package org.jtwig.render.expression.calculator.operation.unary;
import com.google.common.base.Optional;
import org.jtwig.render.expression.calculator.operation.unary.calculators.UnaryOperationCalculator;
import java.util.Map;
public class UnaryOperationCalculatorSelector {
private final Map<Class<? extends UnaryOperator>, UnaryOperationCalculator> operationCalculatorMap;
public UnaryOperationCalculatorSelector(Map<Class<? extends UnaryOperator>, UnaryOperationCalculator> operationCalculatorMap) {
this.operationCalculatorMap = operationCalculatorMap;
}
public Optional<UnaryOperationCalculator> calculatorFor (UnaryOperator operator) {
return Optional.fromNullable(operationCalculatorMap.get(operator.getClass()));
}
}