Hi Mike,
check if
http://hl7api.sourceforge.net/base/apidocs/ca/uhn/hl7v2/preparser/PreParser.html
would help in your case, when you just need to extract a single field.
cheers
Christian
Am 29.06.2017 um 03:17 schrieb Mike Mills:
Hi,
Are the any efforts being made to improve the performance of parsing
an hl7 message?
I am considering dropping parsing of messages using hapi because of
the CPU load and memory requirements.
It seems like Hapi parses like a DOM parser as it goes though the
entire message.
It would be good if the message was lazily parsed so that no parsing
occurs until a teaser.get call is made, or an accessor called on the
concrete message object returned from parse(). When the terser path is
executed only the required segment/group/field/sub fields are
processed to retrieve the desired value.
That way, if we wanted just the MSH9-2 the copy expense of parsing an
entire message is not required.
My initial performance testing indicates that the JVM dropped from 10%
CPU usage with Hapi to 3% CPU usage when using string.split().
Are there efforts being made to address the performance of Hapi?
Kind regards.
Mike
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