getShell(), EMFEditUIPlugin.INSTANCE.getString("_UI_InvalidURI_label"), EMFEditUIPlugin.INSTANCE.getString("_WARN_CannotCreateResource")); //$NON-NLS-1$ //$NON-NLS-2$
return false;
}
if (resourceExists) {
try {
resource = resourceSet.getResource(uri, true);
} catch (RuntimeException exception) {
EMFEditUIPlugin.INSTANCE.log(exception);
resourceBad = resource.getContents().isEmpty();
}
}
}
boolean result = true;
if (resourceBad) {
result = MessageDialog.openQuestion(getShell(), EMFEditUIPlugin.INSTANCE.getString("_UI_ExistingResource_label"), EMFEditUIPlugin.INSTANCE.getString("_WARN_ReplaceResource")); //$NON-NLS-1$ //$NON-NLS-2$
} else if (resourceExists) {
result = MessageDialog.openQuestion(getShell(), EMFEditUIPlugin.INSTANCE.getString("_UI_ExistingResource_label"), EMFEditUIPlugin.INSTANCE.getString("_WARN_AddToResource")); //$NON-NLS-1$ //$NON-NLS-2$
}
if (!result && !resourceInSet && resource != null) {
resource.unload();
resourceSet.getResources().remove(resource);
} else {
this.controlResource = resource;
}
return result;
}
/**
* Return the created Resource
*
* @return the Resource
*/
public Resource getControlResource() {
return controlResource;
}
}
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