2005-12-08 07:13:07 +00:00

120 lines
3.0 KiB
Java

/*
* Copyright (C) 2005 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.filesys.server.filesys;
import java.util.Enumeration;
import java.util.Hashtable;
/**
* Tree Connection Hash Class
* <p>
* Hashtable of TreeConnections for the available disk shared devices. TreeConnections are indexed
* using the hash of the share name to allow mounts to be persistent across server restarts.
*/
public class TreeConnectionHash
{
// Share name hash to tree connection
private Hashtable<Integer, TreeConnection> m_connections;
/**
* Class constructor
*/
public TreeConnectionHash()
{
m_connections = new Hashtable<Integer, TreeConnection>();
}
/**
* Return the number of tree connections in the hash table
*
* @return int
*/
public final int numberOfEntries()
{
return m_connections.size();
}
/**
* Add a connection to the list of available connections
*
* @param tree TreeConnection
*/
public final void addConnection(TreeConnection tree)
{
m_connections.put(tree.getSharedDevice().getName().hashCode(), tree);
}
/**
* Delete a connection from the list
*
* @param shareName String
* @return TreeConnection
*/
public final TreeConnection deleteConnection(String shareName)
{
return (TreeConnection) m_connections.get(shareName.hashCode());
}
/**
* Find a connection for the specified share name
*
* @param shareName String
* @return TreeConnection
*/
public final TreeConnection findConnection(String shareName)
{
// Get the tree connection for the associated share name
TreeConnection tree = m_connections.get(shareName.hashCode());
// Return the tree connection
return tree;
}
/**
* Find a connection for the specified share name hash code
*
* @param hashCode int
* @return TreeConnection
*/
public final TreeConnection findConnection(int hashCode)
{
// Get the tree connection for the associated share name
TreeConnection tree = m_connections.get(hashCode);
// Return the tree connection
return tree;
}
/**
* Enumerate the connections
*
* @return Enumeration<TreeConnection>
*/
public final Enumeration<TreeConnection> enumerateConnections()
{
return m_connections.elements();
}
}