public void init()

in commons-vfs2/src/main/java/org/apache/commons/vfs2/provider/tar/TarFileSystem.java [197:240]
33 lines of code
7 McCabe index (conditional complexity)

    public void init() throws FileSystemException {
        super.init();

        // Build the index
        try {
            TarArchiveEntry entry;
            while ((entry = getTarFile().getNextTarEntry()) != null) {
                final AbstractFileName name = (AbstractFileName) getFileSystemManager().resolveName(getRootName(),
                    UriParser.encode(entry.getName(), ENC));

                // Create the file
                TarFileObject fileObj;
                if (entry.isDirectory() && getFileFromCache(name) != null) {
                    fileObj = (TarFileObject) getFileFromCache(name);
                    fileObj.setTarEntry(entry);
                    continue;
                }

                fileObj = createTarFileObject(name, entry);
                putFileToCache(fileObj);

                // Make sure all ancestors exist
                // TODO - create these on demand
                TarFileObject parent = null;
                for (AbstractFileName parentName = (AbstractFileName) name
                    .getParent(); parentName != null; fileObj = parent, parentName = (AbstractFileName) parentName
                        .getParent()) {
                    // Locate the parent
                    parent = (TarFileObject) getFileFromCache(parentName);
                    if (parent == null) {
                        parent = createTarFileObject(parentName, null);
                        putFileToCache(parent);
                    }

                    // Attach child to parent
                    parent.attachChild(fileObj.getName());
                }
            }
        } catch (final IOException e) {
            throw new FileSystemException(e);
        } finally {
            closeCommunicationLink();
        }
    }