void initialize()

in src/main/java/org/apache/maven/plugins/war/overlay/OverlayManager.java [106:153]
36 lines of code
11 McCabe index (conditional complexity)

    void initialize(String[] defaultIncludes, String[] defaultExcludes, Overlay currentProjectOverlay)
            throws InvalidOverlayConfigurationException {

        // Build the list of configured artifacts and makes sure that each overlay
        // refer to a valid artifact
        final List<Artifact> configuredWarArtifacts = new ArrayList<>();
        final ListIterator<Overlay> it = overlays.listIterator();
        while (it.hasNext()) {
            Overlay overlay = it.next();
            if (overlay == null) {
                throw new InvalidOverlayConfigurationException("overlay could not be null.");
            }
            // If it's the current project, return the project instance
            if (overlay.isCurrentProject()) {
                overlay = currentProjectOverlay;
                it.set(overlay);
            }
            // default includes/excludes - only if the overlay uses the default settings
            if (Arrays.equals(Overlay.DEFAULT_INCLUDES, overlay.getIncludes())
                    && Arrays.equals(Overlay.DEFAULT_EXCLUDES, overlay.getExcludes())) {
                overlay.setIncludes(defaultIncludes);
                overlay.setExcludes(defaultExcludes);
            }

            final Artifact artifact = getAssociatedArtifact(overlay);
            if (artifact != null) {
                configuredWarArtifacts.add(artifact);
                overlay.setArtifact(artifact);
            }
        }

        // Build the list of missing overlays
        for (Artifact artifact : artifactsOverlays) {
            if (!configuredWarArtifacts.contains(artifact)) {
                // Add a default overlay for the given artifact which will be applied after
                // the ones that have been configured
                overlays.add(new DefaultOverlay(artifact, defaultIncludes, defaultExcludes));
            }
        }

        // Final validation, make sure that the current project is in there. Otherwise add it first
        for (Overlay overlay : overlays) {
            if (overlay.equals(currentProjectOverlay)) {
                return;
            }
        }
        overlays.add(0, currentProjectOverlay);
    }