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This changes the AVM service to use ContentService for storage. This gives us,

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in theory, AVM working underneath (more or less) NodeService and ContentService.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@3481 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Britt Park
2006-08-10 21:50:34 +00:00
parent 9a2a67605c
commit 06df2021c8
28 changed files with 744 additions and 865 deletions
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65
source/java/org/alfresco/repo/avm/LayeredFileNodeImpl.java
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@@ -17,6 +17,8 @@
package org.alfresco.repo.avm;
import org.alfresco.service.cmr.repository.ContentData;
/**
* A LayeredFileNode behaves like a copy on write symlink.
* @author britt
@@ -81,13 +83,10 @@ class LayeredFileNodeImpl extends FileNodeImpl implements LayeredFileNode
{
throw new AVMException("Unbacked layered file node.");
}
// This is a mildly dirty trick. We use getContentForRead so as not to startle
// the ultimate destination content into copying itself prematurely.
FileContent content = ((FileNode)indirect).getContentForRead();
PlainFileNodeImpl newMe = new PlainFileNodeImpl(this,
content,
lPath.getAVMStore(),
getBasicAttributes());
PlainFileNodeImpl newMe = new PlainFileNodeImpl(lPath.getAVMStore(),
getBasicAttributes(),
getContentData(lPath),
getProperties());
newMe.setAncestor(this);
return newMe;
}
@@ -101,33 +100,6 @@ class LayeredFileNodeImpl extends FileNodeImpl implements LayeredFileNode
return AVMNodeType.LAYERED_FILE;
}
/**
* Get the content of the specified version.
* @return A FileContent object.
*/
public FileContent getContentForRead()
{
Lookup lookup = AVMRepository.GetInstance().lookup(-1, fIndirection);
AVMNode node = lookup.getCurrentNode();
if (node.getType() != AVMNodeType.LAYERED_FILE &&
node.getType() != AVMNodeType.PLAIN_FILE)
{
throw new AVMException("Missing Link.");
}
FileNode file = (FileNode)node;
return file.getContentForRead();
}
/**
* Get File Content for writing. Should never be called.
* @return Always null.
*/
public FileContent getContentForWrite()
{
assert false : "Never happens";
return null;
}
/**
* Get the underlying path.
* @param lookup The Lookup. (Unused here.)
@@ -256,4 +228,29 @@ class LayeredFileNodeImpl extends FileNodeImpl implements LayeredFileNode
{
fIndirection = indirection;
}
/**
* Set the ContentData for this file.
* @param contentData The value to set.
*/
public void setContentData(ContentData contentData)
{
throw new AVMException("Should not be called.");
}
/**
* Get the ContentData for this file.
* @return The ContentData object for this file.
*/
public ContentData getContentData(Lookup lPath)
{
Lookup lookup = lPath.getAVMStore().getAVMRepository().lookup(-1, getIndirection());
AVMNode node = lookup.getCurrentNode();
if (!(node instanceof FileNode))
{
throw new AVMException("Invalid target.");
}
FileNode file = (FileNode)node;
return file.getContentData(lookup);
}
}