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1 /* |
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2 * Copyright (c) 1997, 2013, 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; |
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27 |
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28 import java.io.IOException; |
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29 import java.io.StringReader; |
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30 |
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31 import com.sun.codemodel.internal.JCodeModel; |
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32 import com.sun.tools.internal.xjc.model.Model; |
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33 import com.sun.tools.internal.xjc.reader.Const; |
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34 import com.sun.tools.internal.xjc.reader.ExtensionBindingChecker; |
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35 import com.sun.tools.internal.xjc.reader.dtd.TDTDReader; |
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36 import com.sun.tools.internal.xjc.reader.internalizer.DOMForest; |
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37 import com.sun.tools.internal.xjc.reader.internalizer.DOMForestScanner; |
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38 import com.sun.tools.internal.xjc.reader.internalizer.InternalizationLogic; |
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39 import com.sun.tools.internal.xjc.reader.internalizer.SCDBasedBindingSet; |
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40 import com.sun.tools.internal.xjc.reader.internalizer.VersionChecker; |
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41 import com.sun.tools.internal.xjc.reader.relaxng.RELAXNGCompiler; |
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42 import com.sun.tools.internal.xjc.reader.relaxng.RELAXNGInternalizationLogic; |
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43 import com.sun.tools.internal.xjc.reader.xmlschema.BGMBuilder; |
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44 import com.sun.tools.internal.xjc.reader.xmlschema.bindinfo.AnnotationParserFactoryImpl; |
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45 import com.sun.tools.internal.xjc.reader.xmlschema.parser.CustomizationContextChecker; |
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46 import com.sun.tools.internal.xjc.reader.xmlschema.parser.IncorrectNamespaceURIChecker; |
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47 import com.sun.tools.internal.xjc.reader.xmlschema.parser.SchemaConstraintChecker; |
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48 import com.sun.tools.internal.xjc.reader.xmlschema.parser.XMLSchemaInternalizationLogic; |
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49 import com.sun.tools.internal.xjc.util.ErrorReceiverFilter; |
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50 import com.sun.xml.internal.bind.v2.util.XmlFactory; |
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51 import com.sun.xml.internal.xsom.XSSchemaSet; |
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52 import com.sun.xml.internal.xsom.parser.JAXPParser; |
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53 import com.sun.xml.internal.xsom.parser.XMLParser; |
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54 import com.sun.xml.internal.xsom.parser.XSOMParser; |
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55 import javax.xml.XMLConstants; |
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56 |
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57 import com.sun.xml.internal.rngom.ast.builder.SchemaBuilder; |
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58 import com.sun.xml.internal.rngom.ast.util.CheckingSchemaBuilder; |
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59 import com.sun.xml.internal.rngom.digested.DPattern; |
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60 import com.sun.xml.internal.rngom.digested.DSchemaBuilderImpl; |
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61 import com.sun.xml.internal.rngom.parse.IllegalSchemaException; |
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62 import com.sun.xml.internal.rngom.parse.Parseable; |
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63 import com.sun.xml.internal.rngom.parse.compact.CompactParseable; |
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64 import com.sun.xml.internal.rngom.parse.xml.SAXParseable; |
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65 import com.sun.xml.internal.rngom.xml.sax.XMLReaderCreator; |
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66 import org.w3c.dom.Document; |
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67 import org.w3c.dom.Element; |
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68 import org.w3c.dom.NodeList; |
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69 import org.xml.sax.Attributes; |
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70 import org.xml.sax.ContentHandler; |
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71 import org.xml.sax.EntityResolver; |
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72 import org.xml.sax.ErrorHandler; |
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73 import org.xml.sax.InputSource; |
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74 import org.xml.sax.SAXException; |
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75 import org.xml.sax.SAXParseException; |
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76 import org.xml.sax.XMLFilter; |
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77 import org.xml.sax.XMLReader; |
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78 import org.xml.sax.helpers.XMLFilterImpl; |
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79 |
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80 /** |
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81 * Builds a {@link Model} object. |
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82 * |
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83 * This is an utility class that makes it easy to load a grammar object |
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84 * from various sources. |
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85 * |
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86 * @author |
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87 * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com) |
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88 */ |
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89 public final class ModelLoader { |
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90 |
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91 private final Options opt; |
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92 private final ErrorReceiverFilter errorReceiver; |
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93 private final JCodeModel codeModel; |
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94 /** |
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95 * {@link DOMForest#transform(boolean)} creates this on the side. |
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96 */ |
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97 private SCDBasedBindingSet scdBasedBindingSet; |
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98 |
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99 |
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100 /** |
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101 * A convenience method to load schemas into a {@link Model}. |
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102 */ |
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103 public static Model load( Options opt, JCodeModel codeModel, ErrorReceiver er ) { |
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104 return new ModelLoader(opt,codeModel,er).load(); |
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105 } |
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106 |
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107 |
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108 public ModelLoader(Options _opt, JCodeModel _codeModel, ErrorReceiver er) { |
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109 this.opt = _opt; |
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110 this.codeModel = _codeModel; |
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111 this.errorReceiver = new ErrorReceiverFilter(er); |
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112 } |
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113 |
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114 @SuppressWarnings("CallToThreadDumpStack") |
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115 private Model load() { |
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116 Model grammar; |
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117 |
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118 if(!sanityCheck()) |
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119 return null; |
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120 |
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121 |
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122 try { |
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123 switch (opt.getSchemaLanguage()) { |
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124 case DTD : |
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125 // TODO: make sure that bindFiles,size()<=1 |
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126 InputSource bindFile = null; |
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127 if (opt.getBindFiles().length > 0) |
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128 bindFile = opt.getBindFiles()[0]; |
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129 // if there is no binding file, make a dummy one. |
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130 if (bindFile == null) { |
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131 // if no binding information is specified, provide a default |
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132 bindFile = |
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133 new InputSource( |
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134 new StringReader( |
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135 "<?xml version='1.0'?><xml-java-binding-schema><options package='" |
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136 + (opt.defaultPackage==null?"generated":opt.defaultPackage) |
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137 + "'/></xml-java-binding-schema>")); |
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138 } |
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139 |
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140 checkTooManySchemaErrors(); |
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141 grammar = loadDTD(opt.getGrammars()[0], bindFile ); |
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142 break; |
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143 |
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144 case RELAXNG : |
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145 checkTooManySchemaErrors(); |
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146 grammar = loadRELAXNG(); |
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147 break; |
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148 |
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149 case RELAXNG_COMPACT : |
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150 checkTooManySchemaErrors(); |
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151 grammar = loadRELAXNGCompact(); |
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152 break; |
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153 |
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154 case WSDL: |
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155 grammar = annotateXMLSchema( loadWSDL() ); |
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156 break; |
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157 |
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158 case XMLSCHEMA: |
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159 grammar = annotateXMLSchema( loadXMLSchema() ); |
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160 break; |
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161 |
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162 default : |
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163 throw new AssertionError(); // assertion failed |
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164 } |
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165 |
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166 if (errorReceiver.hadError()) { |
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167 grammar = null; |
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168 } else { |
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169 grammar.setPackageLevelAnnotations(opt.packageLevelAnnotations); |
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170 } |
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171 |
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172 return grammar; |
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173 |
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174 } catch (SAXException e) { |
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175 // parsing error in the input document. |
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176 // this error must have been reported to the user vis error handler |
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177 // so don't print it again. |
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178 if (opt.verbose) { |
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179 // however, a bug in XJC might throw unexpected SAXException. |
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180 // thus when one is debugging, it is useful to print what went |
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181 // wrong. |
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182 if (e.getException() != null) |
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183 e.getException().printStackTrace(); |
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184 else |
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185 e.printStackTrace(); |
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186 } |
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187 return null; |
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188 } catch (AbortException e) { |
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189 // error should have been reported already, since this is requested by the error receiver |
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190 return null; |
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191 } |
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192 } |
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193 |
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194 |
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195 |
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196 /** |
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197 * Do some extra checking and return false if the compilation |
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198 * should abort. |
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199 */ |
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200 private boolean sanityCheck() { |
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201 if( opt.getSchemaLanguage()==Language.XMLSCHEMA ) { |
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202 Language guess = opt.guessSchemaLanguage(); |
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203 |
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204 String[] msg = null; |
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205 switch(guess) { |
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206 case DTD: |
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207 msg = new String[]{"DTD","-dtd"}; |
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208 break; |
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209 case RELAXNG: |
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210 msg = new String[]{"RELAX NG","-relaxng"}; |
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211 break; |
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212 case RELAXNG_COMPACT: |
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213 msg = new String[]{"RELAX NG compact syntax","-relaxng-compact"}; |
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214 break; |
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215 case WSDL: |
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216 msg = new String[]{"WSDL","-wsdl"}; |
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217 break; |
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218 } |
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219 if( msg!=null ) |
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220 errorReceiver.warning( null, |
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221 Messages.format( |
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222 Messages.EXPERIMENTAL_LANGUAGE_WARNING, |
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223 msg[0], msg[1] )); |
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224 } |
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225 return true; |
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226 } |
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227 |
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228 |
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229 /** |
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230 * {@link XMLParser} implementation that adds additional processors into the chain. |
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231 * |
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232 * <p> |
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233 * This parser will parse a DOM forest as: |
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234 * DOMForestParser --> |
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235 * ExtensionBindingChecker --> |
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236 * ProhibitedFeatureFilter --> |
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237 * XSOMParser |
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238 */ |
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239 private class XMLSchemaParser implements XMLParser { |
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240 private final XMLParser baseParser; |
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241 |
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242 private XMLSchemaParser(XMLParser baseParser) { |
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243 this.baseParser = baseParser; |
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244 } |
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245 |
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246 public void parse(InputSource source, ContentHandler handler, |
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247 ErrorHandler errorHandler, EntityResolver entityResolver ) throws SAXException, IOException { |
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248 // set up the chain of handlers. |
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249 handler = wrapBy( new ExtensionBindingChecker(XMLConstants.W3C_XML_SCHEMA_NS_URI,opt,errorReceiver), handler ); |
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250 handler = wrapBy( new IncorrectNamespaceURIChecker(errorReceiver), handler ); |
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251 handler = wrapBy( new CustomizationContextChecker(errorReceiver), handler ); |
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252 // handler = wrapBy( new VersionChecker(controller), handler ); |
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253 |
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254 baseParser.parse( source, handler, errorHandler, entityResolver ); |
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255 } |
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256 /** |
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257 * Wraps the specified content handler by a filter. |
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258 * It is little awkward to use a helper implementation class like XMLFilterImpl |
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259 * as the method parameter, but this simplifies the code. |
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260 */ |
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261 private ContentHandler wrapBy( XMLFilterImpl filter, ContentHandler handler ) { |
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262 filter.setContentHandler(handler); |
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263 return filter; |
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264 } |
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265 } |
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266 |
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267 private void checkTooManySchemaErrors() { |
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268 if( opt.getGrammars().length!=1 ) |
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269 errorReceiver.error(null,Messages.format(Messages.ERR_TOO_MANY_SCHEMA)); |
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270 } |
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271 |
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272 /** |
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273 * Parses a DTD file into an annotated grammar. |
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274 * |
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275 * @param source |
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276 * DTD file |
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277 * @param bindFile |
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278 * External binding file. |
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279 */ |
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280 private Model loadDTD( InputSource source, InputSource bindFile) { |
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281 |
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282 // parse the schema as a DTD. |
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283 return TDTDReader.parse( |
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284 source, |
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285 bindFile, |
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286 errorReceiver, |
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287 opt); |
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288 } |
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289 |
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290 /** |
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291 * Builds DOMForest and performs the internalization. |
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292 * |
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293 * @throws SAXException |
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294 * when a fatal error happens |
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295 */ |
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296 public DOMForest buildDOMForest( InternalizationLogic logic ) |
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297 throws SAXException { |
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298 |
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299 // parse into DOM forest |
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300 DOMForest forest = new DOMForest(logic, opt); |
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301 |
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302 forest.setErrorHandler(errorReceiver); |
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303 if(opt.entityResolver!=null) |
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304 forest.setEntityResolver(opt.entityResolver); |
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305 |
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306 // parse source grammars |
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307 for (InputSource value : opt.getGrammars()) { |
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308 errorReceiver.pollAbort(); |
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309 forest.parse(value, true); |
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310 } |
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311 |
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312 // parse external binding files |
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313 for (InputSource value : opt.getBindFiles()) { |
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314 errorReceiver.pollAbort(); |
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315 Document dom = forest.parse(value, true); |
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316 if(dom==null) continue; // error must have been reported |
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317 Element root = dom.getDocumentElement(); |
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318 // TODO: it somehow doesn't feel right to do a validation in the Driver class. |
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319 // think about moving it to somewhere else. |
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320 if (!fixNull(root.getNamespaceURI()).equals(Const.JAXB_NSURI) |
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321 || !root.getLocalName().equals("bindings")) |
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322 errorReceiver.error(new SAXParseException(Messages.format(Messages.ERR_NOT_A_BINDING_FILE, |
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323 root.getNamespaceURI(), |
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324 root.getLocalName()), |
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325 null, |
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326 value.getSystemId(), |
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327 -1, -1)); |
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328 } |
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329 |
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330 scdBasedBindingSet = forest.transform(opt.isExtensionMode()); |
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331 |
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332 return forest; |
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333 } |
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334 |
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335 private String fixNull(String s) { |
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336 if(s==null) return ""; |
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337 else return s; |
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338 } |
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339 |
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340 /** |
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341 * Parses a set of XML Schema files into an annotated grammar. |
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342 */ |
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343 public XSSchemaSet loadXMLSchema() throws SAXException { |
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344 |
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345 if( opt.strictCheck && !SchemaConstraintChecker.check(opt.getGrammars(),errorReceiver,opt.entityResolver, opt.disableXmlSecurity)) { |
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346 // schema error. error should have been reported |
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347 return null; |
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348 } |
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349 |
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350 if(opt.getBindFiles().length==0) { |
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351 // no external binding. try the speculative no DOMForest execution, |
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352 // which is faster if the speculation succeeds. |
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353 try { |
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354 return createXSOMSpeculative(); |
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355 } catch( SpeculationFailure e) { |
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356 // failed. go the slow way |
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357 } |
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358 } |
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359 |
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360 // the default slower way is to parse everything into DOM first. |
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361 // so that we can take external annotations into account. |
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362 DOMForest forest = buildDOMForest( new XMLSchemaInternalizationLogic() ); |
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363 return createXSOM(forest, scdBasedBindingSet); |
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364 } |
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365 |
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366 /** |
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367 * Parses a set of schemas inside a WSDL file. |
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368 * |
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369 * A WSDL file may contain multiple <xsd:schema> elements. |
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370 */ |
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371 private XSSchemaSet loadWSDL() |
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372 throws SAXException { |
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373 |
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374 |
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375 // build DOMForest just like we handle XML Schema |
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376 DOMForest forest = buildDOMForest( new XMLSchemaInternalizationLogic() ); |
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377 |
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378 DOMForestScanner scanner = new DOMForestScanner(forest); |
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379 |
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380 XSOMParser xsomParser = createXSOMParser( forest ); |
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381 |
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382 // find <xsd:schema>s and parse them individually |
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383 for( InputSource grammar : opt.getGrammars() ) { |
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384 Document wsdlDom = forest.get( grammar.getSystemId() ); |
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385 if (wsdlDom == null) { |
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386 String systemId = Options.normalizeSystemId(grammar.getSystemId()); |
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387 if (forest.get(systemId) != null) { |
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388 grammar.setSystemId(systemId); |
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389 wsdlDom = forest.get( grammar.getSystemId() ); |
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390 } |
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391 } |
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392 |
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393 NodeList schemas = wsdlDom.getElementsByTagNameNS(XMLConstants.W3C_XML_SCHEMA_NS_URI,"schema"); |
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394 for( int i=0; i<schemas.getLength(); i++ ) |
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395 scanner.scan( (Element)schemas.item(i), xsomParser.getParserHandler() ); |
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396 } |
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397 return xsomParser.getResult(); |
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398 } |
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399 |
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400 /** |
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401 * Annotates the obtained schema set. |
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402 * |
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403 * @return |
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404 * null if an error happens. In that case, the error messages |
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405 * will be properly reported to the controller by this method. |
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406 */ |
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407 public Model annotateXMLSchema(XSSchemaSet xs) { |
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408 if (xs == null) |
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409 return null; |
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410 return BGMBuilder.build(xs, codeModel, errorReceiver, opt); |
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411 } |
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412 |
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413 /** |
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414 * Potentially problematic - make sure the parser instance passed is initialized |
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415 * with proper security feature. |
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416 * |
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417 * @param parser |
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418 * @return |
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419 */ |
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420 public XSOMParser createXSOMParser(XMLParser parser) { |
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421 // set up other parameters to XSOMParser |
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422 XSOMParser reader = new XSOMParser(new XMLSchemaParser(parser)); |
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423 reader.setAnnotationParser(new AnnotationParserFactoryImpl(opt)); |
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424 reader.setErrorHandler(errorReceiver); |
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425 reader.setEntityResolver(opt.entityResolver); |
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426 return reader; |
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427 } |
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428 |
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429 public XSOMParser createXSOMParser(final DOMForest forest) { |
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430 XSOMParser p = createXSOMParser(forest.createParser()); |
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431 p.setEntityResolver(new EntityResolver() { |
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432 public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException { |
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433 // DOMForest only parses documents that are reachable through systemIds, |
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434 // and it won't pick up references like <xs:import namespace="..." /> without |
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435 // @schemaLocation. So we still need to use an entity resolver here to resolve |
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436 // these references, yet we don't want to just run them blindly, since if we do that |
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437 // DOMForestParser always get the translated system ID when catalog is used |
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438 // (where DOMForest records trees with their original system IDs.) |
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439 if(systemId!=null && forest.get(systemId)!=null) |
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440 return new InputSource(systemId); |
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441 if(opt.entityResolver!=null) |
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442 return opt.entityResolver.resolveEntity(publicId,systemId); |
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443 |
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444 return null; |
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445 } |
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446 }); |
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447 return p; |
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448 } |
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449 |
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450 |
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451 private static final class SpeculationFailure extends Error {} |
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452 |
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453 private static final class SpeculationChecker extends XMLFilterImpl { |
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454 @Override |
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455 public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { |
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456 if(localName.equals("bindings") && uri.equals(Const.JAXB_NSURI)) |
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457 throw new SpeculationFailure(); |
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458 super.startElement(uri,localName,qName,attributes); |
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459 } |
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460 } |
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461 |
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462 /** |
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463 * Parses schemas directly into XSOM by assuming that there's |
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464 * no external annotations. |
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465 * <p> |
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466 * When an external annotation is found, a {@link SpeculationFailure} is thrown, |
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467 * and we will do it all over again by using the slow way. |
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468 */ |
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469 private XSSchemaSet createXSOMSpeculative() throws SAXException, SpeculationFailure { |
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470 |
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471 // check if the schema contains external binding files. If so, speculation is a failure. |
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472 |
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473 XMLParser parser = new XMLParser() { |
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474 private final JAXPParser base = new JAXPParser(XmlFactory.createParserFactory(opt.disableXmlSecurity)); |
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475 |
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476 public void parse(InputSource source, ContentHandler handler, |
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477 ErrorHandler errorHandler, EntityResolver entityResolver ) throws SAXException, IOException { |
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478 // set up the chain of handlers. |
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479 handler = wrapBy( new SpeculationChecker(), handler ); |
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480 handler = wrapBy( new VersionChecker(null,errorReceiver,entityResolver), handler ); |
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481 |
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482 base.parse( source, handler, errorHandler, entityResolver ); |
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483 } |
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484 /** |
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485 * Wraps the specified content handler by a filter. |
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486 * It is little awkward to use a helper implementation class like XMLFilterImpl |
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487 * as the method parameter, but this simplifies the code. |
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488 */ |
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489 private ContentHandler wrapBy( XMLFilterImpl filter, ContentHandler handler ) { |
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490 filter.setContentHandler(handler); |
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491 return filter; |
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492 } |
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493 }; |
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494 |
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495 XSOMParser reader = createXSOMParser(parser); |
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496 |
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497 // parse source grammars |
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498 for (InputSource value : opt.getGrammars()) |
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499 reader.parse(value); |
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500 |
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501 return reader.getResult(); |
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502 } |
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503 |
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504 /** |
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505 * Parses a {@link DOMForest} into a {@link XSSchemaSet}. |
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506 * |
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507 * @return |
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508 * null if the parsing failed. |
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509 */ |
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510 public XSSchemaSet createXSOM(DOMForest forest, SCDBasedBindingSet scdBasedBindingSet) throws SAXException { |
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511 // set up other parameters to XSOMParser |
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512 XSOMParser reader = createXSOMParser(forest); |
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513 |
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514 // re-parse the transformed schemas |
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515 for (String systemId : forest.getRootDocuments()) { |
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516 errorReceiver.pollAbort(); |
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517 Document dom = forest.get(systemId); |
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518 if (!dom.getDocumentElement().getNamespaceURI().equals(Const.JAXB_NSURI)) { |
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519 reader.parse(systemId); |
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520 } |
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521 } |
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522 |
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523 XSSchemaSet result = reader.getResult(); |
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524 |
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525 if(result!=null) |
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526 scdBasedBindingSet.apply(result,errorReceiver); |
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527 |
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528 return result; |
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529 } |
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530 |
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531 /** |
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532 * Parses a RELAX NG grammar into an annotated grammar. |
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533 */ |
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534 private Model loadRELAXNG() throws SAXException { |
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535 |
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536 // build DOM forest |
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537 final DOMForest forest = buildDOMForest( new RELAXNGInternalizationLogic() ); |
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538 |
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539 // use JAXP masquerading to validate the input document. |
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540 // DOMForest -> ExtensionBindingChecker -> RNGOM |
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541 |
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542 XMLReaderCreator xrc = new XMLReaderCreator() { |
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543 public XMLReader createXMLReader() { |
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544 |
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545 // foreset parser cannot change the receivers while it's working, |
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546 // so we need to have one XMLFilter that works as a buffer |
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547 XMLFilter buffer = new XMLFilterImpl() { |
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548 @Override |
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549 public void parse(InputSource source) throws IOException, SAXException { |
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550 forest.createParser().parse( source, this, this, this ); |
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551 } |
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552 }; |
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553 |
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554 XMLFilter f = new ExtensionBindingChecker(Const.RELAXNG_URI,opt,errorReceiver); |
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555 f.setParent(buffer); |
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556 |
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557 f.setEntityResolver(opt.entityResolver); |
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558 |
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559 return f; |
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560 } |
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561 }; |
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562 |
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563 Parseable p = new SAXParseable( opt.getGrammars()[0], errorReceiver, xrc ); |
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564 |
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565 return loadRELAXNG(p); |
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566 |
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567 } |
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568 |
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569 /** |
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570 * Loads RELAX NG compact syntax |
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571 */ |
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572 private Model loadRELAXNGCompact() { |
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573 if(opt.getBindFiles().length>0) |
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574 errorReceiver.error(new SAXParseException( |
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575 Messages.format(Messages.ERR_BINDING_FILE_NOT_SUPPORTED_FOR_RNC),null)); |
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576 |
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577 // TODO: entity resolver? |
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578 Parseable p = new CompactParseable( opt.getGrammars()[0], errorReceiver ); |
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579 |
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580 return loadRELAXNG(p); |
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581 |
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582 } |
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583 |
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584 /** |
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585 * Common part between the XML syntax and the compact syntax. |
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586 */ |
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587 private Model loadRELAXNG(Parseable p) { |
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588 SchemaBuilder sb = new CheckingSchemaBuilder(new DSchemaBuilderImpl(),errorReceiver); |
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589 |
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590 try { |
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591 DPattern out = (DPattern)p.parse(sb); |
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592 return RELAXNGCompiler.build(out,codeModel,opt); |
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593 } catch (IllegalSchemaException e) { |
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594 errorReceiver.error(e.getMessage(),e); |
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595 return null; |
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596 } |
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597 } |
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598 } |