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/*
 * 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
 *
 * http://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.axiom.om.impl.stream;

import org.apache.axiom.core.stream.StreamException;
import org.apache.axiom.core.stream.XmlHandler;
import org.apache.axiom.core.stream.XmlHandlerWrapper;
import org.apache.axiom.om.OMOutputFormat;

public final class XmlDeclarationRewriterHandler extends XmlHandlerWrapper {
    private final OMOutputFormat format;
    
    public XmlDeclarationRewriterHandler(XmlHandler parent, OMOutputFormat format) {
        super(parent);
        this.format = format;
    }

    public OMOutputFormat getFormat() {
        return format;
    }

    @Override
    public void startDocument(String inputEncoding, String xmlVersion, String xmlEncoding,
            Boolean standalone) throws StreamException {
        if (format.isIgnoreXMLDeclaration()) {
            super.startFragment();
        } else {
            if (format.getCharSetEncoding() != null) {
                xmlEncoding = format.getCharSetEncoding();
            }
            super.startDocument(inputEncoding, xmlVersion, xmlEncoding, standalone);
        }
    }
}