blob: 586a8d7a692f7901819fa4eb5a7bdf0cfcb1fc4f (
plain) (
blame)
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
|
/*
* SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.store.dse.propagation.impl;
import tools.refinery.store.dse.propagation.BoundPropagator;
import tools.refinery.store.dse.propagation.PropagationAdapter;
import tools.refinery.store.dse.propagation.PropagationResult;
import tools.refinery.store.dse.propagation.PropagationStoreAdapter;
import tools.refinery.store.model.Model;
class PropagationAdapterImpl implements PropagationAdapter {
private final Model model;
private final PropagationStoreAdapterImpl storeAdapter;
private final BoundPropagator[] boundPropagators;
public PropagationAdapterImpl(Model model, PropagationStoreAdapterImpl storeAdapter) {
this.model = model;
this.storeAdapter = storeAdapter;
var propagators = storeAdapter.getPropagators();
boundPropagators = new BoundPropagator[propagators.size()];
for (int i = 0; i < boundPropagators.length; i++) {
boundPropagators[i] = propagators.get(i).bindToModel(model);
}
}
@Override
public PropagationResult propagate() {
PropagationResult result = PropagationResult.UNCHANGED;
PropagationResult lastResult;
do {
lastResult = propagateOne();
result = result.andThen(lastResult);
} while (lastResult.isChanged());
return result;
}
private PropagationResult propagateOne() {
PropagationResult result = PropagationResult.UNCHANGED;
for (int i = 0; i < boundPropagators.length; i++) {
var lastResult = propagateUntilFixedPoint(i);
result = result.andThen(lastResult);
if (result.isRejected()) {
break;
}
}
return result;
}
private PropagationResult propagateUntilFixedPoint(int propagatorIndex) {
var propagator = boundPropagators[propagatorIndex];
PropagationResult result = PropagationResult.UNCHANGED;
PropagationResult lastResult;
do {
lastResult = propagator.propagateOne();
result = result.andThen(lastResult);
} while (lastResult.isChanged());
return result;
}
@Override
public Model getModel() {
return model;
}
@Override
public PropagationStoreAdapter getStoreAdapter() {
return storeAdapter;
}
}
|
