/* ====================================================================
*
* The ObjectStyle Group Software License, Version 1.0
*
* Copyright (c) 2007 The ObjectStyle Group
* and individual authors of the software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* ObjectStyle Group (http://objectstyle.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "ObjectStyle Group" and "Cayenne"
* must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact andrus@objectstyle.org.
*
* 5. Products derived from this software may not be called "ObjectStyle"
* nor may "ObjectStyle" appear in their names without prior written
* permission of the ObjectStyle Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE OBJECTSTYLE GROUP OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the ObjectStyle Group. For more
* information on the ObjectStyle Group, please see
* <http://objectstyle.org/>.
*
*/
package org.objectstyle.wolips.jdt.ui;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
import org.eclipse.jdt.internal.ui.packageview.PackageFragmentRootContainer;
import org.eclipse.jdt.ui.JavaElementComparator;
import org.eclipse.jface.viewers.Viewer;
import org.objectstyle.wolips.jdt.ui.tags.TaggedComponentsContentProvider;
public class WOJavaElementComparator extends JavaElementComparator {
private Set<String> _bundleExtensions;
public WOJavaElementComparator() {
_bundleExtensions = new HashSet<String>();
_bundleExtensions.add("wo");
_bundleExtensions.add("eomodeld");
}
@Override
public int compare(Viewer viewer, Object e1, Object e2) {
if (e1 instanceof IResource && e2 instanceof IResource) {
String name1 = ((IResource) e1).getName();
String extension1 = null;
int dot1 = name1.lastIndexOf('.');
if (dot1 != -1) {
extension1 = name1.substring(dot1 + 1);
}
String name2 = ((IResource) e2).getName();
String extension2 = null;
int dot2 = name2.lastIndexOf('.');
if (dot2 != -1) {
extension2 = name2.substring(dot2 + 1);
}
if (_bundleExtensions.contains(extension1)) {
if (e2 instanceof IFile || _bundleExtensions.contains(extension2)) {
return name1.compareTo(name2);
}
else if (e2 instanceof IContainer) {
return 1;
}
}
else if (_bundleExtensions.contains(extension2)) {
if (e1 instanceof IFile) {
return name1.compareTo(name2);
}
else if (e1 instanceof IContainer) {
return -1;
}
}
}
else if (e1 instanceof TaggedComponentsContentProvider || e2 instanceof TaggedComponentsContentProvider) {
IPackageFragmentRoot root1 = getPackageFragmentRoot(e1);
IPackageFragmentRoot root2 = getPackageFragmentRoot(e2);
if (root1 == null && root2 == null) {
if (e1 instanceof TaggedComponentsContentProvider) {
return -1;
}
return 1;
}
if (root1 != null) {
return -1;
}
return 1;
}
return super.compare(viewer, e1, e2);
}
private IPackageFragmentRoot getPackageFragmentRoot(Object element) {
if (element instanceof PackageFragmentRootContainer) {
// return first package fragment root from the container
PackageFragmentRootContainer cp = (PackageFragmentRootContainer) element;
Object[] roots = cp.getPackageFragmentRoots();
if (roots.length > 0)
return (IPackageFragmentRoot) roots[0];
// non resolvable - return null
return null;
}
if (!(element instanceof IJavaElement)) {
return null;
}
return JavaModelUtil.getPackageFragmentRoot((IJavaElement) element);
}
}