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https://issues.apache.org/jira/browse/CAMEL-12890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16658623#comment-16658623
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kalyan kumar bandi commented on CAMEL-12890:
--------------------------------------------

You are welcome Andrea.

I am glad that i was able to contribute to the open source community. 

 

> Camel Printer unable to print to the network printer
> ----------------------------------------------------
>
>                 Key: CAMEL-12890
>                 URL: https://issues.apache.org/jira/browse/CAMEL-12890
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-printer
>    Affects Versions: 2.17.0
>         Environment:  
> Camel version 2.17.0
> OS - RHEL Linux 
> Running as a standalone application with only following dependencies
>  * camel-core
>  * camel-spring
>  * camel-printer
>  
>            Reporter: kalyan kumar bandi
>            Assignee: Andrea Cosentino
>            Priority: Major
>              Labels: patch, ready-to-commit
>             Fix For: 2.22.2, 2.23.0, 2.21.4
>
>         Attachments: testCamelPrinter.xml
>
>
> Hi,
> We have developed a camel route to print a PDF file to a network printer that 
> is configured on the machine. The route looks as follows:
>  
> <route id="_route1">
>  <from uri="file:/opt/user/data?fileName=test.PDF&amp;noop=true"/>
>  <to 
> uri="lpr://1.2.3.4/B4-2nd-floor-right-wing?copies=1&amp;sides=Sides.ONE_SIDED&amp;mimeType=PDF&amp;mediaSize=na-letter&amp;flavor=DocFlavor.INPUT_STREAM&amp;sendToPrinter=true"/>
>  </route>
>  
> When this route is executed we see the following error:
> org.apache.camel.FailedToCreateProducerException: Failed to create Producer 
> for endpoint: 
> Endpoint[lpr://1.2.3.4:9100/B4-2nd-floor-right-wing?copies=1&flavor=DocFlavor.INPUT_STREAM&mediaSize=na-letter&mediaTray=AUTOSENSE&mimeType=PDF&orientation=portrait&sendToPrinter=true&sides=one-sided].
>  Reason: javax.print.PrintException: No printer found with name: 
> 1.2.3.4/B4-2nd-floor-right-wing. Please verify that the host and printer are 
> registered and reachable from this machine.
>  
> With DEBUG logs enabled, i can that it is using the following printer name.
> 2018-10-17 21:01:05,628 | DEBUG | xtenderThread-26 | PrinterProducer          
>         | 794 - org.apache.camel.camel-core - 2.17.0.redhat-630310 | Using 
> printer name: 1.2.3.4/B4-2nd-floor-right-wing
>  
> After more debugging came across the following code in PrinterProducer.java 
> in camel-printer component
> private int findPrinter(PrintService[] services, String printer) {
>  int position = -1;
>  for (int i = 0; i < services.length; i++) {
>  if (services[i].getName().toLowerCase().endsWith(printer.toLowerCase())) {
>  position = i;
>  break;
>  }
>  }
>  return position;
>  }
> Printer services configured on the machine are:
>  * B4-2nd-floor-right-wing
>  * B4-2nd-floor-left-wing
>  * B4-1st-floor-right-wing
>  * B4-1st-floor-left-wing
>  
> Here the if block condition
> {color:#FF0000}services[i].getName().toLowerCase().endsWith(printer.toLowerCase()){color}
>  will always evaluate to false. Because my service name is 
> "B4-2nd-floor-right-wing" and printerName in the URI is 
> "1.2.3.4/B4-2nd-floor-right-wing" so what you are checking is:
> {color:#FF0000}if 
> ("B4-2nd-floor-right-wing".toLowerCase().endsWith("1.2.3.4/B4-2nd-floor-right-wing".toLowerCase()){color}
>  which is always false
>  
> If  i change the condition to 
> ("1.2.3.4/B4-2nd-floor-right-wing".toLowerCase().endsWith("B4-2nd-floor-right-wing".toLowerCase())
>  then it works fine
>  
> I took the latest version (2.23.0-SNAPSHOT) from github which is also having 
> the same condition. Modified the single line and ran my route and it worked 
> fine. 
>  
> Note that the issue happens only when trying with remote printer and with 
> local printer it works fine. I tested with local printer in my windows PC and 
> it worked fine but none (Windows/Linux) worked with remote printer 
> configuration.
>  
> Thanks,
> Kalyan



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