DPML Notify

[mcconnell AT dpml.net]

Author: mcconnell AT dpml.net
Date: Sun Jun  5 18:30:01 2005
New Revision: 2729

Added:
   
development/main/transit/core/handler/src/main/net/dpml/transit/builder/RepositoryStorageHome.java
Modified:
   
development/main/transit/core/handler/src/main/net/dpml/transit/builder/PreferencesStorageHome.java
Log:
Put in place active storage management for the repository service sub-system.

Modified: 
development/main/transit/core/handler/src/main/net/dpml/transit/builder/PreferencesStorageHome.java
==============================================================================
--- 
development/main/transit/core/handler/src/main/net/dpml/transit/builder/PreferencesStorageHome.java
 (original)
+++ 
development/main/transit/core/handler/src/main/net/dpml/transit/builder/PreferencesStorageHome.java
 Sun Jun  5 18:30:01 2005
@@ -64,6 +64,7 @@
     private boolean m_purgePolicy = false;
 
     private ProxyStorageHome m_proxyHome;
+    private RepositoryStorageHome m_repositoryHome;
 
     // 
------------------------------------------------------------------------
     // ModificationListener
@@ -183,14 +184,14 @@
         //
         
         m_proxyHome = createProxyHome( creation );
-        ProxyManager proxy = m_proxyHome.create();
+        m_repositoryHome = createRepositoryHome( creation );
 
+        ProxyManager proxy = m_proxyHome.create();
+        RepositoryManager repository = m_repositoryHome.create();
 
-        //ProxyManager proxy = createProxyManager( creation );
         LayoutRegistryManager layout = createLayoutRegistryManager( creation 
);
         CacheManager cache = createCacheManager( creation, layout );
         ContentRegistryManager content = createContentRegistryManager( 
creation );
-        RepositoryManager repository = createRepositoryManager( creation );
 
         ModificationListener store = null;
         if( m_savePolicy )
@@ -277,6 +278,7 @@
         }
     }
 
+    /*
     private RepositoryManager createRepositoryManager( Date creation ) 
throws BuilderException
     {
         try
@@ -292,6 +294,25 @@
             throw new BuilderException( error, e );
         }
     }
+    */
+
+    private RepositoryStorageHome createRepositoryHome( Date creation ) 
throws BuilderException
+    {
+        try
+        {
+            boolean policy = getStoragePolicy();
+            Logger logger = getLogger().getChildLogger( "repository" );
+            Preferences prefs = getPreferences().node( "repository" );
+            return new RepositoryStorageHome( prefs, logger, creation, 
policy );
+        }
+        catch( Throwable e )
+        {
+            final String error = 
+              "An error occured during construction of the repository 
storage home.";
+            throw new BuilderException( error, e );
+        }
+    }
+
 
     private Preferences getPreferences()
     {

Added: 
development/main/transit/core/handler/src/main/net/dpml/transit/builder/RepositoryStorageHome.java
==============================================================================
--- (empty file)
+++ 
development/main/transit/core/handler/src/main/net/dpml/transit/builder/RepositoryStorageHome.java
  Sun Jun  5 18:30:01 2005
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2005 Stephen McConnell
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.dpml.transit.builder;
+
+import java.net.URI;
+import java.net.MalformedURLException;
+import java.net.PasswordAuthentication;
+import java.util.prefs.Preferences;
+import java.util.prefs.BackingStoreException;
+import java.util.Date;
+
+import net.dpml.transit.model.Logger;
+import net.dpml.transit.management.RepositoryManager;
+import net.dpml.transit.management.ModificationListener;
+import net.dpml.transit.management.ModificationEvent;
+import net.dpml.transit.manager.DefaultRepositoryManager;
+
+/**
+ * The LayoutHelper class is responsible for the setup of initial factory
+ * default preference settings.
+ */
+class RepositoryStorageHome extends AbstractStorageHome
+{
+    private ModificationListener m_listener;
+
+    // 
------------------------------------------------------------------------
+    // constructor
+    // 
------------------------------------------------------------------------
+
+    RepositoryStorageHome( Preferences prefs, Logger logger, Date creation, 
boolean policy )
+    {
+        super( prefs, logger, creation, policy );
+        if( policy )
+        {
+            m_listener = new StorageListener();
+        }
+    }
+
+    // 
------------------------------------------------------------------------
+    // internalization
+    // 
------------------------------------------------------------------------
+
+    public RepositoryManager create()
+      throws BuilderException
+    {
+        Preferences prefs = getPreferences();
+        Logger logger = getLogger();
+        Date creation = getCreationDate();
+        URI uri = getURI( "uri" );
+        DefaultRepositoryManager manager = new DefaultRepositoryManager( 
logger, creation, uri );
+        if( null != m_listener )
+        {
+            manager.addModificationListener( m_listener ); 
+        }
+        return manager;
+    }
+
+    // 
------------------------------------------------------------------------
+    // externalization
+    // 
------------------------------------------------------------------------
+
+    public void setRepositoryManager( RepositoryManager manager )
+      throws BuilderException
+    {
+        Preferences prefs = getPreferences();
+        URI uri = manager.getPluginURI();
+        synchronized( prefs )
+        {
+            setURI( "uri", uri );
+        }
+    }
+
+    private class StorageListener implements ModificationListener
+    {
+        public void modified( ModificationEvent event )
+        {
+            RepositoryManager manager = (RepositoryManager) 
event.getManager();
+            try
+            {
+                Date date = new Date();
+                setRepositoryManager( manager );
+                manager.setCreationDate( date );
+            }
+            catch( Throwable e )
+            {
+                // TODO: propergate the error up to the HCI
+                manager.getLogger().error( "storage failure", e );
+            }
+        }
+    }
+}
+
+