paul-rogers commented on a change in pull request #1114: DRILL-6104: Added Logfile Reader URL: https://github.com/apache/drill/pull/1114#discussion_r203257224
########## File path: exec/java-exec/src/main/java/org/apache/drill/exec/store/log/LogFormatPlugin.java ########## @@ -0,0 +1,151 @@ +package org.apache.drill.exec.store.log; + +/* + * 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. + */ + + +import com.fasterxml.jackson.annotation.JsonInclude; +import com.fasterxml.jackson.annotation.JsonTypeName; +import com.google.common.collect.ImmutableList; +import org.apache.drill.common.exceptions.ExecutionSetupException; +import org.apache.drill.common.expression.SchemaPath; +import org.apache.drill.common.logical.FormatPluginConfig; +import org.apache.drill.common.logical.StoragePluginConfig; +import org.apache.drill.exec.ops.FragmentContext; +import org.apache.drill.exec.proto.UserBitShared; +import org.apache.drill.exec.server.DrillbitContext; +import org.apache.drill.exec.store.RecordReader; +import org.apache.drill.exec.store.RecordWriter; +import org.apache.drill.exec.store.dfs.DrillFileSystem; +import org.apache.drill.exec.store.dfs.easy.EasyFormatPlugin; +import org.apache.drill.exec.store.dfs.easy.EasyWriter; +import org.apache.drill.exec.store.dfs.easy.FileWork; +import org.apache.hadoop.conf.Configuration; + +import java.io.IOException; +import java.util.List; + +public class LogFormatPlugin extends EasyFormatPlugin<LogFormatPlugin.LogFormatConfig> { + + private static final boolean IS_COMPRESSIBLE = true; + private static final String DEFAULT_NAME = "log"; + private LogFormatConfig config; + + private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(LogFormatPlugin.class); + + public LogFormatPlugin(String name, DrillbitContext context, Configuration fsConf, StoragePluginConfig storageConfig) { + this(name, context, fsConf, storageConfig, new LogFormatConfig()); + } + + public LogFormatPlugin(String name, DrillbitContext context, Configuration fsConf, StoragePluginConfig config, LogFormatConfig formatPluginConfig) { + super(name, context, fsConf, config, formatPluginConfig, true, false, false, IS_COMPRESSIBLE, formatPluginConfig.getExtensions(), DEFAULT_NAME); + this.config = formatPluginConfig; + } + + @Override + public RecordReader getRecordReader(FragmentContext context, DrillFileSystem dfs, FileWork fileWork, + List<SchemaPath> columns, String userName) throws ExecutionSetupException { + return new LogRecordReader(context, fileWork.getPath(), dfs, columns, config); + } + + @Override + public int getReaderOperatorType() { + return UserBitShared.CoreOperatorType.JSON_SUB_SCAN_VALUE; + } + + @Override + public int getWriterOperatorType() { + throw new UnsupportedOperationException(); + } + + @Override + public boolean supportsPushDown() { + return true; Review comment: Just for future reference: we did provide an example and the latest code reflects that example. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
