/** | |
* Copyright (c) 2009-2010 Thales Corporate Services S.A.S. | |
* 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: | |
* Thales Corporate Services S.A.S - initial API and implementation | |
*/ | |
package org.eclipse.egf.core.ui.dialogs; | |
import org.eclipse.core.runtime.CoreException; | |
import org.eclipse.core.runtime.IStatus; | |
import org.eclipse.core.runtime.NullProgressMonitor; | |
import org.eclipse.egf.core.ui.EGFCoreUIPlugin; | |
import org.eclipse.jdt.core.IJavaProject; | |
import org.eclipse.jdt.core.IType; | |
import org.eclipse.jdt.core.JavaModelException; | |
import org.eclipse.jdt.ui.dialogs.ITypeInfoFilterExtension; | |
import org.eclipse.jdt.ui.dialogs.ITypeInfoRequestor; | |
import org.eclipse.jdt.ui.dialogs.TypeSelectionExtension; | |
/** | |
* @author Xavier Maysonnave | |
* | |
*/ | |
public class SubTypeSelectionExtension extends TypeSelectionExtension { | |
private IJavaProject _javaProject; | |
private IType _type; | |
private IType[] _subTypes; | |
public SubTypeSelectionExtension(IType type) throws CoreException { | |
try { | |
_javaProject = type.getJavaProject(); | |
_type = type; | |
_subTypes = type.newTypeHierarchy(_javaProject, new NullProgressMonitor()).getAllSubtypes(type); | |
} catch (Throwable t) { | |
throw new CoreException(EGFCoreUIPlugin.getDefault().newStatus(IStatus.ERROR, t.getMessage(), t)); | |
} | |
} | |
/** | |
* Returns the filter extension or <code>null</code> if | |
* no additional filtering is required. | |
* | |
* @return the additional filter extension | |
*/ | |
@Override | |
public ITypeInfoFilterExtension getFilterExtension() { | |
return new ITypeInfoFilterExtension() { | |
public boolean select(ITypeInfoRequestor typeInfoRequestor) { | |
// Retrieve IType | |
IType type = null; | |
try { | |
type = _javaProject.findType(typeInfoRequestor.getPackageName() + "." + typeInfoRequestor.getTypeName()); //$NON-NLS-1$ | |
} catch (JavaModelException jme) { | |
EGFCoreUIPlugin.getDefault().logError(jme); | |
} | |
if (type == null) { | |
return false; | |
} | |
// Always return myself | |
if (type.equals(_type)) { | |
return true; | |
} | |
// Check whether or not we are a subtype | |
if (_subTypes != null) { | |
for (IType subType : _subTypes) { | |
if (subType.equals(type)) { | |
return true; | |
} | |
} | |
} | |
return false; | |
} | |
}; | |
} | |
} |