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package hu.bme.mit.inf.dslreasoner.faulttree.components.conversion
import org.eclipse.xtext.conversion.ValueConverterException
import org.eclipse.xtext.conversion.impl.AbstractLexerBasedConverter
import org.eclipse.xtext.nodemodel.INode
class OF_INTValueConverter extends AbstractLexerBasedConverter<Integer> {
static val PREFIX = "of"
override toValue(String string, INode node) throws ValueConverterException {
if (string === null) {
return null
}
if (string.length < PREFIX.length || string.substring(0, PREFIX.length) != PREFIX) {
throw new ValueConverterException("'" + string + "' must start with the characters 'of'.", node, null);
}
try {
val intValue = Integer.parseInt(string.substring(PREFIX.length), 10)
Integer.valueOf(intValue)
} catch (NumberFormatException e) {
throw new ValueConverterException("Couldn't convert '" + string + "' to an int value.", node, e);
}
}
override protected toEscapedString(Integer value) {
PREFIX + value
}
override protected assertValidValue(Integer value) {
super.assertValidValue(value)
if (value < 0) {
throw new ValueConverterException(getRuleName() + " may not be negative.", null, null);
}
}
}
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