Examples with WorkflowStepWeightComparator alien4cloud.paas.wf.util.WorkflowStepWeightComparator used on opensource projects

Example 1 with WorkflowStepWeightComparator

use of alien4cloud.paas.wf.util.WorkflowStepWeightComparator in project alien4cloud by alien4cloud.

the class WorkflowSimplifyService method flattenWorkflow.

private void flattenWorkflow(TopologyContext topologyContext, SubGraph subGraph) {
    ComputeNodesWeightsGraphConsumer consumer = new ComputeNodesWeightsGraphConsumer();
    subGraph.browse(consumer);
    if (consumer.getAllNodes().isEmpty()) {
        // This is really strange as we have a node template without any workflow step
        return;
    }
    Map<String, WorkflowStep> allNodes = consumer.getAllNodes();
    LinkedList<WorkflowStep> sortedByWeightsSteps = new LinkedList<>(allNodes.values());
    sortedByWeightsSteps.sort(new WorkflowStepWeightComparator(consumer.getAllNodeWeights(), topologyContext.getTopology()));
    Set<String> allSubGraphNodeIds = allNodes.keySet();
    sortedByWeightsSteps.forEach(workflowStep -> {
        // Remove all old links between the steps in the graph
        workflowStep.removeAllPrecedings(allSubGraphNodeIds);
        workflowStep.removeAllFollowings(allSubGraphNodeIds);
    });
    // Create a sequence with sorted sub graph steps
    for (int i = 0; i < sortedByWeightsSteps.size() - 1; i++) {
        sortedByWeightsSteps.get(i).addFollowing(sortedByWeightsSteps.get(i + 1).getName());
        sortedByWeightsSteps.get(i + 1).addPreceding(sortedByWeightsSteps.get(i).getName());
    }
}