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Bus Sensitive
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/*********************************************************************************
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 * The MIT License (MIT)                                                         *
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 * Copyright (c) 2015-2020 aoju.org and other contributors.                      *
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 * all copies or substantial portions of 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;

/**
 * 公司开户银行联号
 * 前四位明文,后面脱敏
 *
 * @author Kimi Liu
 * @version 6.1.3
 * @since JDK 1.8+
 */
public class CnapsStrategy extends AbstractProvider {

    @Override
    public Object build(Object object, Context context) {
        if (ObjectKit.isEmpty(object)) {
            return null;
        }
        final Shield shield = context.getShield();
        String snapCard = object.toString();
        return StringKit.rightPad(
                StringKit.left(snapCard, 4),
                StringKit.length(snapCard),
                StringKit.fill(10, shield.shadow()
                )
        );
    }

}