int getProcessed() {
            return processed.get();
        }
Simple single-threaded class that calls tika-app against every file in a directory.
<p>
This is exceedingly robust.  One file per process.
<p>
However, you can use this to compare performance against tika-batch fs code.
tika-batch/src/main/java/org/apache/tika/batch/fs/strawman/StrawManTikaAppDriver.java