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/*******************************************************************************
* Copyright (c) 2007 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.xsd.ui.internal.common.properties.sections.appinfo;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.wst.xml.core.internal.XMLCorePlugin;
import org.eclipse.wst.xml.core.internal.catalog.provisional.ICatalog;
import org.eclipse.wst.xml.core.internal.catalog.provisional.ICatalogEntry;
import org.eclipse.wst.xml.core.internal.catalog.provisional.INextCatalog;
public class CategoryProvider
{
private ICatalog systemCatalog;
public CategoryProvider()
{
}
/**
* Extenders should implement and return a list of
* SpecificationForExtensionsSchema
* @return
*/
public List getCategories()
{
return new ArrayList();
}
/**
* Helper method to find the physical location of the schema
* in the XML Catalog
* @param namespaceURI
* @return physical location of the schema
*/
public String locateFileUsingCatalog(String namespaceURI)
{
retrieveCatalog();
ICatalogEntry[] entries = systemCatalog.getCatalogEntries();
for (int i = 0; i < entries.length; i++)
{
if (entries[i].getKey().equals(namespaceURI))
return entries[i].getURI();
}
return null;
}
private void retrieveCatalog()
{
if (systemCatalog != null)
return;
ICatalog defaultCatalog = XMLCorePlugin.getDefault().getDefaultXMLCatalog();
INextCatalog[] nextCatalogs = defaultCatalog.getNextCatalogs();
for (int i = 0; i < nextCatalogs.length; i++)
{
INextCatalog catalog = nextCatalogs[i];
ICatalog referencedCatalog = catalog.getReferencedCatalog();
if (referencedCatalog != null)
{
if (XMLCorePlugin.SYSTEM_CATALOG_ID.equals(referencedCatalog.getId()))
{
systemCatalog = referencedCatalog;
}
}
}
}
}
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