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package it.cnr.istc.pst.platinum.executive.dc; |
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import it.cnr.istc.pst.platinum.ai.executive.lang.ExecutionFeedback; |
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import it.cnr.istc.pst.platinum.ai.executive.lang.ex.ExecutionException; |
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import it.cnr.istc.pst.platinum.ai.executive.lang.ex.NodeExecutionErrorException; |
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import it.cnr.istc.pst.platinum.ai.executive.lang.ex.NodeObservationException; |
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import it.cnr.istc.pst.platinum.ai.executive.lang.failure.ExecutionFailureCause; |
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import it.cnr.istc.pst.platinum.ai.executive.lang.failure.NodeDurationOverflow; |
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import it.cnr.istc.pst.platinum.ai.executive.lang.failure.NodeExecutionError; |
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import it.cnr.istc.pst.platinum.ai.executive.lang.failure.NodeStartOverflow; |
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import it.cnr.istc.pst.platinum.ai.executive.monitor.Monitor; |
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import it.cnr.istc.pst.platinum.ai.executive.pdb.ControllabilityType; |
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import it.cnr.istc.pst.platinum.ai.executive.pdb.ExecutionNode; |
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import it.cnr.istc.pst.platinum.ai.executive.pdb.ExecutionNodeStatus; |
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import it.cnr.istc.pst.platinum.ai.framework.time.ex.TemporalConstraintPropagationException; |
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import it.cnr.istc.pst.platinum.control.lang.ex.PlatformException; |
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/** |
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* |
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*/ |
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public class DCMonitor extends Monitor<DCExecutive> |
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{ |
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/** |
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* |
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* @param exec |
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*/ |
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protected DCMonitor() { |
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super(); |
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} |
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/** |
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* |
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*/ |
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@Override |
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public void handleTick(long tick) |
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throws ExecutionException, PlatformException |
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{ |
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// convert tick to tau |
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long tau = this.executive.convertTickToTau(tick); |
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// check received feedbacks |
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// List<ExecutionFeedback> feedbacks = this.getObservations(); |
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// // manage uncontrollable tokens of the plan according to the feedbacks |
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// for (ExecutionFeedback feedback : feedbacks) { |
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while (this.hasObservations()) { |
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// get next feedback |
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ExecutionFeedback feedback = this.next(); |
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// get node |
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ExecutionNode node = feedback.getNode(); |
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// execution feedback |
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debug("[DCMonitor] [tick: " + tick + "][{tau: " + tau + "] -> Execution feedback:\n" |
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+ "\t- type: " + feedback.getType() + "\n" |
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+ "\t- node: " + feedback.getNode() + "\n"); |
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// check feedback type |
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View Code Duplication |
switch (feedback.getType()) { |
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case PARTIALLY_CONTROLLABLE_TOKEN_COMPLETE : |
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case UNCONTROLLABLE_TOKEN_COMPLETE : |
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{ |
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// compute node duration of the token in execution |
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long duration = Math.max(1, tau - node.getStart()[0]); |
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try { |
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// schedule token duration |
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this.executive.scheduleTokenDuration(node, duration); |
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// update node state |
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this.executive.updateNode(node, ExecutionNodeStatus.EXECUTED); |
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info("[DCMonitor] [tick: " + tick + "] [tau: " + tau + "] -> Observed token execution with duration " + duration + " \n" |
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+ "\t- node: " + node.getGroundSignature() + " (" + node + ")\n"); |
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} |
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catch (TemporalConstraintPropagationException ex) { |
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// set token as in failure |
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this.executive.updateNode(node, ExecutionNodeStatus.FAILURE); |
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// create execution failure message |
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ExecutionFailureCause cause = new NodeDurationOverflow(tick, node, tau); |
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// throw execution exception |
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throw new NodeObservationException( |
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"Observed duration time does not comply with the expected one:\n" |
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+ "\t- duration: " + duration + "\n" |
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+ "\t- node: " + node + "\n", |
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cause); |
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} |
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} |
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break; |
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case UNCONTROLLABLE_TOKEN_START : |
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{ |
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try |
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{ |
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// schedule the start of uncontrollable token |
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this.executive.scheduleUncontrollableTokenStart(node, tau); |
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info("{Monitor} {tick: " + tick + "} {tau: " + tau + "} -> Observed token execution start at time " + tau + "\n" |
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+ "\t- node: " + node.getGroundSignature() + " (" + node + ")\n"); |
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} |
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catch (TemporalConstraintPropagationException ex) { |
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// the node can be considered as in execution |
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this.executive.updateNode(node, ExecutionNodeStatus.FAILURE); |
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// create execution cause |
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ExecutionFailureCause cause = new NodeStartOverflow(tick, node, tau); |
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// throw execution exception |
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throw new NodeObservationException( |
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"The observed start time of the token does not comply with the expected one:\n" |
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+ "\t- start: " + tau + "\n" |
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+ "\t- node: " + node + "\n", |
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cause); |
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} |
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} |
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break; |
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case TOKEN_EXECUTION_FAILURE : { |
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// update node status |
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this.executive.updateNode(node, ExecutionNodeStatus.FAILURE); |
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// execution failure |
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ExecutionFailureCause cause = new NodeExecutionError(tick, node); |
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// throw execution exception |
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throw new NodeExecutionErrorException( |
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"Node execution error:\n\t- node: " + node + "\n", |
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cause); |
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} |
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} |
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} |
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// manage controllable tokens of the plan |
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View Code Duplication |
for (ExecutionNode node : this.executive.getNodes(ExecutionNodeStatus.IN_EXECUTION)) { |
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// check node controllability |
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if (node.getControllabilityType().equals(ControllabilityType.CONTROLLABLE)) { |
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// check end conditions |
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if (this.executive.canEnd(node)) { |
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// check node schedule |
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this.executive.checkSchedule(node); |
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// check expected schedule |
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if (tau >= node.getEnd()[0]) { |
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// compute (controllable) execution duration |
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long duration = Math.max(1, tau - node.getStart()[0]); |
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// send stop signal to the platform |
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this.executive.sendStopCommandSignalToPlatform(node); |
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// set node as executed |
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this.executive.updateNode(node, ExecutionNodeStatus.EXECUTED); |
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// token scheduled |
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info("{Monitor} {tick: " + tick + "} {tau: " + tau + "} -> Scheduling duration for controllable token\n" |
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+ "\t- duration: " + duration + "\n" |
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+ "\t- node: " + node.getGroundSignature() + " (" + node + ")\n"); |
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} |
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else { |
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// wait - not ready for dispatching |
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debug("{Monitor} {tick: " + tick + "} {tau: " + tau + "} -> End conditions satisifed but node schedule not ready for ending\n" |
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+ "\t- node: " + node.getGroundSignature() + " (" + node + ")\n"); |
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} |
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} |
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else { |
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// print a message in debug mode |
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debug("{Monitor} {tick: " + tick + "} {tau: " + tau + "} -> End execution conditions not satisfied yet\n" |
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+ "\t- node: " + node.getGroundSignature() + " (" + node + ")\n"); |
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} |
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} |
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} |
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} |
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/** |
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* |
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*/ |
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View Code Duplication |
@Override |
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public void handleExecutionFailure(long tick, ExecutionFailureCause cause) |
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throws PlatformException |
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{ |
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// convert tick to tau |
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long tau = this.executive.convertTickToTau(tick); |
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// manage uncontrollable tokens of the plan according to the feedbacks |
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while (this.hasObservations()) |
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{ |
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// get next observation |
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ExecutionFeedback feedback = this.next(); |
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// get node |
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ExecutionNode node = feedback.getNode(); |
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// check node schedule |
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this.executive.checkSchedule(node); |
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// check execution result |
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switch (feedback.getType()) { |
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case PARTIALLY_CONTROLLABLE_TOKEN_COMPLETE : |
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case UNCONTROLLABLE_TOKEN_COMPLETE : { |
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// compute node duration of the token in execution |
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long duration = Math.max(1, tau - node.getStart()[0]); |
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// the node can be considered as executed |
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this.executive.updateNode(node, ExecutionNodeStatus.FAILURE); |
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// add repair information |
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cause.addRepairInfo(node, duration); |
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// info message |
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info("{Monitor} {tick: " + tick + "} {tau: " + tau + "} {FAILURE-HANDLING} -> Observed token execution with duration " + duration + " \n" |
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+ "\t- node: " + node.getGroundSignature() + " (" + node + ")\n"); |
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} |
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break; |
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case UNCONTROLLABLE_TOKEN_START : { |
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// update node status |
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this.executive.updateNode(node, ExecutionNodeStatus.FAILURE); |
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info("{Monitor} {tick: " + tick + "} {tau: " + tau + "} {FAILURE-HANDLING} -> Observed token execution start at time " + tau + "\n" |
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+ "\t- node: " + node.getGroundSignature() + " (" + node + ")\n"); |
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} |
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break; |
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case TOKEN_EXECUTION_FAILURE : { |
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// the node can be considered as executed |
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this.executive.updateNode(node, ExecutionNodeStatus.FAILURE); |
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info("{Monitor} {tick: " + tick + "} {tau: " + tau + "} {FAILURE-HANDLING} -> Observed execution failure at time " + tau + "\n" |
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+ "\t- node: " + node.getGroundSignature() + " (" + node + ")\n"); |
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} |
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} |
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} |
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// manage controllable tokens of the plan |
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for (ExecutionNode node : this.executive.getNodes(ExecutionNodeStatus.IN_EXECUTION)) { |
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// check node controllability |
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if (node.getControllabilityType().equals(ControllabilityType.CONTROLLABLE)) { |
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// check end conditions |
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if (this.executive.canEnd(node)) { |
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// check schedule |
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this.executive.checkSchedule(node); |
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// check expected schedule |
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if (tau >= node.getEnd()[0]) { |
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// the node can be considered as executed |
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this.executive.updateNode(node, ExecutionNodeStatus.FAILURE); |
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// send stop command |
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this.executive.sendStopCommandSignalToPlatform(node); |
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// info message |
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debug("{Monitor} {tick: " + tick + "} {tau: " + tau + "} {FAILURE-HANDLING} -> Stopping execution of controllable token\n" |
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+ "\t- node: " + node.getGroundSignature() + " (" + node + ")\n"); |
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} else { |
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// info message |
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debug("{Monitor} {tick: " + tick + "} {tau: " + tau + "} {FAILURE-HANDLING} -> Waiting stop condition for controllable token\n" |
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+ "\t- node: " + node.getGroundSignature() + " (" + node + ")\n"); |
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} |
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} |
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} |
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} |
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} |
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} |
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