-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
IndexSamplingManagerBean.java
144 lines (128 loc) · 5.01 KB
/
IndexSamplingManagerBean.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
/*
* Copyright (c) 2002-2016 "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 Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.management.impl;
import javax.management.NotCompliantMBeanException;
import org.neo4j.helpers.Service;
import org.neo4j.jmx.impl.ManagementBeanProvider;
import org.neo4j.jmx.impl.ManagementData;
import org.neo4j.jmx.impl.Neo4jMBean;
import org.neo4j.kernel.NeoStoreDataSource;
import org.neo4j.kernel.api.index.IndexDescriptor;
import org.neo4j.kernel.impl.api.index.IndexingService;
import org.neo4j.kernel.impl.api.index.sampling.IndexSamplingMode;
import org.neo4j.kernel.impl.api.store.StoreReadLayer;
import org.neo4j.kernel.impl.transaction.state.DataSourceManager;
import org.neo4j.management.IndexSamplingManager;
@Service.Implementation( ManagementBeanProvider.class )
public final class IndexSamplingManagerBean extends ManagementBeanProvider
{
public IndexSamplingManagerBean()
{
super( IndexSamplingManager.class );
}
@Override
protected Neo4jMBean createMBean( ManagementData management ) throws NotCompliantMBeanException
{
return new IndexSamplingManagerImpl( management );
}
@Override
protected Neo4jMBean createMXBean( ManagementData management ) throws NotCompliantMBeanException
{
return new IndexSamplingManagerImpl( management, true );
}
private static class IndexSamplingManagerImpl extends Neo4jMBean implements IndexSamplingManager
{
private final StoreAccess access;
IndexSamplingManagerImpl( ManagementData management ) throws NotCompliantMBeanException
{
super( management );
this.access = access( management );
}
IndexSamplingManagerImpl( ManagementData management, boolean mxBean )
{
super( management, mxBean );
this.access = access( management );
}
@Override
public void triggerIndexSampling( String labelKey, String propertyKey, boolean forceSample )
{
access.triggerIndexSampling( labelKey, propertyKey, forceSample );
}
}
private static StoreAccess access( ManagementData management )
{
StoreAccess access = new StoreAccess();
management.getKernelData().graphDatabase().getDependencyResolver().resolveDependency( DataSourceManager.class )
.addListener( access );
return access;
}
static class StoreAccess implements DataSourceManager.Listener
{
private static class State
{
final StoreReadLayer storeLayer;
final IndexingService indexingService;
State( StoreReadLayer storeLayer, IndexingService indexingService )
{
this.storeLayer = storeLayer;
this.indexingService = indexingService;
}
}
private volatile State state;
@Override
public void registered( NeoStoreDataSource dataSource )
{
state = new State( dataSource.getStoreLayer(), dataSource.getIndexService());
}
@Override
public void unregistered( NeoStoreDataSource dataSource )
{
state = null;
}
public void triggerIndexSampling( String labelKey, String propertyKey, boolean forceSample )
{
int labelKeyId = -1, propertyKeyId = -1;
State state = this.state;
if ( state != null )
{
labelKeyId = state.storeLayer.labelGetForName( labelKey );
propertyKeyId = state.storeLayer.propertyKeyGetForName( propertyKey );
}
if ( labelKeyId == -1 || propertyKeyId == -1 )
{
throw new IllegalArgumentException( "No property or label key was found associated with " +
propertyKey + " and " + labelKey );
}
state.indexingService.triggerIndexSampling( new IndexDescriptor( labelKeyId, propertyKeyId ),
getIndexSamplingMode( forceSample ) );
}
private IndexSamplingMode getIndexSamplingMode( boolean forceSample )
{
if ( forceSample )
{
return IndexSamplingMode.TRIGGER_REBUILD_ALL;
}
else
{
return IndexSamplingMode.TRIGGER_REBUILD_UPDATED;
}
}
}
}