| /* |
| * 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.hadoop.chukwa.extraction.engine.datasource.record; |
| |
| |
| import java.io.IOException; |
| import java.util.LinkedList; |
| import java.util.List; |
| import org.apache.hadoop.chukwa.extraction.engine.ChukwaRecord; |
| import org.apache.hadoop.chukwa.extraction.engine.Record; |
| import org.apache.hadoop.fs.FSDataInputStream; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| |
| public class ChukwaFileParser { |
| static final int timestampField = 0; |
| |
| @SuppressWarnings("deprecation") |
| public static List<Record> readData(String cluster, String dataSource, |
| int maxRows, long t1, long t0, long maxOffset, String filter, |
| String fileName, FileSystem fs) throws MalformedFileFormat { |
| |
| // String source = "NameNode." + fileName; |
| List<Record> records = new LinkedList<Record>(); |
| FSDataInputStream dataIS = null; |
| int lineCount = 0; |
| |
| try { |
| |
| if (!fs.exists(new Path(fileName))) { |
| System.out.println("fileName not there!"); |
| return records; |
| } |
| System.out.println("NameNodeParser Open [" + fileName + "]"); |
| |
| dataIS = fs.open(new Path(fileName)); |
| System.out.println("NameNodeParser Open2 [" + fileName + "]"); |
| |
| long timestamp = 0; |
| int listSize = 0; |
| String line = null; |
| String[] data = null; |
| long offset = 0; |
| |
| do { |
| offset = dataIS.getPos(); |
| |
| // Need TODO something here |
| // if (offset > maxOffset) |
| // { |
| // break; |
| // } |
| |
| line = dataIS.readLine(); |
| lineCount++; |
| // System.out.println("NameNodeParser Line [" +line + "]"); |
| if (line != null) { |
| |
| // empty lines |
| if (line.length() < 14) { |
| // System.out.println("NameNodeParser Line < 14! [" +line + "]"); |
| continue; |
| } |
| // System.out.println("Line [" +line + "]"); |
| data = line.split("\t");// Default separator for TextOutputFormat! |
| |
| try { |
| timestamp = Long.parseLong(data[timestampField]); |
| |
| } catch (Exception e) { |
| e.printStackTrace(); |
| // throw new MalformedFileFormat(e); |
| } |
| if (timestamp < t0) { |
| // System.out.println("Line not in range. Skipping: " +line); |
| // System.out.println("Search for: " + new Date(t0) + " is :" + new |
| // Date(timestamp)); |
| continue; |
| } else if ((timestamp < t1) && (offset < maxOffset)) // JB (epochTS < |
| // maxDate) |
| { |
| |
| // System.out.println("In Range: " + line); |
| boolean valid = false; |
| |
| if ((filter == null || filter.equals(""))) { |
| valid = true; |
| } else if (line.indexOf(filter) > 0) { |
| valid = true; |
| } |
| |
| if (valid) { |
| // System.out.println("In Range In Filter: " + line); |
| ChukwaRecord record = new ChukwaRecord(); |
| record.setTime(timestamp); |
| record.add("offset", "" + offset); |
| record.add(Record.bodyField, data[1]); |
| record.add(Record.sourceField, dataSource); |
| |
| records.add(record); |
| listSize = records.size(); |
| if (listSize > maxRows) { |
| records.remove(0); |
| // System.out.println("==========>>>>>REMOVING: " + e); |
| } |
| } else { |
| // System.out.println( |
| // "In Range ==================>>>>>>>>> OUT Regex: " + line); |
| } |
| |
| } else { |
| // System.out.println("Line out of range. Stopping now: " +line); |
| break; |
| } |
| } |
| |
| } while (line != null); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } finally { |
| System.out.println("File: " + fileName + " Line count: " + lineCount); |
| try { |
| if(dataIS != null) { |
| dataIS.close(); |
| } |
| } catch (IOException e) { |
| } |
| } |
| return records; |
| } |
| } |