package org.jtwig.render.expression.test;
import com.google.common.base.Optional;
import org.jtwig.model.expression.test.TestExpression;
import org.jtwig.render.expression.test.calculator.TestExpressionCalculator;
import java.util.Map;
public class TestExpressionCalculatorSelector {
private final Map<Class<? extends TestExpression>, TestExpressionCalculator> calculatorMap;
public TestExpressionCalculatorSelector(Map<Class<? extends TestExpression>, TestExpressionCalculator> calculatorMap) {
this.calculatorMap = calculatorMap;
}
public Optional<TestExpressionCalculator> calculatorFor (TestExpression expression) {
return Optional.fromNullable(calculatorMap.get(expression.getClass()));
}
}