-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
TemporalIndexPopulator.java
287 lines (253 loc) · 9.55 KB
/
TemporalIndexPopulator.java
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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
/*
* Copyright (c) 2002-2018 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.kernel.impl.index.schema;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.io.pagecache.PageCache;
import org.neo4j.kernel.api.exceptions.index.IndexEntryConflictException;
import org.neo4j.kernel.api.index.IndexEntryUpdate;
import org.neo4j.kernel.api.index.IndexPopulator;
import org.neo4j.kernel.api.index.IndexUpdater;
import org.neo4j.kernel.api.index.PropertyAccessor;
import org.neo4j.kernel.api.index.SchemaIndexProvider;
import org.neo4j.kernel.api.schema.index.IndexDescriptor;
import org.neo4j.kernel.impl.api.index.sampling.DefaultNonUniqueIndexSampler;
import org.neo4j.kernel.impl.api.index.sampling.IndexSamplingConfig;
import org.neo4j.kernel.impl.api.index.sampling.UniqueIndexSampler;
import org.neo4j.storageengine.api.schema.IndexReader;
import org.neo4j.storageengine.api.schema.IndexSample;
import org.neo4j.values.storable.Value;
import static org.neo4j.kernel.impl.index.schema.fusion.FusionIndexUtils.forAll;
class TemporalIndexPopulator extends TemporalIndexCache<TemporalIndexPopulator.PartPopulator<?>, IOException> implements IndexPopulator
{
private final IndexSamplerWrapper sampler;
TemporalIndexPopulator( long indexId,
IndexDescriptor descriptor,
IndexSamplingConfig samplingConfig,
TemporalIndexFiles temporalIndexFiles,
PageCache pageCache,
FileSystemAbstraction fs,
SchemaIndexProvider.Monitor monitor )
{
super( new PartFactory( pageCache, fs, temporalIndexFiles, indexId, descriptor, samplingConfig, monitor ) );
this.sampler = new IndexSamplerWrapper( descriptor, samplingConfig );
}
@Override
public synchronized void create() throws IOException
{
forAll( NativeSchemaIndexPopulator::clear, this );
}
@Override
public synchronized void drop() throws IOException
{
forAll( NativeSchemaIndexPopulator::drop, this );
}
@Override
public void add( Collection<? extends IndexEntryUpdate<?>> updates ) throws IndexEntryConflictException, IOException
{
for ( IndexEntryUpdate<?> update : updates )
{
select( update.values()[0].valueGroup() ).batchUpdate( update );
}
for ( PartPopulator part : this )
{
part.applyUpdateBatch();
}
}
@Override
public void verifyDeferredConstraints( PropertyAccessor propertyAccessor )
throws IndexEntryConflictException, IOException
{
// No-op, uniqueness is checked for each update in add(IndexEntryUpdate)
}
@Override
public IndexUpdater newPopulatingUpdater( PropertyAccessor accessor )
{
return new TemporalIndexPopulatingUpdater( this, accessor );
}
@Override
public synchronized void close( boolean populationCompletedSuccessfully ) throws IOException
{
for ( NativeSchemaIndexPopulator part : this )
{
part.close( populationCompletedSuccessfully );
}
}
@Override
public synchronized void markAsFailed( String failure )
{
for ( NativeSchemaIndexPopulator part : this )
{
part.markAsFailed( failure );
}
}
@Override
public void includeSample( IndexEntryUpdate<?> update )
{
sampler.includeSample( update.values() );
}
@Override
public IndexSample sampleResult()
{
return sampler.sampleResult();
}
private static class IndexSamplerWrapper
{
private final DefaultNonUniqueIndexSampler generalSampler;
private final UniqueIndexSampler uniqueSampler;
IndexSamplerWrapper( IndexDescriptor descriptor, IndexSamplingConfig samplingConfig )
{
switch ( descriptor.type() )
{
case GENERAL:
generalSampler = new DefaultNonUniqueIndexSampler( samplingConfig.sampleSizeLimit() );
uniqueSampler = null;
break;
case UNIQUE:
generalSampler = null;
uniqueSampler = new UniqueIndexSampler();
break;
default:
throw new UnsupportedOperationException( "Unexpected index type " + descriptor.type() );
}
}
void includeSample( Value[] values )
{
if ( uniqueSampler != null )
{
uniqueSampler.increment( 1 );
}
else
{
generalSampler.include( SamplingUtil.encodedStringValuesForSampling( (Object[]) values ) );
}
}
IndexSample sampleResult()
{
if ( uniqueSampler != null )
{
return uniqueSampler.result();
}
else
{
return generalSampler.result();
}
}
}
static class PartPopulator<KEY extends NativeSchemaKey> extends NativeSchemaIndexPopulator<KEY, NativeSchemaValue>
{
List<IndexEntryUpdate<?>> updates = new ArrayList<>();
PartPopulator( PageCache pageCache, FileSystemAbstraction fs, TemporalIndexFiles.FileLayout<KEY> fileLayout,
SchemaIndexProvider.Monitor monitor, IndexDescriptor descriptor, long indexId, IndexSamplingConfig samplingConfig )
{
super( pageCache, fs, fileLayout.indexFile, fileLayout.layout, monitor, descriptor, indexId, samplingConfig );
}
void batchUpdate( IndexEntryUpdate<?> update )
{
updates.add( update );
}
void applyUpdateBatch() throws IOException, IndexEntryConflictException
{
try
{
add( updates );
}
finally
{
updates = new ArrayList<>();
}
}
@Override
IndexReader newReader()
{
return new TemporalIndexPartReader<>( tree, layout, samplingConfig, descriptor );
}
@Override
public void includeSample( IndexEntryUpdate<?> update )
{
throw new UnsupportedOperationException( "please to not get here!" );
}
@Override
public IndexSample sampleResult()
{
throw new UnsupportedOperationException( "this sampling code needs a rewrite." );
}
}
static class PartFactory implements TemporalIndexCache.Factory<PartPopulator<?>, IOException>
{
private final PageCache pageCache;
private final FileSystemAbstraction fs;
private final TemporalIndexFiles temporalIndexFiles;
private final long indexId;
private final IndexDescriptor descriptor;
private final IndexSamplingConfig samplingConfig;
private final SchemaIndexProvider.Monitor monitor;
PartFactory( PageCache pageCache, FileSystemAbstraction fs, TemporalIndexFiles temporalIndexFiles, long indexId,
IndexDescriptor descriptor, IndexSamplingConfig samplingConfig, SchemaIndexProvider.Monitor monitor )
{
this.pageCache = pageCache;
this.fs = fs;
this.temporalIndexFiles = temporalIndexFiles;
this.indexId = indexId;
this.descriptor = descriptor;
this.samplingConfig = samplingConfig;
this.monitor = monitor;
}
@Override
public PartPopulator<?> newDate() throws IOException
{
return create( temporalIndexFiles.date() );
}
@Override
public PartPopulator<?> newLocalDateTime() throws IOException
{
return create( temporalIndexFiles.localDateTime() );
}
@Override
public PartPopulator<?> newZonedDateTime() throws IOException
{
return create( temporalIndexFiles.zonedDateTime() );
}
@Override
public PartPopulator<?> newLocalTime() throws IOException
{
return create( temporalIndexFiles.localTime() );
}
@Override
public PartPopulator<?> newZonedTime() throws IOException
{
return create( temporalIndexFiles.zonedTime() );
}
@Override
public PartPopulator<?> newDuration() throws IOException
{
throw new UnsupportedOperationException( "not implementedur still" );
}
private <KEY extends NativeSchemaKey> PartPopulator<KEY> create( TemporalIndexFiles.FileLayout<KEY> fileLayout ) throws IOException
{
PartPopulator<KEY> populator = new PartPopulator<>( pageCache, fs, fileLayout, monitor, descriptor, indexId, samplingConfig );
populator.create();
return populator;
}
}
}