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Provides pretty html reports for Cucumber (Behaviour-Driven Development). It works by generating html from the cucumber json report formatter. So can be used anywhere a json report is generated. Current use is in the cucumber jenkins plugin and a maven mojo to generate the same report from mvn command line when running locally.

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package net.masterthought.cucumber;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.apache.commons.io.Charsets;

import com.google.gson.Gson;
import com.google.gson.JsonSyntaxException;

import net.masterthought.cucumber.json.Feature;

public class ReportParser {

    private final Configuration configuration;

    public ReportParser(Configuration configuration){
        this.configuration = configuration;
    }

    public List parseJsonResults(List jsonReportFiles) {
        List featureResults = new ArrayList<>();
        Gson gson = new Gson();

        for (int i = 0; i < jsonReportFiles.size(); i++) {
            String jsonFile = jsonReportFiles.get(i);
            try (Reader reader = new InputStreamReader(new FileInputStream(jsonFile), Charsets.UTF_8)) {
                Feature[] features = gson.fromJson(reader, Feature[].class);
                if (features == null) {
                    throw new IllegalArgumentException(String.format("File '%s' does not contan features!", jsonFile));
                }
                setMetadata(features, jsonFile, i);

                featureResults.addAll(Arrays.asList(features));
            } catch (IOException | JsonSyntaxException e) {
                throw new ValidationException(e);
            }
        }

        return featureResults;
    }

    /** Sets additional information and calculates values which should be calculated during object creation. */
    private void setMetadata(Feature[] features, String jsonFile, int jsonFileNo) {
        for (Feature feature : features) {
            feature.setMetaData(jsonFile, jsonFileNo, configuration);
        }
    }
}