de.alpharogroup.crypto.keyrules.Obfuscator.java Source code

Introduction

Here is the source code for de.alpharogroup.crypto.keyrules.Obfuscator.java

Source

/**
 * Copyright (C) 2007 Asterios Raptis
 *
 * 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 de.alpharogroup.crypto.keyrules;

import java.util.Map;

import org.apache.commons.lang.StringUtils;

import de.alpharogroup.check.Check;

/**
 * The Class {@link Obfuscator} obfuscates the given {@link SimpleKeyRule}.
 */
public class Obfuscator implements Obfuscatable {

    /** The rule. */
    private final SimpleKeyRule rule;

    /** The key. */
    private final String key;

    /**
     * Instantiates a new {@link Obfuscator}.
     *
     * @param rule
     *            the rule
     * @param key
     *            the key
     */
    public Obfuscator(final SimpleKeyRule rule, final String key) {
        Check.get().notNull(rule, "rule");
        Check.get().notEmpty(key, "key");
        this.rule = rule;
        this.key = key;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String disentangle() {
        String clonedKey = obfuscate();
        final Map<String, String> rules = rule.getRules();
        for (final Map.Entry<String, String> rule : rules.entrySet()) {
            clonedKey = StringUtils.replace(clonedKey, rule.getValue(), rule.getKey());
        }
        return clonedKey;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String obfuscate() {
        final Map<String, String> rules = rule.getRules();
        String clonedKey = key;
        for (final Map.Entry<String, String> rule : rules.entrySet()) {
            clonedKey = StringUtils.replace(clonedKey, rule.getKey(), rule.getValue());
        }
        return clonedKey;

    }

}