| /** |
| * 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.apex.malhar.contrib.parser; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.apex.malhar.contrib.parser.log.CommonLog; |
| import org.apache.hadoop.classification.InterfaceStability; |
| |
| import com.datatorrent.api.Context; |
| |
| /** |
| * Operator that parses a log string tuple against the |
| * a specified json schema and emits POJO on a parsed port and tuples that could not be |
| * parsed on error port.<br> |
| * <b>Properties</b><br> |
| * <b>jsonSchema</b>:schema as a string<br> |
| * <b>pojoClass</b>:Pojo class in case of user specified schema<br> |
| * <b>Ports</b> <br> |
| * <b>in</b>:input tuple as a String. Each tuple represents a log<br> |
| * <b>parsedOutput</b>:tuples that are validated against the specified schema are emitted |
| * as POJO on this port<br> |
| * <b>err</b>:tuples that do not confine to log format are emitted on this port as |
| * KeyValPair<String,String><br> |
| * Key being the tuple and Val being the reason. |
| * |
| * @since 3.7.0 |
| */ |
| @InterfaceStability.Evolving |
| public class CommonLogParser extends LogParser |
| { |
| private static final Logger logger = LoggerFactory.getLogger(CommonLogParser.class); |
| |
| private String schema = "{\n" + |
| " \"fields\": [{\n" + |
| " \"field\": \"host\",\n" + |
| " \"regex\": \"^([0-9.]+)\"\n" + |
| " }, {\n" + |
| " \"field\": \"rfc931\",\n" + |
| " \"regex\": \"(\\\\S+)\"\n" + |
| " }, {\n" + |
| " \"field\": \"username\",\n" + |
| " \"regex\": \"(\\\\S+)\"\n" + |
| " }, {\n" + |
| " \"field\": \"datetime\",\n" + |
| " \"regex\": \"\\\\[(.*?)\\\\]\"\n" + |
| " },{\n" + |
| " \"field\": \"request\",\n" + |
| " \"regex\": \"\\\"((?:[^\\\"]|\\\")+)\\\"\"\n" + |
| " },{\n" + |
| " \"field\": \"statusCode\",\n" + |
| " \"regex\": \"(\\\\d{3})\"\n" + |
| " },{\n" + |
| " \"field\": \"bytes\",\n" + |
| " \"regex\": \"(\\\\d+|-)\"\n" + |
| " }]\n" + |
| "}"; |
| |
| |
| @Override |
| public void setup(Context.OperatorContext context) |
| { |
| this.setLogFileFormat(schema); |
| super.setup(context); |
| super.setClazz(CommonLog.class); |
| } |
| |
| |
| } |