Accessing a Windows Share using VFS¶

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This example demonstrates how the VFS transport in WSO2 Micro Integrator can be used to access a windows share.

Synapse configuration¶

Following are the integration artifacts (proxy service) that we can used to implement this scenario.

<proxy xmlns="http://ws.apache.org/ns/synapse" name="StockQuoteProxy" transports="vfs">
    <parameter name="transport.vfs.FileURI">smb://host/test/in</parameter> 
    <parameter name="transport.vfs.ContentType">text/xml</parameter>
    <parameter name="transport.vfs.FileNamePattern">.*\.xml</parameter>
    <parameter name="transport.PollInterval">15</parameter>
    <parameter name="transport.vfs.MoveAfterProcess">smb://host/test/original</parameter> 
    <parameter name="transport.vfs.MoveAfterFailure">smb://host/test/original</parameter>
    <parameter name="transport.vfs.ActionAfterProcess">MOVE</parameter>
    <parameter name="transport.vfs.ActionAfterFailure">MOVE</parameter>

    <target>
        <inSequence>=
            <header name="Action" value="urn:getQuote"/>
            <send>
                <endpoint>
                    <address uri="http://localhost:9000/services/SimpleStockQuoteService"/>
                </endpoint>
            </send>
        </inSequence>
        <outSequence>
            <property name="transport.vfs.ReplyFileName"
                      expression="fn:concat(fn:substring-after(get-property('MessageID'), 'urn:uuid:'), '.xml')" scope="transport"/>
            <property action="set" name="OUT_ONLY" value="true"/>
            <send>
                <endpoint>
                    <address uri="vfs:smb://host/test/out"/>
                </endpoint>
            </send>
        </outSequence>
    </target>
    <publishWSDL key="conf:custom/sample_proxy_1.wsdl"/>
</proxy>

Build and run¶

To test this sample, the following files and directories should be created:

Create the file directories:
- Create a directory named test on a windows machine and create three sub directories named in , out and original within the test directory.
- Grant permission to the network users to read from and write to the test directory and sub directories.
- Be sure to update the in, original, and original directory locations with the values given as the transport.vfs.FileURI, transport.vfs.MoveAfterProcess, transport.vfs.MoveAfterFailure parameter values in your synapse configuration.
- You need to set both transport.vfs.MoveAfterProcess and transport.vfs.MoveAfterFailure parameter values to point to the original directory location.
- Be sure that the endpoint in the <outSequence> points to the out directory location. Make sure that the prefix vfs: in the endpoint URL is not removed or changed.
Add sample_proxy_1.wsdl as a registry resource. Change the registry path in the proxy service accordingly.
Set up the back-end service.
- Download the stockquote_service.jar
- Open a terminal, navigate to the location of the downloaded service, and run it using the following command: ```bash java -jar stockquote_service.jar
Create the test.xml file shown below and copy it to the location specified by transport.vfs.FileURI in the configuration (i.e., the in directory). This contains a simple stock quote request in XML/SOAP format.
```
<?xml version='1.0' encoding='UTF-8'?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:wsa="http://www.w3.org/2005/08/addressing">
    <soapenv:Body>
        <m0:getQuote xmlns:m0="http://services.samples">
            <m0:request>
                <m0:symbol>IBM</m0:symbol>
            </m0:request>
        </m0:getQuote>
    </soapenv:Body>
</soapenv:Envelope>
```
When the sample is executed, the VFS transport listener picks the file from the in directory and sends it to the back service over HTTP. Then the request XML file is moved to the original directory and the response is saved to the out directory.

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