001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.wicket.resource;
018
019import java.io.IOException;
020import java.io.InputStream;
021import java.io.InputStreamReader;
022import java.io.Reader;
023
024import org.apache.wicket.util.value.ValueMap;
025
026/**
027 * Load properties from properties file via a Reader, which allows to provide the charset and thus
028 * the encoding can be different than ISO 8859-1.
029 * 
030 * @author Juergen Donnerstag
031 */
032public class UtfPropertiesFilePropertiesLoader implements IPropertiesLoader
033{
034        private final String fileExtension;
035
036        private final String encoding;
037
038        /**
039         * Construct.
040         * 
041         * @param fileExtension
042         * @param encoding
043         */
044        public UtfPropertiesFilePropertiesLoader(final String fileExtension, final String encoding)
045        {
046                this.fileExtension = fileExtension;
047                this.encoding = encoding;
048        }
049
050        /**
051         * @see org.apache.wicket.resource.IPropertiesLoader#getFileExtension()
052         */
053        @Override
054        public final String getFileExtension()
055        {
056                return fileExtension;
057        }
058
059        /**
060         * @see org.apache.wicket.resource.IPropertiesLoader#loadJavaProperties(java.io.InputStream)
061         */
062        @Override
063        public java.util.Properties loadJavaProperties(final InputStream in) throws IOException
064        {
065                java.util.Properties properties = new java.util.Properties();
066                Reader reader = new InputStreamReader(in, encoding);
067
068                properties.load(reader);
069
070                return properties;
071        }
072
073        /**
074         * @see org.apache.wicket.resource.IPropertiesLoader#loadWicketProperties(java.io.InputStream)
075         */
076        @Override
077        public ValueMap loadWicketProperties(InputStream inputStream)
078        {
079                return null;
080        }
081}