1 /*******************************************************************************
2 * Copyright 2013 André Rouél and Dominik Seichter
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 package net.sf.qualitytest.blueprint.strategy.creation;
17
18 import java.util.UUID;
19
20 import javax.annotation.Nonnegative;
21
22 import net.sf.qualitycheck.ArgumentsChecked;
23 import net.sf.qualitycheck.Check;
24
25 /**
26 * Strategy which creates random strings using {@code Blueprint.string()}.
27 *
28 * Optionally a maximum length for the generated strings can be specified.
29 *
30 * @author Dominik Seichter
31 */
32 public class BlueprintStringCreationStrategy extends ValueCreationStrategy<String> {
33
34 private final int maxLength;
35
36 /**
37 * Create a string creation strategy which creates strings with the default length (standard UUID).
38 */
39 public BlueprintStringCreationStrategy() {
40 maxLength = -1;
41 }
42
43 @ArgumentsChecked
44 public BlueprintStringCreationStrategy(@Nonnegative final int maxLength) {
45 this.maxLength = Check.notNegative(maxLength, "maxLength");
46 }
47
48 @Override
49 public String createValue(final Class<?> expectedClass) {
50 final String ret = UUID.randomUUID().toString();
51
52 if (maxLength >= 0) {
53 return ret.substring(0, maxLength);
54 } else {
55 return ret;
56 }
57 }
58
59 }