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1 /* |
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2 * Copyright (c) 2004, 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 * THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC. |
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26 */ |
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27 |
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28 package com.sun.xml.internal.fastinfoset.tools; |
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29 |
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30 import java.io.IOException; |
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31 import java.io.OutputStream; |
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32 import java.io.OutputStreamWriter; |
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33 import java.io.Writer; |
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34 import java.util.ArrayList; |
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35 import java.util.List; |
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36 import java.util.Stack; |
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37 |
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38 import org.xml.sax.Attributes; |
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39 import org.xml.sax.SAXException; |
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40 import org.xml.sax.ext.LexicalHandler; |
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41 import org.xml.sax.helpers.DefaultHandler; |
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42 import com.sun.xml.internal.fastinfoset.CommonResourceBundle; |
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43 |
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44 public class SAXEventSerializer extends DefaultHandler |
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45 implements LexicalHandler { |
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46 |
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47 private Writer _writer; |
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48 private boolean _charactersAreCDATA; |
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49 private StringBuffer _characters; |
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50 |
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51 private Stack _namespaceStack = new Stack(); |
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52 protected List _namespaceAttributes; |
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53 |
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54 public SAXEventSerializer(OutputStream s) throws IOException { |
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55 _writer = new OutputStreamWriter(s); |
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56 _charactersAreCDATA = false; |
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57 } |
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58 |
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59 // -- ContentHandler interface --------------------------------------- |
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60 |
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61 public void startDocument() throws SAXException { |
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62 try { |
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63 _writer.write("<sax xmlns=\"http://www.sun.com/xml/sax-events\">\n"); |
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64 _writer.write("<startDocument/>\n"); |
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65 _writer.flush(); |
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66 } |
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67 catch (IOException e) { |
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68 throw new SAXException(e); |
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69 } |
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70 } |
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71 |
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72 public void endDocument() throws SAXException { |
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73 try { |
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74 _writer.write("<endDocument/>\n"); |
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75 _writer.write("</sax>"); |
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76 _writer.flush(); |
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77 _writer.close(); |
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78 } |
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79 catch (IOException e) { |
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80 throw new SAXException(e); |
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81 } |
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82 } |
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83 |
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84 |
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85 public void startPrefixMapping(String prefix, String uri) |
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86 throws SAXException |
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87 { |
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88 if (_namespaceAttributes == null) { |
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89 _namespaceAttributes = new ArrayList(); |
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90 } |
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91 |
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92 String qName = (prefix.length() == 0) ? "xmlns" : "xmlns" + prefix; |
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93 AttributeValueHolder attribute = new AttributeValueHolder( |
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94 qName, |
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95 prefix, |
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96 uri, |
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97 null, |
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98 null); |
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99 _namespaceAttributes.add(attribute); |
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100 } |
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101 |
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102 public void endPrefixMapping(String prefix) |
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103 throws SAXException |
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104 { |
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105 /* |
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106 try { |
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107 outputCharacters(); |
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108 |
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109 _writer.write("<endPrefixMapping prefix=\"" + |
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110 prefix + "\"/>\n"); |
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111 _writer.flush(); |
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112 } |
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113 catch (IOException e) { |
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114 throw new SAXException(e); |
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115 } |
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116 */ |
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117 } |
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118 |
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119 public void startElement(String uri, String localName, |
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120 String qName, Attributes attributes) |
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121 throws SAXException |
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122 { |
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123 try { |
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124 outputCharacters(); |
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125 |
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126 if (_namespaceAttributes != null) { |
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127 |
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128 AttributeValueHolder[] attrsHolder = new AttributeValueHolder[0]; |
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129 attrsHolder = (AttributeValueHolder[])_namespaceAttributes.toArray(attrsHolder); |
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130 |
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131 // Sort attributes |
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132 quicksort(attrsHolder, 0, attrsHolder.length - 1); |
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133 |
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134 for (int i = 0; i < attrsHolder.length; i++) { |
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135 _writer.write("<startPrefixMapping prefix=\"" + |
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136 attrsHolder[i].localName + "\" uri=\"" + attrsHolder[i].uri + "\"/>\n"); |
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137 _writer.flush(); |
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138 } |
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139 |
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140 _namespaceStack.push(attrsHolder); |
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141 _namespaceAttributes = null; |
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142 } else { |
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143 _namespaceStack.push(null); |
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144 } |
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145 |
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146 AttributeValueHolder[] attrsHolder = |
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147 new AttributeValueHolder[attributes.getLength()]; |
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148 for (int i = 0; i < attributes.getLength(); i++) { |
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149 attrsHolder[i] = new AttributeValueHolder( |
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150 attributes.getQName(i), |
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151 attributes.getLocalName(i), |
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152 attributes.getURI(i), |
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153 attributes.getType(i), |
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154 attributes.getValue(i)); |
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155 } |
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156 |
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157 // Sort attributes |
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158 quicksort(attrsHolder, 0, attrsHolder.length - 1); |
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159 |
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160 int attributeCount = 0; |
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161 for (int i = 0; i < attrsHolder.length; i++) { |
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162 if (attrsHolder[i].uri.equals("http://www.w3.org/2000/xmlns/")) { |
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163 // Ignore XMLNS attributes |
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164 continue; |
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165 } |
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166 attributeCount++; |
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167 } |
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168 |
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169 if (attributeCount == 0) { |
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170 _writer.write("<startElement uri=\"" + uri |
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171 + "\" localName=\"" + localName + "\" qName=\"" |
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172 + qName + "\"/>\n"); |
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173 return; |
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174 } |
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175 |
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176 _writer.write("<startElement uri=\"" + uri |
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177 + "\" localName=\"" + localName + "\" qName=\"" |
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178 + qName + "\">\n"); |
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179 |
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180 // Serialize attributes as children |
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181 for (int i = 0; i < attrsHolder.length; i++) { |
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182 if (attrsHolder[i].uri.equals("http://www.w3.org/2000/xmlns/")) { |
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183 // Ignore XMLNS attributes |
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184 continue; |
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185 } |
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186 _writer.write( |
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187 " <attribute qName=\"" + attrsHolder[i].qName + |
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188 "\" localName=\"" + attrsHolder[i].localName + |
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189 "\" uri=\"" + attrsHolder[i].uri + |
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190 // "\" type=\"" + attrsHolder[i].type + |
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191 "\" value=\"" + attrsHolder[i].value + |
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192 "\"/>\n"); |
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193 } |
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194 |
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195 _writer.write("</startElement>\n"); |
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196 _writer.flush(); |
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197 } |
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198 catch (IOException e) { |
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199 throw new SAXException(e); |
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200 } |
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201 } |
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202 |
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203 public void endElement(String uri, String localName, String qName) |
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204 throws SAXException |
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205 { |
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206 try { |
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207 outputCharacters(); |
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208 |
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209 _writer.write("<endElement uri=\"" + uri |
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210 + "\" localName=\"" + localName + "\" qName=\"" |
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211 + qName + "\"/>\n"); |
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212 _writer.flush(); |
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213 |
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214 // Write out the end prefix here rather than waiting |
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215 // for the explicit events |
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216 AttributeValueHolder[] attrsHolder = (AttributeValueHolder[])_namespaceStack.pop(); |
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217 if (attrsHolder != null) { |
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218 for (int i = 0; i < attrsHolder.length; i++) { |
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219 _writer.write("<endPrefixMapping prefix=\"" + |
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220 attrsHolder[i].localName + "\"/>\n"); |
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221 _writer.flush(); |
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222 } |
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223 } |
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224 |
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225 } |
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226 catch (IOException e) { |
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227 throw new SAXException(e); |
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228 } |
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229 } |
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230 |
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231 public void characters(char[] ch, int start, int length) |
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232 throws SAXException |
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233 { |
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234 if (length == 0) { |
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235 return; |
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236 } |
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237 |
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238 if (_characters == null) { |
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239 _characters = new StringBuffer(); |
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240 } |
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241 |
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242 // Coalesce multiple character events |
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243 _characters.append(ch, start, length); |
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244 |
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245 /* |
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246 try { |
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247 _writer.write("<characters>" + |
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248 (_charactersAreCDATA ? "<![CDATA[" : "") + |
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249 new String(ch, start, length) + |
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250 (_charactersAreCDATA ? "]]>" : "") + |
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251 "</characters>\n"); |
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252 _writer.flush(); |
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253 } |
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254 catch (IOException e) { |
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255 throw new SAXException(e); |
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256 } |
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257 */ |
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258 } |
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259 |
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260 private void outputCharacters() throws SAXException { |
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261 if (_characters == null) { |
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262 return; |
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263 } |
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264 |
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265 try { |
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266 _writer.write("<characters>" + |
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267 (_charactersAreCDATA ? "<![CDATA[" : "") + |
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268 _characters + |
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269 (_charactersAreCDATA ? "]]>" : "") + |
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270 "</characters>\n"); |
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271 _writer.flush(); |
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272 |
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273 _characters = null; |
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274 } catch (IOException e) { |
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275 throw new SAXException(e); |
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276 } |
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277 } |
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278 |
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279 public void ignorableWhitespace(char[] ch, int start, int length) |
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280 throws SAXException |
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281 { |
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282 // Report ignorable ws as characters (assumes validation off) |
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283 characters(ch, start, length); |
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284 } |
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285 |
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286 public void processingInstruction(String target, String data) |
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287 throws SAXException |
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288 { |
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289 try { |
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290 outputCharacters(); |
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291 |
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292 _writer.write("<processingInstruction target=\"" + target |
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293 + "\" data=\"" + data + "\"/>\n"); |
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294 _writer.flush(); |
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295 } |
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296 catch (IOException e) { |
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297 throw new SAXException(e); |
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298 } |
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299 } |
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300 |
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301 // -- LexicalHandler interface --------------------------------------- |
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302 |
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303 public void startDTD(String name, String publicId, String systemId) |
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304 throws SAXException { |
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305 // Not implemented |
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306 } |
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307 |
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308 public void endDTD() |
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309 throws SAXException { |
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310 // Not implemented |
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311 } |
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312 |
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313 public void startEntity(String name) |
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314 throws SAXException { |
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315 // Not implemented |
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316 } |
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317 |
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318 public void endEntity(String name) |
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319 throws SAXException { |
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320 // Not implemented |
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321 } |
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322 |
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323 public void startCDATA() |
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324 throws SAXException { |
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325 _charactersAreCDATA = true; |
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326 } |
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327 |
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328 public void endCDATA() |
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329 throws SAXException { |
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330 _charactersAreCDATA = false; |
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331 } |
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332 |
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333 public void comment(char[] ch, int start, int length) |
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334 throws SAXException |
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335 { |
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336 try { |
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337 outputCharacters(); |
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338 |
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339 _writer.write("<comment>" + |
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340 new String(ch, start, length) + |
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341 "</comment>\n"); |
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342 _writer.flush(); |
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343 } |
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344 catch (IOException e) { |
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345 throw new SAXException(e); |
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346 } |
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347 } |
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348 |
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349 // -- Utility methods ------------------------------------------------ |
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350 |
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351 private void quicksort(AttributeValueHolder[] attrs, int p, int r) { |
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352 while (p < r) { |
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353 final int q = partition(attrs, p, r); |
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354 quicksort(attrs, p, q); |
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355 p = q + 1; |
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356 } |
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357 } |
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358 |
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359 private int partition(AttributeValueHolder[] attrs, int p, int r) { |
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360 AttributeValueHolder x = attrs[(p + r) >>> 1]; |
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361 int i = p - 1; |
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362 int j = r + 1; |
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363 while (true) { |
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364 while (x.compareTo(attrs[--j]) < 0); |
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365 while (x.compareTo(attrs[++i]) > 0); |
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366 if (i < j) { |
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367 final AttributeValueHolder t = attrs[i]; |
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368 attrs[i] = attrs[j]; |
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369 attrs[j] = t; |
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370 } |
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371 else { |
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372 return j; |
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373 } |
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374 } |
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375 } |
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376 |
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377 public static class AttributeValueHolder implements Comparable { |
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378 public final String qName; |
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379 public final String localName; |
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380 public final String uri; |
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381 public final String type; |
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382 public final String value; |
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383 |
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384 public AttributeValueHolder(String qName, |
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385 String localName, |
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386 String uri, |
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387 String type, |
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388 String value) |
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389 { |
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390 this.qName = qName; |
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391 this.localName = localName; |
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392 this.uri = uri; |
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393 this.type = type; |
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394 this.value = value; |
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395 } |
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396 |
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397 public int compareTo(Object o) { |
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398 try { |
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399 return qName.compareTo(((AttributeValueHolder) o).qName); |
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400 } |
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401 catch (Exception e) { |
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402 throw new RuntimeException(CommonResourceBundle.getInstance().getString("message.AttributeValueHolderExpected")); |
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403 } |
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404 } |
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405 } |
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406 |
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407 } |