001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *  http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    
020    package org.apache.geronimo.javamail.store.nntp.newsrc;
021    
022    import java.io.BufferedReader;
023    import java.io.File;
024    import java.io.FileInputStream;
025    import java.io.FileOutputStream;
026    import java.io.IOException;
027    import java.io.InputStreamReader;
028    import java.io.OutputStreamWriter;
029    import java.io.Writer;
030    
031    public class NNTPNewsrcFile extends NNTPNewsrc {
032        // source for the file data
033        File source;
034    
035        /**
036         * Construct a NNTPNewsrc object that is targetted at a file-based backing
037         * store.
038         * 
039         * @param source
040         *            The source File for the .newsrc data.
041         */
042        public NNTPNewsrcFile(File source) {
043            this.source = source;
044        }
045    
046        /**
047         * Retrieve an input reader for loading the newsrc file.
048         * 
049         * @return A BufferedReader object for reading from the newsrc file.
050         * @exception IOException
051         */
052        public BufferedReader getInputReader() throws IOException {
053            return new BufferedReader(new InputStreamReader(new FileInputStream(source)));
054        }
055    
056        /**
057         * Obtain a writer for saving a newsrc file.
058         * 
059         * @return The output writer targetted to the newsrc file.
060         * @exception IOException
061         */
062        public Writer getOutputWriter() throws IOException {
063            // open this for overwriting
064            return new OutputStreamWriter(new FileOutputStream(source, false));
065        }
066    }