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1   /*
2    * Copyright 2006 Christian Kalkhoff <me@ninan.info>
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *         http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package net.sf.plausj.bank.german.strategy;
18  
19  import net.sf.plausj.bank.german.AccountCode;
20  import net.sf.plausj.bank.german.BankCode;
21  import net.sf.plausj.bank.german.CheckDigit;
22  import net.sf.plausj.bank.german.strategy.util.Strategy27AlikeHelper;
23  
24  /**
25   * @author ninan
26   * 
27   */
28  public class Strategy27 implements Strategy {
29  
30  	private static final int[][] transformationTable = new int[][] {
31  			{ 0, 1, 5, 9, 3, 7, 4, 8, 2, 6 }, { 0, 1, 7, 6, 9, 8, 3, 2, 5, 4 },
32  			{ 0, 1, 8, 4, 6, 2, 9, 5, 7, 3 }, { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 } };
33  
34  	/**
35  	 * @see net.sf.plausj.bank.german.strategy.Strategy#calculateCheckDigit(net.sf.plausj.bank.german.BankCode,
36  	 *      net.sf.plausj.bank.german.AccountCode)
37  	 */
38  	public CheckDigit calculateCheckDigit(final BankCode bankCode,
39  			final AccountCode accountCode) {
40  
41  		long acLong = Long.parseLong(accountCode.getAccountCode());
42  		if (acLong < 1000000000) {
43  			return new Strategy00().calculateCheckDigit(bankCode, accountCode);
44  		} else {
45  			int sum = Strategy27AlikeHelper.calculateSum(accountCode,
46  					transformationTable);
47  			int cd = Strategy27AlikeHelper.getCheckDigitFromSum(sum);
48  			return new CheckDigit(9, cd);
49  		}
50  	}
51  
52  }