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1 /* |
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2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package com.sun.xml.internal.xsom; |
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27 |
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28 import org.relaxng.datatype.ValidationContext; |
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29 |
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30 /** |
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31 * String with in-scope namespace binding information. |
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32 * |
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33 * <p> |
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34 * In a general case, text (PCDATA/attributes) that appear in XML schema |
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35 * cannot be correctly interpreted unless you also have in-scope namespace |
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36 * binding (a case in point is QName.) Therefore, it's convenient to |
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37 * handle the lexical representation and the in-scope namespace binding |
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38 * in a pair. |
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39 * |
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40 * @author Kohsuke Kawaguchi |
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41 */ |
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42 public final class XmlString { |
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43 /** |
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44 * Textual value. AKA lexical representation. |
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45 */ |
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46 public final String value; |
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47 |
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48 /** |
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49 * Used to resole in-scope namespace bindings. |
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50 */ |
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51 public final ValidationContext context; |
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52 |
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53 /** |
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54 * Creates a new {@link XmlString} from a lexical representation and in-scope namespaces. |
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55 */ |
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56 public XmlString(String value, ValidationContext context) { |
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57 this.value = value; |
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58 this.context = context; |
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59 if(context==null) |
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60 throw new IllegalArgumentException(); |
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61 } |
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62 |
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63 /** |
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64 * Creates a new {@link XmlString} with empty in-scope namespace bindings. |
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65 */ |
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66 public XmlString(String value) { |
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67 this(value,NULL_CONTEXT); |
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68 } |
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69 |
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70 /** |
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71 * Resolves a namespace prefix to the corresponding namespace URI. |
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72 * |
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73 * This method is used for resolving prefixes in the {@link #value} |
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74 * (such as when {@link #value} represents a QName type.) |
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75 * |
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76 * <p> |
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77 * If the prefix is "" (empty string), the method |
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78 * returns the default namespace URI. |
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79 * |
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80 * <p> |
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81 * If the prefix is "xml", then the method returns |
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82 * "http://www.w3.org/XML/1998/namespace", |
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83 * as defined in the XML Namespaces Recommendation. |
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84 * |
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85 * @return |
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86 * namespace URI of this prefix. |
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87 * If the specified prefix is not declared, |
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88 * the implementation returns null. |
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89 */ |
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90 public final String resolvePrefix(String prefix) { |
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91 return context.resolveNamespacePrefix(prefix); |
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92 } |
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93 |
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94 public String toString() { |
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95 return value; |
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96 } |
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97 |
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98 private static final ValidationContext NULL_CONTEXT = new ValidationContext() { |
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99 public String resolveNamespacePrefix(String s) { |
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100 if(s.length()==0) return ""; |
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101 if(s.equals("xml")) return "http://www.w3.org/XML/1998/namespace"; |
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102 return null; |
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103 } |
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104 |
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105 public String getBaseUri() { |
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106 return null; |
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107 } |
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108 |
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109 public boolean isUnparsedEntity(String s) { |
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110 return false; |
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111 } |
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112 |
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113 public boolean isNotation(String s) { |
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114 return false; |
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115 } |
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116 }; |
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117 } |