at.porscheinformatik.sonarqube.licensecheck.mavenlicense.MavenLicense.java Source code

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Here is the source code for at.porscheinformatik.sonarqube.licensecheck.mavenlicense.MavenLicense.java

Source

package at.porscheinformatik.sonarqube.licensecheck.mavenlicense;

import java.io.StringReader;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.TreeSet;
import java.util.regex.Pattern;

import javax.json.Json;
import javax.json.JsonArray;
import javax.json.JsonObject;
import javax.json.JsonReader;
import javax.json.stream.JsonGenerator;

import org.apache.commons.lang3.StringUtils;

public class MavenLicense implements Comparable<MavenLicense> {
    private final Pattern licenseNameRegEx;
    private final String license;

    public MavenLicense(String licenseNameRegEx, String license) {
        super();
        this.licenseNameRegEx = Pattern.compile(licenseNameRegEx);
        this.license = license;
    }

    public Pattern getLicenseNameRegEx() {
        return licenseNameRegEx;
    }

    public String getLicense() {
        return license;
    }

    @Override
    public int compareTo(MavenLicense o) {
        if (o == null) {
            return 1;
        } else if (this.license.compareTo(o.license) == 0) {
            return this.licenseNameRegEx.toString().compareTo(o.licenseNameRegEx.toString());
        } else {
            return this.license.compareTo(o.license);
        }
    }

    @Override
    public boolean equals(Object object) {
        if (this == object) {
            return true;
        }
        if (object == null) {
            return false;
        }
        if (getClass() != object.getClass()) {
            return false;
        }

        MavenLicense mavenLicense = (MavenLicense) object;
        return mavenLicense.license.equals(this.license)
                && mavenLicense.licenseNameRegEx.toString().equals(this.licenseNameRegEx.toString());
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = (prime * result) + ((license == null) ? 0 : license.hashCode());
        result = (prime * result) + ((licenseNameRegEx == null) ? 0 : licenseNameRegEx.hashCode());
        return result;
    }

    public static List<MavenLicense> fromString(String mavenLicenseString) {
        List<MavenLicense> mavenLicenses = new ArrayList<>();

        if (mavenLicenseString != null && mavenLicenseString.startsWith("[")) {
            try (JsonReader jsonReader = Json.createReader(new StringReader(mavenLicenseString))) {
                JsonArray licensesJson = jsonReader.readArray();
                for (int i = 0; i < licensesJson.size(); i++) {
                    JsonObject licenseJson = licensesJson.getJsonObject(i);
                    mavenLicenses.add(new MavenLicense(licenseJson.getString("licenseNameRegEx"),
                            licenseJson.getString("license")));
                }
            }
        } else if (StringUtils.isNotEmpty(mavenLicenseString)) {
            // deprecated - remove with later release
            String[] mavenLicenseEntries = mavenLicenseString.split(";");
            for (String mavenLicenseEntry : mavenLicenseEntries) {
                String[] mavenLicenseEntryParts = mavenLicenseEntry.split("~");
                mavenLicenses.add(new MavenLicense(mavenLicenseEntryParts[0], mavenLicenseEntryParts[1]));
            }
        }

        return mavenLicenses;
    }

    public static String createString(Collection<MavenLicense> mavenLicenses) {
        TreeSet<MavenLicense> mavenLicenseSet = new TreeSet<>();
        mavenLicenseSet.addAll(mavenLicenses);

        StringWriter jsonString = new StringWriter();
        JsonGenerator generator = Json.createGenerator(jsonString);
        generator.writeStartArray();
        for (MavenLicense mavenLicense : mavenLicenseSet) {
            generator.writeStartObject();
            generator.write("licenseNameRegEx", mavenLicense.getLicenseNameRegEx().pattern());
            generator.write("license", mavenLicense.getLicense());
            generator.writeEnd();
        }
        generator.writeEnd();
        generator.close();

        return jsonString.toString();
    }
}