Added AVM callback handlers to update the virtualization view pseudo folders when stores/versions are created or purged.

The callback handlers queue change notifications so Windows Explorer views that are open on a pseudo folder should update (most of the time).

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@4595 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Gary Spencer
2006-12-13 15:40:34 +00:00
parent 62ada8ea7f
commit 4834c89f5a
4 changed files with 327 additions and 7 deletions

View File

@@ -20,7 +20,17 @@ package org.alfresco.filesys.avm;
import org.alfresco.filesys.alfresco.AlfrescoContext;
import org.alfresco.filesys.alfresco.IOControlHandler;
import org.alfresco.filesys.server.filesys.DiskInterface;
import org.alfresco.filesys.server.filesys.FileName;
import org.alfresco.filesys.server.filesys.FileSystem;
import org.alfresco.filesys.server.filesys.NotifyChange;
import org.alfresco.filesys.server.state.FileState;
import org.alfresco.filesys.server.state.FileStateTable;
import org.alfresco.repo.avm.CreateStoreCallback;
import org.alfresco.repo.avm.CreateVersionCallback;
import org.alfresco.repo.avm.PurgeStoreCallback;
import org.alfresco.repo.avm.PurgeVersionCallback;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* AVM Filesystem Context Class
@@ -29,8 +39,13 @@ import org.alfresco.filesys.server.filesys.FileSystem;
*
* @author GKSpencer
*/
public class AVMContext extends AlfrescoContext {
public class AVMContext extends AlfrescoContext
implements CreateStoreCallback, PurgeStoreCallback, CreateVersionCallback, PurgeVersionCallback {
// Logging
private static final Log logger = LogFactory.getLog(AVMContext.class);
// Constants
//
// Version id that indicates the head version
@@ -149,4 +164,226 @@ public class AVMContext extends AlfrescoContext {
{
return null;
}
/**
* Create store call back handler
*
* @param storeName String
* @param versionID int
*/
public void storeCreated(String storeName)
{
// Make sure the file state cache is enabled
FileStateTable fsTable = getStateTable();
if ( fsTable == null)
return;
// Find the file state for the root folder
FileState rootState = fsTable.findFileState( FileName.DOS_SEPERATOR_STR);
if ( rootState != null && rootState.hasPseudoFiles())
{
// Add a pseudo folder for the new store
rootState.addPseudoFile( new StorePseudoFile( storeName));
// DEBUG
if ( logger.isDebugEnabled())
logger.debug( "Added pseudo folder for new store " + storeName);
// Send a change notification for the new folder
if ( hasChangeHandler())
{
// Build the filesystem relative path to the new store folder
StringBuilder str = new StringBuilder();
str.append( FileName.DOS_SEPERATOR);
str.append( storeName);
// Send the change notification
getChangeHandler().notifyDirectoryChanged(NotifyChange.ActionAdded, str.toString());
}
}
}
/**
* Purge store call back handler
*
* @param storeName String
*/
public void storePurged(String storeName)
{
// Make sure the file state cache is enabled
FileStateTable fsTable = getStateTable();
if ( fsTable == null)
return;
// Find the file state for the root folder
FileState rootState = fsTable.findFileState( FileName.DOS_SEPERATOR_STR);
if ( rootState != null && rootState.hasPseudoFiles())
{
// Remove the pseudo folder for the store
rootState.getPseudoFileList().removeFile( storeName, false);
// Build the filesystem relative path to the deleted store folder
StringBuilder pathStr = new StringBuilder();
pathStr.append( FileName.DOS_SEPERATOR);
pathStr.append( storeName);
// Remove the file state for the deleted store
String storePath = pathStr.toString();
fsTable.removeFileState( storePath);
// DEBUG
if ( logger.isDebugEnabled())
logger.debug( "Removed pseudo folder for purged store " + storeName);
// Send a change notification for the deleted folder
if ( hasChangeHandler())
{
// Send the change notification
getChangeHandler().notifyDirectoryChanged(NotifyChange.ActionRemoved, storePath);
}
}
}
/**
* Create version call back handler
*
* @param storeName String
* @param versionID int
*/
public void versionCreated(String storeName, int versionID)
{
// Make sure the file state cache is enabled
FileStateTable fsTable = getStateTable();
if ( fsTable == null)
return;
// Build the path to the store version folder
StringBuilder pathStr = new StringBuilder();
pathStr.append( FileName.DOS_SEPERATOR);
pathStr.append( storeName);
pathStr.append( FileName.DOS_SEPERATOR);
pathStr.append( AVMPath.VersionsFolder);
// Find the file state for the store versions folder
FileState verState = fsTable.findFileState( pathStr.toString());
if ( verState != null && verState.hasPseudoFiles())
{
// Create the version folder name
StringBuilder verStr = new StringBuilder();
verStr.append( AVMPath.VersionFolderPrefix);
verStr.append( versionID);
String verName = verStr.toString();
// Add a pseudo folder for the new version
verState.addPseudoFile( new VersionPseudoFile( verName));
// DEBUG
if ( logger.isDebugEnabled())
logger.debug( "Added pseudo folder for new version " + storeName + ":/" + verName);
// Send a change notification for the new folder
if ( hasChangeHandler())
{
// Build the filesystem relative path to the new version folder
pathStr.append( FileName.DOS_SEPERATOR);
pathStr.append( verName);
// Send the change notification
getChangeHandler().notifyDirectoryChanged(NotifyChange.ActionAdded, pathStr.toString());
}
}
}
/**
* Purge version call back handler
*
* @param storeName String
*/
public void versionPurged(String storeName, int versionID)
{
// Make sure the file state cache is enabled
FileStateTable fsTable = getStateTable();
if ( fsTable == null)
return;
// Build the path to the store version folder
StringBuilder pathStr = new StringBuilder();
pathStr.append( FileName.DOS_SEPERATOR);
pathStr.append( storeName);
pathStr.append( FileName.DOS_SEPERATOR);
pathStr.append( AVMPath.VersionsFolder);
// Find the file state for the store versions folder
FileState verState = fsTable.findFileState( pathStr.toString());
if ( verState != null && verState.hasPseudoFiles())
{
// Create the version folder name
StringBuilder verStr = new StringBuilder();
verStr.append( AVMPath.VersionFolderPrefix);
verStr.append( versionID);
String verName = verStr.toString();
// Remove the pseudo folder for the purged version
verState.getPseudoFileList().removeFile( verName, true);
// DEBUG
if ( logger.isDebugEnabled())
logger.debug( "Removed pseudo folder for purged version " + storeName + ":/" + verName);
// Send a change notification for the deleted folder
if ( hasChangeHandler())
{
// Build the filesystem relative path to the deleted version folder
pathStr.append( FileName.DOS_SEPERATOR);
pathStr.append( verName);
// Send the change notification
getChangeHandler().notifyDirectoryChanged(NotifyChange.ActionRemoved, pathStr.toString());
}
}
}
}