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JT/400
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Component
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The jt400
component allows you to exchanges messages with an AS/400
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system
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using
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data
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queues.
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Maven
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users
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will
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need
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to
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add
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the
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following
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dependency
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to
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their
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pom.xml
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for
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this
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component:
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{code:xml} <dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-jt400</artifactId> <version>x.x.x</version> <!-- use the same version as your Camel core version --> </dependency> {code} h3. URI format {code} |
URI format
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jt400://user:password@system/QSYS.LIB/LIBRARY.LIB/QUEUE.DTAQ[?options]
{code}
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To
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call
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remote
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program
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(
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Camel
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2.7
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)
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} jt400://user:password@system/QSYS.LIB/LIBRARY.LIB/program.PGM[?options] {code} |
You
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can
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append
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query
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options
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to
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the
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URI
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in
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the
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following
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format,
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?option=value&option=value&...
URI options
For the data queue message exchange:
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For the remote program call (Camel 2.7)
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Usage
When configured as a consumer endpoint, the endpoint will poll a data queue on a remote system. For every entry on the data queue, a new Exchange
is sent with the entry's data in the In message's body, formatted either as a String
or a byte[]
, depending on the format. For a provider endpoint, the In message body contents will be put on the data queue as either raw bytes or text.
Connection pool
Available as of Camel 2.10
Connection pooling is in use from Camel 2.10 onwards. You can explicit configure a connection pool on the Jt400Component, or as an uri option on the endpoint.
Remote program call (Camel 2.7)
This endpoint expects the input to be either a String array or byte[] array (depending on format) and handles all the CCSID handling through the native jt400 library mechanisms. A parameter can be omitted by passing null as the value in its position (the remote program has to support it). After the program execution the endpoint returns either a String array or byte[] array with the values as they were returned by the program (the input only parameters will contain the same data as the beginning of the invocation)
This endpoint does not implement a provider endpoint!
Example
In the snippet below, the data for an exchange sent to the direct:george
endpoint will be put in the data queue PENNYLANE
in library BEATLES
on a system named LIVERPOOL
.
Another user connects to the same data queue to receive the information from the data queue and forward it to the mock:ringo
endpoint.
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}} h3. URI options For the data queue message exchange: {div:class=confluenceTableSmall} || Name || Default value || Description || | {{ccsid}} | default system CCSID | Specifies the CCSID to use for the connection with the AS/400 system. | | {{format}} | {{text}} | Specifies the data format for sending messages \\ valid options are: {{text}} (represented by {{String}}) and {{binary}} (represented by {{byte[]}}) | | {{consumer.delay}} | {{500}} | Delay in milliseconds between each poll. | | {{consumer.initialDelay}} | {{1000}} | Milliseconds before polling starts. | | {{consumer.userFixedDelay}} | {{false}} | {{true}} to use fixed delay between polls, otherwise fixed rate is used. See [ScheduledExecutorService|http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/ScheduledExecutorService.html] in JDK for details. | | {{guiAvailable}} | {{false}} | *Camel 2.8:* Specifies whether AS/400 prompting is enabled in the environment running Camel. | | {{keyed}} | {{false}} | *Camel 2.10:* Whether to use keyed or non-keyed data queues. | | {{searchKey}} | {{null}} | *Camel 2.10:* Search key for keyed data queues. | | {{searchType}} | {{EQ}} | *Camel 2.10:* Search type which can be a value of {{EQ}}, {{NE}}, {{LT}}, {{LE}}, {{GT}}, or {{GE}}. | {div} For the remote program call (*Camel 2.7*) {div:class=confluenceTableSmall} || Name || Default value || Description || | {{outputFieldsIdx}} | | Specifies which fields (program parameters) are output parameters. | | {{fieldsLength}} | | Specifies the fields (program parameters) length as in the AS/400 program definition. | {div} h3. Usage When configured as a consumer endpoint, the endpoint will poll a data queue on a remote system. For every entry on the data queue, a new {{Exchange}} is sent with the entry's data in the _In_ message's body, formatted either as a {{String}} or a {{byte[]}}, depending on the format. For a provider endpoint, the _In_ message body contents will be put on the data queue as either raw bytes or text. h4. Remote program call (*Camel 2.7*) This endpoint expects the input to be a String array and handles all the CCSID handling trough the native jt400 library mechanisms. After the program execution the endpoint returns a String array with the values as they were returned by the program (the input only parameters will contain the same data as the beginning of the invocation) This endpoint does not implement a provider endpoint! h3. Example In the snippet below, the data for an exchange sent to the {{direct:george}} endpoint will be put in the data queue {{PENNYLANE}} in library {{BEATLES}} on a system named {{LIVERPOOL}}. \\ Another user connects to the same data queue to receive the information from the data queue and forward it to the {{mock:ringo}} endpoint. {code:java} public class Jt400RouteBuilder extends RouteBuilder { @Override public void configure() throws Exception { from("direct:george").to("jt400://GEORGE:EGROEG@LIVERPOOL/QSYS.LIB/BEATLES.LIB/PENNYLANE.DTAQ"); from("jt400://RINGO:OGNIR@LIVERPOOL/QSYS.LIB/BEATLES.LIB/PENNYLANE.DTAQ").to("mock:ringo"); } } {code} h4. Remote program call example (*Camel |
Remote program call example (Camel 2.7
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)
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In
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the
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snippet
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below,
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the
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data
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Exchange
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sent
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to
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the
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direct:work
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endpoint
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will
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contain
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three
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string
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that
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will
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be
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used
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as
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the
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arguments
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for
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the
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program
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“compute”
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in
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the
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library
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“assets”.
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This
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program
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will
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write
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the
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output
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values
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in
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the
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2nd
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and
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3rd
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parameters.
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All
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the
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parameters
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will
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be
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sent
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to
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the
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direct:play
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endpoint.
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{code:java} public class Jt400RouteBuilder extends RouteBuilder { @Override public void configure() throws Exception { from("direct:work").to("jt400://GRUPO:ATWORK@server/QSYS.LIB/assets.LIB/compute.PGM?fieldsLength=10,10,512&ouputFieldsIdx=2,3").to(“direct:play”); } } {code} h4. Writing to keyed |
Writing to keyed data queues
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data queues
{code}
from("jms:queue:input")
.to("jt400://username:password@system/lib.lib/MSGINDQ.DTAQ?keyed=true");
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Reading from keyed data queues
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{code} h4. Reading from keyed data queues {code} from("jt400://username:password@system/lib.lib/MSGOUTDQ.DTAQ?keyed=true&searchKey=MYKEY&searchType=GE") .to("jms:queue:output"); {code} {include:Endpoint See Also} |
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