1 /*
2 * (c) Copyright 2006-2020 by rapiddweller GmbH & Volker Bergmann. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, is permitted under the terms of the
6 * GNU General Public License.
7 *
8 * For redistributing this software or a derivative work under a license other
9 * than the GPL-compatible Free Software License as defined by the Free
10 * Software Foundation or approved by OSI, you must first obtain a commercial
11 * license to this software product from rapiddweller GmbH & Volker Bergmann.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
14 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
15 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
17 * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
18 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24 * POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 package com.rapiddweller.domain.br;
28
29 import com.rapiddweller.benerator.util.ThreadSafeNonNullGenerator;
30
31 import java.util.ArrayList;
32 import java.util.Random;
33
34 /**
35 * Generates Brazilian CPF numbers. CPF stands for 'Cadastro de Pessoa Fisica'
36 * and is a tax payer number assigned to an individual person (Pessoa Fisica).
37 *
38 * @author Eric Chaves
39 * @author Volker Bergmann
40 * @since 0.6.0
41 */
42 public class CPFGenerator extends ThreadSafeNonNullGenerator<String> {
43
44 /**
45 * flag indicating should return CPF in numeric or formatted form.
46 * defaults to true
47 */
48 private final boolean formatted;
49 private final Random random;
50
51 /**
52 * Instantiates a new Cpf generator.
53 */
54 public CPFGenerator() {
55 this(false);
56 }
57
58 /**
59 * Instantiates a new Cpf generator.
60 *
61 * @param formatted the formatted
62 */
63 public CPFGenerator(boolean formatted) {
64 this.random = new Random();
65 this.formatted = formatted;
66 }
67
68 private static void addDigit(ArrayList<Integer> digits) {
69 int sum = 0;
70 for (int i = 0, j = digits.size() + 1; i < digits.size(); i++, j--) {
71 sum += digits.get(i) * j;
72 }
73 digits.add((sum % 11 < 2) ? 0 : 11 - (sum % 11));
74 }
75
76 @Override
77 public String generate() {
78 StringBuilder buf = new StringBuilder();
79 ArrayList<Integer> digits = new ArrayList<>();
80
81 for (int i = 0; i < 9; i++) {
82 digits.add(random.nextInt(9));
83 }
84 addDigit(digits);
85 addDigit(digits);
86
87 for (Integer digit : digits) {
88 buf.append(digit);
89 }
90 if (this.formatted) {
91 buf.insert(3, '.');
92 buf.insert(7, '.');
93 buf.insert(11, '-');
94 }
95 return buf.toString();
96 }
97
98 @Override
99 public Class<String> getGeneratedType() {
100 return String.class;
101 }
102
103 }