/*
* Copyright 2000-2001,2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.apache.jetspeed.om.registry.base;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import org.apache.jetspeed.om.registry.RegistryEntry;
import org.apache.jetspeed.om.registry.InvalidEntryException;
import org.apache.jetspeed.om.registry.RegistryException;
import org.apache.jetspeed.om.registry.SecurityEntry;
import org.apache.jetspeed.services.Registry;
import org.apache.jetspeed.services.logging.JetspeedLogFactoryService;
import org.apache.jetspeed.services.logging.JetspeedLogger;
/**
* Extends BaseRegistry implementation to override object creation
* method and ensure Registry object is synchronized with its
* persistence backend by delegating actual addition/deletion of objects
* to the registry service.
* <p>To avoid loops, a RegistryService implementation using this class
* nees to call the addLocalEntry/removeLocalEntry methods to modify
* the in memory state of this Registry</p>
*
* @author <a href="mailto:raphael@apache.org">Rapha謖 Luta</a>
* @version $Id: BaseSecurityRegistry.java,v 1.6 2004/02/23 03:08:26 jford Exp $
*/
public class BaseSecurityRegistry extends BaseRegistry
{
/**
* Static initialization of the logger for this class
*/
private static final JetspeedLogger logger = JetspeedLogFactoryService.getLogger(BaseSecurityRegistry.class.getName());
/**
@see Registry#setEntry
*/
public void setEntry( RegistryEntry entry ) throws InvalidEntryException
{
// Delegate to the RegistryService to ensure correct handling of
// persistence if using file fragments
try
{
Registry.addEntry(Registry.SECURITY, entry);
}
catch (RegistryException e)
{
logger.error("Exception", e);
}
}
/**
@see Registry#addEntry
*/
public void addEntry( RegistryEntry entry ) throws InvalidEntryException
{
// Delegate to the RegistryService to ensure correct handling of
// persistence if using file fragments
try
{
Registry.addEntry(Registry.SECURITY, entry);
}
catch (RegistryException e)
{
logger.error("Exception", e);
}
}
/**
@see Registry#removeEntry
*/
public void removeEntry( String name )
{
// Delegate to the RegistryService to ensure correct handling of
// persistence if using file fragments
Registry.removeEntry(Registry.SECURITY, name);
}
/**
@see Registry#removeEntry
*/
public void removeEntry( RegistryEntry entry )
{
// Delegate to the RegistryService to ensure correct handling of
// persistence if using file fragments
if (entry != null)
{
Registry.removeEntry(Registry.SECURITY, entry.getName());
}
}
/**
* Creates a new RegistryEntry instance compatible with the current
* Registry instance implementation
*
* @return the newly created RegistryEntry
*/
public RegistryEntry createEntry()
{
return new BaseSecurityEntry();
}
/**
* returns a security entry from the registry based on the name provided
* @param String name Name of security entry we want.
* @return SecurityEntry SecurityEntry matching the <code>name</code>
* argument or null if no such entry exists.
*/
public SecurityEntry getSecurityEntry(String name)
{
try
{
return (SecurityEntry) this.getEntry(name);
}
catch (InvalidEntryException e)
{
logger.error("Exception", e);
}
return null;
}
/**
* @return SecurityEntry a new SecurityEntry instance
*/
public SecurityEntry createSecurityEntry()
{
return (SecurityEntry) this.createEntry();
}
/**
* Makes an exact copy of the named role, but changing the nmae attribute
* to the value of <code>newName</code>
* @param String original Name of the entry we want to clone
* @param String newName Name to give the cloned entry
* @return SecurityEntry The cloned entry.
*/
public SecurityEntry cloneSecurityEntry(String original, String newName)
{
SecurityEntry baseEntry = getSecurityEntry(original);
if (baseEntry != null)
{
SecurityEntry newEntry = cloneEntry(baseEntry);
newEntry.setName(newName);
return newEntry;
}
return null;
}
/**
* Makes an indentical copy of the SecurityEntry provided using
* serialize/de-serialize logic to make a clean reference
* @param SecurityEntry secEntry the entry to clone
* @return SecurityEntry the cloned entry.
*/
private static SecurityEntry cloneEntry(SecurityEntry secEntry)
{
SecurityEntry clonedEntry = null;
try
{
ByteArrayOutputStream bytearrayoutputstream = new ByteArrayOutputStream(100);
ObjectOutputStream objectoutputstream = new ObjectOutputStream(bytearrayoutputstream);
objectoutputstream.writeObject(secEntry);
byte abyte0[] = bytearrayoutputstream.toByteArray();
objectoutputstream.close();
ByteArrayInputStream bytearrayinputstream = new ByteArrayInputStream(abyte0);
ObjectInputStream objectinputstream = new ObjectInputStream(bytearrayinputstream);
clonedEntry = (SecurityEntry) objectinputstream.readObject();
objectinputstream.close();
}
catch (Exception exception)
{
// nothing
}
return clonedEntry;
}
}