[jira] Assigned: (CAMEL-1513) camel-csv : mutliple messages lead to repeated values

["Claus Ibsen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/activemq/browse/CAMEL-1513?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Claus Ibsen reassigned CAMEL-1513:
----------------------------------

    Assignee: Claus Ibsen

> camel-csv : mutliple messages lead to repeated values
> -----------------------------------------------------
>
>                 Key: CAMEL-1513
>                 URL: https://issues.apache.org/activemq/browse/CAMEL-1513
>             Project: Apache Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 2.0-M1
>            Reporter: Julien Faissolle
>            Assignee: Claus Ibsen
>            Priority: Minor
>
> I have this config : 
> {code:xml}
> <route>
>   <from uri="direct:msgIn"/>
>   <marshal><csv /></marshal>
>   <to uri="file://msgs?fileName=messages.csv" />
> </route>
> {code}
> I send Map objects with this :
> {code:java}
> ProducerTemplate template = context.createProducerTemplate();
> Map msg1 = new HashMap();
> msg1.put("A", 1);
> msg1.put("B", 1);
> Map msg2 = new HashMap();
> msg2.put("A", 2);
> msg2.put("B", 2);
> template.sendBody("direct:msgIn", msg1);
> template.sendBody("direct:msgIn", msg2);
> {code}
> This produces the following result :
> {code}
> 1,1
> 2,2,2,2
> {code}
> instead of 
> {code}
> 1,1
> 2,2
> {code}
> The more messages are pumped into the CSV marshaller, the more the values are repeated. This is because the marshal method in CsvDataFormat keeps adding columns to the config even if they are already present :
> {code:java|title=CsvDataFormat.java}
>   ........
>         CSVConfig conf = getConfig();
>         // lets add fields
>         Set set = map.keySet();
>         for (Object value : set) {
>             if (value != null) {
>                 String text = value.toString();
>                 CSVField field = new CSVField(text);
>                 conf.addField(field);
>             }
>         }
>         CSVWriter writer = new CSVWriter(conf);
>   .......
> {code}
> I think the marshal method should perform something like
> {code:java}
> if (config == null) {
>     config = createConfig();
>     // lets add fields
>     Set set = map.keySet();
>     for (Object value : set) {
>         if (value != null) {
>      ..............
> }
> {code}

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