-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
ThreadedTransaction.java
168 lines (152 loc) · 6.32 KB
/
ThreadedTransaction.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
/*
* Copyright (c) 2002-2017 "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.server.security.enterprise.auth;
import java.util.Arrays;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import org.neo4j.graphdb.Result;
import org.neo4j.graphdb.TransactionTerminatedException;
import org.neo4j.helpers.Exceptions;
import org.neo4j.kernel.api.KernelTransaction;
import org.neo4j.kernel.impl.coreapi.InternalTransaction;
import org.neo4j.test.DoubleLatch;
import org.neo4j.test.NamedFunction;
import org.neo4j.test.rule.concurrent.ThreadingRule;
import static junit.framework.TestCase.fail;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.instanceOf;
class ThreadedTransaction<S>
{
private volatile Future<Throwable> done = null;
private final NeoInteractionLevel<S> neo;
private final DoubleLatch latch;
ThreadedTransaction( NeoInteractionLevel<S> neo, DoubleLatch latch )
{
this.neo = neo;
this.latch = latch;
}
String executeCreateNode( ThreadingRule threading, S subject )
{
final String query = "CREATE (:Test { name: '" + neo.nameOf( subject ) + "-node'})";
return execute( threading, subject, query );
}
String execute( ThreadingRule threading, S subject, String query )
{
return doExecute( threading, subject, KernelTransaction.Type.explicit, false, query )[0];
}
String[] execute( ThreadingRule threading, S subject, String... queries )
{
return doExecute( threading, subject, KernelTransaction.Type.explicit, false, queries );
}
String executeEarly( ThreadingRule threading, S subject, KernelTransaction.Type txType, String query )
{
return doExecute( threading, subject, txType, true, query )[0];
}
String[] executeEarly( ThreadingRule threading, S subject, KernelTransaction.Type txType, String... queries )
{
return doExecute( threading, subject, txType, true, queries );
}
private String[] doExecute(
ThreadingRule threading, S subject, KernelTransaction.Type txType, boolean startEarly, String... queries )
{
NamedFunction<S, Throwable> startTransaction =
new NamedFunction<S, Throwable>( "threaded-transaction-" + Arrays.hashCode( queries ) )
{
@Override
public Throwable apply( S subject )
{
try ( InternalTransaction tx = neo.beginLocalTransactionAsUser( subject, txType ) )
{
Result result = null;
try
{
if ( startEarly )
{
latch.start();
}
for ( String query : queries )
{
if ( result != null )
{
result.close();
}
result = neo.getLocalGraph().execute( query );
}
if ( !startEarly )
{
latch.startAndWaitForAllToStart();
}
}
finally
{
if ( !startEarly )
{
latch.start();
}
latch.finishAndWaitForAllToFinish();
}
result.close();
tx.success();
return null;
}
catch (Throwable t)
{
return t;
}
}
};
done = threading.execute( startTransaction, subject );
return queries;
}
void closeAndAssertSuccess() throws Throwable
{
Throwable exceptionInOtherThread = join();
if ( exceptionInOtherThread != null )
{
throw new AssertionError( "Expected no exception in ThreadCreate, but got one.", exceptionInOtherThread );
}
}
void closeAndAssertExplicitTermination() throws Throwable
{
Throwable exceptionInOtherThread = join();
if ( exceptionInOtherThread == null )
{
fail( "Expected explicit TransactionTerminatedException in the threaded transaction, " +
"but no exception was raised" );
}
assertThat( Exceptions.stringify( exceptionInOtherThread ),
exceptionInOtherThread.getMessage(), containsString( "Explicitly terminated by the user.") );
}
void closeAndAssertSomeTermination() throws Throwable
{
Throwable exceptionInOtherThread = join();
if ( exceptionInOtherThread == null )
{
fail( "Expected a TransactionTerminatedException in the threaded transaction, but no exception was raised" );
}
assertThat( Exceptions.stringify( exceptionInOtherThread ),
exceptionInOtherThread, instanceOf( TransactionTerminatedException.class ) );
}
private Throwable join() throws ExecutionException, InterruptedException
{
return done.get();
}
}