private Object encodeLiteral(final Literal literal) {
final URI datatype = literal.getDatatype();
if (datatype == null || datatype.equals(XMLSchema.STRING)) {
final String language = literal.getLanguage();
if (language == null) {
return literal.getLabel();
} else {
return SerializerAvro.newGenericRecord(Schemas.STRING_LANG, literal.getLabel(), language);
}
} else if (datatype.equals(XMLSchema.BOOLEAN)) {
return literal.booleanValue();
} else if (datatype.equals(XMLSchema.LONG)) {
return literal.longValue();
} else if (datatype.equals(XMLSchema.INT)) {
return literal.intValue();
} else if (datatype.equals(XMLSchema.DOUBLE)) {
return literal.doubleValue();
} else if (datatype.equals(XMLSchema.FLOAT)) {
return literal.floatValue();
} else if (datatype.equals(XMLSchema.SHORT)) {
return SerializerAvro.newGenericRecord(Schemas.SHORT, literal.intValue());
} else if (datatype.equals(XMLSchema.BYTE)) {
return SerializerAvro.newGenericRecord(Schemas.BYTE, literal.intValue());
} else if (datatype.equals(XMLSchema.INTEGER)) {
return SerializerAvro.newGenericRecord(Schemas.BIGINTEGER, literal.stringValue());
} else if (datatype.equals(XMLSchema.DECIMAL)) {
return SerializerAvro.newGenericRecord(Schemas.BIGDECIMAL, literal.stringValue());
} else if (datatype.equals(XMLSchema.DATETIME)) {
final XMLGregorianCalendar calendar = literal.calendarValue();
return SerializerAvro.newGenericRecord(
Schemas.CALENDAR,
calendar.getTimezone(),
calendar.toGregorianCalendar().getTimeInMillis());
}
throw new IllegalArgumentException("Unsupported literal: " + literal);
}
private RDFValueRange fillObjectRange(Value oVal) {
if (oVal instanceof URI) {
URI uri = (URI) oVal;
PrefixRange pr = new PrefixRange();
pr.getPrefixList().add(uri.stringValue());
return new RDFValueRange(
new RDFURIRange(pr.getPrefixList()),
new RDFLiteralRange(Collections.<URI, RangeLength<?>>emptyMap()));
} else if (oVal instanceof Literal) {
Literal l = (Literal) oVal;
Range literalRange = null;
if (l.getDatatype().equals(XMLSchema.INT))
literalRange =
new RDFLiteralRange(XMLSchema.INT, new IntervalRange(l.intValue(), l.intValue()));
else if (l.getDatatype().equals(XMLSchema.LONG))
literalRange =
new RDFLiteralRange(
XMLSchema.LONG, new IntervalRange((int) l.longValue(), (int) l.longValue()));
else if (l.getDatatype().equals(XMLSchema.STRING)) {
PrefixRange pr = new PrefixRange();
pr.getPrefixList().add(l.stringValue());
literalRange = new RDFLiteralRange(XMLSchema.STRING, pr);
} else if (l.getDatatype().equals(XMLSchema.DATETIME)) {
Calendar cal = l.calendarValue().toGregorianCalendar();
CalendarRange cr = new CalendarRange(cal.getTime(), cal.getTime());
literalRange = new RDFLiteralRange(XMLSchema.DATETIME, cr);
}
if (literalRange != null)
return new RDFValueRange(
new RDFURIRange(Collections.<String>emptyList()), (RDFLiteralRange) literalRange);
}
return new RDFValueRange();
}
public static String literal(Literal l) {
return literal(l.stringValue());
}
