Added URL link pseudo files support. Split pseudo file classes to allow local filesystem and

in memory pseudo files.
Drag/drop and URL link pseudo files now only appear when using CIFS.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2229 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/filesys/smb/mailslot/HostAnnouncer.java

@@ -19,6 +19,7 @@ package org.alfresco.filesys.smb.mailslot;
 import java.io.IOException;
 
 import org.alfresco.filesys.netbios.NetBIOSName;
+import org.alfresco.filesys.netbios.win32.WinsockNetBIOSException;
 import org.alfresco.filesys.smb.ServerType;
 import org.alfresco.filesys.smb.TransactionNames;
 import org.alfresco.filesys.util.StringList;
@@ -323,6 +324,14 @@ public abstract class HostAnnouncer extends Thread
                         sleepTime = sleepNormal;
                 }
             }
+            catch (WinsockNetBIOSException ex)
+            {
+                // Debug
+
+                if (m_shutdown == false)
+                    logger.error("HostAnnouncer error", ex);
+                m_shutdown = true;
+            }
             catch ( IOException ex)
             {
                 // Debug

source/java/org/alfresco/filesys/smb/server/repo/ContentContext.java

@@ -46,6 +46,11 @@ public class ContentContext extends DiskDeviceContext
     
     private PseudoFile m_dragAndDropApp;
     
+    // URL pseudo file web path prefix (server/port/webapp) and link file name
+    
+    private String m_urlPathPrefix;
+    private String m_urlFileName;
+    
     /**
      * Class constructor
      *
@@ -159,6 +164,38 @@ public class ContentContext extends DiskDeviceContext
     {
         return m_dragAndDropApp;
     }
+
+    /**
+     * Determine if the URL pseudo file is enabled
+     * 
+     * @return boolean
+     */
+    public final boolean hasURLFile()
+    {
+        if ( m_urlPathPrefix != null && m_urlFileName != null)
+            return true;
+        return false;
+    }
+    
+    /**
+     * Return the URL pseudo file path prefix
+     * 
+     * @return String
+     */
+    public final String getURLPrefix()
+    {
+        return m_urlPathPrefix;
+    }
+    
+    /**
+     * Return the URL pseudo file name
+     * 
+     * @return String
+     */
+    public final String getURLFileName()
+    {
+        return m_urlFileName;
+    }
     
     /**
      * Set the drag and drop application details
@@ -169,4 +206,24 @@ public class ContentContext extends DiskDeviceContext
     {
         m_dragAndDropApp = dragDropApp;
     }
+    
+    /**
+     * Set the URL path prefix
+     * 
+     * @param urlPrefix String
+     */
+    public final void setURLPrefix(String urlPrefix)
+    {
+        m_urlPathPrefix = urlPrefix;
+    }
+    
+    /**
+     * Set the URL pseudo file name
+     * 
+     * @param urlFileName String
+     */
+    public final void setURLFileName(String urlFileName)
+    {
+        m_urlFileName = urlFileName;
+    }
 }

source/java/org/alfresco/filesys/smb/server/repo/ContentDiskDriver.java

@@ -47,12 +47,15 @@ import org.alfresco.filesys.server.filesys.TreeConnection;
 import org.alfresco.filesys.smb.SMBException;
 import org.alfresco.filesys.smb.SMBStatus;
 import org.alfresco.filesys.smb.SharingMode;
+import org.alfresco.filesys.smb.server.SMBSrvSession;
 import org.alfresco.filesys.smb.server.repo.FileState.FileStateStatus;
 import org.alfresco.filesys.smb.server.repo.pseudo.ContentPseudoFileImpl;
+import org.alfresco.filesys.smb.server.repo.pseudo.LocalPseudoFile;
 import org.alfresco.filesys.smb.server.repo.pseudo.PseudoFile;
 import org.alfresco.filesys.smb.server.repo.pseudo.PseudoFileInterface;
-import org.alfresco.filesys.smb.server.repo.pseudo.PseudoNetworkFile;
+import org.alfresco.filesys.smb.server.repo.pseudo.PseudoFileList;
 import org.alfresco.filesys.util.DataBuffer;
+import org.alfresco.filesys.util.WildCard;
 import org.alfresco.model.ContentModel;
 import org.alfresco.repo.security.authentication.AuthenticationComponent;
 import org.alfresco.service.cmr.coci.CheckOutCheckInService;
@@ -371,12 +374,8 @@ public class ContentDiskDriver implements DiskInterface, IOCtlInterface
                         
                         // Create the pseudo file for the drag and drop application
                         
-                        PseudoFile dragDropPseudo = new PseudoFile( pseudoName.getValue(), appFile.getAbsolutePath());
+                        PseudoFile dragDropPseudo = new LocalPseudoFile( pseudoName.getValue(), appFile.getAbsolutePath());
                         context.setDragAndDropApp( dragDropPseudo);
-                        
-                        // Enable pseudo file support
-                        
-                        m_pseudoFiles = new ContentPseudoFileImpl();
                     }
                 }
             }            
@@ -386,6 +385,45 @@ public class ContentDiskDriver implements DiskInterface, IOCtlInterface
             if ( logger.isDebugEnabled())
                 logger.debug("No I/O control handler available");
         }
+
+        // Check if URL link files are enabled
+        
+        ConfigElement urlFileElem = cfg.getChild( "urlFile");
+        if ( urlFileElem != null)
+        {
+            // Get the pseudo file name and web prefix path
+            
+            ConfigElement pseudoName = urlFileElem.getChild( "filename");
+            ConfigElement webPath    = urlFileElem.getChild( "webpath");
+            
+            if ( pseudoName != null && webPath != null)
+            {
+                // Make sure the web prefix has a trailing slash
+                
+                String path = webPath.getValue();
+                if ( path.endsWith("/") == false)
+                    path = path + "/";
+                
+                // URL file name must end with .url
+                
+                if ( pseudoName.getValue().endsWith(".url") == false)
+                    throw new DeviceContextException("URL link file must end with .url, " + pseudoName.getValue());
+                
+                // Set the URL link file name and web path
+                
+                context.setURLFileName( pseudoName.getValue());
+                context.setURLPrefix( path);
+            }
+        }
+        
+        // Enable pseudo file support if the drag and drop app and/or URL link files are enabled
+
+        if ( context.hasDragAndDropApp() || context.hasURLFile())
+        {
+            // Create the pseudo file handler
+            
+            m_pseudoFiles = new ContentPseudoFileImpl();
+        }
         
         // Check if locked files should be marked as offline
         
@@ -603,12 +641,14 @@ public class ContentDiskDriver implements DiskInterface, IOCtlInterface
             
             // If the state table is available see if we can speed up the search using either cached
             // file information or find the folder node to be searched without having to walk the path
-          
+
+            String[] paths = null;
+            
             if ( ctx.hasStateTable())
             {
                 // See if the folder to be searched has a file state, we can avoid having to walk the path
                 
-                String[] paths = FileName.splitPath(searchPath);
+                paths = FileName.splitPath(searchPath);
                 if ( paths[0] != null && paths[0].length() > 1)
                 {
                     // Get the file state for the folder being searched
@@ -631,6 +671,10 @@ public class ContentDiskDriver implements DiskInterface, IOCtlInterface
                         searchRootNodeRef = nodeRef;
                         searchFileSpec    = paths[1];
                         
+                        // Make sure the node ref is stored in the file state
+                        
+                        searchFolderState.setNodeRef( nodeRef);
+                        
                         // DEBUG
                         
                         if ( logger.isDebugEnabled())
@@ -639,12 +683,51 @@ public class ContentDiskDriver implements DiskInterface, IOCtlInterface
                 }
             }
             
-            // Start the search
+            // Perform the search
             
-            SearchContext searchCtx = ContentSearchContext.search(cifsHelper, searchRootNodeRef,
+            List<NodeRef> results = cifsHelper.getNodeRefs(searchRootNodeRef, searchFileSpec);
-                    searchFileSpec, attributes, searchFolderState);
+
+            // Check if there are any pseudo files for the folder being searched, for CIFS only
             
-            // done
+            PseudoFileList pseudoList = null;
+            
+            if ( sess instanceof SMBSrvSession && searchFolderState != null && searchFolderState.hasPseudoFiles())
+            {
+                // If it is a wildcard search use all pseudo files
+                
+                if ( WildCard.containsWildcards(searchFileSpec))
+                {
+                    // Check if the folder has any associated pseudo files
+                    
+                    pseudoList = searchFolderState.getPseudoFileList();
+                }
+                else if ( results == null || results.size() == 0)
+                {
+                    // Check if the required file is in the pseudo file list
+                    
+                    String fname = paths[1];
+                    
+                    if ( fname != null)
+                    {
+                        // Search for a matching pseudo file
+                        
+                        PseudoFile pfile = searchFolderState.getPseudoFileList().findFile( fname, true);
+                        if ( pfile != null)
+                        {
+                            // Create a file list with the required file
+                            
+                            pseudoList = new PseudoFileList();
+                            pseudoList.addFile( pfile);
+                        }
+                    }
+                }
+            }
+            
+            // Build the search context to store the results
+            
+            SearchContext searchCtx = new ContentSearchContext(cifsHelper, results, searchFileSpec, pseudoList);
+            
+            // Debug
             
             if (logger.isDebugEnabled())
             {
@@ -792,7 +875,7 @@ public class ContentDiskDriver implements DiskInterface, IOCtlInterface
                 {
                     // Create a network file to access the pseudo file data
                     
-                    return new PseudoNetworkFile( pfile.getFileName(), pfile.getFilePath(), params.getPath());
+                    return pfile.getFile( params.getPath());
                 }
             }
             
@@ -1641,6 +1724,13 @@ public class ContentDiskDriver implements DiskInterface, IOCtlInterface
         
         int count = file.readFile(buffer, size, bufferPosition, fileOffset);
         
+        if ( count == -1)
+        {
+            // Read count of -1 indicates a read past the end of file
+            
+            count = 0;
+        }
+        
         // done
         if (logger.isDebugEnabled())
         {

source/java/org/alfresco/filesys/smb/server/repo/ContentSearchContext.java

@@ -20,11 +20,9 @@ import java.io.FileNotFoundException;
 import java.util.List;
 
 import org.alfresco.filesys.server.filesys.FileInfo;
-import org.alfresco.filesys.server.filesys.FileName;
 import org.alfresco.filesys.server.filesys.SearchContext;
 import org.alfresco.filesys.smb.server.repo.pseudo.PseudoFile;
 import org.alfresco.filesys.smb.server.repo.pseudo.PseudoFileList;
-import org.alfresco.filesys.util.WildCard;
 import org.alfresco.service.cmr.repository.NodeRef;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -54,89 +52,14 @@ public class ContentSearchContext extends SearchContext
     private int resumeId;
     
     /**
-     * Performs a search against the direct children of the given node.
+     * Class constructor
-     * <p>
-     * Wildcard characters are acceptable, and the search may either be for
-     * a specific file or directory, or any file or directory.
      * 
-     * @param serviceRegistry used to gain access the the repository
+     * @param cifsHelper Filesystem helper class
-     * @param cifsHelper caches path query results
+     * @param results List of file/folder nodes that match the search pattern
-     * @param searchRootNodeRef the node whos children are to be searched
+     * @param searchStr Search path
-     * @param searchStr the search string relative to the search root node
+     * @param pseudoList List of pseudo files to be blended into the returned list of files
-     * @param attributes the search attributes, e.g. searching for folders, etc
-     * @param searchFolderState File state of the folder being searched
-     * @return Returns a search context with the results of the search
      */
-    public static ContentSearchContext search(
+    protected ContentSearchContext(
-            CifsHelper cifsHelper,
-            NodeRef searchRootNodeRef,
-            String searchStr,
-            int attributes,
-            FileState searchFolderState)
-    {
-        // Perform the search
-        
-        List<NodeRef> results = cifsHelper.getNodeRefs(searchRootNodeRef, searchStr);
-
-        // Check if there are any pseudo files for the folder being searched.
-        
-        PseudoFileList pseudoList = null;
-        
-        if ( searchFolderState != null && searchFolderState.hasPseudoFiles())
-        {
-            // If it is a wildcard search use all pseudo files
-            
-            if ( WildCard.containsWildcards(searchStr))
-            {
-                // Check if the folder has any associated pseudo files
-                
-                pseudoList = searchFolderState.getPseudoFileList();
-            }
-            else if ( results == null || results.size() == 0)
-            {
-                // Check if the required file is in the pseudo file list
-                
-                String fname = searchStr;
-                if ( fname.indexOf(FileName.DOS_SEPERATOR) != -1)
-                {
-                    String[] paths = FileName.splitPath( searchStr);
-                    fname = paths[1];
-                }
-                
-                if ( fname != null)
-                {
-                    // Search for a matching pseudo file
-                    
-                    PseudoFile pfile = searchFolderState.getPseudoFileList().findFile( fname, true);
-                    if ( pfile != null)
-                    {
-                        // Create a file list with the required file
-                        
-                        pseudoList = new PseudoFileList();
-                        pseudoList.addFile( pfile);
-                    }
-                }
-            }
-        }
-        
-        // Build the search context to store the results
-        
-        ContentSearchContext searchCtx = new ContentSearchContext(cifsHelper, results, searchStr, pseudoList);
-        
-        // done
-        if (logger.isDebugEnabled())
-        {
-            logger.debug("Search context created: \n" +
-                    "   search root: " + searchRootNodeRef + "\n" +
-                    "   search context: " + searchCtx);
-        }
-        return searchCtx;
-    }
-    
-    /**
-     * @see ContentSearchContext#search(FilePathCache, NodeRef, String, int)
-     */
-    private ContentSearchContext(
             CifsHelper cifsHelper,
             List<NodeRef> results,
             String searchStr,

source/java/org/alfresco/filesys/smb/server/repo/pseudo/ContentPseudoFileImpl.java

@@ -18,12 +18,10 @@
 package org.alfresco.filesys.smb.server.repo.pseudo;
 
 import org.alfresco.filesys.server.SrvSession;
-import org.alfresco.filesys.server.filesys.DiskDeviceContext;
-import org.alfresco.filesys.server.filesys.DiskInterface;
 import org.alfresco.filesys.server.filesys.FileName;
 import org.alfresco.filesys.server.filesys.TreeConnection;
+import org.alfresco.filesys.smb.server.SMBSrvSession;
 import org.alfresco.filesys.smb.server.repo.ContentContext;
-import org.alfresco.filesys.smb.server.repo.ContentDiskDriver;
 import org.alfresco.filesys.smb.server.repo.FileState;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -118,12 +116,23 @@ public class ContentPseudoFileImpl implements PseudoFileInterface
 
         int pseudoCnt = 0;
         ContentContext ctx = (ContentContext) tree.getContext();
+        FileState fstate = getStateForPath( ctx, path);
+
+        // Check if pseudo files have already been added for this folder
         
-        if ( ctx.hasDragAndDropApp())
+        if ( fstate.hasPseudoFiles())
+            return 0;
+        
+        // Check if this is a CIFS session
+        
+        boolean isCIFS = sess instanceof SMBSrvSession;
+        
+        // Add the drag and drop pseudo file, if enabled
+        
+        if ( isCIFS && ctx.hasDragAndDropApp())
         {
             // If the file state is null create a file state for the path
 
-            FileState fstate = getStateForPath( ctx, path);
             if ( fstate == null)
                 ctx.getStateTable().findFileState( path, true, true);
             
@@ -149,6 +158,38 @@ public class ContentPseudoFileImpl implements PseudoFileInterface
                     logger.info("Added drag/drop pseudo file for " + path);
             }
         }
+
+        // Add the URL link pseudo file, if enabled
+        
+        if ( isCIFS && ctx.hasURLFile() && fstate.getNodeRef() != null)
+        {
+            // Build the URL file data
+
+            StringBuilder urlStr = new StringBuilder();
+        
+            urlStr.append("[InternetShortcut]\r\n");
+            urlStr.append("URL=");
+            urlStr.append(ctx.getURLPrefix());
+            urlStr.append("navigate/browse/workspace/SpaceStore/");
+            urlStr.append( fstate.getNodeRef().getId());
+            urlStr.append("\r\n");
+
+            // Create the in memory pseudo file for the URL link
+            
+            byte[] urlData = urlStr.toString().getBytes();
+            
+            MemoryPseudoFile urlFile = new MemoryPseudoFile( ctx.getURLFileName(), urlData);
+            fstate.addPseudoFile( urlFile);
+            
+            // Update the count of files added
+            
+            pseudoCnt++;
+            
+            // DEBUG
+            
+            if ( logger.isInfoEnabled())
+                logger.info("Added URL link pseudo file for " + path);
+        }
         
         // Return the count of pseudo files added
         

source/java/org/alfresco/filesys/smb/server/repo/pseudo/LocalPseudoFile.java

@@ -0,0 +1,110 @@
+/*
+ * 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.smb.server.repo.pseudo;
+
+import java.io.File;
+
+import org.alfresco.filesys.server.filesys.FileInfo;
+import org.alfresco.filesys.server.filesys.NetworkFile;
+
+/**
+ * Local Pseudo File Class
+ * 
+ *  <p>Pseudo file class that uses a file on the local filesystem.
+ *  
+ * @author gkspencer
+ */
+public class LocalPseudoFile extends PseudoFile
+{
+    // Path to the file on the local filesystem
+    
+    private String m_path;
+    
+    /**
+     * Class constructor
+     * 
+     * @param name String
+     * @param path String
+     */
+    public LocalPseudoFile(String name, String path)
+    {
+        super(name);
+        
+        m_path = path;
+    }
+    
+    /**
+     * Return the path to the file on the local filesystem
+     * 
+     * @return String
+     */
+    public final String getFilePath()
+    {
+        return m_path;
+    }
+    
+    /**
+     * Return the file information for the pseudo file
+     *
+     * @return FileInfo
+     */
+    public FileInfo getFileInfo()
+    {
+        // Check if the file information is valid
+        
+        if ( m_fileInfo == null) {
+            
+            // Get the file details
+            
+            File localFile = new File( getFilePath());
+            if ( localFile.exists())
+            {
+                // Create the file information
+                
+                m_fileInfo = new FileInfo( getFileName(), localFile.length(), getAttributes());
+                
+                // Set the file creation/modification times
+                
+                m_fileInfo.setModifyDateTime( localFile.lastModified());
+                m_fileInfo.setCreationDateTime( _creationDateTime);
+                m_fileInfo.setChangeDateTime( _creationDateTime);
+
+                // Set the allocation size, round up the actual length
+                
+                m_fileInfo.setAllocationSize(( localFile.length() + 512L) & 0xFFFFFFFFFFFFFE00L);
+            }            
+        }
+        
+        // Return the file information
+        
+        return m_fileInfo;
+    }
+
+    /**
+     * Return a network file for reading/writing the pseudo file
+     * 
+     * @param netPath String
+     * @return NetworkFile
+     */
+    public NetworkFile getFile(String netPath)
+    {
+        // Create a pseudo file mapped to a file in the local filesystem
+        
+        return new PseudoNetworkFile( getFileName(), getFilePath(), netPath);
+    }
+}

source/java/org/alfresco/filesys/smb/server/repo/pseudo/MemoryNetworkFile.java

@@ -0,0 +1,261 @@
+/*
+ * 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.smb.server.repo.pseudo;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+
+import org.alfresco.filesys.server.filesys.AccessDeniedException;
+import org.alfresco.filesys.server.filesys.FileInfo;
+import org.alfresco.filesys.server.filesys.NetworkFile;
+import org.alfresco.filesys.smb.SeekType;
+
+/**
+ * In Memory Network File Class
+ * 
+ * <p>In memory network file implementation that uses a memory buffer for the file data.
+ * 
+ * @author gkspencer
+ */
+public class MemoryNetworkFile extends NetworkFile
+{
+    // Current file position
+    
+    private long m_filePos;
+
+    // File data
+    
+    private byte[] m_data;
+    
+    // End of file flag
+
+    private boolean m_eof;
+
+    /**
+     * Class constructor.
+     * 
+     * @param name String
+     * @param localPath String
+     * @param finfo FileInfo
+     */
+    public MemoryNetworkFile(String name, byte[] data, FileInfo finfo)
+    {
+        super( name);
+
+        // Set the file data
+        
+        m_data = data;
+        if ( m_data == null)
+            m_data = new byte[0];
+        
+        // Set the file size
+
+        setFileSize( m_data.length);
+        m_eof = false;
+
+        // Set the creation and modification date/times
+
+        setModifyDate( finfo.getModifyDateTime());
+        setCreationDate( finfo.getCreationDateTime());
+
+        // Set the file id and relative path
+
+        if ( finfo.getPath() != null)
+        {
+            setFileId( finfo.getPath().hashCode());
+            setFullName( finfo.getPath());
+        }
+    }
+
+    /**
+     * Close the network file.
+     */
+    public void closeFile() throws java.io.IOException
+    {
+        // Nothing to do
+    }
+
+    /**
+     * Return the current file position.
+     * 
+     * @return long
+     */
+    public long currentPosition()
+    {
+        return m_filePos;
+    }
+
+    /**
+     * Flush the file.
+     * 
+     * @exception IOException
+     */
+    public void flushFile() throws IOException
+    {
+        // Nothing to do
+    }
+
+    /**
+     * Determine if the end of file has been reached.
+     * 
+     * @return boolean
+     */
+    public boolean isEndOfFile() throws java.io.IOException
+    {
+        // Check if we reached end of file
+
+        if ( m_filePos == m_data.length)
+            return true;
+        return false;
+    }
+
+    /**
+     * Open the file.
+     * 
+     * @param createFlag boolean
+     * @exception IOException
+     */
+    public void openFile(boolean createFlag) throws java.io.IOException
+    {
+        // Indicate that the file is open
+
+        setClosed(false);
+    }
+
+    /**
+     * Read from the file.
+     * 
+     * @param buf byte[]
+     * @param len int
+     * @param pos int
+     * @param fileOff long
+     * @return Length of data read.
+     * @exception IOException
+     */
+    public int readFile(byte[] buf, int len, int pos, long fileOff) throws java.io.IOException
+    {
+        // Check if the read is within the file data range
+
+        long fileLen = (long) m_data.length;
+        
+        if ( fileOff >= fileLen)
+            return 0;
+        
+        // Calculate the actual read length
+
+        if (( fileOff + len) > fileLen)
+            len = (int) ( fileLen - fileOff);
+
+        // Copy the data to the user buffer
+        
+        System.arraycopy( m_data, (int) fileOff, buf, pos, len);
+
+        // Update the current file position
+        
+        m_filePos = fileOff + len;
+        
+        // Return the actual length of data read
+
+        return len;
+    }
+
+    /**
+     * Seek to the specified file position.
+     * 
+     * @param pos long
+     * @param typ int
+     * @return long
+     * @exception IOException
+     */
+    public long seekFile(long pos, int typ) throws IOException
+    {
+        // Seek to the required file position
+
+        switch (typ)
+        {
+        // From start of file
+
+        case SeekType.StartOfFile:
+            if (currentPosition() != pos)
+                m_filePos = pos;
+            break;
+
+        // From current position
+
+        case SeekType.CurrentPos:
+            m_filePos += pos;
+            break;
+
+        // From end of file
+
+        case SeekType.EndOfFile:
+            m_filePos += pos;
+            if ( m_filePos < 0)
+                m_filePos = 0L;
+            break;
+        }
+
+        // Return the new file position
+
+        return currentPosition();
+    }
+
+    /**
+     * Truncate the file
+     * 
+     * @param siz long
+     * @exception IOException
+     */
+    public void truncateFile(long siz) throws IOException
+    {
+        // Do not allow the file to be written to
+        
+        throw new AccessDeniedException("Cannot truncate pseudo file");
+    }
+
+    /**
+     * Write a block of data to the file.
+     * 
+     * @param buf byte[]
+     * @param len int
+     * @exception IOException
+     */
+    public void writeFile(byte[] buf, int len, int pos) throws java.io.IOException
+    {
+        // Do not allow the file to be written to
+        
+        throw new AccessDeniedException("Cannot write to pseudo file");
+    }
+
+    /**
+     * Write a block of data to the file.
+     * 
+     * @param buf byte[]
+     * @param len int
+     * @param pos int
+     * @param offset long
+     * @exception IOException
+     */
+    public void writeFile(byte[] buf, int len, int pos, long offset) throws java.io.IOException
+    {
+        // Do not allow the file to be written to
+        
+        throw new AccessDeniedException("Cannot write to pseudo file");
+    }
+}

source/java/org/alfresco/filesys/smb/server/repo/pseudo/MemoryPseudoFile.java

@@ -0,0 +1,95 @@
+/*
+ * 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.smb.server.repo.pseudo;
+
+import org.alfresco.filesys.server.filesys.FileInfo;
+import org.alfresco.filesys.server.filesys.NetworkFile;
+
+/**
+ * In Memory Pseudo File Class
+ * 
+ * <p>Pseudo file class that uses an in memory buffer for the file data.
+ *  
+ * @author gkspencer
+ */
+public class MemoryPseudoFile extends PseudoFile
+{
+    // File data buffer
+    
+    private byte[] m_data;
+    
+    /**
+     * Class constructor
+     * 
+     * @param name String
+     * @param data byte[]
+     */
+    public MemoryPseudoFile(String name, byte[] data)
+    {
+        super( name);
+        
+        m_data = data;
+    }
+    
+    /**
+     * Return the file information for the pseudo file
+     *
+     * @return FileInfo
+     */
+    public FileInfo getFileInfo()
+    {
+        // Check if the file information is valid
+        
+        if ( m_fileInfo == null) {
+            
+            // Create the file information
+            
+            m_fileInfo = new FileInfo( getFileName(), m_data != null ? m_data.length : 0, getAttributes());
+                
+            // Set the file creation/modification times
+            
+            m_fileInfo.setCreationDateTime( _creationDateTime);
+            m_fileInfo.setModifyDateTime( _creationDateTime);
+            m_fileInfo.setChangeDateTime( _creationDateTime);
+
+            // Set the allocation size, round up the actual length
+            
+            m_fileInfo.setAllocationSize(( m_fileInfo.getSize() + 512L) & 0xFFFFFFFFFFFFFE00L);
+        }
+        
+        // Return the file information
+        
+        return m_fileInfo;
+    }
+
+    /**
+     * Return a network file for reading/writing the pseudo file
+     * 
+     * @param netPath String
+     * @return NetworkFile
+     */
+    public NetworkFile getFile(String netPath)
+    {
+        // Create a pseudo file mapped to the in memory file data
+        
+        FileInfo finfo = getFileInfo();
+        finfo.setPath( netPath);
+        
+        return new MemoryNetworkFile( getFileName(), m_data, finfo);
+    }
+}

source/java/org/alfresco/filesys/smb/server/repo/pseudo/PseudoFile.java

@@ -21,6 +21,7 @@ import java.io.File;
 
 import org.alfresco.filesys.server.filesys.FileAttribute;
 import org.alfresco.filesys.server.filesys.FileInfo;
+import org.alfresco.filesys.server.filesys.NetworkFile;
 
 /**
  * Pseudo File Class
@@ -30,11 +31,11 @@ import org.alfresco.filesys.server.filesys.FileInfo;
  * 
  * @author gkspencer
  */
-public class PseudoFile
+public abstract class PseudoFile
 {
     // Dummy creation date/time to use for pseudo files
     
-    private static long _creationDateTime = System.currentTimeMillis();
+    protected static long _creationDateTime = System.currentTimeMillis();
     
     // File name for pseudo file
     
@@ -44,38 +45,29 @@ public class PseudoFile
     
     private int m_fileFlags = FileAttribute.ReadOnly;
     
-    // Path to the file data in the local filesystem
-    
-    private String m_filePath;
-    
     // File information, used for file information/folder searches
     
-    private FileInfo m_fileInfo;
+    protected FileInfo m_fileInfo;
     
     /**
      * Class constructor
      * 
      * @param name String
-     * @param path String
      */
-    public PseudoFile(String name, String path)
+    protected PseudoFile(String name)
     {
         m_fileName = name;
-        m_filePath = path;
     }
     
     /**
      * Class constructor
      * 
      * @param name String
-     * @param path String
      * @param flags int
      */
-    public PseudoFile(String name, String path, int flags)
+    protected PseudoFile(String name, int flags)
     {
         m_fileName = name;
-        m_filePath = path;
-        
         m_fileFlags = flags;
     }
     
@@ -89,16 +81,6 @@ public class PseudoFile
         return m_fileName;
     }
     
-    /**
-     * Return the path to the file data on the local filesystem
-     * 
-     * @return String
-     */
-    public final String getFilePath()
-    {
-        return m_filePath;
-    }
-    
     /**
      * Return the standard file attributes
      * 
@@ -114,37 +96,15 @@ public class PseudoFile
      *
      * @return FileInfo
      */
-    public final FileInfo getFileInfo()
+    public abstract FileInfo getFileInfo();
-    {
+    
-        // Check if the file information is valid
+    /**
-        
+     * Return a network file for reading/writing the pseudo file
-        if ( m_fileInfo == null) {
+     * 
-            
+     * @param netPath String
-            // Get the file details
+     * @return NetworkFile
-            
+     */
-            File localFile = new File( getFilePath());
+    public abstract NetworkFile getFile(String netPath);
-            if ( localFile.exists())
-            {
-                // Create the file information
-                
-                m_fileInfo = new FileInfo( getFileName(), localFile.length(), getAttributes());
-                
-                // Set the file creation/modification times
-                
-                m_fileInfo.setModifyDateTime( localFile.lastModified());
-                m_fileInfo.setCreationDateTime( _creationDateTime);
-                m_fileInfo.setChangeDateTime( _creationDateTime);
-
-                // Set the allocation size, round up the actual length
-                
-                m_fileInfo.setAllocationSize(( localFile.length() + 512L) & 0xFFFFFFFFFFFFFE00L);
-            }            
-        }
-        
-        // Return the file information
-        
-        return m_fileInfo;
-    }
     
     /**
      * Return the pseudo file as a string
@@ -158,13 +118,7 @@ public class PseudoFile
         str.append("[");
         str.append(getFileName());
         str.append(",");
-        str.append(getFilePath());
+        str.append(getFileInfo());
-        str.append(":");
-        
-        if ( m_fileInfo != null)
-            str.append( m_fileInfo.toString());
-        else
-            str.append("Null");
         str.append("]");
         
         return str.toString();