com.sportradar.unifiedodds.sdk.impl.markets.OperandFactoryImpl Maven / Gradle / Ivy

/*
 * Copyright (C) Sportradar AG. See LICENSE for full license governing this code
 */

package com.sportradar.unifiedodds.sdk.impl.markets;

import java.util.Map;

/**
 * Created on 22/06/2017.
 * // TODO @eti: Javadoc
 */
public class OperandFactoryImpl implements OperandFactory {
    @Override
    public Operand buildOperand(Map specifiers, String operandExpression) {
        if ((operandExpression.startsWith("(") && !operandExpression.endsWith(")")) ||
                (!operandExpression.startsWith("(") && operandExpression.endsWith(")"))) {
            throw new IllegalArgumentException("Format of the operand " + operandExpression + " is not correct. It contains un-closing parenthesis.");
        }

        if (operandExpression.startsWith("(") && operandExpression.endsWith(")")) {
            operandExpression = operandExpression.substring(1, operandExpression.length() - 1);

            SimpleMathOperation operation;
            String[] parts;
            if (operandExpression.contains("+")) {
                operation = SimpleMathOperation.ADD;
                parts = operandExpression.split("\\+");
            } else if (operandExpression.contains("-")) {
                operation = SimpleMathOperation.SUBTRACT;
                parts = operandExpression.split("-");
            } else {
                throw new IllegalArgumentException("Format of operand " + operandExpression + " is not correct. It does not contain an operation identifier");
            }

            if (parts.length != 2) {
                throw new IllegalArgumentException("Format of operand " + operandExpression + " is not correct. It contains more than one operation identifier");
            }

            int staticValue = Integer.parseInt(parts[1]);
            return new ExpressionOperand(specifiers, parts[0], operation, staticValue);
        }

        return new SimpleOperand(specifiers, operandExpression);
    }
}