private static List normalizeDynamicImportClauses()

in repository/service/src/main/java/org/apache/karaf/cave/repository/service/bundlerepository/ResourceBuilder.java [435:481]
30 lines of code
14 McCabe index (conditional complexity)

    private static List<ParsedHeaderClause> normalizeDynamicImportClauses(List<ParsedHeaderClause> clauses) throws BundleException {
        // Verify that the values are equals if the package specifies
        // both version and specification-version attributes.
        for (ParsedHeaderClause clause : clauses) {
            // Add the resolution directive to indicate that these are
            // dynamic imports.
            clause.dirs.put(Constants.RESOLUTION_DIRECTIVE, RESOLUTION_DYNAMIC);

            // Check for "version" and "specification-version" attributes
            // and verify they are the same if both are specified.
            Object v = clause.attrs.get(Constants.VERSION_ATTRIBUTE);
            Object sv = clause.attrs.get(Constants.PACKAGE_SPECIFICATION_VERSION);
            if ((v != null) && (sv != null)) {
                // Verify they are equal.
                if (!((String) v).trim().equals(((String) sv).trim())) {
                    throw new IllegalArgumentException(
                            "Both version and specification-version are specified, but they are not equal.");
                }
            }

            // Ensure that only the "version" attribute is used and convert
            // it to the VersionRange type.
            if ((v != null) || (sv != null)) {
                clause.attrs.remove(Constants.PACKAGE_SPECIFICATION_VERSION);
                v = (v == null) ? sv : v;
                clause.attrs.put(Constants.VERSION_ATTRIBUTE, VersionRange.parseVersionRange(v.toString()));
            }

            // If bundle version is specified, then convert its type to VersionRange.
            v = clause.attrs.get(Constants.BUNDLE_VERSION_ATTRIBUTE);
            if (v != null) {
                clause.attrs.put(Constants.BUNDLE_VERSION_ATTRIBUTE, VersionRange.parseVersionRange(v.toString()));
            }

            // Dynamic imports can have duplicates, so verify that java.*
            // packages are not imported.
            for (String pkgName : clause.paths) {
                if (pkgName.startsWith("java.")) {
                    throw new BundleException("Dynamically importing java.* packages not allowed: " + pkgName);
                } else if (!pkgName.equals("*") && pkgName.endsWith("*") && !pkgName.endsWith(".*")) {
                    throw new BundleException("Partial package name wild carding is not allowed: " + pkgName);
                }
            }
        }

        return clauses;
    }