public Gav pathToGav()

in indexer-core/src/main/java/org/apache/maven/index/artifact/M1GavCalculator.java [43:117]
63 lines of code
18 McCabe index (conditional complexity)

    public Gav pathToGav(String str) {
        try {
            String s = str.startsWith("/") ? str.substring(1) : str;

            int n1 = s.lastIndexOf('/');

            if (n1 == -1) {
                return null;
            }

            int n2 = s.lastIndexOf('/', n1 - 1);

            if (n2 == -1) {
                return null;
            }

            String g = s.substring(0, n2).replace('/', '.');
            String middle = s.substring(n2 + 1, n1);
            String n = s.substring(n1 + 1);

            String classifier = null;
            if ("java-sources".equals(middle)) {
                classifier = "sources";
            } else if ("javadocs".equals(middle)) {
                classifier = "javadoc";
            } else if ("ejbs".equals(middle)
                    && (n.endsWith("client.jar") || n.endsWith("client.jar.sha1") || n.endsWith("client.jar.md5"))) {
                classifier = "client";
            }

            boolean checksum = false;
            Gav.HashType checksumType = null;
            if (s.endsWith(".md5")) {
                checksum = true;
                checksumType = Gav.HashType.md5;
                s = s.substring(0, s.length() - 4);
            } else if (s.endsWith(".sha1")) {
                checksum = true;
                checksumType = Gav.HashType.sha1;
                s = s.substring(0, s.length() - 5);
            }

            if (s.endsWith("maven-metadata.xml")) {
                return null;
            }

            String ext = s.substring(s.lastIndexOf('.') + 1);

            Matcher m = PAT1.matcher(n);
            if (m.matches()) {
                String a = m.group(1);
                String version = m.group(2);
                if (classifier != null) {
                    version = version.substring(0, version.length() - (classifier.length() + 1));
                }

                return new Gav(g, a, version, classifier, ext, null, null, n, checksum, checksumType, false, null);
            } else {
                m = PAT2.matcher(n);
                if (m.matches()) {
                    String a = m.group(1);
                    String version = m.group(2);
                    if (classifier != null) {
                        version = version.substring(0, version.length() - (classifier.length() + 1));
                    }

                    return new Gav(g, a, version, classifier, ext, null, null, n, checksum, checksumType, false, null);
                } else {
                    return null;
                }
            }
        } catch (IndexOutOfBoundsException e) {
            return null;
        }
    }