diff options
Diffstat (limited to 'propertysheet/src/org/eclipse/wb/internal/core/nls/model/LocaleInfo.java')
| -rw-r--r-- | propertysheet/src/org/eclipse/wb/internal/core/nls/model/LocaleInfo.java | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/propertysheet/src/org/eclipse/wb/internal/core/nls/model/LocaleInfo.java b/propertysheet/src/org/eclipse/wb/internal/core/nls/model/LocaleInfo.java new file mode 100644 index 0000000..0403351 --- /dev/null +++ b/propertysheet/src/org/eclipse/wb/internal/core/nls/model/LocaleInfo.java @@ -0,0 +1,190 @@ +/******************************************************************************* + * Copyright (c) 2011 Google, Inc. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * Google, Inc. - initial API and implementation + *******************************************************************************/ +package org.eclipse.wb.internal.core.nls.model; + +import java.util.Locale; + +/** + * Information about {@link Locale}. + * + * We separate {@link LocaleInfo} from {@link BundleInfo} because {@link BundleInfo} is wrapper for + * single *.properties file and we support more than one source of bundles in one + * {@link CompilationUnit}. + * + * @author scheglov_ke + * @coverage core.nls + */ +public final class LocaleInfo implements Comparable<LocaleInfo> { + /** + * The default {@link LocaleInfo}. + */ + public static final LocaleInfo DEFAULT = new LocaleInfo(null); + //////////////////////////////////////////////////////////////////////////// + // + // Instance fields + // + //////////////////////////////////////////////////////////////////////////// + private final Locale m_locale; + + //////////////////////////////////////////////////////////////////////////// + // + // Constructor + // + //////////////////////////////////////////////////////////////////////////// + public LocaleInfo(Locale locale) { + m_locale = locale; + } + + //////////////////////////////////////////////////////////////////////////// + // + // Object + // + //////////////////////////////////////////////////////////////////////////// + @Override + public String toString() { + return getTitle(); + } + + @Override + public boolean equals(Object obj) { + if (obj == this) { + return true; + } + if (obj instanceof LocaleInfo) { + LocaleInfo localeInfo = (LocaleInfo) obj; + if (isDefault()) { + return localeInfo.isDefault(); + } + return m_locale.equals(localeInfo.m_locale); + } + return false; + } + + @Override + public int hashCode() { + if (isDefault()) { + return 0; + } + return m_locale.hashCode(); + } + + //////////////////////////////////////////////////////////////////////////// + // + // Comparable + // + //////////////////////////////////////////////////////////////////////////// + @Override +public int compareTo(LocaleInfo o) { + if (m_locale == null) { + if (o.m_locale == null) { + return 0; + } + return -1; + } + if (o.m_locale == null) { + return 1; + } + String localeNameA = m_locale.toString(); + String localeNameB = o.m_locale.toString(); + return localeNameA.compareTo(localeNameB); + } + + //////////////////////////////////////////////////////////////////////////// + // + // Access + // + //////////////////////////////////////////////////////////////////////////// + /** + * @return {@link Locale} for this {@link LocaleInfo}. + */ + public Locale getLocale() { + return m_locale; + } + + /** + * @return <code>true</code> if that {@link Locale} is default. + */ + public boolean isDefault() { + return m_locale == null; + } + + /** + * @return the title to display in UI. + */ + public String getTitle() { + if (isDefault()) { + return "(default)"; + } + return m_locale.toString(); + } + + //////////////////////////////////////////////////////////////////////////// + // + // Utils + // + //////////////////////////////////////////////////////////////////////////// + /** + * @return the "parent" {@link LocaleInfo} from given array.<br> + * Here "parent" is locale that is more general than current one.<br> + * For example "parent" locale for 'ru_RU' is 'ru'. + * + * If there are no parent locale in array, return default locale.<br> + */ + public LocaleInfo getParent(LocaleInfo locales[]) { + String localeName = m_locale.toString(); + int lastSeparatorIndex = localeName.lastIndexOf('_'); + if (lastSeparatorIndex != -1) { + String parentLocaleName = localeName.substring(0, lastSeparatorIndex); + // try to find locale with parent name + for (LocaleInfo locale : locales) { + if (locale.getLocale() != null && locale.getLocale().toString().equals(parentLocaleName)) { + return locale; + } + } + } + // use default + return LocaleInfo.DEFAULT; + } + + /** + * @param localeName + * the name of locale, such as "en" or "ru_RU". + * @param localeDescription + * the description of {@link Locale}, used in exception. + * @return the {@link LocaleInfo} which wraps {@link Locale}. + */ + public static LocaleInfo create(String localeName, String localeDescription) { + // try to find locale in list of available locales + Locale[] locales = Locale.getAvailableLocales(); + for (int i = 0; i < locales.length; i++) { + Locale locale = locales[i]; + if (locale.toString().equals(localeName)) { + return new LocaleInfo(locale); + } + } + // try to create new, this constructor is since 1.4, so do this in try/catch + try { + Locale locale; + int separatorIndex = localeName.indexOf('_'); + if (separatorIndex != -1) { + String language = localeName.substring(0, separatorIndex); + String country = localeName.substring(separatorIndex + 1); + locale = new Locale(language, country); + } else { + locale = new Locale(localeName); + } + return new LocaleInfo(locale); + } catch (Throwable e) { + String msg = "Locale not found for " + localeDescription; + throw new IllegalArgumentException(msg); + } + } +} |