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Alfresco repository filesystem oplocks implementation

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Oplock support can be switched off using the 'disableOplocks' property

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@18116 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Gary Spencer
2010-01-19 10:50:23 +00:00
parent 8db9d90a72
commit db17ae8831
5 changed files with 441 additions and 4 deletions
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51
source/java/org/alfresco/filesys/repo/ContentDiskDriver.java
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@@ -64,6 +64,8 @@ import org.alfresco.jlan.server.filesys.pseudo.PseudoFileList;
import org.alfresco.jlan.server.filesys.pseudo.PseudoNetworkFile;
import org.alfresco.jlan.server.locking.FileLockingInterface;
import org.alfresco.jlan.server.locking.LockManager;
import org.alfresco.jlan.server.locking.OpLockInterface;
import org.alfresco.jlan.server.locking.OpLockManager;
import org.alfresco.jlan.smb.SharingMode;
import org.alfresco.jlan.smb.WinNT;
import org.alfresco.jlan.smb.server.SMBServer;
@@ -97,7 +99,7 @@ import org.apache.commons.logging.LogFactory;
*
* @author Derek Hulley
*/
public class ContentDiskDriver extends AlfrescoDiskDriver implements DiskInterface, FileLockingInterface
public class ContentDiskDriver extends AlfrescoDiskDriver implements DiskInterface, FileLockingInterface, OpLockInterface
{
// Logging
@@ -130,7 +132,7 @@ public class ContentDiskDriver extends AlfrescoDiskDriver implements DiskInterfa
// Lock manager
private static LockManager _lockManager = new FileStateLockManager();
private static FileStateLockManager _lockManager = new FileStateLockManager();
/**
* Class constructor
@@ -430,6 +432,14 @@ public class ContentDiskDriver extends AlfrescoDiskDriver implements DiskInterfa
context.setDisableNodeMonitor(true);
}
// Check if oplocks are enabled, if so then enable oplocks in the lock manager
if ( cfg.getChild("disableOplocks") != null) {
context.setDisableOplocks( true);
}
// Register the device context
registerContext(context);
// Return the context for this shared filesystem
@@ -597,6 +607,17 @@ public class ContentDiskDriver extends AlfrescoDiskDriver implements DiskInterfa
NodeMonitor nodeMonitor = m_nodeMonitorFactory.createNodeMonitor( this, context);
context.setNodeMonitor( nodeMonitor);
}
// Check if oplocks are enabled
if ( context.getDisableOplocks() == false) {
// Enable oplock support
_lockManager.setStateTable( context.getStateTable());
}
else
logger.warn("Oplock support disabled for filesystem " + ctx.getDeviceName());
}
/**
@@ -3087,4 +3108,30 @@ public class ContentDiskDriver extends AlfrescoDiskDriver implements DiskInterfa
public LockManager getLockManager(SrvSession sess, TreeConnection tree) {
return _lockManager;
}
/**
* Return the oplock manager implementation associated with this virtual filesystem
*
* @param sess SrvSession
* @param tree TreeConnection
* @return OpLockManager
*/
public OpLockManager getOpLockManager(SrvSession sess, TreeConnection tree) {
return _lockManager;
}
/**
* Enable/disable oplock support
*
* @param sess SrvSession
* @param tree TreeConnection
* @return boolean
*/
public boolean isOpLocksEnabled(SrvSession sess, TreeConnection tree) {
// Check if oplocks are enabled
ContentContext ctx = (ContentContext) tree.getContext();
return ctx.getDisableOplocks() ? false : true;
}
}