protected LinkedHashSet getPossibleServiceURIsToLookup()

in taverna-credential-manager-impl/src/main/java/org/apache/taverna/security/credentialmanager/impl/CredentialManagerImpl.java [885:941]

38 lines of code
11 McCabe index (conditional complexity)


	protected LinkedHashSet<URI> getPossibleServiceURIsToLookup(URI serviceURI,
			boolean usePathRecursion) {
		try {
			serviceURI = serviceURI.normalize();
			serviceURI = dnParser.setUserInfoForURI(serviceURI, null);
		} catch (URISyntaxException ex) {
			logger.warn("Could not strip userinfo from " + serviceURI, ex);
		}

		/*
		 * We'll use a LinkedHashSet to avoid checking for duplicates, like if
		 * serviceURI.equals(withoutQuery) Only the first hit should be added to
		 * the set.
		 */
		LinkedHashSet<URI> possibles = new LinkedHashSet<URI>();

		possibles.add(serviceURI);
		if (!usePathRecursion || !serviceURI.isAbsolute())
			return possibles;

		/*
		 * We'll preserve the fragment, as it is used to indicate the realm
		 */
		String rawFragment = serviceURI.getRawFragment();
		if (rawFragment == null)
			rawFragment = "";

		URI withoutQuery = serviceURI.resolve(serviceURI.getRawPath());
		addFragmentedURI(possibles, withoutQuery, rawFragment);

		// Immediate parent
		URI parent = withoutQuery.resolve(".");
		addFragmentedURI(possibles, parent, rawFragment);
		URI oldParent = null;
		// Top parent (to be added later)
		URI root = parent.resolve("/");
		while (!parent.equals(oldParent) && !parent.equals(root)
				&& parent.getPath().length() > 0) {
			// Intermediate parents, but not for "http://bla.org" as we would
			// find "http://bla.org.."
			oldParent = parent;
			parent = parent.resolve("..");
			addFragmentedURI(possibles, parent, rawFragment);
		}
		// In case while-loop did not do so, also include root
		addFragmentedURI(possibles, root, rawFragment);
		if (rawFragment.length() > 0)
			// Add the non-fragment versions in the bottom of the list
			for (URI withFragment : new ArrayList<>(possibles))
				try {
					possibles
							.add(dnParser.setFragmentForURI(withFragment, null));
				} catch (URISyntaxException e) {
					logger.warn("Could not non-fragment URI " + withFragment);
				}
		return possibles;
	}