| Clover coverage report - gsbase - 2.0.1 |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| StringComparator.java | 0% | 0% | 0% | 0% |
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| 1 | /* | |
| 2 | * Copyright (c) 1998, 2005 Gargoyle Software Inc. All rights reserved. | |
| 3 | * | |
| 4 | * Redistribution and use in source and binary forms, with or without | |
| 5 | * modification, are permitted provided that the following conditions are met: | |
| 6 | * | |
| 7 | * 1. Redistributions of source code must retain the above copyright notice, | |
| 8 | * this list of conditions and the following disclaimer. | |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 10 | * this list of conditions and the following disclaimer in the documentation | |
| 11 | * and/or other materials provided with the distribution. | |
| 12 | * 3. The end-user documentation included with the redistribution, if any, must | |
| 13 | * include the following acknowledgment: | |
| 14 | * | |
| 15 | * "This product includes software developed by Gargoyle Software Inc. | |
| 16 | * (http://www.GargoyleSoftware.com/)." | |
| 17 | * | |
| 18 | * Alternately, this acknowledgment may appear in the software itself, if | |
| 19 | * and wherever such third-party acknowledgments normally appear. | |
| 20 | * 4. The name "Gargoyle Software" must not be used to endorse or promote | |
| 21 | * products derived from this software without prior written permission. | |
| 22 | * For written permission, please contact info@GargoyleSoftware.com. | |
| 23 | * 5. Products derived from this software may not be called "GSBase", nor may | |
| 24 | * "GSBase" appear in their name, without prior written permission of | |
| 25 | * Gargoyle Software Inc. | |
| 26 | * | |
| 27 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, | |
| 28 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 29 | * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARGOYLE | |
| 30 | * SOFTWARE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| 31 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 32 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | |
| 33 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| 34 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 35 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
| 36 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 37 | */ | |
| 38 | package com.gargoylesoftware.base.collections; | |
| 39 | ||
| 40 | import java.text.Collator; | |
| 41 | import java.util.Comparator; | |
| 42 | import java.util.Locale; | |
| 43 | ||
| 44 | /** | |
| 45 | * A concrete implementation of Comparator that compares two strings. If a locale | |
| 46 | * is specified then the comparison will be performed using the locale specific | |
| 47 | * collating sequences. If the locale is not specified then a binary comparison | |
| 48 | * will be performed. | |
| 49 | * | |
| 50 | * @version $Revision: 1.4 $ | |
| 51 | * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a> | |
| 52 | */ | |
| 53 | public class StringComparator | |
| 54 | implements | |
| 55 | Comparator { | |
| 56 | ||
| 57 | private final Locale locale_; | |
| 58 | private final Collator collator_; | |
| 59 | private final boolean isAscending_; | |
| 60 | ||
| 61 | /** | |
| 62 | * Create a locale specific comparator. | |
| 63 | * | |
| 64 | * @param locale The locale to be used when determining sorting order. | |
| 65 | * If locale is null then a binary comparison is performed. | |
| 66 | * @param collatorStrength The strength value to be used by the | |
| 67 | * Collator. If locale is null then this value is ignored. | |
| 68 | * @param isAscending True if we are sorting in ascending order, false | |
| 69 | * otherwise. | |
| 70 | */ | |
| 71 | 0 | public StringComparator( |
| 72 | final Locale locale, | |
| 73 | final int collatorStrength, | |
| 74 | final boolean isAscending ) { | |
| 75 | ||
| 76 | 0 | locale_ = locale; |
| 77 | 0 | if( locale_ == null ) { |
| 78 | 0 | collator_ = null; |
| 79 | } | |
| 80 | else { | |
| 81 | 0 | collator_ = Collator.getInstance(locale_); |
| 82 | 0 | collator_.setStrength( collatorStrength ); |
| 83 | } | |
| 84 | 0 | isAscending_ = isAscending; |
| 85 | } | |
| 86 | ||
| 87 | /** | |
| 88 | * Create a locale specific comparator. | |
| 89 | * | |
| 90 | * @param locale The locale to be used when determining sorting order. | |
| 91 | * If locale is null then a binary comparison is performed. | |
| 92 | */ | |
| 93 | 0 | public StringComparator( final Locale locale ) { |
| 94 | 0 | this( locale, Collator.PRIMARY, true ); |
| 95 | } | |
| 96 | ||
| 97 | /** | |
| 98 | * Compare the two strings. | |
| 99 | * @param object1 The first string. | |
| 100 | * @param object2 The second string. | |
| 101 | * @return a negative integer, zero, or a positive integer as the first | |
| 102 | * argument is less than, equal to, or greater than the second. | |
| 103 | */ | |
| 104 | 0 | public int compare( final Object object1, final Object object2 ) { |
| 105 | 0 | int rc; |
| 106 | ||
| 107 | 0 | final String string1 = object1.toString(); |
| 108 | 0 | final String string2 = object2.toString(); |
| 109 | ||
| 110 | 0 | if( locale_ == null ) { |
| 111 | // Perform a binary compare. Individual characters are sorted | |
| 112 | //by their unicode values. | |
| 113 | 0 | rc = string1.compareTo(string2); |
| 114 | } | |
| 115 | else { | |
| 116 | // Perform a locale specific compare. | |
| 117 | 0 | rc = collator_.compare( string1, string2 ); |
| 118 | } | |
| 119 | ||
| 120 | // If we're sorting in descending order then flip the result now. | |
| 121 | 0 | if( isAscending_ == false ) { |
| 122 | 0 | rc *= -1; |
| 123 | } | |
| 124 | ||
| 125 | 0 | return rc; |
| 126 | } | |
| 127 | } | |
| 128 |
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