public void addCellValue(int row, int column, String value) {
this.hasValues = true;
Integer key = new Integer(column);
String content = (String) this.constraints.get(key);
if (content == null) {
throw new DecisionTableParseException(
"No code snippet for CONDITION in cell "
+ RuleSheetParserUtil.rc2name(this.headerRow + 2, this.headerCol));
}
SnippetBuilder snip = new SnippetBuilder(content);
String result = snip.build(fixValue(value));
this.values.add(result);
}
/**
* Work out the type of "field" that is being specified, as in : age age < age == $param age == $1
* || age == $2 forall{age < $}{,}
*
* <p>etc. as we treat them all differently.
*/
public FieldType calcFieldType(String content) {
if (!SnippetBuilder.getType(content).equals(SnippetBuilder.SnippetType.SINGLE)) {
return FieldType.NORMAL_FIELD;
}
for (String op : operators) {
if (content.endsWith(op)) {
return FieldType.OPERATOR_FIELD;
}
}
return FieldType.SINGLE_FIELD;
}
private ParameterizedValueBuilder getValueBuilder(final String content) {
// Work out the type of "template":-
// age ---> SnippetType.SINGLE
// age == ---> SnippetType.SINGLE
// age == $param ---> SnippetType.PARAM
// age == $1 || age == $2 ---> SnippetType.INDEXED
// forall{age < $}{,} ---> SnippetType.FORALL
String template = content.trim();
SnippetType type = SnippetBuilder.getType(template);
if (type == SnippetType.SINGLE) {
type = SnippetType.PARAM;
boolean hasExplicitOperator = false;
for (String op : operators) {
if (template.endsWith(op)) {
hasExplicitOperator = true;
break;
}
}
if (!hasExplicitOperator) {
template = template + " ==";
}
template = template + " \"";
template = template + SnippetBuilder.PARAM_STRING + "\"";
}
// Make a ValueBuilder for the template
switch (type) {
case INDEXED:
return new IndexedParametersValueBuilder(
template, parameterUtilities, ParameterizedValueBuilder.Part.LHS);
case PARAM:
return new SingleParameterValueBuilder(
template, parameterUtilities, ParameterizedValueBuilder.Part.LHS);
case SINGLE:
return new LiteralValueBuilder(template);
}
throw new DecisionTableParseException(
"SnippetBuilder.SnippetType '"
+ type.toString()
+ "' is not supported. The column will not be added.");
}