Thanks Christian for the valuable inputs they really helped a lot
On Fri, Jul 22, 2011 at 11:13 AM, Christian Schneider <
[email protected]> wrote:
> You can already create a route that can adapt to changes without
> compilation.
>
> Just do:
>
> from("file:data/csv?noop=true"**).unmarshal().csv().bean(new
> CSVConverterBean(),"**toDefaultXml").to("xslt:**toMyScheme.xsl").to("file:
> **data/csvoutput?fileName=test.**xml");
>
> Just change the CSVConverterBean to create the default xml I described and
> let xslt do the conversion to your special format. You can store the xsl
> file at a place outside the jar that allows you to change it easily.
>
> Christian
>
>
>
> Am 22.07.2011 04:19, schrieb shekher awasthi:
>
> Thanks Christion and Lukasz for the help.
>> i still have doubt about what Lukasz has suggested, my concern is to
>> avoid
>> the the use of CSVConverterBean java class which actually is mapping the
>> data being provided my camel csv unmarshal to the JaxB generated classes.
>>
>> using JaxB is not a big concern and can switch to XStream but the big
>> challange is to avoid using the mappping class and use some configuration
>> file for mapping so that we can at later stage do mapping change without
>> any
>> code change
>>
>> 2011/7/22 Łukasz Dywicki<[email protected]>
>>
>> You can use camel-xstream which have default behaviors and will create
>>> file
>>> similar to Christion example. You simply do marshal().xstream() instead
>>> of
>>> JAXB. No annotations, no classes, only declarative model.
>>>
>>> Regards,
>>> Lukasz
>>>
>>> How about creating a default xml out of the csv and then convert this to
>>>>
>>> the custom xml using xslt.
>>>
>>>> For example for this csv:
>>>>
>>>> Name, Age
>>>> Anne, 23
>>>> Jim, 45
>>>>
>>>> the default xml could look like this:
>>>>
>>>> <data>
>>>> <line><Name>Anne</Name><Age>**23</Age></line>
>>>> <line><Name>Jim</Name><Age>45<**/Age></line>
>>>> </data>
>>>>
>>>> The xslt does not have to be compiled and can be created using some
>>>>
>>> tooling.
>>>
>>>> We could add a marshaller for the default format to camel.
>>>>
>>>> Christian
>>>>
>>>>
>>>> Am 21.07.2011 18:31, schrieb shekher awasthi:
>>>>
>>>>> Hi All,
>>>>>
>>>>> i am trying my hands on camel where i have to fetch some csv file from
>>>>> a
>>>>> file system and needs to convert it to xml format and place it on some
>>>>>
>>>> other
>>>
>>>> system
>>>>>
>>>>> i am using camel for this and here is my sample POC code
>>>>>
>>>>> *import org.apache.camel.CamelContext;
>>>>>
>>>>> import org.apache.camel.Exchange;
>>>>>
>>>>> import org.apache.camel.Message;
>>>>>
>>>>> import org.apache.camel.Processor;
>>>>>
>>>>> import org.apache.camel.builder.**RouteBuilder;
>>>>>
>>>>> import org.apache.camel.impl.**DefaultCamelContext;
>>>>> import com.poc.convertor.**CSVConverterBean;
>>>>>
>>>>> public class TestPOC {
>>>>>
>>>>> public static void main(String args[]) throws Exception {
>>>>> CamelContext context = new DefaultCamelContext();
>>>>> context.addRoutes(new RouteBuilder() {
>>>>>
>>>>> public void configure() {
>>>>>
>>>>> from("file:data/csv?noop=true"**).unmarshal().csv().bean(new
>>>>>
>>>>> CSVConverterBean(),"**processCSVInvoice").to("file:**
>>> data/csvoutput?fileName=test.**xml").marshal("jaxb");
>>>
>>>>
>>>>> }
>>>>>
>>>>> });
>>>>> context.start();
>>>>> Thread.sleep(1000);
>>>>> context.stop();
>>>>> }
>>>>>
>>>>> }*
>>>>>
>>>>> In this approach camel csv unmarshaller will covert the csv file in to
>>>>>
>>>> java
>>>
>>>> list List<List<String>> i have written a java converter
>>>>> CSVConverterBeanwhich will iterate the list and set the values in the
>>>>> respective java
>>>>> objects being generated by jaxb 2.x , final object is being marshaled
>>>>> in
>>>>>
>>>> to
>>>
>>>> xml and file is being saved.
>>>>>
>>>>> Everything is being working properly with only one issue , if in future
>>>>> there arises any request to change mapping we need to do the
>>>>>
>>>> modification in
>>>
>>>> CSVConverterBean and than this java file needs to be recompiled and need
>>>>>
>>>> to
>>>
>>>> be redistributed which we want to avoid.
>>>>>
>>>>> my question is, Is there any way by which we can map the values from
>>>>> the
>>>>> java List being given by Camel to the respective java classes being
>>>>> generated by the JaxB so that the need to recompile java code can be
>>>>> avoided.
>>>>> Thanks in advance for the help
>>>>>
>>>>>
>>>> --
>>>> --
>>>> Christian Schneider
>>>> http://www.liquid-reality.de
>>>>
>>>> Open Source Architect
>>>> Talend Application Integration Division http://www.talend.com
>>>>
>>>>
>>>
> --
> Christian Schneider
> http://www.liquid-reality.de
>
> Open Source Architect
> http://www.talend.com
>
>
