/*
* 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, The University of Manchester
*
* 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, University of Manchester
*
* 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 org.coode.owlapi.manchesterowlsyntax;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import org.semanticweb.owlapi.expression.ParserException;
import org.semanticweb.owlapi.io.AbstractOWLParser;
import org.semanticweb.owlapi.io.OWLOntologyDocumentSource;
import org.semanticweb.owlapi.io.OWLParserException;
import org.semanticweb.owlapi.model.OWLDataFactory;
import org.semanticweb.owlapi.model.OWLOntology;
import org.semanticweb.owlapi.model.OWLOntologyChangeException;
import org.semanticweb.owlapi.model.OWLOntologyFormat;
import org.semanticweb.owlapi.model.OWLOntologyLoaderConfiguration;
import org.semanticweb.owlapi.model.UnloadableImportException;
/**
* Author: Matthew Horridge<br>
* The University Of Manchester<br>
* Bio-Health Informatics Group<br>
* Date: 13-Aug-2007<br><br>
*/
public class ManchesterOWLSyntaxOntologyParser extends AbstractOWLParser {
private static final String COMMENT_START_CHAR = "#";
private static final String DEFAULT_FILE_ENCODING = "UTF-8";
public OWLOntologyFormat parse(OWLOntologyDocumentSource documentSource, OWLOntology ontology, OWLOntologyLoaderConfiguration configuration) throws OWLParserException, IOException, OWLOntologyChangeException, UnloadableImportException {
try {
BufferedReader br = null;
ManchesterOWLSyntaxOntologyFormat format = new ManchesterOWLSyntaxOntologyFormat();
try {
if (documentSource.isReaderAvailable()) {
br = new BufferedReader(documentSource.getReader());
}
else if (documentSource.isInputStreamAvailable()) {
br = new BufferedReader(new InputStreamReader(documentSource.getInputStream(), DEFAULT_FILE_ENCODING));
}
else {
br = new BufferedReader(new InputStreamReader(getInputStream(documentSource.getDocumentIRI()), DEFAULT_FILE_ENCODING));
}
StringBuilder sb = new StringBuilder();
String line;
int lineCount = 1;
// Try to find the "magic number" (Prefix: or Ontology:)
boolean foundMagicNumber = false;
while ((line = br.readLine()) != null) {
sb.append(line);
sb.append("\n");
if (!foundMagicNumber) {
String trimmedLine = line.trim();
if(trimmedLine.length() > 0) {
if(!trimmedLine.startsWith(COMMENT_START_CHAR)) {
// Non-empty line, that is not a comment. The trimmed line MUST start with our magic
// number if we are going to parse the rest of it.
if (startsWithMagicNumber(line)) {
foundMagicNumber = true;
// We have set the found flag - we never end up here again
}
else {
// Non-empty line that is NOT a comment. We cannot possibly parse this.
int startCol = line.indexOf(trimmedLine) + 1;
StringBuilder msg = new StringBuilder();
msg.append("Encountered '");
msg.append(trimmedLine);
msg.append("' at line ");
msg.append(lineCount);
msg.append(" column ");
msg.append(startCol);
msg.append(". Expected either 'Ontology:' or 'Prefix:'");
throw new ManchesterOWLSyntaxParserException(msg.toString(), lineCount, startCol);
}
}
}
}
lineCount++;
}
String s = sb.toString();
OWLDataFactory df = ontology.getOWLOntologyManager().getOWLDataFactory();
ManchesterOWLSyntaxEditorParser parser = new ManchesterOWLSyntaxEditorParser(configuration, df, s);
format = parser.parseOntology(ontology);
}
finally {
if(br!=null) {
br.close();
}
}
return format;
}
catch (ParserException e) {
throw new ManchesterOWLSyntaxParserException(e.getMessage(), e.getLineNumber(), e.getColumnNumber());
}
}
public OWLOntologyFormat parse(OWLOntologyDocumentSource documentSource, OWLOntology ontology) throws OWLParserException, IOException, UnloadableImportException {
return parse(documentSource, ontology, new OWLOntologyLoaderConfiguration());
}
private boolean startsWithMagicNumber(String line) {
return line.indexOf(ManchesterOWLSyntax.PREFIX.toString()) != -1 || line.indexOf(ManchesterOWLSyntax.ONTOLOGY.toString()) != -1;
}
}