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Bus Sensitive
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/*********************************************************************************
 *                                                                               *
 * The MIT License (MIT)                                                         *
 *                                                                               *
 * Copyright (c) 2015-2020 aoju.org and other contributors.                      *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy  *
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 * copies of the Software, and to permit persons to whom the Software is         *
 * furnished to do so, subject to the following conditions:                      *
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 * The above copyright notice and this permission notice shall be included in    *
 * all copies or substantial portions of the Software.                           *
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 * THE SOFTWARE.                                                                 *
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package org.aoju.bus.sensitive.strategy;

import org.aoju.bus.core.toolkit.ObjectKit;
import org.aoju.bus.core.toolkit.StringKit;
import org.aoju.bus.sensitive.Context;
import org.aoju.bus.sensitive.annotation.Shield;
import org.aoju.bus.sensitive.provider.AbstractProvider;

/**
 * 签约协议号脱敏方式
 * 19031317273364059018
 * 签约协议号脱敏格式为前6位后6位保留明文,中间脱敏
 *
 * @author Kimi Liu
 * @version 6.1.3
 * @since JDK 1.8+
 */
public class PayStrategy extends AbstractProvider {

    @Override
    public Object build(Object object, Context context) {
        if (ObjectKit.isEmpty(object)) {
            return null;
        }
        final Shield shield = context.getShield();
        String agreementNo = object.toString();
        return StringKit.left(agreementNo, 6).concat(
                StringKit.removeStart(
                        StringKit.leftPad(
                                StringKit.right(agreementNo, 6),
                                StringKit.length(agreementNo), shield.shadow()
                        ),
                        StringKit.fill(3, shield.shadow())
                )
        );
    }

}