ASCIIChannel Invalid message length

[Hipólito López]

Hi to all,

I'm getting a hard time to find out why I'm getting this error when try to read a message from host:

"org.jpos.iso.ISOException: Invalid message length"

I know this is a problem with the length of the message, but according to the host LOG the message is ok. This is my channel:

<?xml version="1.0" encoding="UTF-8"?>

<channel-adaptor class="org.jpos.q2.iso.ChannelAdaptor" logger="Q2" 

        name="auth-channel"> 

<channel class="org.jpos.iso.channel.ASCIIChannel" 

logger="Q2" 

packager="org.jpos.iso.packager.ISO87APackager"

                 header="020131129223100ISO0060000450000"

                 override-header="true">

<property name="host" value="localhost"/> 

   <property name="port" value="1717" /> 

</channel>

<in>auth-send</in> 

        <out>auth-receive</out> 

</channel-adaptor>

I'm able to send the message ok, but when I got the response I got the length error, the message from host is:

<00880082020131129233809ISO006000045081082200000020000000400000000000000092521031601530100301>

According to the ASCIIChannel the first 4 bytes are the length (0088), then the header and the ISO message, and I think is ok.

do I'm missing something? any help?

Thanks in advance.

...q2.log...

  <receive>

    <isomsg direction="incoming">

      <!-- org.jpos.iso.packager.ISO87APackager -->

      <header>3030383230323031333131323932333338303949534F303036303030303435</he

ader>

      <field id="0" value="0810"/>

      <field id="7" value="0925210316"/>

      <field id="11" value="015301"/>

      <field id="39" value="00"/>

      <field id="70" value="301"/>

    </isomsg>

  </receive>

</log>

<log realm="channel/127.0.0.1:1717" at="Fri Nov 29 23:38:09 BOT 2013.224">

  <receive>

    <iso-exception>

      Invalid message length

      org.jpos.iso.ISOException: Invalid message length

        at org.jpos.iso.channel.ASCIIChannel.getMessageLength(ASCIIChannel.java:

103)

        at org.jpos.iso.BaseChannel.receive(BaseChannel.java:665)

        at org.jpos.q2.iso.ChannelAdaptor$Receiver.run(ChannelAdaptor.java:319)

        at java.lang.Thread.run(Thread.java:722)

    </iso-exception>

  </receive>

</log>

[chi...@gmail.com]

Here is a thought, since the <receive>  is visible and displays a correctly unpacked message, I don't think there is a problem there. May be the sender is sending more bytes then necessary which causes the channel to treat it as a new message trailing the existing one or the sender is sending more data after sending the response which is not valid (may be a 0 byte ping packet). See if you can add a TCP sniffer to see the data exchanged on the line or add a isoutil.hexdump in the basechannels receive method or where it determines the message length by grabbing the bytes.

-chhil

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