Add some org packages.

From-SVN: r43922

libjava/org/xml/sax/helpers/ParserFactory.java

@@ -0,0 +1,129 @@
+// SAX parser factory.
+// No warranty; no copyright -- use this as you will.
+// $Id: ParserFactory.java,v 1.1 2000/10/02 02:43:20 sboag Exp $
+
+package org.xml.sax.helpers;
+
+import java.lang.ClassNotFoundException;
+import java.lang.IllegalAccessException;
+import java.lang.InstantiationException;
+import java.lang.SecurityException;
+import java.lang.ClassCastException;
+
+import org.xml.sax.Parser;
+
+
+/**
+ * Java-specific class for dynamically loading SAX parsers.
+ *
+ * <blockquote>
+ * <em>This module, both source code and documentation, is in the
+ * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
+ * </blockquote>
+ *
+ * <p><strong>Note:</strong> This class is designed to work with the now-deprecated
+ * SAX1 {@link org.xml.sax.Parser Parser} class.  SAX2 applications should use
+ * {@link org.xml.sax.helpers.XMLReaderFactory XMLReaderFactory} instead.</p>
+ *
+ * <p>ParserFactory is not part of the platform-independent definition
+ * of SAX; it is an additional convenience class designed
+ * specifically for Java XML application writers.  SAX applications
+ * can use the static methods in this class to allocate a SAX parser
+ * dynamically at run-time based either on the value of the
+ * `org.xml.sax.parser' system property or on a string containing the class
+ * name.</p>
+ *
+ * <p>Note that the application still requires an XML parser that
+ * implements SAX1.</p>
+ *
+ * @deprecated This class works with the deprecated
+ *             {@link org.xml.sax.Parser Parser}
+ *             interface.
+ * @since SAX 1.0
+ * @author David Megginson, 
+ *         <a href="mailto:sax@megginson.com">sax@megginson.com</a>
+ * @version 2.0
+ * @see org.xml.sax.Parser
+ * @see java.lang.Class
+ */
+public class ParserFactory {
+    
+    
+    /**
+     * Private null constructor.
+     */
+    private ParserFactory ()
+    {
+    }
+    
+    
+    /**
+     * Create a new SAX parser using the `org.xml.sax.parser' system property.
+     *
+     * <p>The named class must exist and must implement the
+     * {@link org.xml.sax.Parser Parser} interface.</p>
+     *
+     * @exception java.lang.NullPointerException There is no value
+     *            for the `org.xml.sax.parser' system property.
+     * @exception java.lang.ClassNotFoundException The SAX parser
+     *            class was not found (check your CLASSPATH).
+     * @exception IllegalAccessException The SAX parser class was
+     *            found, but you do not have permission to load
+     *            it.
+     * @exception InstantiationException The SAX parser class was
+     *            found but could not be instantiated.
+     * @exception java.lang.ClassCastException The SAX parser class
+     *            was found and instantiated, but does not implement
+     *            org.xml.sax.Parser.
+     * @see #makeParser(java.lang.String)
+     * @see org.xml.sax.Parser
+     */
+    public static Parser makeParser ()
+	throws ClassNotFoundException,
+	IllegalAccessException, 
+	InstantiationException,
+	NullPointerException,
+	ClassCastException
+    {
+	String className = System.getProperty("org.xml.sax.parser");
+	if (className == null) {
+	    throw new NullPointerException("No value for sax.parser property");
+	} else {
+	    return makeParser(className);
+	}
+    }
+    
+    
+    /**
+     * Create a new SAX parser object using the class name provided.
+     *
+     * <p>The named class must exist and must implement the
+     * {@link org.xml.sax.Parser Parser} interface.</p>
+     *
+     * @param className A string containing the name of the
+     *                  SAX parser class.
+     * @exception java.lang.ClassNotFoundException The SAX parser
+     *            class was not found (check your CLASSPATH).
+     * @exception IllegalAccessException The SAX parser class was
+     *            found, but you do not have permission to load
+     *            it.
+     * @exception InstantiationException The SAX parser class was
+     *            found but could not be instantiated.
+     * @exception java.lang.ClassCastException The SAX parser class
+     *            was found and instantiated, but does not implement
+     *            org.xml.sax.Parser.
+     * @see #makeParser()
+     * @see org.xml.sax.Parser
+     */
+    public static Parser makeParser (String className)
+	throws ClassNotFoundException,
+	IllegalAccessException, 
+	InstantiationException,
+	ClassCastException
+    {
+	return (Parser)(Class.forName(className).newInstance());
+    }
+    
+}
+
+// end of ParserFactory.java