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/*******************************************************************************
* Copyright (c) 2000, 2005 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.internal.ui.sourcelookup;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.debug.core.IStatusHandler;
import org.eclipse.debug.internal.ui.DebugUIPlugin;
import org.eclipse.debug.ui.sourcelookup.CommonSourceNotFoundEditor;
import org.eclipse.jface.window.Window;
import org.eclipse.ui.dialogs.ElementListSelectionDialog;
/**
* Status handler to prompt for duplicate source element resolution.
*
* @since 3.0
*/
public class ResolveDuplicatesHandler implements IStatusHandler {
/* (non-Javadoc)
* @see org.eclipse.debug.core.IStatusHandler#handleStatus(org.eclipse.core.runtime.IStatus, java.lang.Object)
*/
@Override
public Object handleStatus(IStatus status, Object source) throws CoreException {
Object[] args = (Object[])source;
List<?> sources = (List<?>) args[1];
return resolveSourceElement(sources);
}
public Object resolveSourceElement(List<?> sources) {
Object file = null;
sources = removeSourceNotFoundEditors(sources);
if(sources.size() == 1) {
return sources.get(0);
} else if(sources.size() == 0) {
return null;
}
ElementListSelectionDialog dialog = new ElementListSelectionDialog(DebugUIPlugin.getShell(), new SourceElementLabelProvider());
dialog.setMultipleSelection(false);
dialog.setTitle(SourceLookupUIMessages.ResolveDuplicatesHandler_0);
dialog.setMessage(SourceLookupUIMessages.ResolveDuplicatesHandler_1);
dialog.setElements(sources.toArray());
dialog.open();
if(dialog.getReturnCode() == Window.OK) {
file = dialog.getFirstResult();
}
return file;
}
/**
* Remove extra source not found editors, if any.
* If multiple source not found editors and no "real" source inputs,
* return the first source not found editor.
* @param sources the list to be filtered
* @return the filtered list, may be empty
*/
private List<Object> removeSourceNotFoundEditors(List<?> sources) {
List<Object> filteredList = new ArrayList<>();
for (Object obj : sources) {
if (!(obj instanceof CommonSourceNotFoundEditor)) {
filteredList.add(obj);
}
}
if (filteredList.isEmpty() && sources.get(0) != null) {
filteredList.add(sources.get(0));
}
return filteredList;
}
}
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