| /** |
| * 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.metron.parsers.csv; |
| |
| import static org.hamcrest.CoreMatchers.equalTo; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertNull; |
| import static org.junit.jupiter.api.Assertions.assertThrows; |
| import static org.junit.jupiter.api.Assertions.assertTrue; |
| |
| |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.util.List; |
| import org.adrianwalker.multilinestring.Multiline; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.log4j.Level; |
| import org.apache.metron.common.configuration.SensorParserConfig; |
| import org.apache.metron.common.utils.JSONUtils; |
| import org.apache.metron.parsers.interfaces.MessageParser; |
| import org.apache.metron.test.utils.UnitTestHelper; |
| import org.json.simple.JSONObject; |
| import org.junit.jupiter.api.Test; |
| |
| public class CSVParserTest { |
| /** |
| { |
| "parserClassName" : "org.apache.metron.parsers.csv.CSVParser" |
| ,"sensorTopic":"dummy" |
| ,"parserConfig": |
| { |
| "columns" : { |
| "col1" : 0 |
| ," col2" : 1 |
| ,"col3 " : 2 |
| } |
| } |
| } |
| */ |
| @Multiline |
| public static String parserConfig; |
| |
| @Test |
| public void test() throws IOException { |
| CSVParser parser = new CSVParser(); |
| |
| SensorParserConfig config = JSONUtils.INSTANCE.load(parserConfig, SensorParserConfig.class); |
| parser.init(); |
| parser.configure(config.getParserConfig()); |
| { |
| String line = "#foo,bar,grok"; |
| assertEquals(0, parser.parse(Bytes.toBytes(line)).size()); |
| } |
| { |
| String line = ""; |
| assertEquals(0, parser.parse(Bytes.toBytes(line)).size()); |
| } |
| { |
| String line = "foo,bar,grok"; |
| List<JSONObject> results = parser.parse(Bytes.toBytes(line)); |
| assertEquals(1, results.size()); |
| JSONObject o = results.get(0); |
| assertTrue(parser.validate(o)); |
| assertEquals(5, o.size()); |
| assertEquals("foo", o.get("col1")); |
| assertEquals("bar", o.get("col2")); |
| assertEquals("grok", o.get("col3")); |
| } |
| { |
| String line = "\"foo\", \"bar\",\"grok\""; |
| List<JSONObject> results = parser.parse(Bytes.toBytes(line)); |
| assertEquals(1, results.size()); |
| JSONObject o = results.get(0); |
| assertTrue(parser.validate(o)); |
| assertEquals(5, o.size()); |
| assertEquals("foo", o.get("col1")); |
| assertEquals("bar", o.get("col2")); |
| assertEquals("grok", o.get("col3")); |
| } |
| { |
| String line = "foo, bar, grok"; |
| List<JSONObject> results = parser.parse(Bytes.toBytes(line)); |
| assertEquals(1, results.size()); |
| JSONObject o = results.get(0); |
| assertTrue(parser.validate(o)); |
| assertEquals(5, o.size()); |
| assertEquals("foo", o.get("col1")); |
| assertEquals("bar", o.get("col2")); |
| assertEquals("grok", o.get("col3")); |
| } |
| { |
| String line = " foo , bar , grok "; |
| List<JSONObject> results = parser.parse(Bytes.toBytes(line)); |
| assertEquals(1, results.size()); |
| JSONObject o = results.get(0); |
| assertTrue(parser.validate(o)); |
| assertEquals(5, o.size()); |
| assertEquals("foo", o.get("col1")); |
| assertEquals("bar", o.get("col2")); |
| assertEquals("grok", o.get("col3")); |
| assertNull(o.get(" col2")); |
| assertNull(o.get("col3 ")); |
| } |
| { |
| UnitTestHelper.setLog4jLevel(CSVParser.class, Level.FATAL); |
| String line = "foo"; |
| assertThrows(IllegalStateException.class, () -> parser.parse(Bytes.toBytes(line))); |
| UnitTestHelper.setLog4jLevel(CSVParser.class, Level.ERROR); |
| } |
| } |
| |
| @Test |
| public void getsReadCharsetFromConfig() throws IOException { |
| SensorParserConfig config = JSONUtils.INSTANCE.load(parserConfig, SensorParserConfig.class); |
| CSVParser parser = new CSVParser(); |
| parser.init(); |
| config.getParserConfig().put(MessageParser.READ_CHARSET, StandardCharsets.UTF_16.toString()); |
| parser.configure(config.getParserConfig()); |
| assertThat(parser.getReadCharset(), equalTo(StandardCharsets.UTF_16)); |
| } |
| |
| @Test |
| public void getsReadCharsetFromDefault() throws IOException { |
| SensorParserConfig config = JSONUtils.INSTANCE.load(parserConfig, SensorParserConfig.class); |
| CSVParser parser = new CSVParser(); |
| parser.init(); |
| parser.configure(config.getParserConfig()); |
| assertThat(parser.getReadCharset(), equalTo(StandardCharsets.UTF_8)); |
| } |
| } |