protected void processJar()

in hawtio-util/src/main/java/io/hawt/util/introspect/support/ClassScanner.java [440:472]

31 lines of code
9 McCabe index (conditional complexity)


    protected void processJar(ClassResource classResource, Set<Class<?>> classes, String filter, Integer limit) {
        URL resource = classResource.getResource();
        String packageName = classResource.getPackageName();
        String relativePath = getPackageRelativePath(packageName);
        String jarPath = getJarPath(resource);
        JarFile jarFile;
        try {
            jarFile = new JarFile(jarPath);
        } catch (IOException e) {
            LOG.debug("IOException reading JAR '" + jarPath + ". Reason: " + e, e);
            return;
        }
        Enumeration<JarEntry> entries = jarFile.entries();
        while (entries.hasMoreElements() && withinLimit(limit, classes)) {
            JarEntry entry = entries.nextElement();
            String entryName = entry.getName();
            String className = null;
            if (entryName.endsWith(".class") && entryName.startsWith(relativePath) && entryName.length() > (relativePath.length() + 1)) {
                className = entryName.replace('/', '.').replace('\\', '.').replace(".class", "");
            }
            Class<?> aClass = tryFindClass(className, filter);
            if (aClass != null) {
                classes.add(aClass);
            }
        }

        // let's not leak resources
        try {
            jarFile.close();
        } catch (IOException e) {
            LOG.debug("IOException closing JAR '" + jarPath + "'. Reason: " + e, e);
        }
    }