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Check point of Lookup Caching.

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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@4401 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Britt Park
2006-11-20 19:22:38 +00:00
parent a65d2952fc
commit 454a26767e
5 changed files with 233 additions and 64 deletions
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67
source/java/org/alfresco/repo/avm/AVMStoreImpl.java
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@@ -31,6 +31,7 @@ import java.util.TreeMap;
import org.alfresco.model.ContentModel;
import org.alfresco.repo.avm.util.RawServices;
import org.alfresco.repo.avm.util.SimplePath;
import org.alfresco.repo.domain.DbAccessControlList;
import org.alfresco.repo.domain.PropertyValue;
import org.alfresco.service.cmr.avm.AVMBadArgumentException;
@@ -583,70 +584,8 @@ public class AVMStoreImpl implements AVMStore, Serializable
*/
public Lookup lookup(int version, String path, boolean write, boolean includeDeleted)
{
// Make up a Lookup to hold the results.
Lookup result = new Lookup(this, fName);
if (path.length() == 0)
{
return null;
}
while (path.startsWith("/"))
{
path = path.substring(1);
}
while (path.endsWith("/"))
{
path = path.substring(0, path.length() - 1);
}
String[] pathElements = path.split("/+");
// Grab the root node to start the lookup.
DirectoryNode dir = null;
// Versions less than 0 mean get current.
if (version < 0)
{
dir = fRoot;
}
else
{
dir = AVMDAOs.Instance().fAVMNodeDAO.getAVMStoreRoot(this, version);
}
if (dir == null)
{
return null;
}
// Add an entry for the root.
result.add(dir, "", write);
dir = (DirectoryNode)result.getCurrentNode();
if (pathElements.length == 1 && pathElements[0].equals(""))
{
return result;
}
// Now look up each path element in sequence up to one
// before the end.
for (int i = 0; i < pathElements.length - 1; i++)
{
AVMNode child = dir.lookupChild(result, pathElements[i], includeDeleted);
if (child == null)
{
return null;
}
// Every element that is not the last needs to be a directory.
if (child.getType() != AVMNodeType.PLAIN_DIRECTORY &&
child.getType() != AVMNodeType.LAYERED_DIRECTORY)
{
return null;
}
result.add(child, pathElements[i], write);
dir = (DirectoryNode)result.getCurrentNode();
}
// Now look up the last element.
AVMNode child = dir.lookupChild(result, pathElements[pathElements.length - 1],
includeDeleted);
if (child == null)
{
return null;
}
result.add(child, pathElements[pathElements.length - 1], write);
return result;
SimplePath sPath = new SimplePath(path);
return RawServices.Instance().getLookupCache().lookup(this, version, sPath, write, includeDeleted);
}
/**

94
source/java/org/alfresco/repo/avm/LookupCache.java Normal file
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@@ -0,0 +1,94 @@
/**
*
*/
package org.alfresco.repo.avm;
import org.alfresco.repo.avm.util.SimplePath;
import org.apache.log4j.Logger;
/**
* All lookup traffic goes through here.
* @author britt
*/
public class LookupCache
{
private static Logger fgLogger = Logger.getLogger(LookupCache.class);
private AVMNodeDAO fAVMNodeDAO;
/**
* Make one up.
*/
public LookupCache()
{
}
/**
* Set up the node dao.
* @param dao The dao to set.
*/
public void setAvmNodeDAO(AVMNodeDAO dao)
{
fAVMNodeDAO = dao;
}
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());
// 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
{
dir = fAVMNodeDAO.getAVMStoreRoot(store, version);
}
if (dir == null)
{
return null;
}
// Add an entry for the root.
result.add(dir, "", 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.
for (int i = 0; i < path.size() - 1; i++)
{
AVMNode 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.getType() != AVMNodeType.PLAIN_DIRECTORY &&
child.getType() != AVMNodeType.LAYERED_DIRECTORY)
{
return null;
}
result.add(child, path.get(i), write);
dir = (DirectoryNode)result.getCurrentNode();
}
// Now look up the last element.
AVMNode child = dir.lookupChild(result, path.get(path.size() - 1),
includeDeleted);
if (child == null)
{
return null;
}
result.add(child, path.get(path.size() - 1), write);
return result;
}
}

15
source/java/org/alfresco/repo/avm/util/RawServices.java
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@@ -3,6 +3,7 @@
*/
package org.alfresco.repo.avm.util;
import org.alfresco.repo.avm.LookupCache;
import org.alfresco.repo.content.ContentStore;
import org.alfresco.repo.security.authentication.AuthenticationComponent;
import org.alfresco.service.cmr.dictionary.DictionaryService;
@@ -52,6 +53,11 @@ public class RawServices implements ApplicationContextAware
*/
private ContentStore fContentStore;
/**
* The LookupCache.
*/
private LookupCache fLookupCache;
/**
* Default constructor.
*/
@@ -120,6 +126,15 @@ public class RawServices implements ApplicationContextAware
return fContentStore;
}
public LookupCache getLookupCache()
{
if (fLookupCache == null)
{
fLookupCache = (LookupCache)fContext.getBean("lookupCache");
}
return fLookupCache;
}
public ApplicationContext getContext()
{
return fContext;

115
source/java/org/alfresco/repo/avm/util/SimplePath.java Normal file
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@@ -0,0 +1,115 @@
/**
*
*/
package org.alfresco.repo.avm.util;
/**
* Holds a simple path.
* @author britt
*/
public class SimplePath
{
/**
* The names of the path's components.
*/
private String [] fNames;
/**
* Construct a new one from a string.
* @param path The String representation of the path.
*/
public SimplePath(String path)
{
if (path.length() == 0)
{
fNames = new String[0];
return;
}
while (path.startsWith("/"))
{
path = path.substring(1);
}
while (path.endsWith("/"))
{
path = path.substring(0, path.length() - 1);
}
fNames = path.split("/+");
}
/**
* Get the component name at index.
* @param index The index of the component to get.
* @return The name of the component.
*/
public String get(int index)
{
return fNames[index];
}
/**
* Get the number of components in this path.
* @return The number of components.
*/
public int size()
{
return fNames.length;
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj)
{
if (this == obj)
{
return true;
}
if (!(obj instanceof SimplePath))
{
return false;
}
SimplePath o = (SimplePath)obj;
if (fNames.length != o.fNames.length)
{
return false;
}
for (int i = 0; i < fNames.length; i++)
{
if (!fNames[i].equals(o.fNames[i]))
{
return false;
}
}
return true;
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode()
{
int hash = 0;
for (String name : fNames)
{
hash += name.hashCode();
}
return hash;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/
@Override
public String toString()
{
StringBuilder builder = new StringBuilder();
for (String name : fNames)
{
builder.append('/');
builder.append(name);
}
return builder.toString();
}
}