Created a peer-aware DatabaseConfigRegistry that broadcasts changed runtime

configuration information to other peers so that they all remain in sync.

Also nixed constructor arguments to the peer manager so that it can be created
at server construct time like all other managers and be available for the
twisty maze of inter-registration that takes place during the manager init
process.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4814 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/admin/server/ConfigRegistry.java

@@ -147,21 +147,25 @@ public abstract class ConfigRegistry
             }
         }
 
+        // from SetListener
         public void entryAdded (EntryAddedEvent event)
         {
             serializeAttribute(event.getName());
         }
 
+        // from SetListener
         public void entryUpdated (EntryUpdatedEvent event)
         {
             serializeAttribute(event.getName());
         }
 
+        // from SetListener
         public void entryRemoved (EntryRemovedEvent event)
         {
             serializeAttribute(event.getName());
         }
 
+        // from ElementUpdateListener
         public void elementUpdated (ElementUpdatedEvent event)
         {
             Object value;
@@ -175,6 +179,7 @@ public abstract class ConfigRegistry
             updateValue(event.getName(), value);
         }
 
+        // from AttributeChangeListener
         public void attributeChanged (AttributeChangedEvent event)
         {
             // mirror this configuration update to the persistent config
@@ -216,8 +221,10 @@ public abstract class ConfigRegistry
             }
         }
 
-        /** Initializes a single field of a config distributed object from its corresponding value
-         * in the associated config repository. */
+        /**
+         * Initializes a single field of a config distributed object from its corresponding value
+         * in the associated config repository.
+         */
         protected void initField (Field field)
         {
             String key = nameToKey(field.getName());
@@ -293,15 +300,6 @@ public abstract class ConfigRegistry
             }
         }
 
-        /**
-         * Converts a config object field name (someConfigMember) to a configuration key
-         * (some_config_member).
-         */
-        protected String nameToKey (String attributeName)
-        {
-            return StringUtil.unStudlyName(attributeName).toLowerCase();
-        }
-
         /**
          * Get the specified attribute from the configuration object, and serialize it.
          */
@@ -318,7 +316,7 @@ public abstract class ConfigRegistry
             }
 
             if (value instanceof Streamable) {
-                serialize(key, value);
+                serialize(attributeName, key, value);
             } else {
                 Log.info("Unable to flush config obj change [cobj=" + object.getClass().getName() +
                          ", key=" + key + ", type=" + value.getClass().getName() +
@@ -329,7 +327,7 @@ public abstract class ConfigRegistry
         /**
          * Save the specified object as serialized data associated with the specified key.
          */
-        protected void serialize (String key, Object value)
+        protected void serialize (String name, String key, Object value)
         {
             ByteArrayOutInputStream out = new ByteArrayOutInputStream();
             ObjectOutputStream oout = new ObjectOutputStream(out);
@@ -342,6 +340,15 @@ public abstract class ConfigRegistry
             }
         }
 
+        /**
+         * Converts a config object field name (someConfigMember) to a configuration key
+         * (some_config_member).
+         */
+        protected String nameToKey (String attributeName)
+        {
+            return StringUtil.unStudlyName(attributeName).toLowerCase();
+        }
+
         protected abstract boolean getValue (String field, boolean defval);
         protected abstract short getValue (String field, short defval);
         protected abstract int getValue (String field, int defval);