diff options
Diffstat (limited to 'Solvers/VIATRA-Solver/org.eclipse.viatra.dse/src/org/eclipse/viatra/dse/statecoding/TheStateCoder.java')
-rw-r--r-- | Solvers/VIATRA-Solver/org.eclipse.viatra.dse/src/org/eclipse/viatra/dse/statecoding/TheStateCoder.java | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/Solvers/VIATRA-Solver/org.eclipse.viatra.dse/src/org/eclipse/viatra/dse/statecoding/TheStateCoder.java b/Solvers/VIATRA-Solver/org.eclipse.viatra.dse/src/org/eclipse/viatra/dse/statecoding/TheStateCoder.java new file mode 100644 index 00000000..4601ff08 --- /dev/null +++ b/Solvers/VIATRA-Solver/org.eclipse.viatra.dse/src/org/eclipse/viatra/dse/statecoding/TheStateCoder.java | |||
@@ -0,0 +1,215 @@ | |||
1 | /******************************************************************************* | ||
2 | * Copyright (c) 2010-2015, 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.statecoding; | ||
10 | |||
11 | import java.util.Arrays; | ||
12 | import java.util.Collection; | ||
13 | import java.util.List; | ||
14 | import java.util.Set; | ||
15 | |||
16 | import org.eclipse.emf.common.notify.Notifier; | ||
17 | import org.eclipse.emf.common.util.EList; | ||
18 | import org.eclipse.emf.ecore.EAttribute; | ||
19 | import org.eclipse.emf.ecore.EObject; | ||
20 | import org.eclipse.viatra.dse.api.DSEException; | ||
21 | import org.eclipse.viatra.dse.statecode.IStateCoder; | ||
22 | import org.eclipse.viatra.query.runtime.api.IPatternMatch; | ||
23 | |||
24 | public class TheStateCoder implements IStateCoder { | ||
25 | |||
26 | private StatecodingDependencyGraph sdg; | ||
27 | private IObjectsProvider objectProvider; | ||
28 | |||
29 | public TheStateCoder(StatecodingDependencyGraph sdg, IObjectsProvider objectProvider) { | ||
30 | this.sdg = sdg; | ||
31 | this.objectProvider = objectProvider; | ||
32 | } | ||
33 | |||
34 | @Override | ||
35 | public void init(Notifier notifier) { | ||
36 | // TODO checks | ||
37 | // TODO node sorting based on traversal - in factory | ||
38 | |||
39 | // this.notifier = notifier; | ||
40 | // try { | ||
41 | // EMFScope scope = new EMFScope(notifier); | ||
42 | // queryEngine = ViatraQueryEngine.on(scope); | ||
43 | // } catch (ViatraQueryException e1) { | ||
44 | // logger.error("Failed to initialize VIATRA Query engine on the given notifier", e1); | ||
45 | // throw new DSEException("Failed to initialize VIATRA Query engine on the given notifier"); | ||
46 | // } | ||
47 | |||
48 | objectProvider.init(notifier, sdg); | ||
49 | } | ||
50 | |||
51 | @Override | ||
52 | public String createStateCode() { | ||
53 | |||
54 | StringBuilder sb = new StringBuilder(); | ||
55 | |||
56 | // TODO sort | ||
57 | for (StatecodingNode node : sdg.getNodes()) { | ||
58 | sb.append(node.getClazz().getName()); | ||
59 | sb.append(':'); | ||
60 | sb.append(addStateCode(node)); | ||
61 | sb.append('|'); | ||
62 | } | ||
63 | sb.deleteCharAt(sb.length() - 1); | ||
64 | |||
65 | return sb.toString(); | ||
66 | |||
67 | } | ||
68 | |||
69 | @Override | ||
70 | public Object createActivationCode(IPatternMatch match) { | ||
71 | // TODO root object | ||
72 | // TODO parameterless? | ||
73 | |||
74 | int i = 0; | ||
75 | StringBuilder sb = new StringBuilder(); | ||
76 | Object object; | ||
77 | do { | ||
78 | object = match.get(i++); | ||
79 | if (object != null) { | ||
80 | if (object instanceof EObject) { | ||
81 | EObject eObject = (EObject) object; | ||
82 | sb.append(addStateCode(sdg.getNodeByClass(eObject.eClass()), eObject)); | ||
83 | } else { | ||
84 | // TODO toString or not to toString | ||
85 | } | ||
86 | } | ||
87 | } while (object != null); | ||
88 | |||
89 | return sb.toString(); | ||
90 | } | ||
91 | |||
92 | public String addStateCode(StatecodingNode node, EObject eObject) { | ||
93 | StringBuilder sb = new StringBuilder(); | ||
94 | |||
95 | Set<EAttribute> attributes = node.getAttributes(); | ||
96 | if (!attributes.isEmpty()) { | ||
97 | for (EAttribute eAttribute : attributes) { | ||
98 | // attributes are sorted | ||
99 | // TODO handle collection | ||
100 | sb.append(eObject.eGet(eAttribute)); | ||
101 | sb.append(';'); | ||
102 | } | ||
103 | sb.deleteCharAt(sb.length() - 1); | ||
104 | } | ||
105 | |||
106 | List<StatecodingDependency> dependencies = node.getStatecodingDependencies(); | ||
107 | int dependenciesSize = dependencies.size(); | ||
108 | if (dependenciesSize > 0) { | ||
109 | String[] codeParts = new String[dependenciesSize]; | ||
110 | int i = 0; | ||
111 | for (StatecodingDependency dependency : dependencies) { | ||
112 | String code = addStateCodeFromDependency(dependency, eObject); | ||
113 | codeParts[i++] = code; | ||
114 | } | ||
115 | Arrays.sort(codeParts); | ||
116 | |||
117 | sb.append("("); | ||
118 | sb.append(codeParts[0]); | ||
119 | for (i = 1; i < codeParts.length; i++) { | ||
120 | sb.append(';'); | ||
121 | sb.append(codeParts[i]); | ||
122 | } | ||
123 | sb.append(")"); | ||
124 | } | ||
125 | return sb.toString(); | ||
126 | } | ||
127 | |||
128 | public String addStateCode(StatecodingNode node) { | ||
129 | Collection<EObject> eObjects = objectProvider.getEObjects(node.getClazz()); | ||
130 | int size = eObjects.size(); | ||
131 | |||
132 | if (size > 0) { | ||
133 | String[] codeParts = new String[size]; | ||
134 | int i = 0; | ||
135 | for (EObject eObject : eObjects) { | ||
136 | String code = addStateCode(node, eObject); | ||
137 | codeParts[i++] = code; | ||
138 | } | ||
139 | Arrays.sort(codeParts); | ||
140 | |||
141 | StringBuilder sb = new StringBuilder(); | ||
142 | sb.append(codeParts[0]); | ||
143 | for (i = 1; i < codeParts.length; i++) { | ||
144 | sb.append(';'); | ||
145 | sb.append(codeParts[i]); | ||
146 | } | ||
147 | return sb.toString(); | ||
148 | } | ||
149 | |||
150 | return ""; | ||
151 | } | ||
152 | |||
153 | public String addStateCodeFromDependency(StatecodingDependency sd, EObject eObject) { | ||
154 | |||
155 | if (sd.type.equals(StatecodingDependencyType.NORMAL)) { | ||
156 | |||
157 | Object eReferred = eObject.eGet(sd.eReference); | ||
158 | if (eReferred == null) { | ||
159 | return ""; | ||
160 | } else if (eReferred instanceof EList<?>) { | ||
161 | EList<?> refferedList = (EList<?>) eReferred; | ||
162 | // TODO test | ||
163 | if (!refferedList.isEmpty()) { | ||
164 | |||
165 | String[] codeParts = new String[refferedList.size()]; | ||
166 | int i = 0; | ||
167 | for (Object referredEObject : refferedList) { | ||
168 | String code = addStateCode(sd.node, (EObject) referredEObject); | ||
169 | codeParts[i++] = code; | ||
170 | } | ||
171 | Arrays.sort(codeParts); | ||
172 | |||
173 | StringBuilder sb = new StringBuilder(); | ||
174 | sb.append('['); | ||
175 | sb.append(codeParts[0]); | ||
176 | for (i = 1; i < codeParts.length; i++) { | ||
177 | sb.append(';'); | ||
178 | sb.append(codeParts[i]); | ||
179 | } | ||
180 | sb.append(']'); | ||
181 | return sb.toString(); | ||
182 | |||
183 | } | ||
184 | } else if (eReferred instanceof EObject) { | ||
185 | return addStateCode(sd.node, (EObject) eReferred); | ||
186 | } else { | ||
187 | throw new DSEException("The EObject " + eObject.toString() + " does not have a feature " | ||
188 | + eReferred.toString() + "."); | ||
189 | } | ||
190 | |||
191 | } else { | ||
192 | for (EObject dependentEObject : objectProvider.getEObjects(sd.node.getClazz())) { | ||
193 | Object eReferred = dependentEObject.eGet(sd.eReference); | ||
194 | if (eReferred == null) { | ||
195 | continue; | ||
196 | } else if (eReferred instanceof EList<?>) { | ||
197 | // TODO this is slow, use VIATRA Query | ||
198 | for (Object referredEObject : ((EList<?>) eReferred)) { | ||
199 | if (referredEObject.equals(eObject)) { | ||
200 | return addStateCode(sd.node, (EObject) dependentEObject); | ||
201 | } | ||
202 | } | ||
203 | } else if (eReferred.equals(eObject)) { | ||
204 | // Probably never happens? | ||
205 | return addStateCode(sd.node, (EObject) dependentEObject); | ||
206 | } else { | ||
207 | throw new DSEException("The EObject " + eObject.toString() + " does not have a feature " | ||
208 | + eReferred.toString() + "."); | ||
209 | } | ||
210 | } | ||
211 | } | ||
212 | |||
213 | return ""; | ||
214 | } | ||
215 | } | ||