diff options
Diffstat (limited to 'Solvers/VIATRA-Solver/org.eclipse.viatra.dse/src/org/eclipse/viatra/dse/designspace/api/DesignSpace.java')
-rw-r--r-- | Solvers/VIATRA-Solver/org.eclipse.viatra.dse/src/org/eclipse/viatra/dse/designspace/api/DesignSpace.java | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/Solvers/VIATRA-Solver/org.eclipse.viatra.dse/src/org/eclipse/viatra/dse/designspace/api/DesignSpace.java b/Solvers/VIATRA-Solver/org.eclipse.viatra.dse/src/org/eclipse/viatra/dse/designspace/api/DesignSpace.java new file mode 100644 index 00000000..bc0f08d4 --- /dev/null +++ b/Solvers/VIATRA-Solver/org.eclipse.viatra.dse/src/org/eclipse/viatra/dse/designspace/api/DesignSpace.java | |||
@@ -0,0 +1,106 @@ | |||
1 | /******************************************************************************* | ||
2 | * Copyright (c) 2010-2016, Andras Szabolcs Nagy and Daniel Varro | ||
3 | * This program and the accompanying materials are made available under the | ||
4 | * terms of the Eclipse Public License v. 2.0 which is available at | ||
5 | * http://www.eclipse.org/legal/epl-v20.html. | ||
6 | * | ||
7 | * SPDX-License-Identifier: EPL-2.0 | ||
8 | *******************************************************************************/ | ||
9 | package org.eclipse.viatra.dse.designspace.api; | ||
10 | |||
11 | import java.util.ArrayList; | ||
12 | import java.util.Collection; | ||
13 | import java.util.Collections; | ||
14 | import java.util.HashMap; | ||
15 | import java.util.HashSet; | ||
16 | import java.util.List; | ||
17 | import java.util.Map; | ||
18 | import java.util.Random; | ||
19 | import java.util.Set; | ||
20 | |||
21 | public class DesignSpace implements IDesignSpace { | ||
22 | |||
23 | Set<Object> statesView; | ||
24 | |||
25 | Set<Object> rootStates; | ||
26 | Set<Object> rootStatesView; | ||
27 | |||
28 | Map<Object, List<Object>> statesAndActivations; | ||
29 | |||
30 | Random random = new Random(); | ||
31 | |||
32 | public DesignSpace() { | ||
33 | rootStates = new HashSet<>(); | ||
34 | rootStatesView = Collections.unmodifiableSet(rootStates); | ||
35 | |||
36 | statesAndActivations = new HashMap<>(); | ||
37 | statesView = statesAndActivations.keySet(); | ||
38 | } | ||
39 | |||
40 | @Override | ||
41 | public synchronized Collection<Object> getStates() { | ||
42 | return statesView; | ||
43 | } | ||
44 | |||
45 | @Override | ||
46 | public synchronized Collection<Object> getRoots() { | ||
47 | return rootStatesView; | ||
48 | } | ||
49 | |||
50 | @Override | ||
51 | public synchronized void addState(Object sourceStateId, Object firedActivationId, Object newStateId) { | ||
52 | |||
53 | List<Object> activationIds = statesAndActivations.get(newStateId); | ||
54 | |||
55 | if (activationIds == null) { | ||
56 | activationIds = new ArrayList<Object>(); | ||
57 | statesAndActivations.put(newStateId, activationIds); | ||
58 | |||
59 | if (sourceStateId == null) { | ||
60 | rootStates.add(newStateId); | ||
61 | return; | ||
62 | } | ||
63 | } | ||
64 | |||
65 | activationIds = statesAndActivations.get(sourceStateId); | ||
66 | |||
67 | if (activationIds == null) { | ||
68 | activationIds = new ArrayList<Object>(); | ||
69 | activationIds.add(firedActivationId); | ||
70 | statesAndActivations.put(sourceStateId, activationIds); | ||
71 | } else { | ||
72 | activationIds.add(firedActivationId); | ||
73 | } | ||
74 | } | ||
75 | |||
76 | public synchronized boolean isTraversed(Object stateId) { | ||
77 | return statesAndActivations.containsKey(stateId); | ||
78 | } | ||
79 | |||
80 | @Override | ||
81 | public synchronized Collection<Object> getActivationIds(Object stateId) { | ||
82 | return statesAndActivations.get(stateId); | ||
83 | } | ||
84 | |||
85 | @Override | ||
86 | public synchronized Object getRandomActivationId(Object stateId) { | ||
87 | List<Object> activations = statesAndActivations.get(stateId); | ||
88 | int index = random.nextInt(activations.size()); | ||
89 | return activations.get(index); | ||
90 | } | ||
91 | |||
92 | @Override | ||
93 | public synchronized long getNumberOfStates() { | ||
94 | return statesAndActivations.size(); | ||
95 | } | ||
96 | |||
97 | @Override | ||
98 | public synchronized long getNumberOfTransitions() { | ||
99 | int numberOfTransitions = 0; | ||
100 | for (List<Object> activations : statesAndActivations.values()) { | ||
101 | numberOfTransitions += activations.size(); | ||
102 | } | ||
103 | return numberOfTransitions; | ||
104 | } | ||
105 | |||
106 | } | ||