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/*
* 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.drill.exec.store.syslog;
import org.apache.drill.shaded.guava.com.google.common.collect.Lists;
import org.apache.drill.common.exceptions.ExecutionSetupException;
import org.apache.drill.common.expression.SchemaPath;
import org.apache.drill.common.logical.StoragePluginConfig;
import org.apache.drill.exec.ops.FragmentContext;
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 org.apache.drill.exec.proto.UserBitShared.CoreOperatorType;
import java.util.List;
public class SyslogFormatPlugin extends EasyFormatPlugin<SyslogFormatConfig> {
public static final String DEFAULT_NAME = "syslog";
private final SyslogFormatConfig formatConfig;
public SyslogFormatPlugin(String name, DrillbitContext context,
Configuration fsConf, StoragePluginConfig storageConfig,
SyslogFormatConfig formatConfig) {
super(name, context, fsConf, storageConfig, formatConfig,
true, // readable
false, // writable
true, // blockSplittable
true, // compressible
Lists.newArrayList(formatConfig.getExtensions()),
DEFAULT_NAME);
this.formatConfig = formatConfig;
}
@Override
public RecordReader getRecordReader(FragmentContext context, DrillFileSystem dfs, FileWork fileWork,
List<SchemaPath> columns, String userName) throws ExecutionSetupException {
return new SyslogRecordReader(context, dfs, fileWork, columns, userName, formatConfig);
}
@Override
public boolean supportsPushDown() {
return true;
}
@Override
public RecordWriter getRecordWriter(FragmentContext context,
EasyWriter writer) throws UnsupportedOperationException {
throw new UnsupportedOperationException("Drill does not support writing records to Syslog format.");
}
@Override
public int getReaderOperatorType() {
return CoreOperatorType.SYSLOG_SUB_SCAN_VALUE;
}
@Override
public int getWriterOperatorType() {
throw new UnsupportedOperationException("Drill does not support writing records to Syslog format.");
}
}
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