| /* |
| * 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.eagle.jpm.spark.history.crawl; |
| |
| |
| import org.json.simple.JSONObject; |
| import org.json.simple.parser.JSONParser; |
| import org.json.simple.parser.ParseException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.BufferedReader; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| |
| public class JHFSparkParser implements JHFParserBase { |
| |
| private static final Logger logger = LoggerFactory.getLogger(JHFSparkParser.class); |
| |
| private boolean isValidJson; |
| |
| private JHFSparkEventReader eventReader; |
| |
| public JHFSparkParser(JHFSparkEventReader reader) { |
| this.eventReader = reader; |
| } |
| |
| @Override |
| public void parse(InputStream is) throws Exception { |
| try (BufferedReader reader = new BufferedReader(new InputStreamReader(is))) { |
| for (String line = reader.readLine(); line != null; line = reader.readLine()) { |
| isValidJson = true; |
| JSONObject eventObj = parseAndValidateJSON(line); |
| if (isValidJson && eventObj != null) { |
| this.eventReader.read(eventObj); |
| } |
| } |
| this.eventReader.clearReader(); |
| } |
| } |
| |
| private JSONObject parseAndValidateJSON(String line) { |
| JSONObject eventObj = null; |
| JSONParser parser = new JSONParser(); |
| try { |
| eventObj = (JSONObject) parser.parse(line); |
| } catch (ParseException ex) { |
| isValidJson = false; |
| logger.error(String.format("Invalid json string. Fail to parse %s.", line), ex); |
| } |
| return eventObj; |
| } |
| } |