-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
OnDemandJobScheduler.java
131 lines (113 loc) · 3.37 KB
/
OnDemandJobScheduler.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
/*
* 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.test;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import org.neo4j.kernel.lifecycle.LifecycleAdapter;
import org.neo4j.scheduler.JobScheduler;
public class OnDemandJobScheduler extends LifecycleAdapter implements JobScheduler
{
private List<Runnable> jobs = new CopyOnWriteArrayList<>();
private final boolean removeJobsAfterExecution;
public OnDemandJobScheduler()
{
this( true );
}
public OnDemandJobScheduler( boolean removeJobsAfterExecution )
{
this.removeJobsAfterExecution = removeJobsAfterExecution;
}
@Override
public void setTopLevelGroupName( String name )
{
}
@Override
public Executor executor( Group group )
{
return command -> jobs.add( command );
}
@Override
public ThreadFactory threadFactory( Group group )
{
throw new UnsupportedOperationException();
}
@Override
public ExecutorService workStealingExecutor( Group group, int parallelism )
{
throw new UnsupportedOperationException();
}
@Override
public JobHandle schedule( Group group, Runnable job )
{
jobs.add( job );
return new OnDemandJobHandle();
}
@Override
public JobHandle schedule( Group group, Runnable job, long initialDelay, TimeUnit timeUnit )
{
jobs.add( job );
return new OnDemandJobHandle();
}
@Override
public JobHandle scheduleRecurring( Group group, Runnable runnable, long period, TimeUnit timeUnit )
{
jobs.add( runnable );
return new OnDemandJobHandle();
}
@Override
public JobHandle scheduleRecurring( Group group, Runnable runnable, long initialDelay,
long period, TimeUnit timeUnit )
{
jobs.add( runnable );
return new OnDemandJobHandle();
}
public Runnable getJob()
{
return jobs.size() > 0 ? jobs.get( 0 ) : null;
}
public void runJob()
{
for ( Runnable job : jobs )
{
job.run();
if ( removeJobsAfterExecution )
{
jobs.remove( job );
}
}
}
private class OnDemandJobHandle implements JobHandle
{
@Override
public void cancel( boolean mayInterruptIfRunning )
{
jobs.clear();
}
@Override
public void waitTermination()
{
// on demand
}
}
}