01: /*
02: * (c) Copyright 2007 by Volker Bergmann. All rights reserved.
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, is permitted under the terms of the
06: * GNU General Public License.
07: *
08: * For redistributing this software or a derivative work under a license other
09: * 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 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 org.databene.benerator.primitive.regex;
28:
29: import org.databene.benerator.Generator;
30: import org.databene.benerator.GeneratorProxy;
31: import org.databene.benerator.Sequence;
32: import org.databene.benerator.primitive.number.adapter.IntegerGenerator;
33:
34: /**
35: * Calls another string generator a variable number of times and appends a variable number of times.<br/>
36: * <br/>
37: * Created: 17.11.2007 16:37:43
38: */
39: class NFoldCompositeStringGenerator extends GeneratorProxy<String> {
40:
41: private int minCount;
42:
43: private int maxcount;
44:
45: /** A number generator for generating quanities */
46: private Generator<Integer> quantityGenerator;
47:
48: public NFoldCompositeStringGenerator(
49: Generator<String> patternGenerator, int minCount,
50: int maxCount) {
51: super (patternGenerator);
52: this .minCount = minCount;
53: this .maxcount = maxCount;
54: this .quantityGenerator = new IntegerGenerator(minCount,
55: maxCount, 1, Sequence.RANDOM);
56: }
57:
58: // Generator interface ---------------------------------------------------------------------------------------------
59:
60: public Class<String> getGeneratedType() {
61: return String.class;
62: }
63:
64: /** Determines a quantity, invokes the pattern as many times and assembles the products to a String */
65: public String generate() {
66: StringBuffer buffer = new StringBuffer();
67: int count = quantityGenerator.generate();
68: for (int i = 0; i < count; i++)
69: if (source.available())
70: buffer.append(source.generate());
71: return buffer.toString();
72: }
73:
74: // java.lang.Object overrides --------------------------------------------------------------------------------------
75:
76: public String toString() {
77: return getClass().getSimpleName() + "[source=" + source + ", "
78: + minCount + "<=partCount<=" + maxcount + ']';
79: }
80: }
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