com.clarkparsia.owlapi.explanation.io.ConciseExplanationRenderer Maven / Gradle / Ivy
/*
* This file is part of the OWL API.
*
* The contents of this file are subject to the LGPL License, Version 3.0.
*
* Copyright (C) 2011, Clark & Parsia, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
*
* Alternatively, the contents of this file may be used under the terms of the Apache License, Version 2.0
* in which case, the provisions of the Apache License Version 2.0 are applicable instead of those above.
*
* Copyright 2011, Clark & Parsia, LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.clarkparsia.owlapi.explanation.io;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;
import java.util.Set;
import org.semanticweb.owlapi.model.OWLAxiom;
import org.semanticweb.owlapi.model.OWLException;
import org.semanticweb.owlapi.util.SimpleRenderer;
/**
* Explanation renderer in concise form
*
*/
public class ConciseExplanationRenderer implements ExplanationRenderer {
private static final String INDENT = " ";
private final SimpleRenderer renderer = new SimpleRenderer();
private PrintWriter writer;
@Override
public void startRendering(Writer w) {
writer = w instanceof PrintWriter ? (PrintWriter) w : new PrintWriter(w);
}
@Override
public void render(OWLAxiom axiom, Set> explanations) throws OWLException, IOException {
writer.println("Axiom: " + renderer.render(axiom));
int expSize = explanations.size();
if (expSize == 0) {
writer.println("Explanation: AXIOM IS NOT ENTAILED!");
return;
}
if (expSize == 1) {
writer.println("Explanation: ");
Set explanation = explanations.iterator().next();
renderSingleExplanation(INDENT, explanation);
}
else {
writer.println("Explanations (" + expSize + "): ");
renderMultipleExplanations(explanations);
}
writer.println();
}
private void renderMultipleExplanations(Set> explanations) {
int count = 1;
for (Set exp : explanations) {
String header = count++ + ") ";
renderSingleExplanation(header, exp);
}
}
private void renderSingleExplanation(String header, Set axioms) {
boolean first = true;
for (OWLAxiom axiom : axioms) {
if (first) {
first = false;
} else {
header = INDENT;
}
writer.println(header + renderer.render(axiom));
}
}
@Override
public void endRendering() {
writer.flush();
}
}