Kevin Roast b726c4d6db Merged DEV/TEMPORARY to HEAD
17667: Branch for SpringSurf integration - from HEAD r17665
   17668: Fix to ensure included scripts files are not loaded from a cached classpath loader.
   17670: Part 1 of SpringSurf integration - changes relating to spring-surf-core-1.0.0.CI-SNAPSHOT.jar
   17674: Part 2 of SpringSurf integration - changes relating to spring-surf-core-configservice-1.0.0.CI-SNAPSHOT.jar

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@17788 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
2009-12-14 13:41:05 +00:00

180 lines
6.0 KiB
Java

/*
* Copyright (C) 2005-2009 Alfresco Software Limited.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* As a special exception to the terms and conditions of version 2.0 of
* the GPL, you may redistribute this Program in connection with Free/Libre
* and Open Source Software ("FLOSS") applications as described in Alfresco's
* FLOSS exception. You should have recieved a copy of the text describing
* the FLOSS exception, and it is also available here:
* http://www.alfresco.com/legal/licensing"
*/
package org.alfresco.repo.avm;
import org.alfresco.repo.avm.util.SimplePath;
import org.alfresco.repo.security.permissions.AccessDeniedException;
import org.alfresco.service.cmr.security.PermissionService;
import org.springframework.extensions.surf.util.Pair;
/**
* A NO-OP implementation of AVM path lookup cache
*/
public class NOOPLookupCache implements LookupCache
{
/**
* Make one up.
*/
public NOOPLookupCache()
{
}
/**
* Lookup a path.
*
* @param store The AVMStore.
* @param version The versions.
* @param path The path we are looking up.
* @param write Whether this is a write lookup.
* @param includeDeleted
* @return
*/
public Lookup lookup(AVMStore store, int version, SimplePath path,
boolean write, boolean includeDeleted)
{
// Make up a Lookup to hold the results.
if (path.size() == 0)
{
return null;
}
Lookup result = new Lookup(store, store.getName(), version);
// Grab the root node to start the lookup.
DirectoryNode dir = null;
// Versions less than 0 mean get current.
if (version < 0)
{
dir = store.getRoot();
}
else
{
VersionRoot vRoot = AVMDAOs.Instance().fVersionRootDAO.getByVersionID(store, version);
if (vRoot != null)
{
dir = vRoot.getRoot();
}
// dir = fAVMNodeDAO.getAVMStoreRoot(store, version);
}
if (dir == null)
{
return null;
}
// Add an entry for the root.
result.add(dir, "", true, write);
dir = (DirectoryNode)result.getCurrentNode();
if (path.size() == 1 && path.get(0).equals(""))
{
return result;
}
// Now look up each path element in sequence up to one
// before the end.
DirectoryNode prevDir = null;
for (int i = 0; i < path.size() - 1; i++)
{
if (!AVMRepository.GetInstance().can(null, dir, PermissionService.READ_CHILDREN, result.getDirectlyContained()))
{
throw new AccessDeniedException("Not allowed to read children: " + path.get(i));
}
Pair<AVMNode, Boolean> child = dir.lookupChild(result, path.get(i), includeDeleted);
if (child == null)
{
return null;
}
// Every element that is not the last needs to be a directory.
if (child.getFirst().getType() != AVMNodeType.PLAIN_DIRECTORY &&
child.getFirst().getType() != AVMNodeType.LAYERED_DIRECTORY)
{
return null;
}
prevDir = (DirectoryNode)child.getFirst();
result.add(child.getFirst(), path.get(i), child.getSecond(), write);
dir = (DirectoryNode)result.getCurrentNode();
}
// Now look up the last element.
if (!AVMRepository.GetInstance().can(null, dir, PermissionService.READ_CHILDREN, result.getDirectlyContained()))
{
throw new AccessDeniedException("Not allowed to read children: " + path.get(path.size() - 1));
}
Pair<AVMNode, Boolean> child = dir.lookupChild(result, path.get(path.size() - 1),
includeDeleted);
if (child == null)
{
if (write && (dir.getType() == AVMNodeType.LAYERED_DIRECTORY))
{
// stale ?
ChildKey key = new ChildKey(prevDir, path.get(path.size() - 1));
ChildEntry entry = AVMDAOs.Instance().fChildEntryDAO.get(key);
if (entry != null)
{
if (!includeDeleted && entry.getChild().getType() == AVMNodeType.DELETED_NODE)
{
return null;
}
child = new Pair<AVMNode, Boolean>(AVMNodeUnwrapper.Unwrap(entry.getChild()), true);
}
else
{
return null;
}
}
else
{
return null;
}
}
result.add(child.getFirst(), path.get(path.size() - 1), child.getSecond(), write);
return result;
}
/* (non-Javadoc)
* @see org.alfresco.repo.avm.LookupCache#onWrite(java.lang.String)
*/
public void onWrite(String storeName)
{
}
/* (non-Javadoc)
* @see org.alfresco.repo.avm.LookupCache#onDelete(java.lang.String)
*/
public void onDelete(String storeName)
{
}
/* (non-Javadoc)
* @see org.alfresco.repo.avm.LookupCache#onSnapshot(java.lang.String)
*/
public void onSnapshot(String storeName)
{
}
/* (non-Javadoc)
* @see org.alfresco.repo.avm.LookupCache#reset()
*/
public void reset()
{
}
}