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/*******************************************************************************
* Copyright (c) 2008 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.help.internal.entityresolver;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.net.URL;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Path;
import org.eclipse.help.internal.HelpPlugin;
import org.osgi.framework.Bundle;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
public class LocalEntityResolver implements EntityResolver {
@Override
public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException {
int index = systemId.lastIndexOf("/"); //$NON-NLS-1$
if (index >= 0) {
Bundle helpBundle = HelpPlugin.getDefault().getBundle();
String dtdPath = "dtds/internal" + systemId.substring(index); //$NON-NLS-1$
URL dtdURL = FileLocator.find(helpBundle, new Path(dtdPath), null);
if (dtdURL != null) {
InputStream stream = dtdURL.openStream();
if (stream != null) {
InputSource is = new InputSource(stream);
is.setSystemId(systemId);
is.setPublicId(publicId);
return is;
}
}
}
return new InputSource(new StringReader("")); //$NON-NLS-1$
}
}
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