com.nedap.archie.rules.evaluation.evaluators.ConstantEvaluator Maven / Gradle / Ivy

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package com.nedap.archie.rules.evaluation.evaluators;

import com.google.common.collect.Lists;
import com.nedap.archie.rules.Constant;
import com.nedap.archie.rules.PrimitiveType;
import com.nedap.archie.rules.evaluation.Evaluator;
import com.nedap.archie.rules.evaluation.RuleEvaluation;
import com.nedap.archie.rules.evaluation.ValueList;

import java.util.List;

/**
 * Created by pieter.bos on 01/04/16.
 */
public class ConstantEvaluator implements Evaluator> {
    @Override
    public ValueList evaluate(RuleEvaluation evaluation, Constant statement) {
        return new ValueList(convertNumber(statement.getValue()), PrimitiveType.fromExpressionType(statement.getType()));
    }

    private Object convertNumber(Object value) {
        if(value instanceof Integer) {
            return ((Integer) value).longValue();
        } else if(value instanceof Float) {
            return ((Float) value).doubleValue();
        }
        return value;
    }

    @Override
    public List> getSupportedClasses() {
        return Lists.newArrayList(Constant.class);
    }
}