001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common Development
008: * and Distribution License("CDDL") (collectively, the "License"). You
009: * may not use this file except in compliance with the License. You can obtain
010: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
011: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
012: * language governing permissions and limitations under the License.
013: *
014: * When distributing the software, include this License Header Notice in each
015: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
016: * Sun designates this particular file as subject to the "Classpath" exception
017: * as provided by Sun in the GPL Version 2 section of the License file that
018: * accompanied this code. If applicable, add the following below the License
019: * Header, with the fields enclosed by brackets [] replaced by your own
020: * identifying information: "Portions Copyrighted [year]
021: * [name of copyright owner]"
022: *
023: * Contributor(s):
024: *
025: * If you wish your version of this file to be governed by only the CDDL or
026: * only the GPL Version 2, indicate your decision by adding "[Contributor]
027: * elects to include this software in this distribution under the [CDDL or GPL
028: * Version 2] license." If you don't indicate a single choice of license, a
029: * recipient has the option to distribute your version of this file under
030: * either the CDDL, the GPL Version 2 or to extend the choice of license to
031: * its licensees as provided above. However, if you add GPL Version 2 code
032: * and therefore, elected the GPL Version 2 license, then the option applies
033: * only if the new code is made subject to such option by the copyright
034: * holder.
035: */
036: package com.sun.xml.bind.marshaller;
037:
038: import java.io.IOException;
039: import java.io.Writer;
040: import java.nio.charset.Charset;
041: import java.nio.charset.CharsetEncoder;
042:
043: /**
044: * Uses JDK1.4 NIO functionality to escape characters smartly.
045: *
046: * @since 1.0.1
047: * @author
048: * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
049: */
050: public class NioEscapeHandler implements CharacterEscapeHandler {
051:
052: private final CharsetEncoder encoder;
053:
054: // exposing those variations upset javac 1.3.1, since it needs to
055: // know about those classes to determine which overloaded version
056: // of the method it wants to use. So comment it out for the compatibility.
057:
058: // public NioEscapeHandler(CharsetEncoder _encoder) {
059: // this.encoder = _encoder;
060: // if(encoder==null)
061: // throw new NullPointerException();
062: // }
063: //
064: // public NioEscapeHandler(Charset charset) {
065: // this(charset.newEncoder());
066: // }
067:
068: public NioEscapeHandler(String charsetName) {
069: // this(Charset.forName(charsetName));
070: this .encoder = Charset.forName(charsetName).newEncoder();
071: }
072:
073: public void escape(char[] ch, int start, int length,
074: boolean isAttVal, Writer out) throws IOException {
075: int limit = start + length;
076: for (int i = start; i < limit; i++) {
077: switch (ch[i]) {
078: case '&':
079: out.write("&");
080: break;
081: case '<':
082: out.write("<");
083: break;
084: case '>':
085: out.write(">");
086: break;
087: case '\"':
088: if (isAttVal) {
089: out.write(""");
090: } else {
091: out.write('\"');
092: }
093: break;
094: default:
095: if (encoder.canEncode(ch[i])) {
096: out.write(ch[i]);
097: } else {
098: out.write("&#");
099: out.write(Integer.toString(ch[i]));
100: out.write(';');
101: }
102: }
103: }
104: }
105:
106: }
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