Im having trouble trying to attach different paths to a FROM Uri in the Xml configuration file, in java it can be done like this:
String[] uris = new String[]{"file:source/path1","file:source/path2"};
from (uris).to("file:dest/path")
The resulting route will move the files from the source paths to the destination path, how can i achieve this using Spring XML? i have been trying different aproachs and can't find to have any of them working
<route id="bar">
<from uri= "file:source/path1,file:source/path2" />
<to uri="file:dest/path"/>
</route>
Fabian
You can have multiple from :
<route id="bar">
<from uri="file:source/path1"/>
<from uri="file:source/path2"/>
<to uri="file:dest/path"/>
</route>
This create one RouteDefinition, but 2 Route instances
Related
I have created multiple routes(say department, Employee) which takes input from file system folders(say department, Empployee) and process those files.
Now, I want to make them dependent. So, if I upload both emp.csv and dept.csv in those folders then it will process department file first and once complete it will start processing file for employee.
is there any way in camel to achieve this.
I looked at Route startupOrdering and AutoStartup feature, but it will work only for the first time when starting routes. However, I need same behavior for entire route life.
Thanks.
<route id="b" xmlns="http://camel.apache.org/schema/spring">
<from uri="file:/home/dev/code/Integration/RunCamleExample/src/main/resources/csv/Department?repeatCount=1&noop=true&delay=10000"/>
<log message="Department data is : ${body}"/>
</route>
<route id="employee" xmlns="http://camel.apache.org/schema/spring">
<from uri="file:/home/dev/code/Integration/RunCamleExample/src/main/resources/csv/Employee?noop=true&delay=10000"/>
<log message="Employee data is : ${body}"/>
</route>
I suggest to use other logic to handle the task. Two simple ways to go:
Use pollEnrich
Use pollEnrich to collect extra resource (e.g. a file with known name in file system) once at the middle of a route
Flow: Collect department files (From Endpoint) --(for each department file from file system) -> collect single employee file (trigger pollEnrich once with known name) ----> do anything else (if any)
Use ControlBus
Use ControlBus component to control the status of routes (only one of the route in 'start' status)
Flow: Start route A --(when route A complete its goal)-> Suspend route A ---> Start route B --(when route B complete its goal)-> Suspend route B ---> Start route A [loop back to head]
Dependent route execution first can be achieved in Camel using "RouteContext".
Example: If route 'A' is executed before route 'B' then route 'A' should be defined as 'RouteContext' and route be is defined inside "camelContext" like below:
<routeContext id="A" xmlns="http://camel.apache.org/schema/spring">
<route id="A">
<from uri="file:/home/dev/code/Integration/RunCamleExample/src/main/resources/csv/Department?repeatCount=1&noop=true&delay=10000"/>
<log message="Department data is : ${body}"/>
</route>
</routeContext>
Then regular "camelContext" should be defined with reference to this routeContext first.
<camelContext id="test" xmlns="http://camel.apache.org/schema/spring">
<routeContextRef ref="A"/>
<route id="B">
<from uri="file:/home/dev/code/Integration/RunCamleExample/src/main/resources/csv/Employee?noop=true&delay=10000"/>
<log message="Employee data is : ${body}"/>
</route>
</camelContext>
I'm using a ActiveMQ Broker with built-in Camel Routes. I want to read a file after an Event received.
<pseudo>
from Event A
read File XY
to Event B with Body from File XY
</pseuod>
I simple tried moving files from a temporary directory based on an event but only event B is written. In the Log file are no Exceptions or Error messages.
<camelContext id="camel" xmlns="http://camel.apache.org/schema/spring">
<!-- You can use Spring XML syntax to define the routes here using the <route> element -->
<route>
<description>Example Camel Route</description>
<from uri="activemq:example.A"/>
<from uri="file://tmp/a?delete=true"/>
<to uri="file://tmp/b?overruleFile=copy-of-${file:name}"/>
<to uri="activemq:example.B"/>
</route>
</camelContext>
Update with working solution for single file:
<camelContext id="camel" xmlns="http://camel.apache.org/schema/spring">
<!-- You can use Spring XML syntax to define the routes here using the <route> element -->
<route>
<description>Example Camel Route</description>
<from uri="activemq:example.A"/>
<pollEnrich>
<constant>file:///tmp/a?fileName=file1</constant>
</pollEnrich>
<log message="file content ${body}"/>
<to uri="activemq:example.B"/>
</route>
</camelContext>
You need to use Content Enrichers for this. This is exactly what you are looking for.
<route>
<from uri="activemq:example.A"/>
<pollEnrich>
<constant>file://tmp/a?delete=true</constant>
</pollEnrich>
<to uri="activemq:example.B"/>
</route>
Please be aware that for camel version 2.15 or older
pollEnrich does not access any data from the current Exchange which
means when polling it cannot use any of the existing headers you may
have set on the Exchange. For example you cannot set a filename in the
Exchange.FILE_NAME header and use pollEnrich to consume only that
file. For that you must set the filename in the endpoint URI.
I'm writing one camel application using blueprint.I have two routes which calls same class beans but for different case(Handled that in class based on route id).I want to start second route only when first route completes it's execution(sequentially instead of parallel).So is there any way to do the same.Following is my code-
<camelContext id="test"
xmlns="http://camel.apache.org/schema/blueprint">
<route id="1">
<from uri="timer"/>
<to uri="bean:test"/>
</route>
<route id="2">
<from uri="timer"/>
<to uri="bean:test"/>
</route>
</camelContext>
Thanks
Routes are started when camel context is bootstrapped. You're probably looking for the exchange to be routed to "route2" after it's been processed by "route1"
That sounds like the same route. You have a few options for reusing a bean while implementing different behavior. The easiest one IMO from where you are is using different methods:
class TestBean {
void test1(){}
void test2(){}
}
Then changing your route config:
<route id="1">
<from uri="timer"/>
<to uri="bean:test?method=test1"/>
<to uri="bean:test?method=test2"/>
</route>
Of course you can change to make these be different beans...
Before explaining my problem I would state here that I am completely new to camel file processing. I have a requirement to read the file from a directory do some processing and delete them. This was a very high level requirement and I am able to achieve this using camel. But now I've got some new requirements as stated below. Need help on that.
Create this application as a job and trigger it by reading another directory where some specific files would be dropped other wise it should kicked of by its own every 15-20 minutes.
Before triggering the actual application make sure that the directory has some specific number of files present (say 25 files)
If all files are present - execute a method to create a unique tracking ID for all these 25 files. If I have a unique ID how can I make it available through multiple routes?
As of now I have tried implementing routepolicy but since I have never used it earlier I need some guidance so that I can go ahead with this.
1. Separe your route logic from route triggering
<route id="TriggerFromFile">
<from uri="file:triggerFolder" />
<log message="Triggered from file" />
<to uri="direct:startLogic" />
<route>
<route id="TriggerFromTimer">
<from uri="timer:triggerTimer?period=15m" />
<log message="Triggered from timer" />
<to uri="direct:startLogic" />
</route>
<route id="Logic>
<from uri="direct:startLogic" />
<to uri="..." />
</route>
2. Count the number of files and use that as a filter
Define a bean that counts the number of files in the dir, set that number
as body and validate using a filter.
<route id="TriggerFromFile">
<from uri="file:triggerFolder" />
<log message="Triggered from file" />
<to uri="direct:countFile" />
<route>
<route id="TriggerFromTimer">
<from uri="timer:triggerTimer?period=15m" />
<log message="Triggered from timer" />
<to uri="direct:countFile" />
</route>
<route id="FileCount">
<from uri="direct:countFile" />
<to uri="bean:countFilesInDir" />
<log message="There are ${body} files the directory" />
<filter>
<simple>${body} >= 25</simple>
<to uri="direct:startLogic" />
</filter>
</route>
<route id="Logic">
<from uri="direct:startLogic" />
<to uri="..." />
</route>
3. Set a Header to your Exchange's message before sending it to other routes
When Camel sends an Exchange between routes, headers and properties are copied.
Calculate a unique id in some way (concatenate file names, md5 of content, file modification timestamp....) and set it in a Header.
An header can hold any java object.
I'm trying to make a route that will process big xml files using camel-stax. A file content processing works fine, but at the end it fails with a following error:
Caused by: java.io.IOException: Renaming file from: C:\workdir\file.xml to: C:\workdir\.camel\file.xml failed due cannot delete from file: C:\workdir\file.xml after copy succeeded
It seems that camel doesn't close a file input stream, so after processing it cannot move a file to a target location. Of course, I can set noop=true, bit I wanted to remove processed files.
My route looks like following:
<route id="myRoute">
<from uri="file:{{working_dir}}?include=file.xml" />
<split streaming="true">
<ref>staxRecord</ref>
<to uri="log:test"/>
</split>
</route>
Initially it was a little bit more complex and I simplified it as possible. Now it looks just like a last sample from here http://camel.apache.org/stax.
Additional note: I execute the route on Windows. Camel version: 2.12.2.
So it looks like a bug in the camel-stax component.
I've found an alternative way of how to deal with big xml files. I've rewritten my route as following:
<route id="myRoute">
<from uri="file:{{working_dir}}?include=file.xml&delete=true" />
<split streaming="true">
<tokenize token="entry" xml="true"/>
<unmarshal ref="myJaxb"/>
<!-- ... -->
</split>
</route>