1p4pk commented on a change in pull request #114: URL: https://github.com/apache/bahir-flink/pull/114#discussion_r596043273
########## File path: flink-connector-influxdb2/src/main/java/org/apache/flink/streaming/connectors/influxdb/common/InfluxParser.java ########## @@ -0,0 +1,140 @@ +/* + * 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.flink.streaming.connectors.influxdb.common; + +import java.text.ParseException; +import java.util.List; +import java.util.regex.Pattern; +import javax.annotation.Nullable; +import org.antlr.v4.runtime.ANTLRInputStream; +import org.antlr.v4.runtime.CharStream; +import org.antlr.v4.runtime.CommonTokenStream; +import org.antlr.v4.runtime.TokenStream; +import org.apache.druid.data.input.influx.InfluxLineProtocolLexer; +import org.apache.druid.data.input.influx.InfluxLineProtocolParser; +import org.apache.druid.data.input.influx.InfluxLineProtocolParser.TimestampContext; + +/** + * This is an InfluxDB line protocol parser. + * + * @see <a href=https://docs.influxdata.com/influxdb/v2.0/reference/syntax/line-protocol/";>Line + * Protocol</a> + * @see <a + * href=https://github.com/apache/druid/blob/master/extensions-contrib/influx-extensions/src/main/java/org/apache/druid/data/input/influx/InfluxParser.java> + * Apache Druid InfluxDB Parser </a> + */ +public class InfluxParser { + private static final Pattern BACKSLASH_PATTERN = Pattern.compile("\\\\\""); + private static final Pattern IDENTIFIER_PATTERN = Pattern.compile("\\\\([,= ])"); + + @Nullable + public DataPoint parseToDataPoint(final String input) throws ParseException { + final CharStream charStream = new ANTLRInputStream(input); + final InfluxLineProtocolLexer lexer = new InfluxLineProtocolLexer(charStream); + final TokenStream tokenStream = new CommonTokenStream(lexer); + final InfluxLineProtocolParser parser = new InfluxLineProtocolParser(tokenStream); Review comment: Is static now ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
