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/*
* Copyright (c) 2002 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM - Initial API and implementation
* Jens Lukowski/Innoopract - initial renaming/restructuring
*
*/
package org.eclipse.wst.xml.core.internal.catalog;
import java.io.IOException;
import java.net.MalformedURLException;
import org.eclipse.core.resources.IFile;
import org.eclipse.wst.common.uriresolver.internal.provisional.URIResolverExtension;
import org.eclipse.wst.xml.core.internal.Logger;
import org.eclipse.wst.xml.core.internal.XMLCoreMessages;
import org.eclipse.wst.xml.core.internal.XMLCorePlugin;
import org.eclipse.wst.xml.core.internal.catalog.provisional.ICatalog;
/**
* This class is used to inject the XMLCatalog resolution behaviour into the
* Common Extensible URI Resolver. This class is referenced in the XML Catalog
* plugin's plugin.xml file.
*/
public class XMLCatalogURIResolverExtension implements URIResolverExtension
{
public String resolve(IFile file, String baseLocation, String publicId, String systemId)
{
// if we have catalog in a project we may add it
// to the catalog manager first
ICatalog catalog = XMLCorePlugin.getDefault().getDefaultXMLCatalog();
if (catalog == null)
{
Logger.log(Logger.ERROR_DEBUG, XMLCoreMessages.Catalog_resolution_null_catalog);
return null;
}
String resolved = null;
if (systemId != null)
{
try
{
resolved = catalog.resolveSystem(systemId);
if (resolved == null)
{
resolved = catalog.resolveURI(systemId);
}
}
catch (MalformedURLException me)
{
Logger.log(Logger.ERROR_DEBUG, XMLCoreMessages.Catalog_resolution_malformed_url);
resolved = null;
}
catch (IOException ie)
{
Logger.log(Logger.ERROR_DEBUG, XMLCoreMessages.Catalog_resolution_io_exception);
resolved = null;
}
}
if (resolved == null)
{
if (publicId != null)
{
// CS : this is a temporary workaround for bug 96772
//
// For schemas we always use locations where available and only use
// namespace when no location is specified. For XML entities (such as DOCTYPE)
// default always utilize the public catalog entry.
//
// This lame test below roughly discriminate between schema and XML entities.
// TODO (bug 103243) remove this lame test once we move to the new URIResolver API
// since the new API is explicit about namespace and publicId
//
if (!(systemId != null && systemId.endsWith(".xsd"))) //$NON-NLS-1$
{
try
{
resolved = catalog.resolvePublic(publicId, systemId);
if (resolved == null)
{
resolved = catalog.resolveURI(publicId);
}
}
catch (MalformedURLException me)
{
Logger.log(Logger.ERROR_DEBUG, XMLCoreMessages.Catalog_resolution_malformed_url);
resolved = null;
}
catch (IOException ie)
{
Logger.log(Logger.ERROR_DEBUG, XMLCoreMessages.Catalog_resolution_io_exception);
resolved = null;
}
}
}
}
return resolved;
}
}
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