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/* |
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* |
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* Copyright (C) 2009-2017 Julian Mendez |
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* |
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* |
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* This file is part of jcel. |
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* |
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* |
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* The contents of this file are subject to the GNU Lesser General Public License |
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* version 3 |
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* |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* |
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* Alternatively, the contents of this file may be used under the terms |
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* of the Apache License, Version 2.0, in which case the |
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* provisions of the Apache License, Version 2.0 are applicable instead of those |
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* above. |
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* |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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*/ |
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package de.tudresden.inf.lat.jcel.core.completion.ext; |
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import java.util.HashSet; |
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import java.util.Objects; |
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import java.util.Optional; |
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import java.util.Set; |
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import de.tudresden.inf.lat.jcel.core.completion.common.ClassifierStatus; |
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import de.tudresden.inf.lat.jcel.core.completion.common.CompletionRuleMonitor; |
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import de.tudresden.inf.lat.jcel.core.completion.common.RObserverRule; |
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import de.tudresden.inf.lat.jcel.core.graph.VNode; |
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import de.tudresden.inf.lat.jcel.core.graph.VNodeImpl; |
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import de.tudresden.inf.lat.jcel.coreontology.datatype.IntegerEntityManager; |
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/** |
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* |
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* <ul> |
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* <li>CR-9 (optimized) : <b>if</b> <u>(r<sub>1</sub>, x, y<sub>1</sub>) ∈ |
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* R</u>, (r<sub>2</sub>, x, y<sub>2</sub>) ∈ R, …, (r<sub>n</sub>, |
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* x, y<sub>n</sub>) ∈ R, <br> |
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* r<sub>1</sub> \u2291<sub><i>T</i></sub> s, r<sub>2</sub> \u2291 |
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* <sub><i>T</i></sub> s, …, r<sub>n</sub> \u2291<sub><i>T</i></sub> s, y |
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* <sub>i</sub> = (\u22A4 , ψ<sub>i</sub>) for 1 ≤ i ≤ n, y |
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* <sub>i</sub> ≠ y<sub>j</sub> for 1 ≤ i < j ≤ n, f(s) <br> |
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* <b>then</b> v := (\u22A4 , ψ<sub>1</sub> ∪ … ∪ ψ |
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* <sub>n</sub>) <br> |
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* <b>if</b> v ∉ V <b>then</b> V := V ∪ {v} |
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* <br> |
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* S := S ∪ {(v, k) | (y<sub>1</sub>, k) ∈ S} |
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* ∪ … ∪ {(v, k) | (y<sub>n</sub>, k) ∈ S} <br> |
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* R := R ∪ {(r<sub>1</sub>, x, v)}</li> |
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* </ul> |
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* <br> |
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* |
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* @author Julian Mendez |
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*/ |
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public class CR9RExtOptRule implements RObserverRule { |
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/** |
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* Constructs a new completion rule CR-9. |
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*/ |
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public CR9RExtOptRule() { |
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} |
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@Override |
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public boolean apply(ClassifierStatus status, int property, int leftClass, int rightClass) { |
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Objects.requireNonNull(status); |
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return applyRule(status, property, leftClass, rightClass); |
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} |
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private boolean applyRule(ClassifierStatus status, int r1, int x, int y) { |
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CompletionRuleMonitor ret = new CompletionRuleMonitor(); |
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Optional<VNode> optPsiNode = status.getNode(y); |
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if (!optPsiNode.isPresent()) { |
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throw new IllegalStateException("Node not found in internal structure '" + y + "'."); |
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} |
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if (optPsiNode.get().getClassId() == IntegerEntityManager.topClassId) { |
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Set<Integer> valid = new HashSet<>(); |
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valid.add(y); |
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status.getObjectPropertiesWithFunctionalAncestor(r1).forEach(r2 -> { |
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status.getSecondByFirst(r2, x).forEach(yi -> { |
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Optional<VNode> optPhiNode = status.getNode(yi); |
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if (!optPhiNode.isPresent()) { |
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throw new IllegalStateException("Node not found in internal structure '" + yi + "'."); |
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} |
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if (optPhiNode.get().getClassId() == IntegerEntityManager.topClassId) { |
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valid.add(yi); |
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} |
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}); |
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}); |
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if (valid.size() > 1) { |
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VNodeImpl newNode = new VNodeImpl(IntegerEntityManager.topClassId); |
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valid.forEach(yi -> { |
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Optional<VNode> optPhiNode = status.getNode(yi); |
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if (!optPsiNode.isPresent()) { |
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throw new IllegalStateException("Node not found in internal structure '" + yi + "'."); |
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} |
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newNode.addExistentialsOf(optPhiNode.get()); |
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}); |
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int v = status.createOrGetNodeId(newNode); |
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valid.forEach(yi -> { |
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status.getSubsumers(yi).forEach(p -> { |
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ret.or(status.addNewSEntry(v, p)); |
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}); |
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ret.or(status.addNewREntry(r1, x, v)); |
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}); |
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} |
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} |
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return ret.get(); |
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} |
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@Override |
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public boolean equals(Object o) { |
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return (Objects.nonNull(o)) && getClass().equals(o.getClass()); |
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} |
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@Override |
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public int hashCode() { |
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return getClass().hashCode(); |
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} |
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@Override |
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public String toString() { |
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return getClass().getSimpleName(); |
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} |
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} |
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julianmendez /
jcel
