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/*******************************************************************************
* Copyright (c) 2004 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.wst.ws.internal.explorer.platform.engine.transformer;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Vector;
import org.eclipse.wst.ws.internal.datamodel.Element;
import org.eclipse.wst.ws.internal.explorer.platform.datamodel.ListElement;
import org.eclipse.wst.ws.internal.explorer.platform.datamodel.ListManager;
import org.eclipse.wst.ws.internal.explorer.platform.datamodel.TreeElement;
import org.eclipse.wst.ws.internal.explorer.platform.perspective.Controller;
import org.eclipse.wst.ws.internal.explorer.platform.perspective.Node;
import org.eclipse.wst.ws.internal.explorer.platform.perspective.NodeManager;
public class ViewSelectionTransformer implements ITransformer
{
protected Controller controller;
protected String listManagerKey;
protected String viewKey;
public ViewSelectionTransformer(Controller controller, String listManagerKey, String viewKey)
{
this.controller = controller;
this.listManagerKey = listManagerKey;
this.viewKey = viewKey;
}
public Hashtable normalize(Hashtable properties)
{
Vector normalizedViewIds = new Vector();
NodeManager nodeManager = controller.getCurrentPerspective().getNodeManager();
Node currNode = nodeManager.getSelectedNode();
TreeElement currElement = currNode.getTreeElement();
Object listManagerObj = currElement.getPropertyAsObject(listManagerKey);
if (listManagerObj instanceof ListManager)
{
ListManager listManager = (ListManager) listManagerObj;
String[] viewIds = getViewValues(properties);
for (int i = 0; i < viewIds.length; i++)
{
ListElement listElement = null;
try
{
listElement = listManager.getElementWithViewId(Integer.parseInt(viewIds[i]));
}
catch (NumberFormatException nfe)
{
}
if (listElement != null)
{
Object object = listElement.getObject();
if (object != null && object instanceof Element)
{
Element element = (Element) object;
normalizedViewIds.add(element.getName());
}
}
}
}
properties.put(viewKey, normalizedViewIds.toArray(new String[0]));
return properties;
}
public Hashtable deNormalize(Hashtable properties)
{
Vector viewIds = new Vector();
Node currNode = controller.getCurrentPerspective().getNodeManager().getSelectedNode();
if (currNode != null)
{
TreeElement currElement = currNode.getTreeElement();
Object listManagerObj = currElement.getPropertyAsObject(listManagerKey);
if (listManagerObj instanceof ListManager)
{
ListManager listManager = (ListManager) listManagerObj;
String[] normalizedViewIds = getViewValues(properties);
for (int i = 0; i < normalizedViewIds.length; i++)
{
Enumeration e = listManager.getListElements();
while (e.hasMoreElements())
{
ListElement listElement = (ListElement) e.nextElement();
Element element = (Element) listElement.getObject();
if (element != null && normalizedViewIds[i].equals(element.getName()))
{
viewIds.add(String.valueOf(listElement.getViewId()));
break;
}
}
}
}
}
int size = viewIds.size();
if (size == 1)
properties.put(viewKey, viewIds.get(0));
else if (size > 1)
properties.put(viewKey, viewIds.toArray(new String[0]));
return properties;
}
private String[] getViewValues(Hashtable properties)
{
Object viewValueObj = properties.get(viewKey);
String[] viewValues;
if (viewValueObj == null)
viewValues = new String[0];
else if (viewValueObj.getClass().isArray())
viewValues = (String[]) viewValueObj;
else
viewValues = new String[]{(String) viewValueObj};
return viewValues;
}
}
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