org.apache.ws.commons.serialize.CharSetXMLWriter Maven / Gradle / Ivy

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This is a small collection of utility classes, that allow high performance XML processing based on SAX. Basically, it is assumed, that you are using an JAXP 1.1 compliant XML parser and nothing else. In particular, no dependency on the javax.xml.transform package is introduced.

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/*
 * Copyright 2003, 2004  The Apache Software Foundation
 * 
 * Licensed 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.ws.commons.serialize;

import java.nio.charset.Charset;
import java.nio.charset.CharsetEncoder;

import org.xml.sax.SAXException;


/** An improved version of {@link org.apache.ws.commons.serialize.XMLWriterImpl},
 * using the{@link java.nio.charset.Charset} from Java 1.4.
 */
public class CharSetXMLWriter extends XMLWriterImpl {
	private CharsetEncoder charsetEncoder;
	
	public void startDocument() throws SAXException {
	    String enc = getEncoding();
        if (enc == null) {
            enc = "UTF-8";
        }
		Charset charSet = Charset.forName(enc);
		if (charSet.canEncode()) {
			charsetEncoder = charSet.newEncoder();
		}
        super.startDocument();
	}
	
	public boolean canEncode(char c) {
		return (charsetEncoder == null) ? super.canEncode(c) : charsetEncoder.canEncode(c);
	}
}