HardeningTransformer.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.commons.xml;

import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;

/**
 * {@link Transformer} wrapper that rewrites the Source on every {@link Transformer#transform(Source, Result)} call through
 * {@link XmlFactories#harden(Source)} before delegating.
 */
final class HardeningTransformer extends DelegatingTransformer {

    HardeningTransformer(final Transformer delegate) {
        super(delegate);
    }

    @Override
    public void transform(final Source xmlSource, final Result outputTarget) throws TransformerException {
        try {
            super.transform(XmlFactories.harden(xmlSource), outputTarget);
        } catch (final TransformerConfigurationException e) {
            throw new TransformerException(e);
        }
    }
}