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package cucumber.runtime;

import cucumber.runtime.io.Resource;
import cucumber.runtime.model.CucumberFeature;
import gherkin.I18n;
import gherkin.formatter.FilterFormatter;
import gherkin.formatter.Formatter;
import gherkin.formatter.model.Background;
import gherkin.formatter.model.Examples;
import gherkin.formatter.model.Feature;
import gherkin.formatter.model.Scenario;
import gherkin.formatter.model.ScenarioOutline;
import gherkin.formatter.model.Step;
import gherkin.lexer.Encoding;
import gherkin.parser.Parser;
import gherkin.util.FixJava;

import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigInteger;
import java.nio.charset.Charset;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class FeatureBuilder implements Formatter {
    private static final Charset UTF8 = Charset.forName("UTF-8");
    private final List cucumberFeatures;
    private final char fileSeparatorChar;
    private final MessageDigest md5;
    private final Map pathsByChecksum = new HashMap();
    private CucumberFeature currentCucumberFeature;
    private String featurePath;

    public FeatureBuilder(List cucumberFeatures) {
        this(cucumberFeatures, File.separatorChar);
    }

    FeatureBuilder(List cucumberFeatures, char fileSeparatorChar) {
        this.cucumberFeatures = cucumberFeatures;
        this.fileSeparatorChar = fileSeparatorChar;
        try {
            this.md5 = MessageDigest.getInstance("MD5");
        } catch (NoSuchAlgorithmException e) {
            throw new CucumberException(e);
        }
    }

    @Override
    public void uri(String uri) {
        this.featurePath = uri;
    }

    @Override
    public void feature(Feature feature) {
        currentCucumberFeature = new CucumberFeature(feature, featurePath);
        cucumberFeatures.add(currentCucumberFeature);
    }

    @Override
    public void background(Background background) {
        currentCucumberFeature.background(background);
    }

    @Override
    public void scenario(Scenario scenario) {
        currentCucumberFeature.scenario(scenario);
    }

    @Override
    public void scenarioOutline(ScenarioOutline scenarioOutline) {
        currentCucumberFeature.scenarioOutline(scenarioOutline);
    }

    @Override
    public void examples(Examples examples) {
        currentCucumberFeature.examples(examples);
    }

    @Override
    public void step(Step step) {
        currentCucumberFeature.step(step);
    }

    @Override
    public void eof() {
    }

    @Override
    public void syntaxError(String state, String event, List legalEvents, String uri, Integer line) {
    }

    @Override
    public void done() {
    }

    @Override
    public void close() {
    }

    @Override
    public void startOfScenarioLifeCycle(Scenario scenario) {
        // NoOp
    }

    @Override
    public void endOfScenarioLifeCycle(Scenario scenario) {
        // NoOp
    }

    public void parse(Resource resource, List