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 * Licensed to the Apache Software Foundation (ASF) under one   *
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 * 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   *
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 * software distributed under the License is distributed on an  *
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
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package org.apache.james.blob.objectstorage.crypto;

import com.amazonaws.util.StringUtils;
import com.google.common.base.Preconditions;
import com.google.crypto.tink.subtle.Hex;

public class CryptoConfigBuilder {
    private String salt;
    private char[] password;

    CryptoConfigBuilder() {
    }

    public CryptoConfigBuilder salt(String salt) {
        this.salt = salt;
        return this;
    }

    public CryptoConfigBuilder password(char[] password) {
        this.password = password;
        return this;
    }

    public CryptoConfig build() {
        Preconditions.checkState(!StringUtils.isNullOrEmpty(salt));
        Preconditions.checkState(password != null && password.length > 0);
        return new CryptoConfig(Hex.encode(Hex.decode(salt)), password);
    }
}
