private static void joinPath()

in curator-client/src/main/java/org/apache/curator/utils/ZKPaths.java [456:498]
34 lines of code
12 McCabe index (conditional complexity)

    private static void joinPath(StringBuilder path, String parent, String child) {
        // Add parent piece, with no trailing slash.
        if ((parent != null) && (parent.length() > 0)) {
            if (parent.charAt(0) != PATH_SEPARATOR_CHAR) {
                path.append(PATH_SEPARATOR_CHAR);
            }
            if (parent.charAt(parent.length() - 1) == PATH_SEPARATOR_CHAR) {
                path.append(parent, 0, parent.length() - 1);
            } else {
                path.append(parent);
            }
        }

        if ((child == null)
                || (child.length() == 0)
                || (child.length() == 1 && child.charAt(0) == PATH_SEPARATOR_CHAR)) {
            // Special case, empty parent and child
            if (path.length() == 0) {
                path.append(PATH_SEPARATOR_CHAR);
            }
            return;
        }

        // Now add the separator between parent and child.
        path.append(PATH_SEPARATOR_CHAR);

        int childAppendBeginIndex;
        if (child.charAt(0) == PATH_SEPARATOR_CHAR) {
            childAppendBeginIndex = 1;
        } else {
            childAppendBeginIndex = 0;
        }

        int childAppendEndIndex;
        if (child.charAt(child.length() - 1) == PATH_SEPARATOR_CHAR) {
            childAppendEndIndex = child.length() - 1;
        } else {
            childAppendEndIndex = child.length();
        }

        // Finally, add the child.
        path.append(child, childAppendBeginIndex, childAppendEndIndex);
    }