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/*******************************************************************************
* <copyright>
*
* Copyright (c) 2012 SAP AG and others.
* 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:
* Petya Sabeva - initial API, implementation and documentation
*
* </copyright>
*
*******************************************************************************/
package org.eclipse.jpt.jpadiagrameditor.ui.internal.command;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jface.text.Document;
import org.eclipse.jpt.common.core.resource.java.JavaResourceType;
import org.eclipse.jpt.common.utility.command.Command;
import org.eclipse.jpt.jpa.core.context.PersistentType;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.JPADiagramEditorPlugin;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.util.JPAEditorUtil;
import org.eclipse.text.edits.DeleteEdit;
import org.eclipse.text.edits.InsertEdit;
import org.eclipse.text.edits.MalformedTreeException;
import org.eclipse.text.edits.MultiTextEdit;
import org.eclipse.text.edits.TextEdit;
import org.eclipse.text.edits.TextEditCopier;
public class CreateEntityTypeHierarchy implements Command {
private PersistentType subclass;
private PersistentType superclass;
private boolean shouldCreate;
public CreateEntityTypeHierarchy(PersistentType superclass, PersistentType subclass, boolean shouldCreate) {
super();
this.superclass = superclass;
this.subclass = subclass;
this.shouldCreate = shouldCreate;
}
public void execute() {
buildHierarchy(superclass, subclass, shouldCreate);
JavaResourceType jrt = subclass.getJavaResourceType();
jrt.getJavaResourceCompilationUnit().synchronizeWithJavaSource();
}
private void buildHierarchy(PersistentType superclass,
PersistentType subclass, boolean build) {
try {
ICompilationUnit subCU = JPAEditorUtil.getCompilationUnit(subclass);
final Document document = new Document(subCU.getBuffer()
.getContents());
MultiTextEdit edit = new MultiTextEdit();
String str = document.get();
if (build) {
int offset = str.indexOf(subclass.getSimpleName())
+ subclass.getSimpleName().length();
edit.addChild(new InsertEdit(offset, " extends " //$NON-NLS-1$
+ superclass.getSimpleName()));
} else {
int length = ("extends " + superclass.getSimpleName() + " ") //$NON-NLS-1$ //$NON-NLS-2$
.length();
int offset = str.indexOf("extends"); //$NON-NLS-1$
edit.addChild(new DeleteEdit(offset, length));
}
TextEditCopier copier = new TextEditCopier(edit);
TextEdit copy = copier.perform();
subCU.applyTextEdit(copy, new NullProgressMonitor());
} catch (CoreException exception) {
JPADiagramEditorPlugin.logError(exception);
} catch (MalformedTreeException exception) {
JPADiagramEditorPlugin.logError(exception);
}
}
}
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