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comparison org.eclipse.core.databinding/src/org/eclipse/core/internal/databinding/conversion/StringToBooleanPrimitiveConverter.d @ 78:0a55d2d5a946

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Added file for databinding
author Frank Benoit <benoit@tionex.de>
date Tue, 14 Apr 2009 11:35:29 +0200
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76:f05e6e8b2f2d 78:0a55d2d5a946
1 /*
2 * Copyright cast(C) 2005 db4objects Inc. http://www.db4o.com
3 *
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
8 *
9 * Contributors:
10 * db4objects - Initial API and implementation
11 * Tom Schindl<tom.schindl@bestsolution.at> - bugfix for 217940
12 */
13 module org.eclipse.core.internal.databinding.conversion.StringToBooleanPrimitiveConverter;
14
15 import java.lang.all;
16
17 import java.util.Arrays;
18 import java.util.LinkedList;
19 import java.util.List;
20 import java.util.StringTokenizer;
21
22 import org.eclipse.core.databinding.conversion.IConverter;
23 import org.eclipse.core.internal.databinding.BindingMessages;
24
25 /**
26 * StringToBooleanPrimitiveConverter.
27 */
28 public class StringToBooleanPrimitiveConverter : IConverter {
29 private static final String[] trueValues;
30
31 private static final String[] falseValues;
32
33 static this(){
34 String delimiter = BindingMessages.getStringcast(BindingMessages.VALUE_DELIMITER);
35 String values = BindingMessages.getStringcast(BindingMessages.TRUE_STRING_VALUES);
36 trueValues = valuesToSortedArray(delimiter, values);
37
38 values = BindingMessages.getStringcast(BindingMessages.FALSE_STRING_VALUES);
39 falseValues = valuesToSortedArray(delimiter, values);
40 }
41
42 /**
43 * Returns a sorted array with all values converted to upper case.
44 *
45 * @param delimiter
46 * @param values
47 * @return sorted array of values
48 */
49 private static String[] valuesToSortedArray(String delimiter, String values) {
50 List list = new LinkedList();
51 StringTokenizer tokenizer = new StringTokenizer(values, delimiter);
52 while (tokenizer.hasMoreTokens()) {
53 list.add(tokenizer.nextToken().toUpperCase());
54 }
55
56 String[] array = cast(String[]) list.toArray(new String[list.size()]);
57 Arrays.sort(array);
58
59 return array;
60 }
61
62 /*
63 * (non-Javadoc)
64 *
65 * @see org.eclipse.jface.binding.converter.IConverter#convert(java.lang.Object)
66 */
67 public Object convert(Object source) {
68 String s = cast(String) source;
69 s = s.toUpperCase();
70
71 if (Arrays.binarySearch(trueValues, s) > -1) {
72 return Boolean.TRUE;
73 }
74
75 if (Arrays.binarySearch(falseValues, s) > -1) {
76 return Boolean.FALSE;
77 }
78
79 throw new IllegalArgumentException(s ~ " is not a legal bool value"); //$NON-NLS-1$
80 }
81
82 public Object getFromType() {
83 return String.classinfo;
84 }
85
86 public Object getToType() {
87 return Boolean.TYPE;
88 }
89
90 }