mirror of
https://github.com/Alfresco/alfresco-community-repo.git
synced 2025-06-02 17:35:18 +00:00
1125926c90
unused and misleading parameter. Fixed PlainFileNodeImpl copy from LayeredFileNode constructor so that properties will be correctly copied. Switched out the GPL mysql driver that I had been inadvertantly using. git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@3378 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
1054 lines
35 KiB
Java
1054 lines
35 KiB
Java
/*
|
|
* Copyright (C) 2006 Alfresco, Inc.
|
|
*
|
|
* Licensed under the Mozilla Public License version 1.1
|
|
* with a permitted attribution clause. You may obtain a
|
|
* copy of the License at
|
|
*
|
|
* http://www.alfresco.org/legal/license.txt
|
|
*
|
|
* Unless required by applicable law or agreed to in writing,
|
|
* software distributed under the License is distributed on an
|
|
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
|
|
* either express or implied. See the License for the specific
|
|
* language governing permissions and limitations under the
|
|
* License.
|
|
*/
|
|
|
|
package org.alfresco.repo.avm;
|
|
|
|
import java.io.File;
|
|
import java.io.InputStream;
|
|
import java.io.OutputStream;
|
|
import java.io.RandomAccessFile;
|
|
import java.util.ArrayList;
|
|
import java.util.Date;
|
|
import java.util.List;
|
|
import java.util.Map;
|
|
import java.util.SortedMap;
|
|
|
|
import org.alfresco.repo.domain.PropertyValue;
|
|
import org.alfresco.service.namespace.QName;
|
|
|
|
/**
|
|
* This or AVMStore are
|
|
* the implementors of the operations specified by AVMService.
|
|
* @author britt
|
|
*/
|
|
class AVMRepository
|
|
{
|
|
/**
|
|
* The single instance of AVMRepository.
|
|
*/
|
|
private static AVMRepository fgInstance;
|
|
|
|
/**
|
|
* The current lookup count.
|
|
*/
|
|
private ThreadLocal<Integer> fLookupCount;
|
|
|
|
/**
|
|
* The node id issuer.
|
|
*/
|
|
private Issuer fNodeIssuer;
|
|
|
|
/**
|
|
* The content id issuer;
|
|
*/
|
|
private Issuer fContentIssuer;
|
|
|
|
/**
|
|
* The layer id issuer.
|
|
*/
|
|
private Issuer fLayerIssuer;
|
|
|
|
/**
|
|
* The file storage directory.
|
|
*/
|
|
private String fStorage;
|
|
|
|
/**
|
|
* Create a new one. It's given issuers and a storage directory.
|
|
* @param nodeIssuer
|
|
* @param contentIssuer
|
|
* @param layerIssuer
|
|
* @param storage
|
|
*/
|
|
public AVMRepository(Issuer nodeIssuer,
|
|
Issuer contentIssuer,
|
|
Issuer layerIssuer,
|
|
String storage)
|
|
{
|
|
fStorage = storage;
|
|
fNodeIssuer = nodeIssuer;
|
|
fContentIssuer = contentIssuer;
|
|
fLayerIssuer = layerIssuer;
|
|
fLookupCount = new ThreadLocal<Integer>();
|
|
fgInstance = this;
|
|
}
|
|
|
|
/**
|
|
* Create a file.
|
|
* @param path The path to the containing directory.
|
|
* @param name The name for the new file.
|
|
*/
|
|
public OutputStream createFile(String path, String name)
|
|
{
|
|
fLookupCount.set(1);
|
|
String[] pathParts = SplitPath(path);
|
|
AVMStore rep = getAVMStoreByName(pathParts[0]);
|
|
// fSession.get().lock(rep, LockMode.UPGRADE);
|
|
return rep.createFile(pathParts[1], name);
|
|
}
|
|
|
|
/**
|
|
* Create a file with the given File as content.
|
|
* @param path The path to the containing directory.
|
|
* @param name The name to give the file.
|
|
* @param data The file contents.
|
|
*/
|
|
public void createFile(String path, String name, File data)
|
|
{
|
|
fLookupCount.set(1);
|
|
String[] pathParts = SplitPath(path);
|
|
AVMStore rep = getAVMStoreByName(pathParts[0]);
|
|
rep.createFile(pathParts[1], name, data);
|
|
}
|
|
|
|
/**
|
|
* Create a new directory.
|
|
* @param path The path to the containing directory.
|
|
* @param name The name to give the directory.
|
|
*/
|
|
public void createDirectory(String path, String name)
|
|
{
|
|
fLookupCount.set(1);
|
|
String[] pathParts = SplitPath(path);
|
|
AVMStore rep = getAVMStoreByName(pathParts[0]);
|
|
rep.createDirectory(pathParts[1], name);
|
|
}
|
|
|
|
/**
|
|
* Create a new layered directory.
|
|
* @param srcPath The target indirection for the new layered directory.
|
|
* @param dstPath The path to the containing directory.
|
|
* @param name The name for the new directory.
|
|
*/
|
|
public void createLayeredDirectory(String srcPath, String dstPath,
|
|
String name)
|
|
{
|
|
if (dstPath.indexOf(srcPath) == 0)
|
|
{
|
|
throw new AVMCycleException("Cycle would be created.");
|
|
}
|
|
fLookupCount.set(1);
|
|
String[] pathParts = SplitPath(dstPath);
|
|
AVMStore rep = getAVMStoreByName(pathParts[0]);
|
|
// fSession.get().lock(rep, LockMode.UPGRADE);
|
|
rep.createLayeredDirectory(srcPath, pathParts[1], name);
|
|
}
|
|
|
|
/**
|
|
* Create a new layered file.
|
|
* @param srcPath The target indirection for the new layered file.
|
|
* @param dstPath The path to the containing directory.
|
|
* @param name The name of the new layered file.
|
|
*/
|
|
public void createLayeredFile(String srcPath, String dstPath, String name)
|
|
{
|
|
fLookupCount.set(1);
|
|
String[] pathParts = SplitPath(dstPath);
|
|
AVMStore rep = getAVMStoreByName(pathParts[0]);
|
|
rep.createLayeredFile(srcPath, pathParts[1], name);
|
|
}
|
|
|
|
/**
|
|
* Create a new AVMStore.
|
|
* @param name The name to give the new AVMStore.
|
|
*/
|
|
public void createAVMStore(String name)
|
|
{
|
|
try
|
|
{
|
|
getAVMStoreByName(name);
|
|
throw new AVMExistsException("AVMStore exists: " + name);
|
|
}
|
|
catch (AVMNotFoundException anf)
|
|
{
|
|
// Do nothing.
|
|
}
|
|
// Newing up the object causes it to be written to the db.
|
|
@SuppressWarnings("unused")
|
|
AVMStore rep = new AVMStoreImpl(this, name);
|
|
// Special handling for AVMStore creation.
|
|
NewInAVMStore newInRep = AVMContext.fgInstance.fNewInAVMStoreDAO.getByNode(rep.getRoot());
|
|
AVMContext.fgInstance.fNewInAVMStoreDAO.delete(newInRep);
|
|
}
|
|
|
|
/**
|
|
* Create a new branch.
|
|
* @param version The version to branch off.
|
|
* @param srcPath The path to make a branch from.
|
|
* @param dstPath The containing directory.
|
|
* @param name The name of the new branch.
|
|
*/
|
|
public void createBranch(int version, String srcPath, String dstPath, String name)
|
|
{
|
|
if (dstPath.indexOf(srcPath) == 0)
|
|
{
|
|
throw new AVMCycleException("Cycle would be created.");
|
|
}
|
|
// Lookup the src node.
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(srcPath);
|
|
AVMStore srcRepo = getAVMStoreByName(pathParts[0]);
|
|
Lookup sPath = srcRepo.lookup(version, pathParts[1], false);
|
|
// Lookup the destination directory.
|
|
fLookupCount.set(1);
|
|
pathParts = SplitPath(dstPath);
|
|
AVMStore dstRepo = getAVMStoreByName(pathParts[0]);
|
|
Lookup dPath = dstRepo.lookupDirectory(-1, pathParts[1], true);
|
|
DirectoryNode dirNode = (DirectoryNode)dPath.getCurrentNode();
|
|
AVMNode srcNode = sPath.getCurrentNode();
|
|
AVMNode dstNode = null;
|
|
// We do different things depending on what kind of thing we're
|
|
// branching from. I'd be considerably happier if we disallowed
|
|
// certain scenarios, but Jon won't let me :P (bhp).
|
|
if (srcNode.getType() == AVMNodeType.PLAIN_DIRECTORY)
|
|
{
|
|
dstNode = new PlainDirectoryNodeImpl((PlainDirectoryNode)srcNode, dstRepo);
|
|
}
|
|
else if (srcNode.getType() == AVMNodeType.LAYERED_DIRECTORY)
|
|
{
|
|
dstNode =
|
|
new LayeredDirectoryNodeImpl((LayeredDirectoryNode)srcNode, dstRepo);
|
|
((LayeredDirectoryNode)dstNode).setLayerID(issueLayerID());
|
|
}
|
|
else if (srcNode.getType() == AVMNodeType.LAYERED_FILE)
|
|
{
|
|
dstNode = new LayeredFileNodeImpl((LayeredFileNode)srcNode, dstRepo);
|
|
}
|
|
else // This is a plain file.
|
|
{
|
|
dstNode = new PlainFileNodeImpl((PlainFileNode)srcNode, dstRepo);
|
|
}
|
|
dstNode.setVersionID(dstRepo.getNextVersionID());
|
|
dstNode.setAncestor(srcNode);
|
|
dirNode.putChild(name, dstNode);
|
|
dirNode.updateModTime();
|
|
}
|
|
|
|
/**
|
|
* Get an output stream to a file.
|
|
* @param path The full path to the file.
|
|
* @return An OutputStream.
|
|
*/
|
|
public OutputStream getOutputStream(String path)
|
|
{
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore rep = getAVMStoreByName(pathParts[0]);
|
|
return rep.getOutputStream(pathParts[1]);
|
|
}
|
|
|
|
/**
|
|
* Get a random access file from a file node.
|
|
* @param version The version id (read-only if not -1)
|
|
* @param path The path to the file.
|
|
* @param access The access mode for RandomAccessFile.
|
|
* @return A RandomAccessFile.
|
|
*/
|
|
public RandomAccessFile getRandomAccess(int version, String path, String access)
|
|
{
|
|
fLookupCount.set(1);
|
|
String[] pathParts = SplitPath(path);
|
|
AVMStore rep = getAVMStoreByName(pathParts[0]);
|
|
return rep.getRandomAccess(version, pathParts[1], access);
|
|
}
|
|
|
|
/**
|
|
* Rename a node.
|
|
* @param srcPath Source containing directory.
|
|
* @param srcName Source name.
|
|
* @param dstPath Destination containing directory.
|
|
* @param dstName Destination name.
|
|
*/
|
|
public void rename(String srcPath, String srcName, String dstPath,
|
|
String dstName)
|
|
{
|
|
// This is about as ugly as it gets.
|
|
if (dstPath.indexOf(srcPath + srcName) == 0)
|
|
{
|
|
throw new AVMCycleException("Cyclic rename.");
|
|
}
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(srcPath);
|
|
AVMStore srcRepo = getAVMStoreByName(pathParts[0]);
|
|
Lookup sPath = srcRepo.lookupDirectory(-1, pathParts[1], true);
|
|
DirectoryNode srcDir = (DirectoryNode)sPath.getCurrentNode();
|
|
AVMNode srcNode = srcDir.lookupChild(sPath, srcName, -1, true);
|
|
if (srcNode == null)
|
|
{
|
|
throw new AVMNotFoundException("Not found: " + srcName);
|
|
}
|
|
fLookupCount.set(1);
|
|
pathParts = SplitPath(dstPath);
|
|
AVMStore dstRepo = getAVMStoreByName(pathParts[0]);
|
|
Lookup dPath = dstRepo.lookupDirectory(-1, pathParts[1], true);
|
|
DirectoryNode dstDir = (DirectoryNode)dPath.getCurrentNode();
|
|
AVMNode dstNode = dstDir.lookupChild(dPath, dstName, -1, true);
|
|
if (dstNode != null)
|
|
{
|
|
throw new AVMExistsException("Node exists: " + dstName);
|
|
}
|
|
// We've passed the check, so we can go ahead and do the rename.
|
|
if (srcNode.getType() == AVMNodeType.PLAIN_DIRECTORY)
|
|
{
|
|
// If the source is layered then the renamed thing needs to be layered also.
|
|
if (sPath.isLayered())
|
|
{
|
|
// If this is a rename happening in the same layer we make a new
|
|
// OverlayedDirectoryNode that is not a primary indirection layer.
|
|
// Otherwise we do make the new OverlayedDirectoryNode a primary
|
|
// Indirection layer. This complexity begs the question of whether
|
|
// we should allow renames from within one layer to within another
|
|
// layer. Allowing it makes the logic absurdly complex.
|
|
if (dPath.isLayered() && dPath.getTopLayer().equals(sPath.getTopLayer()))
|
|
{
|
|
dstNode = new LayeredDirectoryNodeImpl((PlainDirectoryNode)srcNode, dstRepo, sPath, false);
|
|
((LayeredDirectoryNode)dstNode).setLayerID(sPath.getTopLayer().getLayerID());
|
|
}
|
|
else
|
|
{
|
|
dstNode = new LayeredDirectoryNodeImpl((DirectoryNode)srcNode, dstRepo, sPath, srcName);
|
|
((LayeredDirectoryNode)dstNode).setLayerID(issueLayerID());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
dstNode = new PlainDirectoryNodeImpl((PlainDirectoryNode)srcNode, dstRepo);
|
|
}
|
|
}
|
|
else if (srcNode.getType() == AVMNodeType.LAYERED_DIRECTORY)
|
|
{
|
|
// TODO I think I need to subdivide this logic again.
|
|
// based on whether the destination is a layer or not.
|
|
if (!sPath.isLayered() || (sPath.isInThisLayer() &&
|
|
srcDir.getType() == AVMNodeType.LAYERED_DIRECTORY &&
|
|
((LayeredDirectoryNode)srcDir).directlyContains(srcNode)))
|
|
{
|
|
// Use the simple 'copy' constructor.
|
|
dstNode =
|
|
new LayeredDirectoryNodeImpl((LayeredDirectoryNode)srcNode, dstRepo);
|
|
((LayeredDirectoryNode)dstNode).setLayerID(((LayeredDirectoryNode)srcNode).getLayerID());
|
|
}
|
|
else
|
|
{
|
|
// If the source node is a primary indirection, then the 'copy' constructor
|
|
// is used. Otherwise the alternate constructor is called and its
|
|
// indirection is calculated from it's source context.
|
|
if (((LayeredDirectoryNode)srcNode).getPrimaryIndirection())
|
|
{
|
|
dstNode =
|
|
new LayeredDirectoryNodeImpl((LayeredDirectoryNode)srcNode, dstRepo);
|
|
}
|
|
else
|
|
{
|
|
dstNode =
|
|
new LayeredDirectoryNodeImpl((DirectoryNode)srcNode, dstRepo, sPath, srcName);
|
|
}
|
|
// What needs to be done here is dependent on whether the
|
|
// rename is to a layered context. If so then it should get the layer id
|
|
// of its destination parent. Otherwise it should get a new layer
|
|
// id.
|
|
if (dPath.isLayered())
|
|
{
|
|
((LayeredDirectoryNode)dstNode).setLayerID(dPath.getTopLayer().getLayerID());
|
|
}
|
|
else
|
|
{
|
|
((LayeredDirectoryNode)dstNode).setLayerID(issueLayerID());
|
|
}
|
|
}
|
|
}
|
|
else if (srcNode.getType() == AVMNodeType.LAYERED_FILE)
|
|
{
|
|
dstNode = new LayeredFileNodeImpl((LayeredFileNode)srcNode, dstRepo);
|
|
}
|
|
else // This is a plain file node.
|
|
{
|
|
dstNode = new PlainFileNodeImpl((PlainFileNode)srcNode, dstRepo);
|
|
}
|
|
srcDir.removeChild(srcName);
|
|
srcDir.updateModTime();
|
|
dstNode.setVersionID(dstRepo.getNextVersionID());
|
|
dstDir.putChild(dstName, dstNode);
|
|
dstDir.updateModTime();
|
|
dstNode.setAncestor(srcNode);
|
|
}
|
|
|
|
/**
|
|
* Uncover a deleted name in a layered directory.
|
|
* @param dirPath The path to the layered directory.
|
|
* @param name The name to uncover.
|
|
*/
|
|
public void uncover(String dirPath, String name)
|
|
{
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(dirPath);
|
|
AVMStore repo = getAVMStoreByName(pathParts[0]);
|
|
repo.uncover(pathParts[1], name);
|
|
}
|
|
|
|
/**
|
|
* Snapshot the given repositories.
|
|
* @param repositories The list of AVMStore name to snapshot.
|
|
* @return A List of version ids for each newly snapshotted AVMStore.
|
|
*/
|
|
public List<Integer> createSnapshot(List<String> repositories)
|
|
{
|
|
List<Integer> result = new ArrayList<Integer>();
|
|
for (String repName : repositories)
|
|
{
|
|
AVMStore repo = getAVMStoreByName(repName);
|
|
result.add(repo.createSnapshot());
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Create a snapshot of a single AVMStore.
|
|
* @param store The name of the repository.
|
|
* @return The version id of the newly snapshotted repository.
|
|
*/
|
|
public int createSnapshot(String storeName)
|
|
{
|
|
AVMStore store = getAVMStoreByName(storeName);
|
|
return store.createSnapshot();
|
|
}
|
|
|
|
/**
|
|
* Remove a node and everything underneath it.
|
|
* @param path The path to the containing directory.
|
|
* @param name The name of the node to remove.
|
|
*/
|
|
public void remove(String path, String name)
|
|
{
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
store.removeNode(pathParts[1], name);
|
|
}
|
|
|
|
/**
|
|
* Get rid of all content that lives only in the given AVMStore.
|
|
* Also removes the AVMStore.
|
|
* @param name The name of the AVMStore to purge.
|
|
*/
|
|
@SuppressWarnings("unchecked")
|
|
public void purgeAVMStore(String name)
|
|
{
|
|
AVMStore store = getAVMStoreByName(name);
|
|
AVMNode root = store.getRoot();
|
|
root.setIsRoot(false);
|
|
VersionRootDAO vrDAO = AVMContext.fgInstance.fVersionRootDAO;
|
|
List<VersionRoot> vRoots = vrDAO.getAllInAVMStore(store);
|
|
for (VersionRoot vr : vRoots)
|
|
{
|
|
AVMNode node = vr.getRoot();
|
|
node.setIsRoot(false);
|
|
vrDAO.delete(vr);
|
|
}
|
|
List<NewInAVMStore> newGuys = AVMContext.fgInstance.fNewInAVMStoreDAO.getByAVMStore(store);
|
|
for (NewInAVMStore newGuy : newGuys)
|
|
{
|
|
AVMContext.fgInstance.fNewInAVMStoreDAO.delete(newGuy);
|
|
}
|
|
AVMContext.fgInstance.fAVMStorePropertyDAO.delete(store);
|
|
AVMContext.fgInstance.fAVMStoreDAO.delete(store);
|
|
}
|
|
|
|
/**
|
|
* Remove all content specific to a AVMRepository and version.
|
|
* @param name The name of the AVMStore.
|
|
* @param version The version to purge.
|
|
*/
|
|
public void purgeVersion(String name, int version)
|
|
{
|
|
AVMStore store = getAVMStoreByName(name);
|
|
store.purgeVersion(version);
|
|
}
|
|
|
|
/**
|
|
* Get an input stream from a file.
|
|
* @param version The version to look under.
|
|
* @param path The path to the file.
|
|
* @return An InputStream.
|
|
*/
|
|
public InputStream getInputStream(int version, String path)
|
|
{
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
return store.getInputStream(version, pathParts[1]);
|
|
}
|
|
|
|
/**
|
|
* Get an InputStream from a given version of a file.
|
|
* @param desc The node descriptor.
|
|
* @return The InputStream.
|
|
*/
|
|
public InputStream getInputStream(AVMNodeDescriptor desc)
|
|
{
|
|
fLookupCount.set(1);
|
|
AVMNode node = AVMContext.fgInstance.fAVMNodeDAO.getByID(desc.getId());
|
|
if (node == null)
|
|
{
|
|
throw new AVMNotFoundException("Not found.");
|
|
}
|
|
if (node.getType() != AVMNodeType.PLAIN_FILE &&
|
|
node.getType() != AVMNodeType.LAYERED_FILE)
|
|
{
|
|
throw new AVMWrongTypeException("Not a file.");
|
|
}
|
|
FileNode file = (FileNode)node;
|
|
return file.getContentForRead().getInputStream();
|
|
}
|
|
|
|
/**
|
|
* Get a listing of a directory.
|
|
* @param version The version to look under.
|
|
* @param path The path to the directory.
|
|
* @return A List of FolderEntries.
|
|
*/
|
|
public SortedMap<String, AVMNodeDescriptor> getListing(int version, String path)
|
|
{
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
return store.getListing(version, pathParts[1]);
|
|
}
|
|
|
|
/**
|
|
* Get a directory listing from a directory node descriptor.
|
|
* @param dir The directory node descriptor.
|
|
* @return A SortedMap listing.
|
|
*/
|
|
public SortedMap<String, AVMNodeDescriptor> getListing(AVMNodeDescriptor dir)
|
|
{
|
|
fLookupCount.set(1);
|
|
AVMNode node = AVMContext.fgInstance.fAVMNodeDAO.getByID(dir.getId());
|
|
if (node.getType() != AVMNodeType.LAYERED_DIRECTORY &&
|
|
node.getType() != AVMNodeType.PLAIN_DIRECTORY)
|
|
{
|
|
throw new AVMWrongTypeException("Not a directory.");
|
|
}
|
|
DirectoryNode dirNode = (DirectoryNode)node;
|
|
return dirNode.getListing(dir);
|
|
}
|
|
|
|
/**
|
|
* Get descriptors of all AVMStores.
|
|
* @return A list of all descriptors.
|
|
*/
|
|
@SuppressWarnings("unchecked")
|
|
public List<AVMStoreDescriptor> getAVMStores()
|
|
{
|
|
List<AVMStore> l = AVMContext.fgInstance.fAVMStoreDAO.getAll();
|
|
List<AVMStoreDescriptor> result = new ArrayList<AVMStoreDescriptor>();
|
|
for (AVMStore store : l)
|
|
{
|
|
result.add(store.getDescriptor());
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Get a descriptor for an AVMStore.
|
|
* @param name The name to get.
|
|
* @return The descriptor.
|
|
*/
|
|
public AVMStoreDescriptor getAVMStore(String name)
|
|
{
|
|
AVMStore store = getAVMStoreByName(name);
|
|
return store.getDescriptor();
|
|
}
|
|
|
|
/**
|
|
* Get all version for a given AVMStore.
|
|
* @param name The name of the AVMStore.
|
|
* @return A Set will all the version ids.
|
|
*/
|
|
public List<VersionDescriptor> getAVMStoreVersions(String name)
|
|
{
|
|
AVMStore store = getAVMStoreByName(name);
|
|
return store.getVersions();
|
|
}
|
|
|
|
/**
|
|
* Get the set of versions between (inclusive) of the given dates.
|
|
* From or to may be null but not both.
|
|
* @param name The name of the AVMRepository.
|
|
* @param from The earliest date.
|
|
* @param to The latest date.
|
|
* @return The Set of version IDs.
|
|
*/
|
|
public List<VersionDescriptor> getAVMStoreVersions(String name, Date from, Date to)
|
|
{
|
|
AVMStore store = getAVMStoreByName(name);
|
|
return store.getVersions(from, to);
|
|
}
|
|
|
|
/**
|
|
* Issue a node id.
|
|
* @return The new id.
|
|
*/
|
|
public long issueID()
|
|
{
|
|
return fNodeIssuer.issue();
|
|
}
|
|
|
|
/**
|
|
* Issue a content id.
|
|
* @return The new id.
|
|
*/
|
|
public long issueContentID()
|
|
{
|
|
return fContentIssuer.issue();
|
|
}
|
|
|
|
/**
|
|
* Issue a new layer id.
|
|
* @return The new id.
|
|
*/
|
|
public long issueLayerID()
|
|
{
|
|
return fLayerIssuer.issue();
|
|
}
|
|
|
|
/**
|
|
* Get the indirection path for a layered node.
|
|
* @param version The version to look under.
|
|
* @param path The path to the node.
|
|
* @return The indirection path.
|
|
*/
|
|
public String getIndirectionPath(int version, String path)
|
|
{
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
return store.getIndirectionPath(version, pathParts[1]);
|
|
}
|
|
|
|
/**
|
|
* Get the next version id for the given AVMStore.
|
|
* @param name The name of the AVMStore.
|
|
* @return The next version id.
|
|
*/
|
|
public int getLatestVersionID(String name)
|
|
{
|
|
AVMStore store = getAVMStoreByName(name);
|
|
return store.getNextVersionID();
|
|
}
|
|
|
|
/**
|
|
* Get an AVMStore by name.
|
|
* @param name The name of the AVMStore.
|
|
* @return The AVMStore.
|
|
*/
|
|
private AVMStore getAVMStoreByName(String name)
|
|
{
|
|
AVMStore store = AVMContext.fgInstance.fAVMStoreDAO.getByName(name);
|
|
if (store == null)
|
|
{
|
|
throw new AVMNotFoundException("AVMStore not found: " + name);
|
|
}
|
|
return store;
|
|
}
|
|
|
|
/**
|
|
* Get a descriptor for an AVMStore root.
|
|
* @param version The version to get.
|
|
* @param name The name of the AVMStore.
|
|
* @return The descriptor for the root.
|
|
*/
|
|
public AVMNodeDescriptor getAVMStoreRoot(int version, String name)
|
|
{
|
|
AVMStore store = getAVMStoreByName(name);
|
|
if (store == null)
|
|
{
|
|
throw new AVMNotFoundException("Not found: " + name);
|
|
}
|
|
return store.getRoot(version);
|
|
}
|
|
|
|
// TODO Fix this awful mess regarding cycle detection.
|
|
/**
|
|
* Lookup a node.
|
|
* @param version The version to look under.
|
|
* @param path The path to lookup.
|
|
* @return A lookup object.
|
|
*/
|
|
public Lookup lookup(int version, String path)
|
|
{
|
|
Integer count = fLookupCount.get();
|
|
if (count == null)
|
|
{
|
|
fLookupCount.set(1);
|
|
}
|
|
else
|
|
{
|
|
fLookupCount.set(count + 1);
|
|
}
|
|
if (fLookupCount.get() > 50)
|
|
{
|
|
throw new AVMCycleException("Cycle in lookup.");
|
|
}
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
Lookup result = store.lookup(version, pathParts[1], false);
|
|
if (count == null)
|
|
{
|
|
fLookupCount.set(null);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Lookup a descriptor from a directory descriptor.
|
|
* @param dir The directory descriptor.
|
|
* @param name The name of the child to lookup.
|
|
* @return The child's descriptor.
|
|
*/
|
|
public AVMNodeDescriptor lookup(AVMNodeDescriptor dir, String name)
|
|
{
|
|
fLookupCount.set(0);
|
|
AVMNode node = AVMContext.fgInstance.fAVMNodeDAO.getByID(dir.getId());
|
|
if (node == null)
|
|
{
|
|
throw new AVMNotFoundException("Not found: " + dir.getId());
|
|
}
|
|
if (node.getType() != AVMNodeType.LAYERED_DIRECTORY &&
|
|
node.getType() != AVMNodeType.PLAIN_DIRECTORY)
|
|
{
|
|
throw new AVMWrongTypeException("Not a directory.");
|
|
}
|
|
DirectoryNode dirNode = (DirectoryNode)node;
|
|
return dirNode.lookupChild(dir, name);
|
|
}
|
|
|
|
/**
|
|
* Get information about layering of a path.
|
|
* @param version The version to look under.
|
|
* @param path The full avm path.
|
|
* @return A LayeringDescriptor.
|
|
*/
|
|
public LayeringDescriptor getLayeringInfo(int version, String path)
|
|
{
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
Lookup lookup = store.lookup(version, pathParts[1], false);
|
|
return new LayeringDescriptor(!lookup.getDirectlyContained(),
|
|
lookup.getAVMStore().getDescriptor(),
|
|
lookup.getFinalStore().getDescriptor());
|
|
}
|
|
|
|
/**
|
|
* Lookup a directory specifically.
|
|
* @param version The version to look under.
|
|
* @param path The path to lookup.
|
|
* @return A lookup object.
|
|
*/
|
|
public Lookup lookupDirectory(int version, String path)
|
|
{
|
|
fLookupCount.set(fLookupCount.get() + 1);
|
|
if (fLookupCount.get() > 50)
|
|
{
|
|
throw new AVMCycleException("Cycle in lookup.");
|
|
}
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
return store.lookupDirectory(version, pathParts[1], false);
|
|
}
|
|
|
|
/**
|
|
* Utility to split a path, foo:bar/baz into its repository and path parts.
|
|
* @param path The fully qualified path.
|
|
* @return The repository name and the repository path.
|
|
*/
|
|
private String[] SplitPath(String path)
|
|
{
|
|
String [] pathParts = path.split(":");
|
|
if (pathParts.length != 2)
|
|
{
|
|
throw new AVMException("Invalid path: " + path);
|
|
}
|
|
return pathParts;
|
|
}
|
|
|
|
/**
|
|
* Get the path to file storage.
|
|
* @return The root path of file storage.
|
|
*/
|
|
public String getStorageRoot()
|
|
{
|
|
return fStorage;
|
|
}
|
|
|
|
/**
|
|
* Make a directory into a primary indirection.
|
|
* @param path The full path.
|
|
*/
|
|
public void makePrimary(String path)
|
|
{
|
|
fLookupCount.set(1);
|
|
String[] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
store.makePrimary(pathParts[1]);
|
|
}
|
|
|
|
/**
|
|
* Change what a layered directory points at.
|
|
* @param path The full path to the layered directory.
|
|
* @param target The new target path.
|
|
*/
|
|
public void retargetLayeredDirectory(String path, String target)
|
|
{
|
|
fLookupCount.set(1);
|
|
String[] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
store.retargetLayeredDirectory(pathParts[1], target);
|
|
}
|
|
|
|
/**
|
|
* Get the history chain for a node.
|
|
* @param desc The node to get history of.
|
|
* @param count The maximum number of ancestors to traverse. Negative means all.
|
|
* @return A List of ancestors.
|
|
*/
|
|
public List<AVMNodeDescriptor> getHistory(AVMNodeDescriptor desc, int count)
|
|
{
|
|
AVMNode node = AVMContext.fgInstance.fAVMNodeDAO.getByID(desc.getId());
|
|
if (node == null)
|
|
{
|
|
throw new AVMNotFoundException("Not found.");
|
|
}
|
|
if (count < 0)
|
|
{
|
|
count = Integer.MAX_VALUE;
|
|
}
|
|
List<AVMNodeDescriptor> history = new ArrayList<AVMNodeDescriptor>();
|
|
for (int i = 0; i < count; i++)
|
|
{
|
|
node = node.getAncestor();
|
|
if (node == null)
|
|
{
|
|
break;
|
|
}
|
|
history.add(node.getDescriptor("UNKNOWN", "UNKNOWN", "UNKNOWN"));
|
|
}
|
|
return history;
|
|
}
|
|
|
|
/**
|
|
* Set the opacity of a layered directory. An opaque directory hides
|
|
* the things it points to via indirection.
|
|
* @param path The path to the layered directory.
|
|
* @param opacity True is opaque; false is not.
|
|
*/
|
|
public void setOpacity(String path, boolean opacity)
|
|
{
|
|
fLookupCount.set(1);
|
|
String[] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
store.setOpacity(pathParts[1], opacity);
|
|
}
|
|
|
|
/**
|
|
* Set a property on a node.
|
|
* @param path The path to the node.
|
|
* @param name The name of the property.
|
|
* @param value The value of the property.
|
|
*/
|
|
public void setNodeProperty(String path, QName name, PropertyValue value)
|
|
{
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
store.setNodeProperty(pathParts[1], name, value);
|
|
}
|
|
|
|
/**
|
|
* Set a collection of properties at once.
|
|
* @param path The path to the node.
|
|
* @param properties The Map of QNames to PropertyValues.
|
|
*/
|
|
public void setNodeProperties(String path, Map<QName, PropertyValue> properties)
|
|
{
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
store.setNodeProperties(pathParts[1], properties);
|
|
}
|
|
|
|
/**
|
|
* Get a property by name for a node.
|
|
* @param version The version to look under.
|
|
* @param path The path to the node.
|
|
* @param name The name of the property.
|
|
* @return The PropertyValue or null if it does not exist.
|
|
*/
|
|
public PropertyValue getNodeProperty(int version, String path, QName name)
|
|
{
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
return store.getNodeProperty(version, pathParts[1], name);
|
|
}
|
|
|
|
/**
|
|
* Get a Map of all the properties of a node.
|
|
* @param version The version to look under.
|
|
* @param path The path to the node.
|
|
* @return A Map of QNames to PropertyValues.
|
|
*/
|
|
public Map<QName, PropertyValue> getNodeProperties(int version, String path)
|
|
{
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
return store.getNodeProperties(version, pathParts[1]);
|
|
}
|
|
|
|
/**
|
|
* Delete a single property from a node.
|
|
* @param path The path to the node.
|
|
* @param name The name of the property.
|
|
*/
|
|
public void deleteNodeProperty(String path, QName name)
|
|
{
|
|
fLookupCount.set(1);
|
|
String [] pathParts = SplitPath(path);
|
|
AVMStore store = getAVMStoreByName(pathParts[0]);
|
|
store.deleteNodeProperty(pathParts[1], name);
|
|
}
|
|
|
|
/**
|
|
* Set a property on a store. Overwrites if property exists.
|
|
* @param store The AVMStore.
|
|
* @param name The QName.
|
|
* @param value The PropertyValue to set.
|
|
*/
|
|
public void setStoreProperty(String store, QName name, PropertyValue value)
|
|
{
|
|
getAVMStoreByName(store).setProperty(name, value);
|
|
}
|
|
|
|
/**
|
|
* Set a group of properties on a store. Overwrites any properties that exist.
|
|
* @param store The AVMStore.
|
|
* @param props The properties to set.
|
|
*/
|
|
public void setStoreProperties(String store, Map<QName, PropertyValue> props)
|
|
{
|
|
getAVMStoreByName(store).setProperties(props);
|
|
}
|
|
|
|
/**
|
|
* Get a property from a store.
|
|
* @param store The name of the store.
|
|
* @param name The property
|
|
* @return The property value or null if non-existent.
|
|
*/
|
|
public PropertyValue getStoreProperty(String store, QName name)
|
|
{
|
|
return getAVMStoreByName(store).getProperty(name);
|
|
}
|
|
|
|
/**
|
|
* Get all the properties for a store.
|
|
* @param store The name of the Store.
|
|
* @return A Map of all the properties.
|
|
*/
|
|
public Map<QName, PropertyValue> getStoreProperties(String store)
|
|
{
|
|
return getAVMStoreByName(store).getProperties();
|
|
}
|
|
|
|
/**
|
|
* Delete a property from a store.
|
|
* @param store The name of the store.
|
|
* @param name The name of the property.
|
|
*/
|
|
public void deleteStoreProperty(String store, QName name)
|
|
{
|
|
getAVMStoreByName(store).deleteProperty(name);
|
|
}
|
|
|
|
/**
|
|
* Get the AVMStoreDescriptor for an AVMStore.
|
|
* @param name The name of the AVMStore.
|
|
* @return The descriptor.
|
|
*/
|
|
public AVMStoreDescriptor getAVMStoreDescriptor(String name)
|
|
{
|
|
return getAVMStoreByName(name).getDescriptor();
|
|
}
|
|
|
|
/**
|
|
* Get the common ancestor of two nodes if one exists. Unfortunately
|
|
* this is a quadratic problem, taking time proportional to the product
|
|
* of the lengths of the left and right history chains.
|
|
* @param left The first node.
|
|
* @param right The second node.
|
|
* @return The common ancestor. There are four possible results. Null means
|
|
* that there is no common ancestor. Left returned means that left is strictly
|
|
* an ancestor of right. Right returned means that right is strictly an
|
|
* ancestor of left. Any other non null return is the common ancestor and
|
|
* indicates that left and right are in conflict.
|
|
*/
|
|
public AVMNodeDescriptor getCommonAncestor(AVMNodeDescriptor left,
|
|
AVMNodeDescriptor right)
|
|
{
|
|
AVMNode lNode = AVMContext.fgInstance.fAVMNodeDAO.getByID(left.getId());
|
|
AVMNode rNode = AVMContext.fgInstance.fAVMNodeDAO.getByID(right.getId());
|
|
if (lNode == null || rNode == null)
|
|
{
|
|
throw new AVMNotFoundException("Node not found.");
|
|
}
|
|
List<AVMNode> leftHistory = new ArrayList<AVMNode>();
|
|
while (lNode != null)
|
|
{
|
|
leftHistory.add(lNode);
|
|
lNode = lNode.getAncestor();
|
|
}
|
|
List<AVMNode> rightHistory = new ArrayList<AVMNode>();
|
|
while (rNode != null)
|
|
{
|
|
rightHistory.add(rNode);
|
|
rNode = rNode.getAncestor();
|
|
}
|
|
for (AVMNode l : leftHistory)
|
|
{
|
|
for (AVMNode r : rightHistory)
|
|
{
|
|
if (l.equals(r))
|
|
{
|
|
return l.getDescriptor("", "", "");
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Get the single instance of AVMRepository.
|
|
* @return The single instance.
|
|
*/
|
|
public static AVMRepository GetInstance()
|
|
{
|
|
return fgInstance;
|
|
}
|
|
}
|