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/*
* 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.tuscany.das.rdb.test.mappings;
import java.io.UnsupportedEncodingException;
import org.apache.tuscany.das.rdb.Converter;
public class StringObfuscationConverter implements Converter {
public StringObfuscationConverter() {
super();
}
public Object getPropertyValue(Object columnData) {
return toRot13((String) columnData);
}
public Object getColumnValue(Object propertyData) {
return toRot13((String) propertyData);
}
// Utilities
// A simple, reversible, obfuscation algorithm using a ROT13 implementation
private String toRot13(String original) {
int abyte = 0;
byte[] buffer = {};
try {
buffer = original.getBytes("ISO-8859-1");
} catch (UnsupportedEncodingException e) {
throw new Error(e);
}
for (int i = 0; i < buffer.length; i++) {
abyte = buffer[i];
int cap = abyte & 32;
abyte &= ~cap;
abyte = ((abyte >= 'A') && (abyte <= 'Z') ? ((abyte - 'A' + 13) % 26 + 'A') : abyte) | cap;
buffer[i] = (byte) abyte;
}
try {
return new String(buffer, "ISO-8859-1");
} catch (UnsupportedEncodingException e) {
throw new Error(e);
}
}
}
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