private Gav getSnapshotGav()

in indexer-core/src/main/java/org/apache/maven/index/artifact/M2GavCalculator.java [176:266]
67 lines of code
10 McCabe index (conditional complexity)

    private Gav getSnapshotGav(
            String s,
            int vEndPos,
            String groupId,
            String artifactId,
            String version,
            String fileName,
            boolean checksum,
            boolean signature,
            Gav.HashType checksumType,
            Gav.SignatureType signatureType) {

        Integer snapshotBuildNo = null;

        Long snapshotTimestamp = null;

        int vSnapshotStart = vEndPos + artifactId.length() + version.length() - 9 + 3;

        String vSnapshot = s.substring(vSnapshotStart, vSnapshotStart + 8);

        String classifier;

        String ext;

        if ("SNAPSHOT".equals(vSnapshot)) {
            int nTailPos = vEndPos + artifactId.length() + version.length() + 2;

            String tail = s.substring(nTailPos);

            int nExtPos = tail.indexOf('.');

            if (nExtPos == -1) {
                // NX-563: not allowing extensionless paths to be interpreted as artifact
                return null;
            }

            ext = tail.substring(nExtPos + 1);

            classifier = tail.charAt(0) == '-' ? tail.substring(1, nExtPos) : null;
        } else {
            StringBuilder sb = new StringBuilder(vSnapshot);
            sb.append(s, vSnapshotStart + sb.length(), vSnapshotStart + sb.length() + 8);

            try {
                SimpleDateFormat df = new SimpleDateFormat("yyyyMMdd.HHmmss");
                snapshotTimestamp = df.parse(sb.toString()).getTime();
            } catch (ParseException e) {
            }

            int buildNumberPos = vSnapshotStart + sb.length();
            StringBuilder bnr = new StringBuilder();
            while (s.charAt(buildNumberPos) >= '0' && s.charAt(buildNumberPos) <= '9') {
                sb.append(s.charAt(buildNumberPos));
                bnr.append(s.charAt(buildNumberPos));
                buildNumberPos++;
            }
            String snapshotBuildNumber = sb.toString();
            snapshotBuildNo = Integer.parseInt(bnr.toString());

            int n = version.length() > 9 ? version.length() - 9 + 1 : 0;

            String tail = s.substring(vEndPos + artifactId.length() + n + snapshotBuildNumber.length() + 2);

            int nExtPos = tail.indexOf('.');

            if (nExtPos == -1) {
                // NX-563: not allowing extensionless paths to be interpreted as artifact
                return null;
            }

            ext = tail.substring(nExtPos + 1);

            classifier = tail.charAt(0) == '-' ? tail.substring(1, nExtPos) : null;

            version = version.substring(0, version.length() - 8) + snapshotBuildNumber;
        }

        return new Gav(
                groupId,
                artifactId,
                version,
                classifier,
                ext,
                snapshotBuildNo,
                snapshotTimestamp,
                fileName,
                checksum,
                checksumType,
                signature,
                signatureType);
    }