-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
TransactionWriter.java
325 lines (283 loc) · 11 KB
/
TransactionWriter.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
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
/*
* Copyright (c) 2002-2015 "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.consistency.checking;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.neo4j.kernel.impl.store.PropertyStore;
import org.neo4j.kernel.impl.store.record.DynamicRecord;
import org.neo4j.kernel.impl.store.record.LabelTokenRecord;
import org.neo4j.kernel.impl.store.record.NeoStoreRecord;
import org.neo4j.kernel.impl.store.record.NodeRecord;
import org.neo4j.kernel.impl.store.record.PropertyKeyTokenRecord;
import org.neo4j.kernel.impl.store.record.PropertyRecord;
import org.neo4j.kernel.impl.store.record.RelationshipGroupRecord;
import org.neo4j.kernel.impl.store.record.RelationshipRecord;
import org.neo4j.kernel.impl.store.record.RelationshipTypeTokenRecord;
import org.neo4j.kernel.impl.store.record.SchemaRule;
import org.neo4j.kernel.impl.store.record.TokenRecord;
import org.neo4j.kernel.impl.transaction.TransactionRepresentation;
import org.neo4j.kernel.impl.transaction.command.Command;
import org.neo4j.kernel.impl.transaction.log.PhysicalTransactionRepresentation;
import static org.neo4j.kernel.impl.store.TokenStore.NAME_STORE_BLOCK_SIZE;
import static org.neo4j.kernel.impl.store.record.Record.NO_NEXT_PROPERTY;
import static org.neo4j.kernel.impl.store.record.Record.NO_PREV_RELATIONSHIP;
/**
* This class lives here instead of somewhere else in order to be able to access the {@link Command} implementations.
*
* @author Tobias Lindaaker
*/
public class TransactionWriter
{
private final List<Command> commands = new ArrayList<>();
public TransactionRepresentation representation( byte[] additionalHeader, int masterId, int authorId,
long startTime, long lastCommittedTx, long committedTime )
{
PhysicalTransactionRepresentation representation = new PhysicalTransactionRepresentation( commands );
representation.setHeader( additionalHeader, masterId, authorId, startTime, lastCommittedTx, committedTime, -1 );
return representation;
}
public void propertyKey( int id, String key, int... dynamicIds )
{
Command.PropertyKeyTokenCommand command = new Command.PropertyKeyTokenCommand();
command.init( withName( new PropertyKeyTokenRecord( id ), dynamicIds, key ) );
addCommand( command );
}
public void label( int id, String name, int... dynamicIds )
{
Command.LabelTokenCommand command = new Command.LabelTokenCommand();
command.init( withName( new LabelTokenRecord( id ), dynamicIds, name ) );
addCommand( command );
}
public void relationshipType( int id, String label, int... dynamicIds )
{
Command.RelationshipTypeTokenCommand command = new Command.RelationshipTypeTokenCommand();
command.init( withName( new RelationshipTypeTokenRecord( id ), dynamicIds, label ) );
addCommand( command );
}
public void update( NeoStoreRecord before, NeoStoreRecord after )
{
Command.NeoStoreCommand command = new Command.NeoStoreCommand();
command.init( before, after );
addCommand( command );
}
public void update( LabelTokenRecord labelToken )
{
Command.LabelTokenCommand command = new Command.LabelTokenCommand();
command.init( labelToken );
addCommand( command );
}
private void addCommand( Command command )
{
this.commands.add( command );
}
public void create( NodeRecord node )
{
node.setCreated();
update( new NodeRecord( node.getId(), false, NO_PREV_RELATIONSHIP.intValue(),
NO_NEXT_PROPERTY.intValue() ), node );
}
public void create( LabelTokenRecord labelToken )
{
labelToken.setCreated();
update( labelToken );
}
public void create( PropertyKeyTokenRecord token )
{
token.setCreated();
update( token );
}
public void create( RelationshipGroupRecord group )
{
group.setCreated();
update( new RelationshipGroupRecord( group.getId(), group.getType() ), group );
}
public void update( NodeRecord before, NodeRecord node )
{
node.setInUse( true );
add( before, node );
}
public void update( PropertyKeyTokenRecord token )
{
token.setInUse( true );
add( token );
}
public void delete( NodeRecord node )
{
node.setInUse( false );
add( node, new NodeRecord( node.getId(), false, NO_PREV_RELATIONSHIP.intValue(), NO_NEXT_PROPERTY.intValue() ) );
}
public void create( RelationshipRecord record )
{
record.setCreated();
update( new RelationshipRecord( record.getId() ), record );
}
public void delete( RelationshipGroupRecord group )
{
group.setInUse( false );
add( group, new RelationshipGroupRecord( group.getId(), group.getType() ) );
}
public void createSchema( Collection<DynamicRecord> beforeRecord, Collection<DynamicRecord> afterRecord,
SchemaRule rule )
{
for ( DynamicRecord record : afterRecord )
{
record.setCreated();
}
updateSchema( beforeRecord, afterRecord, rule );
}
public void updateSchema( Collection<DynamicRecord> beforeRecords, Collection<DynamicRecord> afterRecords,
SchemaRule rule )
{
for ( DynamicRecord record : afterRecords )
{
record.setInUse( true );
}
addSchema( beforeRecords, afterRecords, rule );
}
public void update( RelationshipRecord before, RelationshipRecord after )
{
after.setInUse( true );
add( before, after );
}
public void update( RelationshipGroupRecord before, RelationshipGroupRecord after )
{
after.setInUse( true );
add( before, after );
}
public void delete( RelationshipRecord record )
{
record.setInUse( false );
add( record, new RelationshipRecord( record.getId() ) );
}
public void create( PropertyRecord property )
{
property.setCreated();
PropertyRecord before = new PropertyRecord( property.getLongId() );
if ( property.isNodeSet() )
{
before.setNodeId( property.getNodeId() );
}
if ( property.isRelSet() )
{
before.setRelId( property.getRelId() );
}
update( before, property );
}
public void update( PropertyRecord before, PropertyRecord after )
{
after.setInUse(true);
add( before, after );
}
public void delete( PropertyRecord before, PropertyRecord after )
{
after.setInUse(false);
add( before, after );
}
// Internals
private void addSchema( Collection<DynamicRecord> beforeRecords, Collection<DynamicRecord> afterRecords,
SchemaRule rule )
{
Command.SchemaRuleCommand command = new Command.SchemaRuleCommand();
command.init( beforeRecords, afterRecords, rule );
addCommand( command );
}
public void add( NodeRecord before, NodeRecord after )
{
Command.NodeCommand command = new Command.NodeCommand();
command.init( before, after );
addCommand( command );
}
public void add( RelationshipRecord before, RelationshipRecord after )
{
Command.RelationshipCommand command = new Command.RelationshipCommand();
command.init( before, after );
addCommand( command );
}
public void add( RelationshipGroupRecord before, RelationshipGroupRecord after )
{
Command.RelationshipGroupCommand command = new Command.RelationshipGroupCommand();
command.init( before, after );
addCommand( command );
}
public void add( PropertyRecord before, PropertyRecord property )
{
Command.PropertyCommand command = new Command.PropertyCommand();
command.init( before, property );
addCommand( command );
}
public void add( RelationshipTypeTokenRecord record )
{
Command.RelationshipTypeTokenCommand command = new Command.RelationshipTypeTokenCommand();
command.init( record );
addCommand( command );
}
public void add( PropertyKeyTokenRecord record )
{
Command.PropertyKeyTokenCommand command = new Command.PropertyKeyTokenCommand();
command.init( record );
addCommand( command );
}
public void add( NeoStoreRecord before, NeoStoreRecord after )
{
Command.NeoStoreCommand command = new Command.NeoStoreCommand();
command.init( before, after );
addCommand( command );
}
public void incrementNodeCount( int labelId, long delta )
{
addCommand( new Command.NodeCountsCommand().init( labelId, delta ) );
}
public void incrementRelationshipCount( int startLabelId, int typeId, int endLabelId, long delta )
{
addCommand( new Command.RelationshipCountsCommand().init( startLabelId, typeId, endLabelId, delta ) );
}
private static <T extends TokenRecord> T withName( T record, int[] dynamicIds, String name )
{
if ( dynamicIds == null || dynamicIds.length == 0 )
{
throw new IllegalArgumentException( "No dynamic records for storing the name." );
}
record.setInUse( true );
byte[] data = PropertyStore.encodeString( name );
if ( data.length > dynamicIds.length * NAME_STORE_BLOCK_SIZE )
{
throw new IllegalArgumentException(
String.format( "[%s] is too long to fit in %d blocks", name, dynamicIds.length ) );
}
else if ( data.length <= (dynamicIds.length - 1) * NAME_STORE_BLOCK_SIZE )
{
throw new IllegalArgumentException(
String.format( "[%s] is to short to fill %d blocks", name, dynamicIds.length ) );
}
for ( int i = 0; i < dynamicIds.length; i++ )
{
byte[] part = new byte[Math.min( NAME_STORE_BLOCK_SIZE, data.length - i * NAME_STORE_BLOCK_SIZE )];
System.arraycopy( data, i * NAME_STORE_BLOCK_SIZE, part, 0, part.length );
DynamicRecord dynamicRecord = new DynamicRecord( dynamicIds[i] );
dynamicRecord.setInUse( true );
dynamicRecord.setData( part );
dynamicRecord.setCreated();
record.addNameRecord( dynamicRecord );
}
record.setNameId( dynamicIds[0] );
return record;
}
}