nz.net.ultraq.jaxb.XMLCDataEscapeHandler.groovy Maven / Gradle / Ivy

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/*
 * Copyright 2012, Emanuel Rabina (http://www.ultraq.net.nz/)
 * 
 * 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 nz.net.ultraq.jaxb

import com.sun.xml.bind.marshaller.CharacterEscapeHandler
import com.sun.xml.bind.marshaller.MinimumEscapeHandler

/**
 * Escape handler to avoid escaping CDATA sections.
 * 
 * @author Emanuel Rabina
 */
class XMLCDataEscapeHandler implements CharacterEscapeHandler {

	private static final CharacterEscapeHandler defaultHandler = MinimumEscapeHandler.theInstance

	/**
	 * Perform escaping as normal except on CDATA blocks.
	 * 
	 * @param ch
	 * @param start
	 * @param length
	 * @param isAttVal
	 * @param out
	 */
	@Override
	void escape(char[] ch, int start, int length, boolean isAttVal, Writer out) {

		// If this is a CDATA block, do no escaping
		if (length - start >= 9) {
			def cdataCheck = new String(ch, start, 9)
			if (cdataCheck == '