Move Attribute awareness to new init() event of TagHandler.

guacamole/src/main/java/net/sourceforge/guacamole/net/basic/xml/DocumentHandler.java

@@ -104,13 +104,16 @@ public class DocumentHandler extends DefaultHandler {
         // Otherwise, get handler from parent
         else {
             TagHandler parent_handler = current.getTagHandler();
-            handler = parent_handler.childElement(localName, attributes);
+            handler = parent_handler.childElement(localName);
         }
 
         // If no handler returned, the element was not expected
         if (handler == null)
             throw new SAXException("Unexpected element: '" + localName + "'");
 
+        // Initialize handler
+        handler.init(attributes);
+        
         // Append new element state to stack
         stack.addLast(new DocumentHandlerState(handler));
 

guacamole/src/main/java/net/sourceforge/guacamole/net/basic/xml/TagHandler.java

@@ -33,16 +33,25 @@ public interface TagHandler {
      * Called when a child element of the current element is parsed.
      *
      * @param localName The local name of the child element seen.
-     * @param attributes The attributes of the child element seen.
      * @return The TagHandler which should handle all element-level events
      *         related to the child element.
      * @throws SAXException If the child element being parsed was not expected,
      *                      or some other error prevents a proper TagHandler
      *                      from being constructed for the child element.
      */
-    public TagHandler childElement(String localName, Attributes attributes)
+    public TagHandler childElement(String localName)
             throws SAXException;
 
+    /**
+     * Called when the element corresponding to this TagHandler is first seen,
+     * just after an instance is created.
+     * 
+     * @param attributes The attributes of the element seen.
+     * @throws SAXException If an error prevents a the TagHandler from being
+     *                      from being initialized.
+     */
+    public void init(Attributes attributes) throws SAXException;
+    
     /**
      * Called when this element, and all child elements, have been fully parsed,
      * and the entire text content of this element (if any) is available.

guacamole/src/main/java/net/sourceforge/guacamole/net/basic/xml/user_mapping/AuthorizeTagHandler.java

@@ -44,14 +44,8 @@ public class AuthorizeTagHandler implements TagHandler {
      */
     private GuacamoleConfiguration default_config = null;
 
-    /**
+    @Override
-     * Creates a new handler for an "authorize" tag having the given
+    public void init(Attributes attributes) throws SAXException {
-     * attributes.
-     *
-     * @param attributes The attributes of the "authorize" tag.
-     * @throws SAXException If the attributes given are not valid.
-     */
-    public AuthorizeTagHandler(Attributes attributes) throws SAXException {
 
         // Init username and password
         authorization.setUsername(attributes.getValue("username"));
@@ -79,13 +73,13 @@ public class AuthorizeTagHandler implements TagHandler {
     }
 
     @Override
-    public TagHandler childElement(String localName, Attributes attributes) throws SAXException {
+    public TagHandler childElement(String localName) throws SAXException {
 
         // "connection" tag
         if (localName.equals("connection")) {
 
             // Get tag handler for connection tag
-            ConnectionTagHandler tagHandler = new ConnectionTagHandler(attributes);
+            ConnectionTagHandler tagHandler = new ConnectionTagHandler();
 
             // Store configuration stub
             GuacamoleConfiguration config_stub = tagHandler.asGuacamoleConfiguration();
@@ -103,7 +97,7 @@ public class AuthorizeTagHandler implements TagHandler {
                 authorization.addConfiguration("DEFAULT", default_config);
             }
 
-            return new ParamTagHandler(default_config, attributes);
+            return new ParamTagHandler(default_config);
         }
 
         // "protocol" tag

guacamole/src/main/java/net/sourceforge/guacamole/net/basic/xml/user_mapping/ConnectionTagHandler.java

@@ -40,22 +40,16 @@ public class ConnectionTagHandler implements TagHandler {
      */
     private String name;
 
-    /**
+    @Override
-     * Creates a new handler for an "connection" tag having the given
+    public void init(Attributes attributes) throws SAXException {
-     * attributes.
-     *
-     * @param attributes The attributes of the "connection" tag.
-     * @throws SAXException If the attributes given are not valid.
-     */
-    public ConnectionTagHandler(Attributes attributes) throws SAXException {
         name = attributes.getValue("name");
     }
 
     @Override
-    public TagHandler childElement(String localName, Attributes attributes) throws SAXException {
+    public TagHandler childElement(String localName) throws SAXException {
 
         if (localName.equals("param"))
-            return new ParamTagHandler(config, attributes);
+            return new ParamTagHandler(config);
 
         if (localName.equals("protocol"))
             return new ProtocolTagHandler(config);

guacamole/src/main/java/net/sourceforge/guacamole/net/basic/xml/user_mapping/ParamTagHandler.java

@@ -47,19 +47,18 @@ public class ParamTagHandler implements TagHandler {
      *
      * @param config The GuacamoleConfiguration to update with the data parsed
      *               from the "protocol" tag.
-     * @param attributes The attributes of the "param" tag.
-     * @throws SAXException If the attributes given are not valid.
      */
-    public ParamTagHandler(GuacamoleConfiguration config,
+    public ParamTagHandler(GuacamoleConfiguration config) {
-            Attributes attributes) throws SAXException {
-
         this.config = config;
-        this.name = attributes.getValue("name");
-
     }
 
     @Override
-    public TagHandler childElement(String localName, Attributes attributes) throws SAXException {
+    public void init(Attributes attributes) throws SAXException {
+        this.name = attributes.getValue("name");
+    }
+
+    @Override
+    public TagHandler childElement(String localName) throws SAXException {
         throw new SAXException("The 'param' tag can contain no elements.");
     }
 

guacamole/src/main/java/net/sourceforge/guacamole/net/basic/xml/user_mapping/ProtocolTagHandler.java

@@ -49,7 +49,12 @@ public class ProtocolTagHandler implements TagHandler {
     }
 
     @Override
-    public TagHandler childElement(String localName, Attributes attributes) throws SAXException {
+    public void init(Attributes attributes) throws SAXException {
+        // Do nothing
+    }
+
+    @Override
+    public TagHandler childElement(String localName) throws SAXException {
         throw new SAXException("The 'protocol' tag can contain no elements.");
     }
 

guacamole/src/main/java/net/sourceforge/guacamole/net/basic/xml/user_mapping/UserMappingTagHandler.java

@@ -37,14 +37,18 @@ public class UserMappingTagHandler implements TagHandler {
     private UserMapping user_mapping = new UserMapping();
 
     @Override
-    public TagHandler childElement(String localName, Attributes attributes) throws SAXException {
+    public void init(Attributes attributes) throws SAXException {
+        // Do nothing
+    }
+
+    @Override
+    public TagHandler childElement(String localName) throws SAXException {
 
         // Start parsing of authorize tags, add to list of all authorizations
         if (localName.equals("authorize")) {
 
             // Get tag handler for authorize tag
-            AuthorizeTagHandler tagHandler =
+            AuthorizeTagHandler tagHandler = new AuthorizeTagHandler();
-                    new AuthorizeTagHandler(attributes);
 
             // Store authorization stub in map of authorizations
             Authorization auth_stub = tagHandler.asAuthorization();