public Version()

in maven-release-api/src/main/java/org/apache/maven/shared/release/versions/Version.java [123:166]
36 lines of code
6 McCabe index (conditional complexity)

    public Version(String version) throws VersionParseException {
        this.strVersion = version;
        this.aetherVersion = new AetherVersion(version);
        this.mavenArtifactVersion = new MavenArtifactVersion(version);

        // FIX for non-digit release numbers, e.g. trunk-SNAPSHOT or just SNAPSHOT
        Matcher matcher = ALTERNATE_PATTERN.matcher(strVersion);
        // TODO: hack because it didn't support "SNAPSHOT"
        if (matcher.matches()) {
            annotation = null;
            digits = null;
            buildSpecifier = version;
            buildSeparator = null;
            return;
        }

        Matcher m = STANDARD_PATTERN.matcher(strVersion);
        if (m.matches()) {
            digits = parseDigits(m.group(DIGITS_INDEX));
            if (!SNAPSHOT_IDENTIFIER.equals(m.group(ANNOTATION_INDEX))) {
                annotationSeparator = m.group(ANNOTATION_SEPARATOR_INDEX);
                annotation = nullIfEmpty(m.group(ANNOTATION_INDEX));

                if (StringUtils.isNotEmpty(m.group(ANNOTATION_REV_SEPARATOR_INDEX))
                        && StringUtils.isEmpty(m.group(ANNOTATION_REVISION_INDEX))) {
                    // The build separator was picked up as the annotation revision separator
                    buildSeparator = m.group(ANNOTATION_REV_SEPARATOR_INDEX);
                    buildSpecifier = nullIfEmpty(m.group(BUILD_SPECIFIER_INDEX));
                } else {
                    annotationRevSeparator = m.group(ANNOTATION_REV_SEPARATOR_INDEX);
                    annotationRevision = nullIfEmpty(m.group(ANNOTATION_REVISION_INDEX));

                    buildSeparator = m.group(BUILD_SEPARATOR_INDEX);
                    buildSpecifier = nullIfEmpty(m.group(BUILD_SPECIFIER_INDEX));
                }
            } else {
                // Annotation was "SNAPSHOT" so populate the build specifier with that data
                buildSeparator = m.group(ANNOTATION_SEPARATOR_INDEX);
                buildSpecifier = nullIfEmpty(m.group(ANNOTATION_INDEX));
            }
        } else {
            throw new VersionParseException("Unable to parse the version string: \"" + version + "\"");
        }
    }