/**
* 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.wss4j.common.derivedKey;
import org.apache.wss4j.common.ext.WSSecurityException;
public final class AlgoFactory {
private AlgoFactory() {
// Complete
}
/**
* This gives a DerivationAlgorithm instance from the default set of algorithms provided
*
* @param algorithm The algorithm identifier
* @return A derivation algorithm
* @throws ConversationException If the specified algorithm is not available
* in default implementations
*/
public static DerivationAlgorithm getInstance(String algorithm) throws WSSecurityException {
if (ConversationConstants.DerivationAlgorithm.P_SHA_1_2005_12.equals(algorithm)
|| ConversationConstants.DerivationAlgorithm.P_SHA_1.equals(algorithm)) {
return new P_SHA1();
} else {
throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE,
"unknownAlgorithm", new Object[] {algorithm});
}
}
}