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eXist-db NoSQL Database Core

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/*
 * eXist-db Open Source Native XML Database
 * Copyright (C) 2001 The eXist-db Authors
 *
 * [email protected]
 * http://www.exist-db.org
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
package org.exist.repo;

import org.expath.pkg.repo.PackageException;

import javax.xml.transform.Source;
import javax.xml.transform.TransformerException;
import javax.xml.transform.URIResolver;

/**
 * URI Resolver which attempts to resolve XSLT Modules
 * from EXPath Packages.
 *
 * @author Adam Retter
 */
public class PkgXsltModuleURIResolver implements URIResolver {
    private final ExistRepository existRepository;

    public PkgXsltModuleURIResolver(final ExistRepository existRepository) {
        this.existRepository = existRepository;
    }

    @Override
    public Source resolve(final String href, final String base) throws TransformerException {
        try {
            return existRepository.resolveXSLTModule(href);
        } catch (final PackageException e) {
            throw new TransformerException(e.getMessage(), e);
        }
    }
}