How to convert a JLAN filesystem - Revision history

Tommygonk at 15:50, 14 January 2019

2019-01-14T15:50:04Z

Tommygonk at 15:47, 14 January 2019

2019-01-14T15:47:44Z

Tommygonk: Created page with "JFileServer is a fork of the JLAN code with many changes to bring the code up to date and continue development of the virtual filesystem file server. In this article we will..."

2018-12-23T10:04:11Z

Created page with "JFileServer is a fork of the JLAN code with many changes to bring the code up to date and continue development of the virtual filesystem file server. In this article we will..."

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JFileServer is a fork of the JLAN code with many changes to bring the code up to date and continue development of the virtual filesystem file server.

In this article we will convert the sample filesystem driver that comes with JLAN over to the new JFileServer code. That is the JavaFileDiskDriver, JavaFileSearchContext and JavaNetworkFile classes in the org.alfresco.jlan.smb.server.disk package.

The JLAN code uses Java packages starting with org.alfresco.jlan whereas JFileServer has repackaged the code into the org.filesys packages. In the three source files replace 'org.alfresco.jlan' with 'org.filesys' in the imports sections. In the JavaNetworkFile.java file the imports section should now look like this :-

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;

import org.filesys.server.filesys.AccessMode;
import org.filesys.server.filesys.DiskFullException;
import org.filesys.server.filesys.NetworkFile;
import org.filesys.smb.SeekType;

In JLAN the main DiskInterface filesystem interface has the method int fileExists(SrvSession sess, TreeConnection tree, String name), in JFileServer this has changed to use an enum class for the return value - FileStatus fileExists(SrvSession sess, TreeConnection tree, String name).

In the JavaFileDiskDriver.java file change the method signature for the fileExists(...) method to return a FileStatus enum value.

In JFileServer the NetworkFile class now uses enum classes for the access type and flags values, via the NetworkFile.Access and NetworkFile.Flags enum inner classes.

We need to modify the JavaFileDiskDriver.java createFile() and openFile() methods to use the new NetworkFile.Access enum class. In the createFile() method change the call to setGrantedAccess() to :-

netFile.setGrantedAccess(NetworkFile.Access.READ_WRITE);

In the openFile() method change the calls to setGrantedAccess() to :-

if( params.isReadOnlyAccess())
netFile.setGrantedAccess( NetworkFile.Access.READ_ONLY);
else
netFile.setGrantedAccess( NetworkFile.Access.READ_WRITE);

In the JavaNetworkFile.java module openFile() method we need to change the call to create the RandomAccessFile to :-

m_io = new RandomAccessFile( m_file, getGrantedAccess() == NetworkFile.Access.READ_WRITE ? "rw" : "r");

The JLAN filesystem driver should now compile against the JFileServer classes. Converting a JLAN filesystem to the new JFileServer code is fairly straighforward.

@@ Line 15: / Line 15: @@
   import org.filesys.smb.SeekType;
-In JLAN the main DiskInterface filesystem interface has the method int fileExists(SrvSession sess, TreeConnection tree, String name), in JFileServer this has changed to use an enum class for the return value - FileStatus fileExists(SrvSession sess, TreeConnection tree, String name).
+In JLAN the main DiskInterface filesystem interface has the method ''int fileExists(SrvSession sess, TreeConnection tree, String name)'', in JFileServer this has changed to use an enum class for the return value - ''FileStatus fileExists(SrvSession sess, TreeConnection tree, String name)''.
-In the JavaFileDiskDriver.java file change the method signature for the fileExists(...) method to return a FileStatus enum value.
+In the JavaFileDiskDriver.java file change the method signature for the ''fileExists(...)'' method to return a FileStatus enum value.
-In JFileServer the NetworkFile class now uses enum classes for the access type and flags values, via the NetworkFile.Access and NetworkFile.Flags enum inner classes.
+In JFileServer the NetworkFile class now uses enum classes for the access type and flags values, via the ''NetworkFile.Access'' and ''NetworkFile.Flags'' enum inner classes.
-We need to modify the JavaFileDiskDriver.java createFile() and openFile() methods to use the new NetworkFile.Access enum class. In the createFile() method change the call to setGrantedAccess() to :-
+We need to modify the JavaFileDiskDriver.java ''createFile()'' and ''openFile()'' methods to use the new ''NetworkFile.Access'' enum class. In the ''createFile()'' method change the call to setGrantedAccess() to :-
   netFile.setGrantedAccess(NetworkFile.Access.READ_WRITE);
-In the openFile() method change the calls to setGrantedAccess() to :-
+In the ''openFile()'' method change the calls to setGrantedAccess() to :-
   if( params.isReadOnlyAccess())
@@ Line 32: / Line 32: @@
       netFile.setGrantedAccess( NetworkFile.Access.READ_WRITE);
-In the JavaNetworkFile.java module openFile() method we need to change the call to create the RandomAccessFile to :-
+In the JavaNetworkFile.java module ''openFile()'' method we need to change the call to create the RandomAccessFile to :-
   m_io = new RandomAccessFile( m_file, getGrantedAccess() == NetworkFile.Access.READ_WRITE ? "rw" : "r");
 The JLAN filesystem driver should now compile against the JFileServer classes. Converting a JLAN filesystem to the new JFileServer code is fairly straighforward.

@@ Line 1: / Line 1: @@
 JFileServer is a fork of the JLAN code with many changes to bring the code up to date and continue development of the virtual filesystem file server.
-In this article we will convert the sample filesystem driver that comes with JLAN over to the new JFileServer code. That is the JavaFileDiskDriver, JavaFileSearchContext and JavaNetworkFile classes in the org.alfresco.jlan.smb.server.disk package.
+In this article we will convert the sample filesystem driver that comes with JLAN over to the new JFileServer code. That is the JavaFileDiskDriver, JavaFileSearchContext and JavaNetworkFile classes in the ''org.alfresco.jlan.smb.server.disk'' package.
-The JLAN code uses Java packages starting with org.alfresco.jlan whereas JFileServer has repackaged the code into the org.filesys packages. In the three source files replace 'org.alfresco.jlan' with 'org.filesys' in the imports sections. In the JavaNetworkFile.java file the imports section should now look like this :-
+The JLAN code uses Java packages starting with ''org.alfresco.jlan'' whereas JFileServer has repackaged the code into the ''org.filesys'' packages. In the three source files replace '''org.alfresco.jlan''' with '''org.filesys''' in the imports sections. In the JavaNetworkFile.java file the imports section should now look like this :-
   import java.io.File;