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1 /* |
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2 * Copyright (c) 1997, 2011, 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.tools.internal.xjc.reader.xmlschema.bindinfo; |
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27 |
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28 import javax.xml.bind.JAXBException; |
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29 import javax.xml.bind.Unmarshaller; |
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30 import javax.xml.bind.UnmarshallerHandler; |
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31 import javax.xml.bind.helpers.DefaultValidationEventHandler; |
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32 import javax.xml.validation.ValidatorHandler; |
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33 |
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34 import com.sun.tools.internal.xjc.Options; |
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35 import com.sun.tools.internal.xjc.reader.Const; |
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36 import com.sun.xml.internal.xsom.parser.AnnotationContext; |
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37 import com.sun.xml.internal.xsom.parser.AnnotationParser; |
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38 import com.sun.xml.internal.xsom.parser.AnnotationParserFactory; |
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39 import com.sun.xml.internal.bind.v2.WellKnownNamespace; |
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40 |
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41 import org.xml.sax.Attributes; |
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42 import org.xml.sax.ContentHandler; |
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43 import org.xml.sax.EntityResolver; |
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44 import org.xml.sax.ErrorHandler; |
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45 import org.xml.sax.SAXException; |
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46 import org.xml.sax.SAXParseException; |
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47 import org.xml.sax.helpers.XMLFilterImpl; |
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48 |
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49 /** |
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50 * Implementation of XSOM {@link AnnotationParserFactory} that |
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51 * parses JAXB customization declarations. |
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52 * |
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53 * @author |
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54 * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com) |
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55 */ |
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56 public class AnnotationParserFactoryImpl implements AnnotationParserFactory { |
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57 public AnnotationParserFactoryImpl(Options opts) { |
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58 this.options=opts; |
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59 } |
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60 |
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61 private final Options options; |
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62 /** |
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63 * Lazily created validator, so that the schema for binding won't be |
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64 * prepared unless absolutely necessary. |
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65 */ |
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66 private ValidatorHandler validator; |
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67 |
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68 public AnnotationParser create() { |
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69 return new AnnotationParser() { |
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70 private Unmarshaller u = BindInfo.getCustomizationUnmarshaller(); |
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71 |
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72 private UnmarshallerHandler handler; |
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73 |
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74 public ContentHandler getContentHandler( |
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75 AnnotationContext context, String parentElementName, |
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76 final ErrorHandler errorHandler, EntityResolver entityResolver ) { |
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77 |
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78 // return a ContentHandler that validates the customization and also |
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79 // parses them into the internal structure. |
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80 if(handler!=null) |
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81 // interface contract violation. |
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82 // this method will be called only once. |
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83 throw new AssertionError(); |
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84 |
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85 if(options.debugMode) |
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86 try { |
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87 u.setEventHandler(new DefaultValidationEventHandler()); |
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88 } catch (JAXBException e) { |
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89 throw new AssertionError(e); // ridiculous! |
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90 } |
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91 |
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92 handler = u.getUnmarshallerHandler(); |
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93 |
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94 // configure so that the validator will receive events for JAXB islands |
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95 return new ForkingFilter(handler) { |
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96 @Override |
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97 public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException { |
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98 super.startElement(uri, localName, qName, atts); |
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99 if((uri.equals(Const.JAXB_NSURI) || uri.equals(Const.XJC_EXTENSION_URI)) |
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100 && getSideHandler()==null) { |
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101 // set up validator |
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102 if(validator==null) |
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103 validator = BindInfo.bindingFileSchema.newValidator(); |
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104 validator.setErrorHandler(errorHandler); |
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105 startForking(uri,localName,qName,atts,new ValidatorProtecter(validator)); |
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106 } |
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107 |
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108 // check for xmime:expectedContentTypes attributes in annotations and report them |
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109 for( int i=atts.getLength()-1; i>=0; i-- ) { |
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110 if(atts.getURI(i).equals(WellKnownNamespace.XML_MIME_URI) |
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111 && atts.getLocalName(i).equals(Const.EXPECTED_CONTENT_TYPES)) |
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112 errorHandler.warning(new SAXParseException( |
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113 com.sun.tools.internal.xjc.reader.xmlschema.Messages.format( |
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114 com.sun.tools.internal.xjc.reader.xmlschema.Messages.WARN_UNUSED_EXPECTED_CONTENT_TYPES), |
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115 getDocumentLocator() |
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116 )); |
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117 } |
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118 } |
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119 }; |
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120 } |
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121 |
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122 public BindInfo getResult( Object existing ) { |
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123 if(handler==null) |
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124 // interface contract violation. |
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125 // the getContentHandler method must have been called. |
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126 throw new AssertionError(); |
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127 |
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128 try { |
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129 BindInfo result = (BindInfo)handler.getResult(); |
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130 |
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131 if(existing!=null) { |
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132 BindInfo bie = (BindInfo)existing; |
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133 bie.absorb(result); |
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134 return bie; |
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135 } else { |
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136 if(!result.isPointless()) |
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137 return result; // just annotation. no meaningful customization |
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138 else |
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139 return null; |
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140 } |
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141 } catch (JAXBException e) { |
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142 throw new AssertionError(e); |
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143 } |
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144 } |
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145 }; |
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146 } |
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147 |
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148 private static final class ValidatorProtecter extends XMLFilterImpl { |
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149 public ValidatorProtecter(ContentHandler h) { |
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150 setContentHandler(h); |
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151 } |
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152 |
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153 @Override |
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154 public void startPrefixMapping(String prefix, String uri) throws SAXException { |
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155 // work around a bug in the validator implementation in Tiger |
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156 super.startPrefixMapping(prefix.intern(),uri); |
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157 } |
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158 } |
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159 } |