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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.ide.common.resources.configuration;
import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Resource Qualifier for Region.
*/
public final class RegionQualifier extends ResourceQualifier {
private final static Pattern sRegionPattern = Pattern.compile("^r([A-Z]{2})$"); //$NON-NLS-1$
public static final String FAKE_REGION_VALUE = "__"; //$NON-NLS-1$
public static final String NAME = "Region";
private String mValue;
/**
* Creates and returns a qualifier from the given folder segment. If the segment is incorrect,
* <code>null</code> is returned.
* @param segment the folder segment from which to create a qualifier.
* @return a new {@link RegionQualifier} object or <code>null</code>
*/
public static RegionQualifier getQualifier(String segment) {
Matcher m = sRegionPattern.matcher(segment);
if (m.matches()) {
RegionQualifier qualifier = new RegionQualifier();
qualifier.mValue = m.group(1);
return qualifier;
}
return null;
}
/**
* Returns the folder name segment for the given value. This is equivalent to calling
* {@link #toString()} on a {@link RegionQualifier} object.
* @param value the value of the qualifier, as returned by {@link #getValue()}.
*/
public static String getFolderSegment(String value) {
if (value != null) {
// See http://developer.android.com/reference/java/util/Locale.html#default_locale
String segment = "r" + value.toUpperCase(Locale.US); //$NON-NLS-1$
if (sRegionPattern.matcher(segment).matches()) {
return segment;
}
}
return ""; //$NON-NLS-1$
}
public RegionQualifier() {
}
public RegionQualifier(String value) {
mValue = value;
}
public String getValue() {
if (mValue != null) {
return mValue;
}
return ""; //$NON-NLS-1$
}
@Override
public String getName() {
return NAME;
}
@Override
public String getShortName() {
return NAME;
}
@Override
public int since() {
return 1;
}
@Override
public boolean isValid() {
return mValue != null;
}
@Override
public boolean hasFakeValue() {
return FAKE_REGION_VALUE.equals(mValue);
}
@Override
public boolean checkAndSet(String value, FolderConfiguration config) {
RegionQualifier qualifier = getQualifier(value);
if (qualifier != null) {
config.setRegionQualifier(qualifier);
return true;
}
return false;
}
@Override
public boolean equals(Object qualifier) {
if (qualifier instanceof RegionQualifier) {
if (mValue == null) {
return ((RegionQualifier)qualifier).mValue == null;
}
return mValue.equals(((RegionQualifier)qualifier).mValue);
}
return false;
}
@Override
public int hashCode() {
if (mValue != null) {
return mValue.hashCode();
}
return 0;
}
/**
* Returns the string used to represent this qualifier in the folder name.
*/
@Override
public String getFolderSegment() {
return getFolderSegment(mValue);
}
@Override
public String getShortDisplayValue() {
if (mValue != null) {
return mValue;
}
return ""; //$NON-NLS-1$
}
@Override
public String getLongDisplayValue() {
if (mValue != null) {
return String.format("Region %s", mValue);
}
return ""; //$NON-NLS-1$
}
}
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