|
7 | 7 | import java.lang.ClassNotFoundException; |
8 | 8 | import java.lang.IllegalAccessException; |
9 | 9 | import java.lang.InstantiationException; |
| 10 | +import java.util.Properties; |
10 | 11 | import java.lang.ClassCastException; |
11 | 12 |
|
12 | 13 | import javax.xml.parsers.SAXParser; |
13 | 14 |
|
14 | 15 | import javax.xml.sax.Parser; |
15 | | - |
| 16 | +import javax.xml.sax.XMLReader; |
| 17 | +import javax.xml.validation.Schema; |
16 | 18 |
|
17 | 19 | /** |
18 | | - * Java-specific class for dynamically loading SAX parsers. |
19 | | - * |
20 | | - * <p>This class is not part of the platform-independent definition |
21 | | - * of SAX; it is an additional convenience class designed |
22 | | - * specifically for Java XML application writers. SAX applications |
23 | | - * can use the static methods in this class to allocate a SAX parser |
24 | | - * dynamically at run-time based either on the value of the |
25 | | - * `org.xml.sax.parser' system property or on a string containing the class |
26 | | - * name.</p> |
27 | | - * |
28 | | - * <p>Note that the application still requires an XML parser that |
29 | | - * implements SAX.</p> |
30 | | - * |
31 | | - * @author David Megginson (ak117@freenet.carleton.ca) |
32 | | - * @version 1.0 |
33 | | - * @see org.xml.sax.Parser |
34 | | - * @see java.lang.Class |
35 | | - */ |
| 20 | + * |
| 21 | + * SwingJS note: These class in the JDK is abstract. Here we allow instantiation |
| 22 | + * just of this. The default parser created is swingjs.JSSAXParser, a minimal implementation, |
| 23 | + * but this default can be set by the developer on the page using |
| 24 | + * |
| 25 | + * System.setProperty("org.xml.sax.parser", fullClassName); |
| 26 | + * |
| 27 | + * |
| 28 | + * Create a new Java-specific class for dynamically loading SAX parsers. |
| 29 | + * |
| 30 | + * <p> |
| 31 | + * This class is not part of the platform-independent definition of SAX; it is |
| 32 | + * an additional convenience class designed specifically for Java XML |
| 33 | + * application writers. SAX applications can use the static methods in this |
| 34 | + * class to allocate a SAX parser dynamically at run-time based either on the |
| 35 | + * value of the `org.xml.sax.parser' system property or on a string containing |
| 36 | + * the class name. |
| 37 | + * </p> |
| 38 | + * |
| 39 | + * <p> |
| 40 | + * Note that the application still requires an XML parser that implements SAX. |
| 41 | + * </p> |
| 42 | + * |
| 43 | + * @author David Megginson (ak117@freenet.carleton.ca) |
| 44 | + * @version 1.0 |
| 45 | + * @see org.xml.sax.Parser |
| 46 | + * @see java.lang.Class |
| 47 | + */ |
36 | 48 | @SuppressWarnings("deprecation") |
37 | 49 | public class SAXParserFactory { |
38 | 50 |
|
| 51 | + private Properties props = new Properties(); |
| 52 | + |
| 53 | + private boolean validating; |
| 54 | + private boolean xIncludeAware; |
| 55 | + private boolean nameSpaceAware; |
| 56 | + |
| 57 | + Schema schema; // SwingJS: This class is not implemented |
| 58 | + |
| 59 | + /** |
| 60 | + * Obtain a new instance of a SAXParserFactory from class name. |
| 61 | + * |
| 62 | + * |
| 63 | + * @param factoryClassName |
| 64 | + * @param classLoader |
| 65 | + * @return |
| 66 | + * @throws ClassNotFoundException |
| 67 | + * @throws IllegalAccessException |
| 68 | + * @throws InstantiationException |
| 69 | + */ |
| 70 | + static SAXParserFactory newInstance(String factoryClassName, ClassLoader classLoader) throws InstantiationException, IllegalAccessException, ClassNotFoundException { |
| 71 | + return (SAXParserFactory) Class.forName(factoryClassName).newInstance(); |
| 72 | + } |
| 73 | + |
39 | 74 | /** |
40 | 75 | * Just use this class |
41 | 76 | * |
42 | 77 | * @return |
43 | 78 | */ |
44 | 79 |
|
45 | | - public static SAXParserFactory newInstance() { |
46 | | - return new SAXParserFactory(); |
47 | | - } |
48 | | - |
49 | | - /** |
50 | | - * Just get a Parser |
51 | | - * |
52 | | - * @return |
53 | | - */ |
54 | | - public SAXParser newSAXParser() { |
55 | | - try { |
56 | | - // double qualification will be ignored in JavaScript |
57 | | - return (SAXParser) (Object) makeParser(); |
| 80 | + public static SAXParserFactory newInstance() { |
| 81 | + return new SAXParserFactory(); |
| 82 | + } |
| 83 | + |
| 84 | + /** |
| 85 | + * Just get a Parser |
| 86 | + * |
| 87 | + * @return |
| 88 | + */ |
| 89 | + public SAXParser newSAXParser() { |
| 90 | + try { |
| 91 | + SAXParser p = (SAXParser) makeParser(); |
| 92 | + if (p instanceof XMLReader) { |
| 93 | + XMLReader r = (XMLReader) p; |
| 94 | + for (Object name : props.keySet()) { |
| 95 | + r.setProperty((String) name, props.getProperty((String)name)); |
| 96 | + } |
| 97 | + } |
| 98 | + return p; |
58 | 99 | } catch (Exception e) { |
59 | 100 | return null; |
60 | 101 | } |
61 | | - } |
62 | | - |
63 | | - |
64 | | - /** |
65 | | - * Create a new SAX parser using the `org.xml.sax.parser' system property. |
66 | | - * |
67 | | - * <p>The named class must exist and must implement the |
68 | | - * org.xml.sax.Parser interface.</p> |
69 | | - * |
70 | | - * @exception java.lang.NullPointerException There is no value |
71 | | - * for the `org.xml.sax.parser' system property. |
72 | | - * @exception java.lang.ClassNotFoundException The SAX parser |
73 | | - * class was not found (check your CLASSPATH). |
74 | | - * @exception IllegalAccessException The SAX parser class was |
75 | | - * found, but you do not have permission to load |
76 | | - * it. |
77 | | - * @exception InstantiationException The SAX parser class was |
78 | | - * found but could not be instantiated. |
79 | | - * @exception java.lang.ClassCastException The SAX parser class |
80 | | - * was found and instantiated, but does not implement |
81 | | - * org.xml.sax.Parser. |
82 | | - * @see #makeParser(java.lang.String) |
83 | | - * @see org.xml.sax.Parser |
84 | | - */ |
85 | | - public static Parser makeParser () |
86 | | - throws ClassNotFoundException, |
87 | | - IllegalAccessException, |
88 | | - InstantiationException, |
89 | | - NullPointerException, |
90 | | - ClassCastException |
91 | | - { |
92 | | - // SwingJS -- directs to swingjs.JSSAXParser |
93 | | - String className = System.getProperty("org.xml.sax.parser", "swingjs.JSSAXParser"); |
94 | | - if (className == null) { |
95 | | - throw new NullPointerException("No value for sax.parser property"); |
96 | | - } else { |
97 | | - return makeParser(className); |
98 | | - } |
99 | | - } |
100 | | - |
101 | | - /** |
102 | | - * Create a new SAX parser object using the class name provided. |
103 | | - * |
104 | | - * <p>The named class must exist and must implement the |
105 | | - * org.xml.sax.Parser interface.</p> |
106 | | - * |
107 | | - * @param className A string containing the name of the |
108 | | - * SAX parser class. |
109 | | - * @exception java.lang.ClassNotFoundException The SAX parser |
110 | | - * class was not found (check your CLASSPATH). |
111 | | - * @exception IllegalAccessException The SAX parser class was |
112 | | - * found, but you do not have permission to load |
113 | | - * it. |
114 | | - * @exception InstantiationException The SAX parser class was |
115 | | - * found but could not be instantiated. |
116 | | - * @exception java.lang.ClassCastException The SAX parser class |
117 | | - * was found and instantiated, but does not implement |
118 | | - * org.xml.sax.Parser. |
119 | | - * @see #makeParser() |
120 | | - * @see org.xml.sax.Parser |
121 | | - */ |
122 | | - public static Parser makeParser (String className) |
123 | | - throws ClassNotFoundException, |
124 | | - IllegalAccessException, |
125 | | - InstantiationException, |
126 | | - ClassCastException |
127 | | - { |
128 | | - return (Parser)(Class.forName(className).newInstance()); |
129 | | - } |
| 102 | + } |
130 | 103 |
|
131 | | -} |
| 104 | + /** |
| 105 | + * Create a new SAX parser using the `org.xml.sax.parser' system property. |
| 106 | + * |
| 107 | + * <p> |
| 108 | + * The named class must exist and must implement the org.xml.sax.Parser |
| 109 | + * interface. |
| 110 | + * </p> |
| 111 | + * |
| 112 | + * @exception java.lang.NullPointerException There is no |
| 113 | + * value for the `org.xml.sax.parser' system |
| 114 | + * property. |
| 115 | + * @exception java.lang.ClassNotFoundException The SAX |
| 116 | + * parser class was not found (check your |
| 117 | + * CLASSPATH). |
| 118 | + * @exception IllegalAccessException The SAX parser class was found, but you do |
| 119 | + * not have permission to load it. |
| 120 | + * @exception InstantiationException The SAX parser class was found but could |
| 121 | + * not be instantiated. |
| 122 | + * @exception java.lang.ClassCastException The SAX parser |
| 123 | + * class was found and instantiated, but does |
| 124 | + * not implement org.xml.sax.Parser. |
| 125 | + * @see #makeParser(java.lang.String) |
| 126 | + * @see org.xml.sax.Parser |
| 127 | + */ |
| 128 | + public static Parser makeParser() throws ClassNotFoundException, IllegalAccessException, InstantiationException, |
| 129 | + NullPointerException, ClassCastException { |
| 130 | + // SwingJS -- directs to swingjs.JSSAXParser |
| 131 | + String className = System.getProperty("org.xml.sax.parser", "swingjs.JSSAXParser"); |
| 132 | + if (className == null) { |
| 133 | + throw new NullPointerException("No value for sax.parser property"); |
| 134 | + } else { |
| 135 | + return makeParser(className); |
| 136 | + } |
| 137 | + } |
| 138 | + |
| 139 | + /** |
| 140 | + * |
| 141 | + * SAX parser object using the class name provided. |
| 142 | + * |
| 143 | + * <p> |
| 144 | + * The named class must exist and must implement the org.xml.sax.Parser |
| 145 | + * interface. |
| 146 | + * </p> |
| 147 | + * |
| 148 | + * @param className A string containing the name of the SAX parser class. |
| 149 | + * @exception java.lang.ClassNotFoundException The SAX |
| 150 | + * parser class was not found (check your |
| 151 | + * CLASSPATH). |
| 152 | + * @exception IllegalAccessException The SAX parser class was found, but you do |
| 153 | + * not have permission to load it. |
| 154 | + * @exception InstantiationException The SAX parser class was found but could |
| 155 | + * not be instantiated. |
| 156 | + * @exception java.lang.ClassCastException The SAX parser |
| 157 | + * class was found and instantiated, but does |
| 158 | + * not implement org.xml.sax.Parser. |
| 159 | + * @see #makeParser() |
| 160 | + * @see org.xml.sax.Parser |
| 161 | + */ |
| 162 | + public static Parser makeParser(String className) |
| 163 | + throws ClassNotFoundException, IllegalAccessException, InstantiationException, ClassCastException { |
| 164 | + return (Parser) (Class.forName(className).newInstance()); |
| 165 | + } |
| 166 | + |
| 167 | + /** |
| 168 | + * Returns the particular property requested for in the underlying |
| 169 | + * implementation of org.xml.sax.XMLReader. |
| 170 | + * |
| 171 | + * @param name |
| 172 | + * @return |
| 173 | + */ |
| 174 | + public boolean getFeature(String name) { |
| 175 | + return props.getProperty(name, "false").equals("true"); |
| 176 | + } |
| 177 | + |
| 178 | + |
| 179 | + /** |
| 180 | + * Gets the Schema object specified through the setSchema(Schema schema) method. |
| 181 | + * |
| 182 | + * @return |
| 183 | + */ |
| 184 | + public Schema getSchema() { |
| 185 | + return schema; |
| 186 | + } |
132 | 187 |
|
| 188 | + /** |
| 189 | + * Indicates whether or not the factory is configured to produce parsers which |
| 190 | + * are namespace aware. |
| 191 | + * |
| 192 | + * @return |
| 193 | + */ |
| 194 | + public boolean isNamespaceAware() { |
| 195 | + return nameSpaceAware; |
| 196 | + } |
| 197 | + |
| 198 | + /** |
| 199 | + * Indicates whether or not the factory is configured to produce parsers which |
| 200 | + * validate the XML content during parse. |
| 201 | + * |
| 202 | + * @return |
| 203 | + */ |
| 204 | + public boolean isValidating() { |
| 205 | + return validating; |
| 206 | + } |
| 207 | + |
| 208 | + /** |
| 209 | + * Get state of XInclude processing. |
| 210 | + * |
| 211 | + * @return |
| 212 | + */ |
| 213 | + public boolean isXIncludeAware() { |
| 214 | + return xIncludeAware; |
| 215 | + } |
| 216 | + |
| 217 | + public void setFeature(String name, boolean value) { |
| 218 | + props.setProperty(name, "" + value); |
| 219 | + } |
| 220 | + |
| 221 | + /** |
| 222 | + * Specifies that the parser produced by this code will provide support for XML |
| 223 | + * namespaces. |
| 224 | + * |
| 225 | + * @param awareness |
| 226 | + */ |
| 227 | + public void setNamespaceAware(boolean awareness) { |
| 228 | + nameSpaceAware = awareness; |
| 229 | + |
| 230 | + } |
| 231 | + |
| 232 | + /** |
| 233 | + * Set the Schema to be used by parsers created from this factory. |
| 234 | + * |
| 235 | + * @param schema |
| 236 | + */ |
| 237 | + public void setSchema(Schema schema) { |
| 238 | + this.schema = schema; |
| 239 | + } |
| 240 | + |
| 241 | + /** |
| 242 | + * Specifies that the parser produced by this code will validate documents as |
| 243 | + * they are parsed. |
| 244 | + * |
| 245 | + * @param validating |
| 246 | + */ |
| 247 | + public void setValidating(boolean validating) { |
| 248 | + this.validating = validating; |
| 249 | + } |
| 250 | + |
| 251 | + /** |
| 252 | + * Set state of XInclude processing. |
| 253 | + * |
| 254 | + * @param state |
| 255 | + */ |
| 256 | + public void setXIncludeAware(boolean state) { |
| 257 | + this.xIncludeAware = state; |
| 258 | + } |
| 259 | +} |
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