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, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019package org.apache.oozie.util;
020
021import java.io.BufferedReader;
022import java.io.IOException;
023
024/**
025 * A simplified version of {@link TimestampedMessageParser} which doesn't do any filtering when reading the lines from the Reader.
026 * This is useful when processing a Reader where the lines have already been filtered, so we can be more efficient by not
027 * doing the same filtering again.
028 */
029public class SimpleTimestampedMessageParser extends TimestampedMessageParser {
030
031    public SimpleTimestampedMessageParser(BufferedReader reader, XLogFilter filter) {
032        super(reader, filter);
033    }
034
035    /**
036     * This implementation simply returns the next line from the Reader.
037     *
038     * @return LogLine containing the next line from the Reader
039     * @throws IOException if the next line can't be read
040     */
041    @Override
042    protected LogLine parseNextLogLine() throws IOException {
043        String line = null;
044        if ((line = reader.readLine()) != null) {
045            LogLine logLine = new LogLine();
046            logLine.setLine(line);
047            logLine.setLogParts(splitLogMessage(line));
048            return logLine;
049        }
050        return null;
051    }
052}