/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.directory.server.core;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import org.apache.directory.shared.ldap.model.constants.AuthenticationLevel;
import org.apache.directory.shared.ldap.model.exception.LdapInvalidDnException;
import org.apache.directory.shared.ldap.model.name.Dn;
import org.apache.directory.shared.ldap.model.schema.SchemaManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A helper class which serialize and deserialize a LdapPrincipal.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public final class LdapPrincipalSerializer
{
/** The LoggerFactory used by this class */
protected static final Logger LOG = LoggerFactory.getLogger( LdapPrincipalSerializer.class );
/**
* Private constructor.
*/
private LdapPrincipalSerializer()
{
}
/**
* Serializes a LdapPrincipal instance.
*
* @param principal The LdapPrincipal instance to serialize
* @param out The stream into which we will write the serialized instance
* @throws IOException If the stream can't be written
*/
public static void serialize( LdapPrincipal principal, ObjectOutput out ) throws IOException
{
// The Authentication level
out.writeInt( principal.getAuthenticationLevel().getLevel() );
// The principal's DN
if ( principal.getDn() == null )
{
Dn.EMPTY_DN.writeExternal( out );
}
else
{
principal.getDn().writeExternal( out );
}
}
/**
* Deserializes a LdapPrincipal instance.
*
* @param schemaManager The SchemaManager (can be null)
* @param in The input stream from which the LdapPrincipal is read
* @return a deserialized LdapPrincipal
* @throws IOException If the stream can't be read
*/
public static LdapPrincipal deserialize( SchemaManager schemaManager, ObjectInput in )
throws IOException, LdapInvalidDnException
{
// Read the authenyication level
AuthenticationLevel authenticationLevel = AuthenticationLevel.getLevel( in.readInt() );
// Read the principal's DN
Dn dn = new Dn( schemaManager );
try
{
dn.readExternal( in );
}
catch ( ClassNotFoundException cnfe )
{
IOException ioe = new IOException( cnfe.getMessage() );
ioe.initCause( cnfe );
throw ioe;
}
LdapPrincipal principal = new LdapPrincipal( schemaManager, dn, authenticationLevel );
return principal;
}
}