@SuppressWarnings("javadoc")
public OWLLiteralImplBoolean(boolean literal) {
super();
datatype = OWL2DatatypeImpl.getDatatype(OWL2Datatype.XSD_BOOLEAN);
this.literal = literal;
hashcode = getHashCode();
}
/** @author ignazio no cache used */
public class InternalsNoCache implements OWLDataFactoryInternals, Serializable {
private static final long serialVersionUID = 30402L;
private static final OWLDatatype RDF_PLAIN_LITERAL =
OWL2DatatypeImpl.getDatatype(OWL2Datatype.RDF_PLAIN_LITERAL);
private static final OWLDatatype XSD_BOOLEAN =
OWL2DatatypeImpl.getDatatype(OWL2Datatype.XSD_BOOLEAN);
private static final OWLDatatype XSD_DOUBLE =
OWL2DatatypeImpl.getDatatype(OWL2Datatype.XSD_DOUBLE);
private static final OWLDatatype XSD_FLOAT = OWL2DatatypeImpl.getDatatype(OWL2Datatype.XSD_FLOAT);
private static final OWLDatatype XSD_INTEGER =
OWL2DatatypeImpl.getDatatype(OWL2Datatype.XSD_INTEGER);
private static final OWLDatatype RDFS_LITERAL =
OWL2DatatypeImpl.getDatatype(OWL2Datatype.RDFS_LITERAL);
private final OWLLiteral trueLiteral;
private final OWLLiteral falseLiteral;
private OWLLiteral negativeFloatZero;
private final boolean useCompression;
/** @param useCompression true if compression of literals should be used */
public InternalsNoCache(boolean useCompression) {
trueLiteral = new OWLLiteralImplBoolean(true);
falseLiteral = new OWLLiteralImplBoolean(false);
this.useCompression = useCompression;
}
@Override
public void purge() {}
@Override
public OWLClass getOWLClass(IRI iri) {
return new OWLClassImpl(iri);
}
@Override
public OWLObjectProperty getOWLObjectProperty(IRI iri) {
return new OWLObjectPropertyImpl(iri);
}
@Override
public OWLDataProperty getOWLDataProperty(IRI iri) {
return new OWLDataPropertyImpl(iri);
}
@Override
public OWLNamedIndividual getOWLNamedIndividual(IRI iri) {
return new OWLNamedIndividualImpl(iri);
}
@Override
public OWLDatatype getOWLDatatype(IRI iri) {
return new OWLDatatypeImpl(iri);
}
@Override
public OWLAnnotationProperty getOWLAnnotationProperty(IRI iri) {
return new OWLAnnotationPropertyImpl(iri);
}
@Override
public OWLLiteral getOWLLiteral(float value) {
return new OWLLiteralImplFloat(value, getFloatOWLDatatype());
}
@Override
public OWLLiteral getOWLLiteral(String value) {
if (useCompression) {
return new OWLLiteralImpl(value, "", getOWLDatatype(XSDVocabulary.STRING.getIRI()));
}
return new OWLLiteralImplNoCompression(
value, "", getOWLDatatype(XSDVocabulary.STRING.getIRI()));
}
@Override
public OWLLiteral getOWLLiteral(String literal, String lang) {
String normalisedLang;
if (lang == null) {
normalisedLang = "";
} else {
normalisedLang = lang.trim().toLowerCase(Locale.ENGLISH);
}
if (useCompression) {
return new OWLLiteralImpl(literal, normalisedLang, null);
}
return new OWLLiteralImplNoCompression(literal, normalisedLang, null);
}
@Override
public OWLLiteral getOWLLiteral(int value) {
return new OWLLiteralImplInteger(value, getIntegerOWLDatatype());
}
@Override
public OWLLiteral getOWLLiteral(boolean value) {
return value ? trueLiteral : falseLiteral;
}
@Override
public OWLLiteral getOWLLiteral(double value) {
return new OWLLiteralImplDouble(value, getDoubleOWLDatatype());
}
@Override
public OWLLiteral getOWLLiteral(String lexicalValue, OWLDatatype datatype) {
OWLLiteral literal;
if (datatype.isRDFPlainLiteral()) {
int sep = lexicalValue.lastIndexOf('@');
if (sep != -1) {
String lex = lexicalValue.substring(0, sep);
String lang = lexicalValue.substring(sep + 1);
literal = getBasicLiteral(lex, lang, getRDFPlainLiteral());
} else {
literal = getBasicLiteral(lexicalValue, datatype);
}
} else {
// check the four special cases
try {
if (datatype.isBoolean()) {
literal = getOWLLiteral(isBooleanTrueValue(lexicalValue.trim()));
} else if (datatype.isFloat()) {
if (lexicalValue.trim().equals("-0.0")) {
// according to some W3C test, this needs to be
// different from 0.0; Java floats disagree
if (negativeFloatZero == null) {
negativeFloatZero = getBasicLiteral("-0.0", XSD_FLOAT);
}
literal = negativeFloatZero;
} else {
try {
float f = Float.parseFloat(lexicalValue);
literal = getOWLLiteral(f);
} catch (NumberFormatException e) {
literal = getBasicLiteral(lexicalValue, datatype);
}
}
} else if (datatype.isDouble()) {
literal = getOWLLiteral(Double.parseDouble(lexicalValue));
} else if (datatype.isInteger()) {
// again, some W3C tests require padding zeroes to make
// literals different
if (lexicalValue.trim().charAt(0) == '0') {
literal = getBasicLiteral(lexicalValue, getIntegerOWLDatatype());
} else {
try {
// this is fine for values that can be parsed as
// ints - not all values are
literal = getOWLLiteral(Integer.parseInt(lexicalValue));
} catch (NumberFormatException ex) {
// try as a big decimal
literal = getBasicLiteral(lexicalValue, datatype);
}
}
} else {
literal = getBasicLiteral(lexicalValue, datatype);
}
} catch (NumberFormatException e) {
// some literal is malformed, i.e., wrong format
literal = getBasicLiteral(lexicalValue, datatype);
}
}
return literal;
}
protected OWLLiteral getBasicLiteral(String lexicalValue, OWLDatatype datatype) {
return getBasicLiteral(lexicalValue, "", datatype);
}
protected OWLLiteral getBasicLiteral(String lexicalValue, String lang, OWLDatatype datatype) {
OWLLiteral literal = null;
if (useCompression) {
literal = new OWLLiteralImpl(lexicalValue, lang, datatype);
} else {
literal = new OWLLiteralImplNoCompression(lexicalValue, lang, datatype);
}
return literal;
}
// private boolean isBooleanFalseValue(String lexicalValue) {
// return lexicalValue.equals("0") || lexicalValue.equals("false");
// }
private boolean isBooleanTrueValue(String lexicalValue) {
return lexicalValue.equals("1") || lexicalValue.equals("true");
}
@Override
public OWLDatatype getTopDatatype() {
return RDFS_LITERAL;
}
@Override
public OWLDatatype getIntegerOWLDatatype() {
return XSD_INTEGER;
}
@Override
public OWLDatatype getFloatOWLDatatype() {
return XSD_FLOAT;
}
@Override
public OWLDatatype getDoubleOWLDatatype() {
return XSD_DOUBLE;
}
@Override
public OWLDatatype getBooleanOWLDatatype() {
return XSD_BOOLEAN;
}
@Override
public OWLDatatype getRDFPlainLiteral() {
return RDF_PLAIN_LITERAL;
}
}
