private ResourceManager getDocumentRootResourceManager()

in spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/undertow/UndertowServletWebServerFactory.java [331:364]

34 lines of code
7 McCabe index (conditional complexity)


	private ResourceManager getDocumentRootResourceManager() {
		File root = getValidDocumentRoot();
		File docBase = getCanonicalDocumentRoot(root);
		List<URL> metaInfResourceUrls = getUrlsOfJarsWithMetaInfResources();
		List<URL> resourceJarUrls = new ArrayList<>();
		List<ResourceManager> managers = new ArrayList<>();
		ResourceManager rootManager = (docBase.isDirectory() ? new FileResourceManager(docBase, 0)
				: new JarResourceManager(docBase));
		if (root != null) {
			rootManager = new LoaderHidingResourceManager(rootManager);
		}
		managers.add(rootManager);
		for (URL url : metaInfResourceUrls) {
			if ("file".equals(url.getProtocol())) {
				try {
					File file = new File(url.toURI());
					if (file.isFile()) {
						resourceJarUrls.add(new URL("jar:" + url + "!/"));
					}
					else {
						managers.add(new FileResourceManager(new File(file, "META-INF/resources"), 0));
					}
				}
				catch (Exception ex) {
					throw new RuntimeException(ex);
				}
			}
			else {
				resourceJarUrls.add(url);
			}
		}
		managers.add(new MetaInfResourcesResourceManager(resourceJarUrls));
		return new CompositeResourceManager(managers.toArray(new ResourceManager[0]));
	}