Exception: Syskit::MissingDeployments

Inherits:
SpecError show all
Defined in:
lib/syskit/exceptions.rb

Overview

Exception raised at the end of #resolve if some tasks do not have a deployed equivalent

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(tasks_with_candidates) ⇒ MissingDeployments

Initializes this exception by providing a mapping from tasks that have no deployments to the deployment candidates

Parameters:



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# File 'lib/syskit/exceptions.rb', line 497

def initialize(tasks_with_candidates)
    @tasks = Hash.new
    tasks_with_candidates.each do |task, candidates|
        parents = task.dependency_context
        candidates = candidates.map do |process_server_name, deployment, task_name, existing|
            existing ||= Array.new
            existing = existing.map do |task|
                [task, task.dependency_context]
            end
            [process_server_name, deployment, task_name, existing]
        end

        @tasks[task] = [parents, candidates, task.deployment_hints]
    end
end

Instance Attribute Details

#tasks ⇒ Object (readonly)

The tasks that are not deployed, as a hash from the actual task to a set of [role_set, parent_task] pairs

This is computed in #initialize as the dependency structure will probably change afterwards



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# File 'lib/syskit/exceptions.rb', line 491

def tasks
  @tasks
end

Instance Method Details

#pretty_print(pp) ⇒ Object 



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# File 'lib/syskit/exceptions.rb', line 513

def pretty_print(pp)
    pp.text "cannot deploy the following tasks"
    tasks.each do |task, (parents, possible_deployments)|
        pp.breakable
        pp.text "#{task} (#{task.orogen_model.name})"
        pp.nest(2) do
            pp.breakable
            pp.seplist(parents) do |parent_task|
                role, parent_task = parent_task
                pp.text "child #{role} of #{parent_task}"
            end
        end
    end

    tasks.each do |task, (_parents, possible_deployments, deployment_hints)|
        has_free_deployment = possible_deployments.any? { |_, _, existing| existing.empty? }
        pp.breakable
        if has_free_deployment
            pp.text "#{task}: multiple possible deployments, choose one with #prefer_deployed_tasks(deployed_task_name)"
            if !deployment_hints.empty?
                deployment_hints.each do |hint|
                    pp.text "  current hints: #{deployment_hints.map(&:to_s).join(", ")}"
                end
            end
        elsif possible_deployments.empty?
            pp.text "#{task}: no deployments available"
        else
            pp.text "#{task}: some deployments exist, but they are already used in this network"
        end

        pp.nest(2) do
            possible_deployments.each do |configured_deployment, task_name, existing|
                pp.breakable
                pp.text "task #{task_name} from deployment #{configured_deployment.orogen_model.name} defined in #{configured_deployment.orogen_model.project.name} on #{configured_deployment.process_server_name}"
                pp.nest(2) do
                    existing.each do |task, parents|
                        pp.breakable
                        msg = parents.map do |parent_task|
                            role, parent_task = *parent_task
                            "child #{role} of #{parent_task}"
                        end
                        pp.text "already used by #{task}: #{msg.join(", ")}"
                    end
                end
            end
        end
    end
end