1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0 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 17 package com.android.ide.common.resources.configuration; 18 19 import java.util.regex.Matcher; 20 import java.util.regex.Pattern; 21 22 /** 23 * Resource Qualifier for Region. 24 */ 25 public final class RegionQualifier extends ResourceQualifier { 26 private final static Pattern sRegionPattern = Pattern.compile("^r([A-Z]{2})$"); //$NON-NLS-1$ 27 28 public static final String FAKE_REGION_VALUE = "__"; //$NON-NLS-1$ 29 public static final String NAME = "Region"; 30 31 private String mValue; 32 33 /** 34 * Creates and returns a qualifier from the given folder segment. If the segment is incorrect, 35 * <code>null</code> is returned. 36 * @param segment the folder segment from which to create a qualifier. 37 * @return a new {@link RegionQualifier} object or <code>null</code> 38 */ getQualifier(String segment)39 public static RegionQualifier getQualifier(String segment) { 40 Matcher m = sRegionPattern.matcher(segment); 41 if (m.matches()) { 42 RegionQualifier qualifier = new RegionQualifier(); 43 qualifier.mValue = m.group(1); 44 45 return qualifier; 46 } 47 return null; 48 } 49 50 /** 51 * Returns the folder name segment for the given value. This is equivalent to calling 52 * {@link #toString()} on a {@link RegionQualifier} object. 53 * @param value the value of the qualifier, as returned by {@link #getValue()}. 54 */ getFolderSegment(String value)55 public static String getFolderSegment(String value) { 56 if (value != null) { 57 String segment = "r" + value.toUpperCase(); //$NON-NLS-1$ 58 if (sRegionPattern.matcher(segment).matches()) { 59 return segment; 60 } 61 } 62 63 return ""; //$NON-NLS-1$ 64 } 65 RegionQualifier()66 public RegionQualifier() { 67 68 } 69 RegionQualifier(String value)70 public RegionQualifier(String value) { 71 mValue = value; 72 } 73 getValue()74 public String getValue() { 75 if (mValue != null) { 76 return mValue; 77 } 78 79 return ""; //$NON-NLS-1$ 80 } 81 82 @Override getName()83 public String getName() { 84 return NAME; 85 } 86 87 @Override getShortName()88 public String getShortName() { 89 return NAME; 90 } 91 92 @Override isValid()93 public boolean isValid() { 94 return mValue != null; 95 } 96 97 @Override hasFakeValue()98 public boolean hasFakeValue() { 99 return FAKE_REGION_VALUE.equals(mValue); 100 } 101 102 @Override checkAndSet(String value, FolderConfiguration config)103 public boolean checkAndSet(String value, FolderConfiguration config) { 104 RegionQualifier qualifier = getQualifier(value); 105 if (qualifier != null) { 106 config.setRegionQualifier(qualifier); 107 return true; 108 } 109 110 return false; 111 } 112 113 @Override equals(Object qualifier)114 public boolean equals(Object qualifier) { 115 if (qualifier instanceof RegionQualifier) { 116 if (mValue == null) { 117 return ((RegionQualifier)qualifier).mValue == null; 118 } 119 return mValue.equals(((RegionQualifier)qualifier).mValue); 120 } 121 122 return false; 123 } 124 125 @Override hashCode()126 public int hashCode() { 127 if (mValue != null) { 128 return mValue.hashCode(); 129 } 130 131 return 0; 132 } 133 134 /** 135 * Returns the string used to represent this qualifier in the folder name. 136 */ 137 @Override getFolderSegment()138 public String getFolderSegment() { 139 return getFolderSegment(mValue); 140 } 141 142 @Override getShortDisplayValue()143 public String getShortDisplayValue() { 144 if (mValue != null) { 145 return mValue; 146 } 147 148 return ""; //$NON-NLS-1$ 149 } 150 151 @Override getLongDisplayValue()152 public String getLongDisplayValue() { 153 if (mValue != null) { 154 return String.format("Region %s", mValue); 155 } 156 157 return ""; //$NON-NLS-1$ 158 } 159 } 160