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/*******************************************************************************
* Copyright (c) 2003, 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.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.debug.core.sourcelookup.ISourceContainer;
import org.eclipse.debug.core.sourcelookup.containers.AbstractSourceContainerTypeDelegate;
import org.eclipse.debug.ui.sourcelookup.WorkingSetSourceContainer;
import org.eclipse.ui.IWorkingSet;
import org.eclipse.ui.PlatformUI;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
/**
* The factory for creating/restoring working set source containers.
*
* @since 3.0
*/
public class WorkingSetSourceContainerType extends AbstractSourceContainerTypeDelegate {
/* (non-Javadoc)
* @see org.eclipse.debug.internal.core.sourcelookup.ISourceContainerTypeDelegate#getMemento(org.eclipse.debug.internal.core.sourcelookup.ISourceContainer)
*/
@Override
public String getMemento(ISourceContainer container) throws CoreException {
WorkingSetSourceContainer workingSet = (WorkingSetSourceContainer) container;
Document doc = newDocument();
Element node = doc.createElement("workingSet"); //$NON-NLS-1$
node.setAttribute("name", workingSet.getName()); //$NON-NLS-1$
doc.appendChild(node);
return serializeDocument(doc);
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.core.sourcelookup.ISourceContainerType#createSourceContainer(java.lang.String)
*/
@Override
public ISourceContainer createSourceContainer(String memento)throws CoreException {
IWorkingSet workingSet = null;
Exception ex = null;
try {
Element root = null;
DocumentBuilder parser =
DocumentBuilderFactory.newInstance().newDocumentBuilder();
parser.setErrorHandler(new DefaultHandler());
StringReader reader = new StringReader(memento);
InputSource source = new InputSource(reader);
root = parser.parse(source).getDocumentElement();
String name = root.getAttribute("name");//$NON-NLS-1$
if (isEmpty(name)) {
abort(SourceLookupUIMessages.sourceSearch_initError,null);
}
workingSet = PlatformUI.getWorkbench().getWorkingSetManager().getWorkingSet(name);
//check that set still exists
if (workingSet == null) {
abort(SourceLookupUIMessages.sourceSearch_initError, null);
}
return new WorkingSetSourceContainer(workingSet);
} catch (ParserConfigurationException e) {
ex = e;
} catch (SAXException e) {
ex = e;
} catch (IOException e) {
ex = e;
}
abort(SourceLookupUIMessages.sourceSearch_initError, ex);
return null;
}
private boolean isEmpty(String string) {
return string == null || string.length() == 0;
}
}
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