These properties are used to configure cMessageFilter running in the Standard Job framework.

The Standard
cMessageFilter component belongs to the Routing family.

Basic
settings

Usage

This scenario requires one cMessageFilter
component to filter the messages from the sender, one cFile component as the message sender, one cFile component to receiver the messages containing Paris, one cFile
component to receiver all the messages from the sender, and two cProcessor components to monitor the messages routed to
the two receivers.

1. From the Connectivity folder of the Palette, drop three cFile components onto the design workspace, and label them
   Sender, Paris_only, and Unfiltered respectively to better identify their
   roles.
2. From the Routing folder, drop a cMessageFilter component onto the design workspace, and
   label it Filter.
3. From the Custom folder, drop two cProcessor components onto the design workspace, and label
   them Monitor_Paris and Monitor_Unfiltered respectively.
4. Right-click the cFile component labeled
   Sender, select Row > Route from the
   contextual menu and click the cMessageFilter component.
5. Right-click the cMessageFilter component,
   select Row > Filter from the contextual menu and click the cFile component labeled Paris_only. This endpoint will retrieve the messages that
   meet the defined criterion.
6. Right-click the cMessageFilter component,
   select Row > Route from the contextual menu and click the cFile component labeled Unfiltered. This endpoint will collect all the messages,
   including those meeting the filter criterion. This connection is
   optional.
7. Right-click the cFile component labeled
   Paris_only, select Row > Route from
   the contextual menu and click the cProcessor component labeled Monitor_Paris. Repeat this step to connect the cFile component labeled Unfiltered to the cProcessor component labeled Monitor_Unfiltered.

1. Double-click the cFile component labeled
   Sender to open its Basic settings view in the Component tab.
   

2. In the Path field, specify the file path
   to message source.
3. From the Encoding list, select the
   encoding type of your message files. Leave the other parameters as they
   are.
4. Double-click the cMessageFilter component
   to open its Basic settings view in the
   Component tab.
   

5. Select the language of the expression you want to use to filter your
   messages, and enter an expression to define a criterion according to which
   you want to filter your messages.
   In this scenario, we want to sort out the XML files containing a city node
   with the value of Paris, so we select XPath
   from the Language list, and fill the in the
   Expression field with this expression:
   "/person[city='Paris']".
6. Double-click the cFile component labeled
   Paris_only to open its Basic settings view in the Component view, and specify the path for the messages
   meeting the filter criterion in the Path
   field.
   

   Repeat this step to define the path for all the messages from the sender
   in the cFile component labeled Unfiltered.
7. Double-click the cProcessor component labeled Monitor_Paris to open its Basic settings view in the Component view, and customize the code in the Code area to display the file names of the
   messages that meet the filter criterion on the console:
   System.out.println("Message sent to folder Paris_only: "+ exchange.getIn().getHeader("CamelFileName"));

   1 2	System.out.println("Message sent to folder Paris_only: "+ exchange.getIn().getHeader("CamelFileName"));

   Repeat this step to customize the code in the cProcessor
   component labeled Monitor_Unfiltered to
   display the file names of all the messages from the sender.
8. Press Ctrl+S to save your Route.

1. To have a look at the generated code, click the Code tab at the bottom of the design workspace.
   

   As shown in this piece of code, messages from the sender are filtered by
   cMessageFilter_1 according to
   .xpath("/person[city='Paris']") and the messages matching
   the filter are send .to the endpoint Paris_only,
   while all messages are sent .to the endpoint
   Unfiltered.
2. Click the Run view to display it and
   click the Run button to launch the
   execution of your Route.
   You can also press F6 to execute it.
   RESULT: The messages are filtered according to the defined criterion and the messages
   containing “Paris” are redirected to the Paris_only folder, all the messages, including
   those containing “Paris“, are sent to the Unfiltered folder.