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Example

<Workflow name="ExecuteRemoteQuery">

  <Return name="PostDataOutput" value="postTQLQuery.TQLResponse"/>

  <Task name="postTQLQuery">

    <Invoke name="postTQL" post="[:$Macro .Argument.RemoteTQLEndPoint:]" AutoCloseTimeout="PT15S">

      <Message type="xml">

        <Value>[:$Macro.Argument.QueryString:]</Value>

      </Message>

    </Invoke>

    <Output name="TQLResponse">

      <Value>[:Invoke.postTQL:]</Value>

    </Output>

  </Task>

</Workflow>

Referenced by:

• Workflow
• WfContent

Example

<Workflow>
  <Namespace name="WdlTest">
    <Task name="Input" while="true">
      <Output name="Command"/>
    </Task>
    <Task name="WdlTestTask">
      <Input name="Command" value="Input.Command"/>
      <Variable name="MyVar" type="int" value="3"/>
      <Invoke name="JexlTest">
        <JexlScript>

               var file = sffInvoke.getName()+".Variable.xml";
               var vars = sff:loadTxt(file);
               if(vars != null)
                      Variable = vars;
                      sffLog.info("JexlTest: MyVar="+Variable.MyVar);
                      var i = Variable.MyVar;
                      while((i = i - 1) ge 0)
                                 sffLog.info("JexlTest: "+i);
                      var sin1 = math:sin(PI / 2);
                      Variable.MyVar = Variable.MyVar + 1;
                      Variable.MyVar1 = Variable.MyVar;
                      Variable.add("MyVar1", Variable.MyVar + 1);
                      sff:saveTxt(file, Variable);
                      return Input.Command.toString().concat(Variable.MyVar.toString()).concat("5:").concat(sin1.toString());

        </JexlScript>
      </Invoke>
      <Output name="Result" value="[%:Invoke.JexlTest:%]"/>
    </Task>
     ...
    <Task name="ResponseWdlTestTask">
      <Input name="Command" value="Input.Command"/>
      <Input name="Result" value="WdlTestTask.Result"/>
      <Invoke name="Respond" fid="wdl">
        <FacetScript>
          <DoResponse target="wdl:*">
            <Process>
              <Message type="json"xmlns="http://test">
                <Value>
                  <command>[%:Input.Command:%]</command>
                  <result>[%:Input.Result:%]</result>
                </Value>
              </Message>
            </Process>
          </DoResponse>
        </FacetScript>
      </Invoke>
       ...
    </Task>
  </Namespace>
</Workflow>

Referenced by: WfTask

Example<Task name="Trigger">

  <!--Input name="Start" value="Event.RFID"/-->  <Log level="info" name="Wait1" WaitFor="(Event1 or Event2) and (Event3 or Event4)" message="Trigger1 ([:WaitFor:])"/>

  <Log level="info" name="Wait2" WaitFor="Event1 and Event3" message="Trigger2 ([:WaitFor:])"/>

  <Log level="info" name="Wait3" WaitFor="Event2 and Event4" message="Trigger3 ([:WaitFor:])"/>

  <Log level="info" name="Wait4" WaitFor="(Event1 or Event2) and (Event3 or Event4)" message="Trigger4 ([:WaitFor:])"/>  <Output name="Event1"/>

  <Output name="Event2"/>

  <Output name="Event3"/>

  <Output name="Event4"/>

</Task>

Referenced by:

• WfInvoke
• WfTask

 <Invoke name="InvokeSerialRead" waitFor="Argument" get="perif://">...</Invoke>

Referenced by:

• WfInvoke
• WfTask

Workflow invokes with the Invoke tab name:

• Name: Optional invoke name.
• ExecuteInvoke - Command line invoke.

<Workflow Limit="1" Live="1" Timeout="0">

    <Event name="Argument" as="ActionArgument"/>

    <Invoke name="ReadId" waitFor="Argument" get="[%:Event.Argument.URL.Value:%]"StopChar="0x0D" ReadTimeout="-1" WriteTimeout="-1" RepeatDelay="1"/>    <Output name="Result" as="ActionResult">

      <Value>

        <RFID>[%:[%:@Output:%]Invoke.ReadId.Message.Value:%]</RFID>

      </Value>

    </Output>

  </Task>

</Workflow>

Referenced by:

• InvokeGroup

Common invoke arguments

• WaitFor: A logical expression of possibly multiple outputs/events.
• Unless: Delay termination output/event. Usually used with timeout/delay.
• SkipIf: A logical expression to skip the invoke execution.
• OnlyIf: A logical expression to execute invoke conditionally.
• DelayUntil: Absolute invoke execution time.
• DelayBefore: Invoke execution delay interval (delay before invoke starts executing).
• Delay: Synonym for DelayBefore.
• Timeout: Invoke type dependent hint. Different invoke types may interpret it differently.
• DelayAfterInvoke result delay interval (delay after invoke has completed).

Example
<Task name="WdlTestTask">
  <Input name="Command" value="Input.Command"/>
  <Variable name="MyVar" type="int" value="3"/>
  <Invoke name="JexlTest">
    <JexlScript>

      </JexlScript>
  </Invoke>
  <Output name="Result" value="[%:Invoke.JexlTest:%]"/>
</Task>

Referenced by: InvokeGroup

Example 

<Invoke name="GetImage" url="[:Cart.URL:]" execute="sshpass ssh -o ConnectTimeout=10 -p 22 <usename>@<hostname> ls" />

Referenced by:

• InvokeGroup

ExecuteInvoke - command line invoke

• Execute: Command line to execute.
• StdIn: Optional content of stdin stream.

Example 

<Invoke name="neoRoot" get="http://localhost:7474/db/data/"/>

<Invoke name="Activate" post="[:Cart.URL:]/putxml" skip-if="[:isActive:]">

Referenced by:

• CommunicationInvoke
• InvokeGroup

HTTP Communications

• HTTP GET - HttpGetInvokeArguments.
• HTTP PUT - HttpPutInvokeArguments.
• HTTP POST - HttpPostInvoke Arguments.
• HTTP DELETE - HttpDeleteInvokeArguments.
• get: http request URL for the method.
• put: http request URL for the method.
• post: http request URL for the method.
• delete: http request URL for the method.

Example

<Message type="text/xml">

     <Value>

           <Command>

                       <Standby>

                              <Deactivate/>

                        </Standby>

             </Command>  

      </Value>

</Message>

Referenced by:

• HTTP PUT
• HTTP POST
• HTTP Communications (HttpInvokeArguments)
• RxTxPutInvokeArguments
• Serial Communications (RxTxInvokeArguments)

Example

    <Invoke name="InvokeSerialRead" waitFor="Argument" get="perif://">...</Invoke>

Referenced by:

• CommunicationInvoke
• InvokeGroup

Serial Communications

• get: device path regular expression (e.g. COM[3-9] or /dev/tty\\.usbserial.*).
• put: device path regular expression (e.g. COM[3-9] or /dev/tty\\.usbserial.*).
• post: device path regular expression (e.g. COM[3-9] or /dev/tty\\.usbserial.*).

Example 

<CreatePipeline arguments="RxTxServerExtensionArgs"

                            BaudRate="2400" StopChar="0x0D" />

Referenced by:

• RxTxGetInvokeArguments
• RxTxPutInvokeArguments
• Serial Communications (RxTxInvokeArguments)

CommonRxTxInvokeArguments

• MaxWait: Maximum message wait time in seconds.
• OpenTimeout: Open timeout in msec.
• ReadTimeout: Non-communication timeout in seconds.
• WriteTimeout: Non-communication timeout in seconds.
• RepeatDelay: Duplicate message delay in seconds.
• OmitEmpty: Omit empty messages.
• Encoding: Apply encoding/decoding to both the input and output. Only supported value is 'URL'.
• DecodeOut: Apply decoding to the output message. Only supported value is 'URL'.
• EncodeIn: Apply encoding to the input message. Only supported value is 'URL'.
• Trim: Trim whitespace.
• FlowControl: Possible values: in:rts/cts, out:rts/cts, in:xon/xoff, out:xon/xoff.
• BaudRate: Interface baud rate.
• DataBits: Possible values: 5,6,7,8.
• StopBits: Possible values: 1,2,1.5.
• Parity: Possible values: none,odd,even,mark,space.

Example

<Invoke name="ReadValue" waitFor="Argument"

                        post="phid://" SerialNumber="2"

                        DeviceType="PhidgetGPS"  delay="5" />

Referenced by:

• CommunicationInvoke
• InvokeGroup

Example

<Invoke name="ReadValue" waitFor="Argument"

                        post="phid://" SerialNumber="2"

                        DeviceType="PhidgetGPS"  delay="5" />

Referenced by: Phidget Communications (PhidInvokeArguments)

Example

<Invoke name="InvokeZbee" waitFor="Argument" post="perif://">

  <Message>

    <Value>

      <InterfacePort>/dev/ttyUSB0</InterfacePort>

      <Baudrate>9600</Baudrate>

      <Interface>serial</Interface>

      <UniqueId>92034</UniqueId>

      <Operation>receive</Operation>

      <format>ascii</format>

      <Payload>$Null()</Payload>

      <Peripheral>serial</Peripheral>

    </Value>

  </Message>

</Invoke>

Referenced by:

• CommunicationInvoke
• InvokeGroup

Example

<Invoke name="InvokeZbee" waitFor="Argument" post="perif://">

  <Message>

    <Value>

      <InterfacePort>/dev/ttyUSB0</InterfacePort>

      <Baudrate>9600</Baudrate>

      <Interface>serial</Interface>

      <UniqueId>92034</UniqueId>

      <Operation>receive</Operation>

      <format>ascii</format>

      <Payload>$Null()</Payload>

      <Peripheral>serial</Peripheral>

    </Value>

  </Message>

</Invoke>

Referenced by: Perif Communications (PerifInvokeArguments)

Example

<Invoke name="GetImage" waitFor="ActionArgument" post="ucam://" >

  <Message>

    <Value>

      <USBCameraParameters>

        <ImageFormat></ImageFormat>

        <SaveToDisk></SaveToDisk>

        <ImageName></ImageName>

        <Size>

          <Height></Height>

          <Width></Width>

        </Size>

        <Configuration>

          <Standard></Standard>

          <Quality></Quality>

          <Channel></Channel>

          <Brightness></Brightness>

          <Contrast></Contrast>

          <Gamma></Gamma>

          <Gain></Gain>

          <Sharpness></Sharpness>

          <Saturation></Saturation>

          <Hue></Hue>

        </Configuration>

      </USBCameraParameters>

    </Value>

  </Message>

</Invoke>

Referenced by:

• CommunicationInvoke
• InvokeGroup

Example

<Invoke name="GetImage" waitFor="ActionArgument" post="ucam://" >

  <Message>

    <Value>

      <USBCameraParameters>

        <ImageFormat></ImageFormat>

        <SaveToDisk></SaveToDisk>

        <ImageName></ImageName>

        <Size>

          <Height></Height>

          <Width></Width>

        </Size>

        <Configuration>

          <Standard></Standard>

          <Quality></Quality>

          <Channel></Channel>

          <Brightness>]</Brightness>

          <Contrast></Contrast>

          <Gamma></Gamma>

          <Gain></Gain>

          <Sharpness></Sharpness>

          <Saturation></Saturation>

          <Hue></Hue>

        </Configuration>

      </USBCameraParameters>

    </Value>

  </Message>

</Invoke>

Referenced by: USBCam Communications (UcamInvokeArguments)

Example

<Invoke name="ReadValue" waitFor="Argument" post="smtp:<MailServer>" Hostname="<MailServer>">

  <Message>

    <Value>

      <Port>[:Port:]</Port>

      <Username>[:Username:]</Username>

      <Password>[Password:]</Password>

      <From>[:From:]</From>

      <To>[:To:]</To>

      <CC>[:CC:]</CC>

      <Subject>[:Subject:]</Subject>

      <Body>[:Body:]</Body>

      <StartTLS>[:StartTLS:]</StartTLS>

    </Value>

  </Message>

</Invoke>

Referenced by:

• CommunicationInvoke
• InvokeGroup

Example

<Invoke name="ReadValue" waitFor="Argument" post="smtp:<MailServer>" Hostname="<MailServer>">

  <Message>

    <Value>

      <Port>[:Port:]</Port>

      <Username>[:Username:]</Username>

      <Password>[Password:]</Password>

      <From>[:From:]</From>

      <To>[:To:]</To>

      <CC>[:CC:]</CC>

      <Subject>[:Subject:]</Subject>

      <Body>[:Body:]</Body>

      <StartTLS>[:StartTLS:]</StartTLS>

    </Value>

  </Message>

</Invoke>

Referenced by: SMTP Communications (CommonSMTPInvokeArguments)