com.github.switcherapi.client.service.validators.RegexValidator Maven / Gradle / Ivy

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package com.github.switcherapi.client.service.validators;

import com.github.switcherapi.client.exception.SwitcherInvalidOperationException;
import com.github.switcherapi.client.model.Entry;
import com.github.switcherapi.client.model.StrategyValidator;
import com.github.switcherapi.client.model.criteria.Strategy;

import java.util.Arrays;

@ValidatorComponent(type = StrategyValidator.REGEX)
public class RegexValidator extends Validator {

	private static final String DELIMITER_REGEX = "\\b%s\\b";

	@Override
	public boolean process(Strategy strategy, Entry switcherInput) throws SwitcherInvalidOperationException {
		switch (strategy.getEntryOperation()) {
			case EXIST:
				return Arrays.stream(strategy.getValues()).anyMatch(val -> switcherInput.getInput().matches(val));
			case NOT_EXIST:
				return Arrays.stream(strategy.getValues()).noneMatch(val -> switcherInput.getInput().matches(val));
			case EQUAL:
				return strategy.getValues().length == 1
						&& switcherInput.getInput().matches(String.format(DELIMITER_REGEX, strategy.getValues()[0]));
			case NOT_EQUAL:
				return strategy.getValues().length == 1
						&& !switcherInput.getInput().matches(String.format(DELIMITER_REGEX, strategy.getValues()[0]));
			default:
				throw new SwitcherInvalidOperationException(strategy.getOperation(), strategy.getStrategy());
		}
	}

}