DM-DM tidying:

- Added NodeCrawlerFactory interface and standard implementation
 - Removed test actions from the context files
 - ensure that the temporary store node is deleted when the transfer ends
 - Added missing error messages from the transfer properties file
 - Inserted abstract NodeFinder and NodeFilter to clean those interfaces up a little

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@19213 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/transfer/AbstractNodeFinder.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2009-2010 Alfresco Software Limited.
+ *
+ * This file is part of Alfresco
+ *
+ * Alfresco is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Alfresco is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.alfresco.repo.transfer;
+
+import org.alfresco.service.ServiceRegistry;
+import org.alfresco.service.cmr.transfer.NodeFinder;
+import org.springframework.extensions.surf.util.ParameterCheck;
+
+/**
+ * A utility base class that simplifies the creation of new node finders.
+ * 
+ * When used in conjunction with the standard node crawler ({@link StandardNodeCrawlerImpl}),
+ * node filters that extend this base class will automatically have the service registry
+ * injected into them and their <code>init</code> operations invoked at the appropriate time. 
+ * 
+ * @author Brian
+ * @since 3.3
+ */
+public abstract class AbstractNodeFinder implements NodeFinder
+{
+    protected ServiceRegistry serviceRegistry;
+    
+    public void init()
+    {
+        ParameterCheck.mandatory("serviceRegistry", serviceRegistry);
+    }
+
+    public void setServiceRegistry(ServiceRegistry serviceRegistry)
+    {
+        this.serviceRegistry = serviceRegistry;
+    }
+
+}