01: /**
02: * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
03: *
04: * Permission is hereby granted, free of charge, to any person obtaining a copy
05: * of this software and associated documentation files (the "Software"), to deal
06: * in the Software without restriction, including without limitation the rights
07: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
08: * copies of the Software, and to permit persons to whom the Software is
09: * furnished to do so, subject to the following conditions:
10: *
11: * The above copyright notice and this permission notice shall be included in
12: * all copies or substantial portions of the Software.
13: *
14: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15: * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17: * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18: * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19: * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20: * SOFTWARE.
21: */package com.liferay.util;
22:
23: import com.liferay.portal.kernel.util.StringPool;
24: import com.liferay.portal.kernel.util.StringUtil;
25:
26: import java.io.BufferedReader;
27: import java.io.File;
28: import java.io.FileReader;
29: import java.io.IOException;
30:
31: import java.util.Set;
32:
33: /**
34: * <a href="SetUtil.java.html"><b><i>View Source</i></b></a>
35: *
36: * @author Brian Wing Shun Chan
37: *
38: */
39: public class SetUtil {
40:
41: public static Set fromArray(Object[] array) {
42: if ((array == null) || (array.length == 0)) {
43: return CollectionFactory.getHashSet();
44: }
45:
46: Set set = CollectionFactory.getHashSet(array.length);
47:
48: for (int i = 0; i < array.length; i++) {
49: set.add(array[i]);
50: }
51:
52: return set;
53: }
54:
55: public static Set fromFile(String fileName) throws IOException {
56: return fromFile(new File(fileName));
57: }
58:
59: public static Set fromFile(File file) throws IOException {
60: Set set = CollectionFactory.getHashSet();
61:
62: BufferedReader br = new BufferedReader(new FileReader(file));
63:
64: String s = StringPool.BLANK;
65:
66: while ((s = br.readLine()) != null) {
67: set.add(s);
68: }
69:
70: br.close();
71:
72: return set;
73: }
74:
75: public static Set fromString(String s) {
76: return fromArray(StringUtil.split(s, StringPool.NEW_LINE));
77: }
78:
79: }
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