01: /*
02: * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun in the LICENSE file that accompanied this code.
10: *
11: * This code is distributed in the hope that it will be useful, but WITHOUT
12: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14: * version 2 for more details (a copy is included in the LICENSE file that
15: * accompanied this code).
16: *
17: * You should have received a copy of the GNU General Public License version
18: * 2 along with this work; if not, write to the Free Software Foundation,
19: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20: *
21: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25:
26: package com.sun.xml.internal.bind.marshaller;
27:
28: import java.io.IOException;
29: import java.io.Writer;
30: import java.nio.charset.Charset;
31: import java.nio.charset.CharsetEncoder;
32:
33: /**
34: * Uses JDK1.4 NIO functionality to escape characters smartly.
35: *
36: * @since 1.0.1
37: * @author
38: * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
39: */
40: public class NioEscapeHandler implements CharacterEscapeHandler {
41:
42: private final CharsetEncoder encoder;
43:
44: // exposing those variations upset javac 1.3.1, since it needs to
45: // know about those classes to determine which overloaded version
46: // of the method it wants to use. So comment it out for the compatibility.
47:
48: // public NioEscapeHandler(CharsetEncoder _encoder) {
49: // this.encoder = _encoder;
50: // if(encoder==null)
51: // throw new NullPointerException();
52: // }
53: //
54: // public NioEscapeHandler(Charset charset) {
55: // this(charset.newEncoder());
56: // }
57:
58: public NioEscapeHandler(String charsetName) {
59: // this(Charset.forName(charsetName));
60: this .encoder = Charset.forName(charsetName).newEncoder();
61: }
62:
63: public void escape(char[] ch, int start, int length,
64: boolean isAttVal, Writer out) throws IOException {
65: int limit = start + length;
66: for (int i = start; i < limit; i++) {
67: switch (ch[i]) {
68: case '&':
69: out.write("&");
70: break;
71: case '<':
72: out.write("<");
73: break;
74: case '>':
75: out.write(">");
76: break;
77: case '\"':
78: if (isAttVal) {
79: out.write(""");
80: } else {
81: out.write('\"');
82: }
83: break;
84: default:
85: if (encoder.canEncode(ch[i])) {
86: out.write(ch[i]);
87: } else {
88: out.write("&#");
89: out.write(Integer.toString(ch[i]));
90: out.write(';');
91: }
92: }
93: }
94: }
95:
96: }
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