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Added utility method to get a path for an AVM node as quickly as possible. Switched history

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viewing to use it.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@4944 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Britt Park
2007-01-26 16:34:36 +00:00
parent 30007cca42
commit c45bb470ba
10 changed files with 143 additions and 6 deletions
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78
source/java/org/alfresco/repo/avm/AVMRepository.java
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@@ -1254,6 +1254,22 @@ public class AVMRepository
return paths;
}
/**
* Get a single valid path for a node.
* @param desc The node descriptor.
* @return A version, path
*/
public Pair<Integer, String> getAPath(AVMNodeDescriptor desc)
{
AVMNode node = AVMDAOs.Instance().fAVMNodeDAO.getByID(desc.getId());
if (node == null)
{
throw new AVMNotFoundException("Could not find node: " + desc);
}
List<String> components = new ArrayList<String>();
return recursiveGetAPath(node, components);
}
/**
* Get all paths for a node reachable by HEAD.
* @param desc The node descriptor.
@@ -1272,6 +1288,13 @@ public class AVMRepository
return paths;
}
/**
* Get all paths in a particular store in the head version for
* a particular node.
* @param desc The node descriptor.
* @param store The name of the store.
* @return All matching paths.
*/
public List<Pair<Integer, String>> getPathsInStoreHead(AVMNodeDescriptor desc, String store)
{
AVMStore st = getAVMStoreByName(store);
@@ -1325,6 +1348,43 @@ public class AVMRepository
}
}
/**
* Do the work of getting one path for a node.
* @param node The node to get the path of.
* @param components The storage for path components.
* @return A path or null.
*/
private Pair<Integer, String> recursiveGetAPath(AVMNode node, List<String> components)
{
if (node.getIsRoot())
{
AVMStore store = AVMDAOs.Instance().fAVMStoreDAO.getByRoot(node);
if (store != null)
{
return new Pair<Integer, String>(-1, makePath(components, store.getName()));
}
VersionRoot vr = AVMDAOs.Instance().fVersionRootDAO.getByRoot(node);
if (vr != null)
{
return new Pair<Integer, String>(vr.getVersionID(), makePath(components, vr.getAvmStore().getName()));
}
return null;
}
List<ChildEntry> entries = AVMDAOs.Instance().fChildEntryDAO.getByChild(node);
for (ChildEntry entry : entries)
{
String name = entry.getKey().getName();
components.add(name);
Pair<Integer, String> path = recursiveGetAPath(entry.getKey().getParent(), components);
if (path != null)
{
return path;
}
components.remove(components.size() - 1);
}
return null;
}
/**
* Do the actual work.
* @param node The current node.
@@ -1390,6 +1450,17 @@ public class AVMRepository
*/
private void addPath(List<String> components, int version, String storeName,
List<Pair<Integer, String>> paths)
{
paths.add(new Pair<Integer, String>(version, makePath(components, storeName)));
}
/**
* Helper for generating paths.
* @param components The path components.
* @param storeName The store that the path is in.
* @return The path.
*/
private String makePath(List<String> components, String storeName)
{
StringBuilder pathBuilder = new StringBuilder();
pathBuilder.append(storeName);
@@ -1397,17 +1468,16 @@ public class AVMRepository
if (components.size() == 0)
{
pathBuilder.append("/");
paths.add(new Pair<Integer, String>(version, pathBuilder.toString()));
return;
return pathBuilder.toString();
}
for (int i = components.size() - 1; i >= 0; i--)
{
pathBuilder.append("/");
pathBuilder.append(components.get(i));
}
paths.add(new Pair<Integer, String>(version, pathBuilder.toString()));
return pathBuilder.toString();
}
/**
* Get information about layering of a path.
* @param version The version to look under.