/**
* config generation for 'element -- operator -- element' mapping scenario stright forwerd and
* this method provide assignment for this operator
*
* @param operator this operator
* @param inputElement element map from input schema tree
* @return assignment statement for map
*/
private AssignmentStatement getSimpleOperatorMapping(Operator operator, Element inputElement) {
Element outputElement = getOutputElement(operator);
TreeNode outputParent = getOutputElementParent(operator);
String index = "";
if (inputElement.getFieldParent().getSchemaDataType().equals(SchemaDataType.ARRAY))
index = getIndex();
StringBuilder builder = new StringBuilder();
builder
.append(getTreeHierarchy(outputElement.getFieldParent(), outputParent))
.append(".")
.append(outputElement.getName())
.append(" = ")
.append(inputElement.getFieldParent().getName())
.append(index)
.append(".")
.append(inputElement.getName())
.append(getOperatorFunction())
.append(";");
AssignmentStatement statement = new AssignmentStatement();
statement.setStatement(builder.toString());
return statement;
}
@Override
public AssignmentStatement transform(Operator operator) {
EObject operatorInput = getInputObject(operator);
EObject operatorOutput = getOutputObject(operator);
if (operatorInput instanceof Element && operatorOutput instanceof Element) {
Element inputElement = (Element) operatorInput;
return getSimpleOperatorMapping(operator, inputElement);
} else if (operatorInput instanceof Element
&& operatorOutput instanceof OperatorLeftConnector) {
Operator nextOperator = (Operator) getOperator(operatorOutput);
// create ___ = me ____ and pass
String subAssign = createSubAssignment((Element) operatorInput);
OperatorsTransformer transformer =
DataMapperTransformerRegistry.getInstance().getTransformer(nextOperator);
String assign = transformer.trasnform(subAssign, operator, nextOperator);
AssignmentStatement statement = new AssignmentStatement();
statement.setStatement(assign);
return statement;
}
return null;
}