1 /**
2 * Copyright 2005-2012 The Kuali Foundation
3 *
4 * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
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 org.kuali.rice.krad.util;
17
18 import java.io.ByteArrayOutputStream;
19 import java.io.PrintStream;
20
21 /**
22 * Builds a <code>{@link String}</code> instance using a pattern similar to the varargs printf() variety.
23 *
24 *
25 */
26 public class PatternedStringBuilder {
27 private String _pattern;
28
29 /**
30 * Constructor that takes a pattern
31 *
32 * @param pattern
33 */
34 public PatternedStringBuilder(String pattern) {
35 setPattern(pattern);
36 }
37
38 /**
39 * Write accessor method for pattern
40 *
41 * @param pattern
42 */
43 public void setPattern(String pattern) {
44 _pattern = pattern;
45 }
46
47 /**
48 * Read accessor method for pattern
49 *
50 * @return String
51 */
52 public String getPattern() {
53 return _pattern;
54 }
55
56 /**
57 * Takes an ellipses of <code>{@link String}</code> parameters and builds a <code>{@link String}</code> instance from them
58 * and the pattern given earlier.
59 *
60 * @param args
61 * @return String
62 */
63 public String sprintf(Object... args) {
64 ByteArrayOutputStream retval = new ByteArrayOutputStream();
65
66 new PrintStream(retval).printf(getPattern(), args);
67
68 return retval.toString();
69 }
70 }