Detach an Interaction

The following SCXML strategy detaches a call from the current session, then redirects it from DN 3001 on Switch 'tel_sw' to DN 7778 on Switch 'tel_sw_1'.

<!-- ****************************************** -->
<!-- * TEST OF DETACH AND SUBSEQUENT REDIRECT * -->
<!-- ****************************************** -->
<scxml version="1.0" xmlns="http://www.w3.org/2005/07/scxml"
  name="simple monitoring app"
  xmlns:queue="http://www.genesyslab.com/modules/queue"
  xmlns:ixn="http://www.genesyslab.com/modules/interaction"
  xmlns:dialog="http://www.genesyslab.com/modules/dialog" >
	<!--********************************************************************-->
	<datamodel>
		<data ID="stateName" expr="'initial'" />
		<data ID="reqid" expr="''" />
		<data ID="ixnid" expr="''" />
		<data ID="test_result" expr="'PASSED'" />
	</datamodel>
	<!--********************************************************************-->
	<initial>
		<transition target="waiting"/>
	</initial>
	<!--********************************************************************-->
	<state id="main" initial="waiting">
		<!--********************************************************************-->
		<state id="waiting">
			<onentry>
				<log expr="'Waiting for incoming call...'" />
			</onentry>
			<transition event="interaction.added" target="detachcall">
				<script>
					_data.ixnid = _event.data.interactionid;
					var dev = _genesys.ixn.interactions[_data.ixnid].parties[_data.ixnid + '-1'].device;
				</script>
				<log expr="'G_G_GOT initial interaction added: ' + uneval( _event.data )"/>
				<log expr="'_genesys.ixn: ' + uneval( _genesys.ixn )" />
			</transition>
		</state>
		<!--********************************************************************-->
		<!--  Detaching call from session with graceful termination by timeout  -->
		<!--********************************************************************-->
		<state id="detachcall">
			<onentry>
				<script>
					var noMoreDetach = false;
					var detachTimeout = '3s'; /*'infinite' means endless trying to detach*/
				</script>
				<if cond="detachTimeout != 'infinite'">
					<send event="'DetachTimeoutEvent'" delay="detachTimeout"/>
				</if>
				<ixn:detach interactionid="_data.ixnid" requestid="_data.reqid" />
			</onentry>
			<transition event="DetachTimeoutEvent">
				<script>
					noMoreDetach = true;
				</script>
			</transition>
			<transition event="error.interaction.detach" cond="(_event.data.error == 'invalidstate')&&!noMoreDetach&&(_event.data.requestid == _data.reqid)">
				<log expr="'G_G_GOT detach invalidstate error: ' + uneval( _event.data )" />
				<ixn:detach interactionid="_data.ixnid" requestid="_data.reqid" />
			</transition>
			<transition event="error.interaction.detach" cond="(_event.data.error == 'invalidstate')&&noMoreDetach&&(_event.data.requestid == _data.reqid)" target="abnormal_exit">
				<log expr="'G_G_GOT final detach invalidstate error: ' + uneval( _event.data )" />
			</transition>
			<transition event="error.interaction.detach" cond="(_event.data.error != 'invalidstate')&&(_event.data.requestid == _data.reqid)" target="abnormal_exit">
				<log expr="'G_G_GOT detach error: ' + uneval( _event.data )" />
			</transition>
			<transition event="interaction.detach.done" cond="_event.data.requestid == _data.reqid" target="redirectcall">
				<log expr="'G_G_GOT detach done: ' + uneval( _event.data )"/>
			</transition>
			<!--*** Targetless transition to intercept interaction.deleted event ***-->
			<transition event="interaction.deleted" cond="_event.data.interactionid == _data.ixnid">
				<log expr="'G_G_GOT detached interaction deleted: ' + uneval( _event.data )"/>
				<log expr="'_genesys.ixn: ' + uneval( _genesys.ixn )" />
			</transition>
		</state>
		<!--********************************************************************-->
		<state id="redirectcall">
			<onentry>
				<ixn:redirect interactionid="_data.ixnid" from="({'dn':'3001', 'switch':'tel_sw'})" to="({'dn':'7778', 'switch':'tel_sw_1'})" requestid="_data.reqid" />
			</onentry>
			<transition event="error.interaction.redirect" cond="_event.data.requestid == _data.reqid" target="abnormal_exit">
				<log expr="'G_G_GOT redirect error: ' + uneval( _event.data )" />
			</transition>
			<transition event="interaction.redirect.done" cond="_event.data.requestid == _data.reqid" target="somedelay">
				<log expr="'G_G_GOT redirect done: ' + uneval( _event.data )"/>
			</transition>
		</state>
		<!--********************************************************************-->
		<!--*** Just to make old and new sessions coexist after ixn_detach (additional detach verification) ***-->
		<state id="somedelay">
			<onentry>
				<send event="'SynchroEvent'" delay="'33s'"/>
			</onentry>
			<transition event="SynchroEvent" target="exit"/>
		</state>
		<!--*** Common event handler for primary ixn deletion (just to terminate this test session) ***-->
		<transition event="interaction.deleted" cond="_event.data.interactionid == _data.ixnid" target="exit">
			<log expr="'G_G_GOT initial interaction deleted: ' + uneval( _event.data )"/>
			<log expr="'_genesys.ixn: ' + uneval( _genesys.ixn )" />
		</transition>
	</state>
	<!--********************************************************************-->
	<state id="abnormal_exit">
		<onentry>
			<log expr="'G_G_GOT ABNORMAL SESSION TERMINATION'" />
			<script>
				//Overwrite _data.test_result initial value that was set in data block
				_data.test_result = 'FAILED';
			</script>
		</onentry>
		<transition target="exit"/>
	</state>
	<!--********************************************************************-->
	<final id="exit">
		<onentry>
			<log expr="'G_G_GOT SESSION TERMINATION WITH TEST_RESULT = ' + _data.test_result" />
		</onentry>
	</final>
</scxml>