ReadTimeoutHandler Class — netty Architecture

Source Code

handler/src/main/java/io/netty/handler/timeout/ReadTimeoutHandler.java lines 62–103

public class ReadTimeoutHandler extends IdleStateHandler {
    private boolean closed;

    /**
     * Creates a new instance.
     *
     * @param timeoutSeconds
     *        read timeout in seconds
     */
    public ReadTimeoutHandler(int timeoutSeconds) {
        this(timeoutSeconds, TimeUnit.SECONDS);
    }

    /**
     * Creates a new instance.
     *
     * @param timeout
     *        read timeout
     * @param unit
     *        the {@link TimeUnit} of {@code timeout}
     */
    public ReadTimeoutHandler(long timeout, TimeUnit unit) {
        super(timeout, 0, 0, unit);
    }

    @Override
    protected final void channelIdle(ChannelHandlerContext ctx, IdleStateEvent evt) throws Exception {
        assert evt.state() == IdleState.READER_IDLE;
        readTimedOut(ctx);
    }

    /**
     * Is called when a read timeout was detected.
     */
    protected void readTimedOut(ChannelHandlerContext ctx) throws Exception {
        if (!closed) {
            ctx.fireExceptionCaught(ReadTimeoutException.INSTANCE);
            ctx.close();
            closed = true;
        }
    }
}