Why Message Object does not represent file content?

taslimanka — Fri, 15 Nov 2024 23:56:26 GMT

Hi all,

I am a newbie on talend ESB.

I'm trying to get the content of files put in the source folder. And for that, I typed in the following expression.

System.out.println("File content: "+exchange.getIn().getBody());

Unfortunately it doesn't print the file I put content's.

Example: when I put a text file containing "lorem ipsum" , I am expecting to print that content to the output console but instead I get printed to the console GenericFile[C:\rep1\Finish.log] (see image below)

So I want to figure out why Message object doesn't represent the file content.

Thanx!

Re: Why Message Object does not represent file content?

gjeremy1617088143 — Mon, 19 Jul 2021 08:15:53 GMT

Hi ,@mohamed sylla ,

maybe you can try :

System.out.println("File content: "+ new String((byte[]) exchange.getIn().getBody()));

let me know if it's working.

Send me love and Kudos

Re: Why Message Object does not represent file content?

taslimanka — Mon, 19 Jul 2021 12:49:32 GMT

Hi gjeremy,

Unfortunately I get an error with your code. Find below the error !![

ERROR]: org.apache.camel.processor.DefaultErrorHandler - Failed delivery for (MessageId: ID-LAPTOP-FDV0N478-1626698516345-0-2 on ExchangeId: ID-LAPTOP-FDV0N478-1626698516345-0-1). Exhausted after delivery attempt: 1 caught: java.lang.ClassCastException: org.apache.camel.component.file.GenericFile cannot be cast to [B

Message History

---------------------------------------------------------------------------------------------------------------------------------------

RouteId ProcessorId Processor Elapsed (ms)

[Lab4_route1_cFile_] [Lab4_route1_cFile_] [file://C:/rep1?autoCreate=true&bufferSize=128&flatten=true&noop=false ] [ 8]

[Lab4_route1_cFile_] [Lab4_route1_cProce] [Processor@0x6ebaaba3 ] [ 3]

Stacktrace

---------------------------------------------------------------------------------------------------------------------------------------

java.lang.ClassCastException: org.apache.camel.component.file.GenericFile cannot be cast to [B

at demoesb.lab4_route1_0_1.Lab4_route1$1.process(Lab4_route1.java:145)

at org.apache.camel.processor.DelegateSyncProcessor.process(DelegateSyncProcessor.java:63)

at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:110)

at demoesb.lab4_route1_0_1.Lab4_route1$2$1$1.process(Lab4_route1.java:224)

at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:110)

at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548)

at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)

at org.apache.camel.processor.Pipeline.process(Pipeline.java:138)

at org.apache.camel.processor.Pipeline.process(Pipeline.java:101)

at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)

at org.apache.camel.component.file.GenericFileConsumer.processExchange(GenericFileConsumer.java:452)

at org.apache.camel.component.file.GenericFileConsumer.processBatch(GenericFileConsumer.java:219)

at org.apache.camel.component.file.GenericFileConsumer.poll(GenericFileConsumer.java:183)

at org.apache.camel.impl.ScheduledPollConsumer.doRun(ScheduledPollConsumer.java:174)

at org.apache.camel.impl.ScheduledPollConsumer.run(ScheduledPollConsumer.java:101)

at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)

at java.util.concurrent.FutureTask.runAndReset(Unknown Source)

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source)

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

Re: Why Message Object does not represent file content?

gjeremy1617088143 — Mon, 19 Jul 2021 13:00:47 GMT

it seem you can use the getFile()method of org.apache.camel.component.file.GenericFile to get the file,

then you have to read his content

with common io package for example

String data = FileUtils.readFileToString(your file, "UTF-8");

topic Re: Why Message Object does not represent file content? in Talend Studio

Why Message Object does not represent file content?

Re: Why Message Object does not represent file content?

Re: Why Message Object does not represent file content?

Re: Why Message Object does not represent file content?