Changeset 3900 for trunk/gsdl3/src/java/org/greenstone/gsdl3/service/ServiceRack.java

Timestamp:

2003-03-18T15:06:40+12:00 (21 years ago)

Author:

kjdon

Message:

changed the way the process methods are called - now if one is not found for the actuall class, the superclasses are checked for the method

File:

• trunk/gsdl3/src/java/org/greenstone/gsdl3/service/ServiceRack.java (modified) (2 diffs)

trunk/gsdl3/src/java/org/greenstone/gsdl3/service/ServiceRack.java

@@ -172 +172 @@
         Element response = null;
         if (service_info_map_.containsKey(to)) { 
-            
             try {
-            Class c = this.getClass();
-            Class []params = {Class.forName("org.w3c.dom.Element")};
-            Method m = c.getDeclaredMethod("process"+to, params);
+            Class c = this.getClass();
+            Class []params = {Class.forName("org.w3c.dom.Element")};
+
+            String method_name = "process"+to;
+            Method m = null;
+            while (c != null) {
+            
+            try {
+                m = c.getDeclaredMethod(method_name, params);
+                // if this has worked, break
+                break;
+            } catch (NoSuchMethodException e) {
+                System.out.println("method not found for this class, trying super class");
+                c = c.getSuperclass();
+            } catch (SecurityException e) {
+                System.out.println("security exception for finding a method, returning null");
+                return null;
+            }
+            } // while
+            if (m != null) {
             Object []args = {request};
-            response = (Element)m.invoke(this, args);
-            
-            } catch (Exception e) {
-            System.out.println("ServiceRack: Trying to call a processService type method (process"+to+") on a subclass("+this.getClass().getName()+"), but an exception happened:"+e.toString());
-            return null;
+            try {
+                response = (Element)m.invoke(this, args);
+                
+            } catch (Exception e) {
+                System.out.println("ServiceRack: Trying to call a processService type method (process"+to+") on a subclass("+this.getClass().getName()+"), but an exception happened:"+e.toString());
+                return null;
+            }
+            } else {
+            System.out.println("no method found");
             }
             if (response !=null) {
             mainResult.appendChild(doc_.importNode(response, true));
+            }
+                       
+            } catch (ClassNotFoundException e) {
+            System.out.println("ServiceRack error:element class not found");
+            return null;
             }
         } else {
@@ -194 +219 @@
         }
     } // for each request
-
-
+    
     return mainResult;