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
|
/*******************************************************************************
* Copyright (c) 2010-2016, Andras Szabolcs Nagy and Daniel Varro
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-v20.html.
*
* SPDX-License-Identifier: EPL-2.0
*******************************************************************************/
package org.eclipse.viatra.dse.base;
import java.util.Collection;
import java.util.HashMap;
import java.util.concurrent.ConcurrentHashMap;
import org.eclipse.viatra.dse.api.DSEException;
import org.eclipse.viatra.transformation.runtime.emf.rules.batch.BatchTransformationRule;
public enum DseIdPoolHelper {
INSTANCE;
public static interface IGetRuleExecutions {
int getRuleExecutions(BatchTransformationRule<?, ?> rule);
}
public static class IdProvider {
private final BatchTransformationRule<?, ?> rule;
private IGetRuleExecutions getRuleExecutions;
public IdProvider(IGetRuleExecutions getRuleExecutions, BatchTransformationRule<?, ?> rule) {
this.getRuleExecutions = getRuleExecutions;
this.rule = rule;
}
public int getId() {
return getRuleExecutions.getRuleExecutions(rule);
}
}
private ConcurrentHashMap<Thread, HashMap<BatchTransformationRule<?, ?>, IdProvider>> idProviders = new ConcurrentHashMap<>();
public int getId(BatchTransformationRule<?, ?> rule) {
Thread currentThread = Thread.currentThread();
HashMap<BatchTransformationRule<?, ?>, IdProvider> ruleMap = idProviders.get(currentThread);
if (ruleMap == null) {
throw new DSEException("There is no registered id provider");
}
IdProvider idProvider = ruleMap.get(rule);
return idProvider.getId();
}
public void registerRules(IGetRuleExecutions getRuleExecutions, Collection<BatchTransformationRule<?, ?>> rules) {
Thread currentThread = Thread.currentThread();
HashMap<BatchTransformationRule<?, ?>, IdProvider> ruleMap = new HashMap<>();
for (BatchTransformationRule<?, ?> rule : rules) {
IdProvider idProvider = new IdProvider(getRuleExecutions, rule);
ruleMap.put(rule, idProvider);
}
idProviders.put(currentThread, ruleMap);
}
public void disposeByThread() {
Thread currentThread = Thread.currentThread();
idProviders.remove(currentThread);
}
}
|
