Multiple File InBound Endpoint in the same flow - mule

Question

I have two directories from where i want to pick files and send it to SFTP server , but i want to send directory1 files first , if it is successful then only i need to send files from directory2 . How do achieve this processing sequence ?

Answer 1

In the Batch Processing documentation, you'll see an entry for error handling, which states the following (my emphasis):
From time to time, when processing a batch job, a Mule message
processor in a batch step may find itself unable to process a record.
When this occurs – perhaps because of corrupted or incomplete record
data – Mule has three options for handling a record-level error:
stop processing the entire batch, skip any remaining batch steps and push all records to the On Complete phase (where, ideally, you
have designed a report to notify you of failed records)
continue processing the batch regardless of any failed records, using filters to instruct subsequent batch steps how to handle failed
records
continue processing the batch regardless of any failed records (using filters to instruct subsequent batch steps how to handle failed
records), until the batch job accumulates a maximum number of failed
records at which point Mule pushes all records to the On Complete
phase (where, ideally, you have designed a report to notify you of
failed records)
By default, Mule's batch jobs follow the first error handling option
which halts processing as soon as Mule encounters a single
record-level error.
So, to do what you require, you need to create a batch job where directory1 is processed first, then set max-failed-records to 0.

Answer 2

The nicer solution I see is to use Mule Module Requester to read the second set of files to later process them. Download the jar for Studio or Mule ESB standalone from the link and write a config like this:
<mule xmlns:mulerequester="http://www.mulesoft.org/schema/mule/mulerequester"
xmlns:file="http://www.mulesoft.org/schema/mule/file"
xmlns="http://www.mulesoft.org/schema/mule/core"
xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.mulesoft.org/schema/mule/jersey http://www.mulesoft.org/schema/mule/jersey/current/mule-jersey.xsd
http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd
http://www.mulesoft.org/schema/mule/file http://www.mulesoft.org/schema/mule/file/current/mule-file.xsd
http://www.mulesoft.org/schema/mule/mulerequester http://www.mulesoft.org/schema/mule/mulerequester/current/mule-mulerequester.xsd">
<file:connector name="File1" autoDelete="true" streaming="false" validateConnections="true" doc:name="File"/>
<file:endpoint path="/temp/in2" name="File2" responseTimeout="10000" doc:name="File"/>
<flow name="main" doc:name="main">
<file:inbound-endpoint path="/temp/in1" responseTimeout="10000" doc:name="File" connector-ref="File1"/>
<mulerequester:request resource="File2" returnClass=""/>
<logger level="ERROR"/>
</flow>
</mule>

Answer 3

1)Create 2 flows:- Flow1 and Flow2
2)Configure both the flows with file inbound endpoint with 2 different folders .....
3)Now suppose Flow1 need to execute first and flow 2 need to execute after that, make intial state property of flow 2 as stopped ..(So the file inbound endpoint of the flow will not pick the file from the directory) ......
4)Put a flow reference in flow 1 after your execution happened so that it call flow 2 ... so it will happen sequentially
example :-
<flow name="flow1" doc:name="f1">
<file:inbound-endpoint path="C:\folder1" responseTimeout="10000" doc:name="File" />
<!-- Do your busssiness proccess -->
<!--Start the flow2 -->
<scripting:component doc:name="Script">
<scripting:script engine="groovy">
muleContext.registry.lookupFlowConstruct('flow2').start()
</scripting:script>
</scripting:component>
<!-- Now call the second flow using Flow ref -->
<flow-ref name="flow2" doc:name="Flow Reference"/>
</flow>
<flow name="flow2" doc:name="f2" initialState="stopped">
<file:inbound-endpoint path="C:\folder2" responseTimeout="10000" doc:name="File" />
<!-- Do your busssiness proccess -->
</flow>