Пример #1
0
 /*
  * Obtain a new instance of a
  * <code>DocumentBuilderFactory</code>. This static method creates
  * a new factory instance.
  * This method uses the following ordered lookup procedure to determine
  * the <code>DocumentBuilderFactory</code> implementation class to
  * load:
  * <ul>
  * <li>
  * Use the <code>javax.xml.parsers.DocumentBuilderFactory</code> system
  * property.
  * </li>
  * <li>
  * Use the properties file "lib/jaxp.properties" in the JRE directory.
  * This configuration file is in standard <code>java.util.Properties
  * </code> format and contains the fully qualified name of the
  * implementation class with the key being the system property defined
  * above.
  *
  * The jaxp.properties file is read only once by the JAXP implementation
  * and it's values are then cached for future use.  If the file does not exist
  * when the first attempt is made to read from it, no further attempts are
  * made to check for its existence.  It is not possible to change the value
  * of any property in jaxp.properties after it has been read for the first time.
  * </li>
  * <li>
  * Use the Services API (as detailed in the JAR specification), if
  * available, to determine the classname. The Services API will look
  * for a classname in the file
  * <code>META-INF/services/javax.xml.parsers.DocumentBuilderFactory</code>
  * in jars available to the runtime.
  * </li>
  * <li>
  * Platform default <code>DocumentBuilderFactory</code> instance.
  * </li>
  * </ul>
  *
  * Once an application has obtained a reference to a
  * <code>DocumentBuilderFactory</code> it can use the factory to
  * configure and obtain parser instances.
  *
  *
  * <h2>Tip for Trouble-shooting</h2>
  * <p>Setting the <code>jaxp.debug</code> system property will cause
  * this method to print a lot of debug messages
  * to <tt>System.err</tt> about what it is doing and where it is looking at.</p>
  *
  * <p> If you have problems loading {@link DocumentBuilder}s, try:</p>
  * <pre>
  * java -Djaxp.debug=1 YourProgram ....
  * </pre>
  *
  * @return New instance of a <code>DocumentBuilderFactory</code>
  *
  * @exception FactoryConfigurationError if the implementation is not
  * available or cannot be instantiated.
  */
 public static DocumentBuilderFactory newInstance()
 {
     try {
         return((DocumentBuilderFactory)FactoryFinder.find(
                    /* The default property name according to the JAXP spec */
                    "javax.xml.parsers.DocumentBuilderFactory",
                    /* The fallback implementation class name */
                    "org.apache.xerces.jaxp.DocumentBuilderFactoryImpl"));
     } catch (FactoryFinder.ConfigurationError e) {
         throw new FactoryConfigurationError(e.getException(), e.getMessage());
     }
 }
Пример #2
0
 /*
  * @return New instance of a <code>DocumentBuilderFactory</code>
  *
  * @exception FactoryConfigurationError if the implementation is not
  * available or cannot be instantiated.
  */
 public static DocumentBuilderFactory newInstance(String factoryClassName,
                                                  java.lang.ClassLoader classLoader)
 {
     if (factoryClassName == null)
     {
         throw new FactoryConfigurationError("factoryClassName cannot be null.");
     }
     if (classLoader == null)
     {
         classLoader = SecuritySupport.getContextClassLoader();
     }
     try {
         return((DocumentBuilderFactory)FactoryFinder.newInstance(factoryClassName, classLoader, false));
     } catch (FactoryFinder.ConfigurationError e) {
         throw new FactoryConfigurationError(e.getException(), e.getMessage());
     }
 }