org.aoju.bus.sensitive.strategy.DafaultStrategy Maven / Gradle / Ivy

Go to download
/*********************************************************************************
 *                                                                               *
 * The MIT License (MIT)                                                         *
 *                                                                               *
 * Copyright (c) 2015-2020 aoju.org and other contributors.                      *
 *                                                                               *
 * Permission is hereby granted, free of charge, to any person obtaining a copy  *
 * of this software and associated documentation files (the "Software"), to deal *
 * in the Software without restriction, including without limitation the rights  *
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell     *
 * copies of the Software, and to permit persons to whom the Software is         *
 * furnished to do so, subject to the following conditions:                      *
 *                                                                               *
 * The above copyright notice and this permission notice shall be included in    *
 * all copies or substantial portions of the Software.                           *
 *                                                                               *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR    *
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,      *
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE   *
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER        *
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, *
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN     *
 * THE SOFTWARE.                                                                 *
 *                                                                               *
 ********************************************************************************/
package org.aoju.bus.sensitive.strategy;

import org.aoju.bus.core.lang.Symbol;
import org.aoju.bus.core.toolkit.CollKit;
import org.aoju.bus.core.toolkit.ObjectKit;
import org.aoju.bus.extra.emoji.EmojiKit;
import org.aoju.bus.sensitive.Context;
import org.aoju.bus.sensitive.provider.AbstractProvider;

/**
 * 默认脱敏处理类
 *
 * @author Kimi Liu
 * @version 6.1.3
 * @since JDK 1.8+
 */
public class DafaultStrategy extends AbstractProvider {

    @Override
    public Object build(Object object, Context context) {
        if (ObjectKit.isEmpty(object)) {
            return null;
        }

        String value = object.toString();

        if (CollKit.isNotEmpty(EmojiKit.extractEmojis(value))) {
            return value;
        }

        final int SIZE = 6;
        final int TWO = 2;
        final String SYMBOL = Symbol.STAR;

        int len = value.length();
        int pamaone = len / TWO;
        int pamatwo = pamaone - 1;
        int pamathree = len % TWO;
        StringBuilder stringBuilder = new StringBuilder();
        if (len <= TWO) {
            if (pamathree == 1) {
                return SYMBOL;
            }
            stringBuilder.append(SYMBOL);
            stringBuilder.append(value.charAt(len - 1));
        } else {
            if (pamatwo <= 0) {
                stringBuilder.append(value.substring(0, 1));
                stringBuilder.append(SYMBOL);
                stringBuilder.append(value.substring(len - 1, len));

            } else if (pamatwo >= SIZE / TWO && SIZE + 1 != len) {
                int pamafive = (len - SIZE) / 2;
                stringBuilder.append(value.substring(0, pamafive));
                for (int i = 0; i < SIZE; i++) {
                    stringBuilder.append(SYMBOL);
                }

                if ((pamathree == 0 && SIZE / 2 == 0) || (pamathree != 0 && SIZE % 2 != 0)) {
                    stringBuilder.append(value.substring(len - pamafive, len));
                } else {
                    stringBuilder.append(value.substring(len - (pamafive + 1), len));
                }
            } else {
                int pamafour = len - 2;
                stringBuilder.append(value.substring(0, 1));
                for (int i = 0; i < pamafour; i++) {
                    stringBuilder.append(SYMBOL);
                }
                stringBuilder.append(value.substring(len - 1, len));
            }
        }
        return stringBuilder.toString();
    }

}