/*
* 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.shared.ldap.model.schema.syntaxCheckers;
import java.text.ParseException;
import org.apache.directory.shared.ldap.model.constants.SchemaConstants;
import org.apache.directory.shared.ldap.model.schema.SchemaManager;
import org.apache.directory.shared.ldap.model.schema.SyntaxChecker;
import org.apache.directory.shared.ldap.model.subtree.SubtreeSpecificationChecker;
import org.apache.directory.shared.util.Strings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A SyntaxChecker which verifies that a value is a subtree specification.
*
* It has been removed in RFC 4517
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
@SuppressWarnings("serial")
public class SubtreeSpecificationSyntaxChecker extends SyntaxChecker
{
/** A logger for this class */
private static final Logger LOG = LoggerFactory.getLogger( SubtreeSpecificationSyntaxChecker.class );
/** The associated checker */
private SubtreeSpecificationChecker subtreeSpecificationChecker;
/**
* Creates an instance of SubtreeSpecificationSyntaxChecker
*/
public SubtreeSpecificationSyntaxChecker()
{
super( SchemaConstants.SUBTREE_SPECIFICATION_SYNTAX );
}
/**
* {@inheritDoc}
*/
public boolean isValidSyntax( Object value )
{
String strValue = null;
if ( value == null )
{
LOG.debug( "Syntax invalid for 'null'" );
return false;
}
if ( value instanceof String )
{
strValue = ( String ) value;
}
else if ( value instanceof byte[] )
{
strValue = Strings.utf8ToString( ( byte[] ) value );
}
else
{
strValue = value.toString();
}
if ( strValue.length() == 0 )
{
LOG.debug( "Syntax invalid for '{}'", value );
return false;
}
try
{
synchronized ( subtreeSpecificationChecker )
{
subtreeSpecificationChecker.parse( strValue );
}
LOG.debug( "Syntax valid for '{}'", value );
return true;
}
catch ( ParseException pe )
{
LOG.debug( "Syntax invalid for '{}'", value );
return false;
}
}
/**
* {@inheritDoc}
*/
public void setSchemaManager( SchemaManager schemaManager )
{
subtreeSpecificationChecker = new SubtreeSpecificationChecker( schemaManager );
}
}