org.broadleafcommerce.common.payment.AccountNumberMask Maven / Gradle / Ivy

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A collection of classes shared by broadleaf profile, cms, admin, and core.

There is a newer version: 3.1.15-GA

/*
 * Copyright 2008-2013 the original author or authors.
 *
 * 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 org.broadleafcommerce.common.payment;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class AccountNumberMask {

    private List ranges;
    private char maskCharacter;

    public AccountNumberMask(List ranges, char maskCharacter) {
        this.ranges = ranges;
        this.maskCharacter = maskCharacter;
    }

    public String mask (String accountNumber) {
        if (accountNumber == null) {
            throw new RuntimeException("account number is null");
        }
        char[] characters = accountNumber.toCharArray();
        char[] newCharacters = new char[characters.length];
        //do mask phase
        Arrays.fill(newCharacters, 0, newCharacters.length, maskCharacter);
        for (UnmaskRange range : ranges) {
            if (range.getPositionType() == UnmaskRange.BEGINNINGTYPE) {
                System.arraycopy(characters, 0, newCharacters, 0, range.getLength());
            } else {
                System.arraycopy(characters, characters.length - range.getLength(), newCharacters, newCharacters.length - range.getLength(), range.getLength());
            }
        }

        return new String(newCharacters);
    }

    public static void main( String[] args ) {
        ArrayList ranges = new ArrayList();
        ranges.add(new UnmaskRange(UnmaskRange.BEGINNINGTYPE, 4));
        ranges.add(new UnmaskRange(UnmaskRange.ENDTYPE, 4));
        AccountNumberMask mask = new AccountNumberMask(ranges, 'X');
        System.out.println("Card: " + mask.mask( "1111111111111111" ) );
        System.out.println("Card: " + mask.mask( "111111111111111" ) );
    }
}