package com.fsck.k9.mail.filter; import java.io.IOException; import java.io.OutputStream; /** * A simple OutputStream that does nothing but count how many bytes are written to it and * makes that count available to callers. */ public class CountingOutputStream extends OutputStream { private long mCount; public CountingOutputStream() { } public long getCount() { return mCount; } @Override public void write(int oneByte) throws IOException { mCount++; } }