1 /*
2 * Copyright 2007-2008 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.kns.web.format;
17
18 import java.util.Collection;
19 import java.util.Iterator;
20
21 /**
22 * Formats a collection into a string that looks like an array. To print out each element,
23 * the toString method of each element is called.
24 *
25 * @author Kuali Rice Team (rice.collab@kuali.org)
26 *
27 */
28 public class CollectionFormatter extends Formatter {
29
30 /**
31 * Formats a collection into a string that looks like an array.
32 *
33 * @see org.kuali.rice.kns.web.format.Formatter#format(java.lang.Object)
34 */
35 @Override
36 public Object format(Object value) {
37 StringBuilder buf = new StringBuilder();
38 buf.append("[");
39
40 Collection collection = (Collection) value;
41 Iterator i = collection.iterator();
42 boolean hasNext = i.hasNext();
43 while (hasNext) {
44 Object elem = i.next();
45 buf.append(elem);
46
47 hasNext = i.hasNext();
48 if (hasNext) {
49 buf.append(", ");
50 }
51 }
52 buf.append("]");
53 return buf.toString();
54 }
55
56 }