Refactoring of the pseudo file/desktop action code to allow use by AVM and repo filesystem drivers.

Added virtualization view to the AVM filesystem driver that shows all stores and versions using a single
shared filesystem.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@4443 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/filesys/server/pseudo/PseudoFileInterface.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * 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 org.alfresco.filesys.server.pseudo;
+
+import org.alfresco.filesys.server.SrvSession;
+import org.alfresco.filesys.server.filesys.TreeConnection;
+
+/**
+ * Pseudo File Interface
+ * 
+ * <p>Provides the ability to add files into the file listing of a folder.
+ * 
+ * @author gkspencer
+ */
+public interface PseudoFileInterface
+{
+    /**
+     * Check if the specified path refers to a pseudo file
+     * 
+     * @param sess SrvSession
+     * @param tree TreeConnection
+     * @param path String
+     * @return boolean
+     */
+    public boolean isPseudoFile(SrvSession sess, TreeConnection tree, String path);
+
+    /**
+     * Return the pseudo file for the specified path, or null if the path is not a pseudo file
+     * 
+     * @param sess SrvSession
+     * @param tree TreeConnection
+     * @param path String
+     * @return PseudoFile
+     */
+    public PseudoFile getPseudoFile(SrvSession sess, TreeConnection tree, String path);
+    
+    /**
+     * Add pseudo files to a folder so that they appear in a folder search
+     * 
+     * @param sess SrvSession
+     * @param tree TreeConnection
+     * @param path String
+     * @return int
+     */
+    public int addPseudoFilesToFolder(SrvSession sess, TreeConnection tree, String path);
+    
+    /**
+     * Delete a pseudo file
+     * 
+     * @param sess SrvSession
+     * @param tree TreeConnection
+     * @param path String
+     */
+    public void deletePseudoFile(SrvSession sess, TreeConnection tree, String path);
+}