1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
* 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.mapr.streams;
import java.io.IOException;
import java.util.List;
import org.apache.drill.common.exceptions.UserException;
import org.apache.drill.common.expression.SchemaPath;
import org.apache.drill.common.logical.StoragePluginConfig;
import org.apache.drill.exec.physical.base.AbstractGroupScan;
import org.apache.drill.exec.physical.base.AbstractWriter;
import org.apache.drill.exec.physical.base.PhysicalOperator;
import org.apache.drill.exec.planner.common.DrillStatsTable;
import org.apache.drill.exec.server.DrillbitContext;
import org.apache.drill.exec.store.dfs.FileSelection;
import org.apache.drill.exec.store.dfs.FormatMatcher;
import org.apache.drill.exec.store.mapr.TableFormatPlugin;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
public class StreamsFormatPlugin extends TableFormatPlugin {
private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(StreamsFormatPlugin.class);
private StreamsFormatMatcher matcher;
public StreamsFormatPlugin(String name, DrillbitContext context, Configuration fsConf,
StoragePluginConfig storageConfig, StreamsFormatPluginConfig formatConfig) {
super(name, context, fsConf, storageConfig, formatConfig);
matcher = new StreamsFormatMatcher(this);
}
@Override
public boolean supportsRead() {
return true;
}
@Override
public boolean supportsWrite() {
return false;
}
@Override
public boolean supportsAutoPartitioning() {
return false;
}
@Override
public FormatMatcher getMatcher() {
return matcher;
}
@Override
public AbstractWriter getWriter(PhysicalOperator child, String location,
List<String> partitionColumns) throws IOException {
throw new UnsupportedOperationException();
}
@Override
public AbstractGroupScan getGroupScan(String userName, FileSelection selection, List<SchemaPath> columns) {
List<Path> files = selection.getFiles();
assert (files.size() == 1);
//TableProperties props = getMaprFS().getTableProperties(new Path(files.get(0)));
throw UserException.unsupportedError().message("MapR streams can not be querried at this time.").build(logger);
}
@Override
public boolean supportsStatistics() {
return false;
}
@Override
public DrillStatsTable.TableStatistics readStatistics(FileSystem fs, Path statsTablePath) {
throw new UnsupportedOperationException("unimplemented");
}
@Override
public void writeStatistics(DrillStatsTable.TableStatistics statistics, FileSystem fs, Path statsTablePath) {
throw new UnsupportedOperationException("unimplemented");
}
}
|
