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/*
* Copyright (c) 2016, Huawei Technologies Co., Ltd.
*
* 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.openo.baseservice.encrypt.cbb;
import org.openo.baseservice.encrypt.cbb.impl.AesCipherFactory;
import org.openo.baseservice.encrypt.cbb.inf.AbstractCipher;
import org.openo.baseservice.encrypt.cbb.inf.AbstractCipherFactory;
/**
* Helps create cipher instances from factory.<br/>
* <p>
* Creates the cipher instances using cipher factory. By default it uses AesCipherFactory.
* Can be changed through spring.
* </p>
*
* @author
* @version SDNO 0.5 08-Jun-2016
*/
public final class CipherCreator {
private static CipherCreator instance = new CipherCreator();
private AbstractCipherFactory factory = new AesCipherFactory();
/**
* Constructor<br/>
* <p>
* private
* </p>
*
* @since SDNO 0.5
*/
private CipherCreator() {
}
/**
* Singleton instance.
* <br/>
*
* @return
* @since SDNO 0.5
*/
public static CipherCreator instance() {
return instance;
}
/**
* Creates cipher with default key.
* <br/>
*
* @return cipher instance with default key.
* @since SDNO 0.5
*/
public AbstractCipher create() {
return factory.createCipherManager();
}
/**
* Creates cipher instance with a key.
* <br/>
*
* @param key the key to be used for encryption and decryption.
* @return cipher instance with specified key.
* @since SDNO 0.5
*/
public AbstractCipher create(final String key) {
return factory.createCipherManager(key);
}
/**
* Sets the cipher factory instance.
* <br/>
*
* @param factory cipher factory.
* @since SDNO 0.5
*/
public void setFactory(final AbstractCipherFactory factory) {
this.factory = factory;
}
}
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