-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
NeoStoresRule.java
186 lines (165 loc) · 6.2 KB
/
NeoStoresRule.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
/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.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.test.rule;
import java.io.File;
import java.io.IOException;
import java.util.function.Function;
import org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction;
import org.neo4j.io.IOUtils;
import org.neo4j.io.fs.FileSystemAbstraction;
import org.neo4j.io.pagecache.PageCache;
import org.neo4j.io.pagecache.tracing.cursor.PageCursorTracerSupplier;
import org.neo4j.io.pagecache.tracing.cursor.context.EmptyVersionContextSupplier;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.kernel.impl.pagecache.ConfiguringPageCacheFactory;
import org.neo4j.kernel.impl.store.NeoStores;
import org.neo4j.kernel.impl.store.StoreFactory;
import org.neo4j.kernel.impl.store.StoreType;
import org.neo4j.kernel.impl.store.format.RecordFormatSelector;
import org.neo4j.kernel.impl.store.format.RecordFormats;
import org.neo4j.kernel.impl.store.id.DefaultIdGeneratorFactory;
import org.neo4j.kernel.impl.store.id.IdGeneratorFactory;
import org.neo4j.logging.Log;
import org.neo4j.logging.NullLog;
import org.neo4j.logging.NullLogProvider;
import static org.neo4j.helpers.collection.MapUtil.stringMap;
import static org.neo4j.io.pagecache.tracing.PageCacheTracer.NULL;
/**
* Rule for opening a {@link NeoStores}.
*/
public class NeoStoresRule extends ExternalResource
{
private final Class<?> testClass;
private NeoStores neoStores;
// Custom components which are managed by this rule if user doesn't supply them
private EphemeralFileSystemAbstraction ruleFs;
private PageCache rulePageCache;
private final StoreType[] stores;
public NeoStoresRule( Class<?> testClass, StoreType... stores )
{
this.testClass = testClass;
this.stores = stores;
}
public Builder builder()
{
return new Builder();
}
private NeoStores open( FileSystemAbstraction fs, PageCache pageCache, RecordFormats format,
Function<FileSystemAbstraction,IdGeneratorFactory> idGeneratorFactory, String... config ) throws IOException
{
assert neoStores == null : "Already opened";
TestDirectory testDirectory = TestDirectory.testDirectory( fs );
testDirectory.prepareDirectory( testClass, null );
File databaseDir = testDirectory.databaseDir();
Config configuration = configOf( config );
StoreFactory storeFactory = new StoreFactory( databaseDir, configuration, idGeneratorFactory.apply( fs ),
pageCache, fs, format, NullLogProvider.getInstance(), EmptyVersionContextSupplier.EMPTY );
return neoStores = stores.length == 0
? storeFactory.openAllNeoStores( true )
: storeFactory.openNeoStores( true, stores );
}
private static Config configOf( String... config )
{
return Config.defaults( stringMap( config ) );
}
@Override
protected void after( boolean successful ) throws Throwable
{
IOUtils.closeAll( neoStores, rulePageCache );
neoStores = null;
if ( ruleFs != null )
{
ruleFs.close();
}
}
private static PageCache getOrCreatePageCache( Config config, FileSystemAbstraction fs )
{
Log log = NullLog.getInstance();
ConfiguringPageCacheFactory pageCacheFactory = new ConfiguringPageCacheFactory( fs, config, NULL,
PageCursorTracerSupplier.NULL, log, EmptyVersionContextSupplier.EMPTY );
return pageCacheFactory.getOrCreatePageCache();
}
public class Builder
{
private FileSystemAbstraction fs;
private String[] config;
private RecordFormats format;
private PageCache pageCache;
private Function<FileSystemAbstraction,IdGeneratorFactory> idGeneratorFactory;
public Builder with( FileSystemAbstraction fs )
{
this.fs = fs;
return this;
}
public Builder with( String... config )
{
this.config = config;
return this;
}
public Builder with( RecordFormats format )
{
this.format = format;
return this;
}
public Builder with( PageCache pageCache )
{
this.pageCache = pageCache;
return this;
}
public Builder with( Function<FileSystemAbstraction,IdGeneratorFactory> idGeneratorFactory )
{
this.idGeneratorFactory = idGeneratorFactory;
return this;
}
public NeoStores build() throws IOException
{
if ( fs == null )
{
fs = ruleFs();
}
if ( config == null )
{
config = new String[0];
}
Config dbConfig = configOf( config );
if ( pageCache == null )
{
pageCache = rulePageCache( dbConfig, fs );
}
if ( format == null )
{
format = RecordFormatSelector.selectForConfig( dbConfig, NullLogProvider.getInstance() );
}
if ( idGeneratorFactory == null )
{
idGeneratorFactory = DefaultIdGeneratorFactory::new;
}
return open( fs, pageCache, format, idGeneratorFactory, config );
}
}
private PageCache rulePageCache( Config dbConfig, FileSystemAbstraction fs )
{
return rulePageCache = getOrCreatePageCache( dbConfig, fs );
}
private EphemeralFileSystemAbstraction ruleFs()
{
return ruleFs = new EphemeralFileSystemAbstraction();
}
}