public PackageId()

in vault-core/src/main/java/org/apache/jackrabbit/vault/packaging/PackageId.java [67:137]
66 lines of code
20 McCabe index (conditional complexity)

    public PackageId(String path) {
        fromPath = true;
        path = path.trim();
        int idx = path.lastIndexOf('.');
        if (idx > 0) {
            String ext = path.substring(idx);
            if (".zip".equalsIgnoreCase(ext) || ".jar".equalsIgnoreCase(ext)) {
                path = path.substring(0, idx);
            }
        }
        idx = path.lastIndexOf('/');
        String name;
        if (idx < 0) {
            name = path;
            this.group = "";
        } else {
            name = path.substring(idx + 1);
            String grp = path.substring(0, idx);
            if (grp.equals(ETC_PACKAGES)) {
                grp = "";
            } else if (grp.startsWith(ETC_PACKAGES_PREFIX)) {
                grp = grp.substring(ETC_PACKAGES_PREFIX.length());
            } else if (grp.startsWith("/")) {
                grp = grp.substring(1);
            }
            this.group = grp;
        }
        // check if name contains a version
        String[] segs = Text.explode(name, '-');
        int i=segs.length-1;
        while (i>0) {
            try {
                // accept numbers < 1000 (hotfix case)
                if (Integer.parseInt(segs[i]) >= 1000) {
                    break;
                }
            } catch (NumberFormatException e) {
                // ignore
            }
            // check if starts with a letter'
            if (Character.isJavaIdentifierStart(segs[i].charAt(0))) {
                // then need a digit
                if (segs[i].length() == 1 || !Character.isDigit(segs[i].charAt(1)) && !"SNAPSHOT".equals(segs[i])) {
                    break;
                }
            }
            i--;
        }
        if (i == segs.length-1) {
            this.name = name;
            version = Version.EMPTY;
        } else {
            StringBuilder str = new StringBuilder();
            for (int j = 0; j<= i; j++) {
                if (j > 0) {
                    str.append('-');
                }
                str.append(segs[j]);
            }
            this.name = str.toString();
            str.setLength(0);
            for (int j = i+1; j<segs.length; j++) {
                if (j > i+1) {
                    str.append('-');
                }
                str.append(segs[j]);
            }
            this.version = Version.create(str.toString());
        }
        this.str = getString(group, this.name, version);
    }