| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.commons.vfs2.util; |
| |
| import java.io.IOException; |
| import java.net.URL; |
| import java.util.Enumeration; |
| import java.util.Locale; |
| import java.util.Properties; |
| import java.util.ResourceBundle; |
| |
| /** |
| * @since 2.0 |
| */ |
| public class CombinedResources extends ResourceBundle |
| { |
| // locale.getLanguage() |
| // locale.getCountry() |
| // locale.getVariant() |
| |
| private final String resourceName; |
| private boolean inited; |
| private final Properties properties = new Properties(); |
| |
| public CombinedResources(final String resourceName) |
| { |
| this.resourceName = resourceName; |
| } |
| |
| protected void init() |
| { |
| if (inited) |
| { |
| return; |
| } |
| |
| loadResources(getResourceName()); |
| loadResources(Locale.getDefault()); |
| loadResources(getLocale()); |
| inited = true; |
| } |
| |
| protected void loadResources(final Locale locale) |
| { |
| if (locale == null) |
| { |
| return; |
| } |
| final String[] parts = new String[]{locale.getLanguage(), locale.getCountry(), locale.getVariant()}; |
| final StringBuilder sb = new StringBuilder(); |
| for (int i = 0; i < 3; i++) |
| { |
| sb.append(getResourceName()); |
| for (int j = 0; j < i; j++) |
| { |
| sb.append('_').append(parts[j]); |
| } |
| if (parts[i].length() != 0) |
| { |
| sb.append('_').append(parts[i]); |
| loadResources(sb.toString()); |
| } |
| sb.setLength(0); |
| } |
| } |
| |
| protected void loadResources(String resourceName) |
| { |
| ClassLoader loader = getClass().getClassLoader(); |
| if (loader == null) |
| { |
| loader = ClassLoader.getSystemClassLoader(); |
| } |
| resourceName = resourceName.replace('.', '/') + ".properties"; |
| try |
| { |
| final Enumeration<URL> resources = loader.getResources(resourceName); |
| while (resources.hasMoreElements()) |
| { |
| final URL resource = resources.nextElement(); |
| try |
| { |
| properties.load(resource.openConnection().getInputStream()); |
| } |
| catch (final IOException ignored) |
| { |
| /* Ignored. */ |
| } |
| } |
| } |
| catch (final IOException ignored) |
| { |
| /* Ignored. */ |
| } |
| } |
| |
| public String getResourceName() |
| { |
| return resourceName; |
| } |
| |
| @Override |
| public Enumeration<String> getKeys() |
| { |
| if (!inited) |
| { |
| init(); |
| } |
| return new Enumeration<String>() |
| { |
| @Override |
| public boolean hasMoreElements() |
| { |
| return properties.keys().hasMoreElements(); |
| } |
| @Override |
| public String nextElement() |
| { |
| // We know that our properties will only ever contain Strings |
| return (String) properties.keys().nextElement(); |
| } |
| |
| }; |
| } |
| |
| @Override |
| protected Object handleGetObject(final String key) |
| { |
| if (!inited) |
| { |
| init(); |
| } |
| return properties.get(key); |
| } |
| } |