source: DCWoRMS/branches/coolemall/src/test/transitions/FCFS_ConsolidationHighPerf_NodePowMan_SP_Delay.java @ 1544

package test.transitions;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;


import schedframe.events.scheduling.SchedulingEvent;
import schedframe.resources.ResourceStatus;
import schedframe.resources.StandardResourceType;
import schedframe.resources.computing.ComputingResource;
import schedframe.resources.computing.Node;
import schedframe.resources.computing.Processor;
import schedframe.resources.computing.profiles.energy.power.StandardPowerStateName;
import schedframe.resources.computing.profiles.energy.power.ui.NodePowerInterface;
import schedframe.resources.units.ProcessingElements;
import schedframe.resources.units.ResourceUnit;
import schedframe.resources.units.ResourceUnitName;
import schedframe.resources.units.StandardResourceUnitName;
import schedframe.scheduling.manager.resources.ClusterResourceManager;
import schedframe.scheduling.manager.resources.ResourceManager;
import schedframe.scheduling.manager.tasks.JobRegistry;
import schedframe.scheduling.manager.tasks.JobRegistryImpl;
import schedframe.scheduling.plan.SchedulingPlanInterface;
import schedframe.scheduling.plan.impl.SchedulingPlan;
import schedframe.scheduling.plugin.ModuleList;
import schedframe.scheduling.queue.TaskQueue;
import schedframe.scheduling.queue.TaskQueueList;
import schedframe.scheduling.tasks.TaskInterface;
import example.localplugin.BaseLocalSchedulingPlugin;
import gridsim.dcworms.DCWormsTags;

public class FCFS_ConsolidationHighPerf_NodePowMan_SP_Delay extends BaseLocalSchedulingPlugin {

        public SchedulingPlanInterface<?> schedule(SchedulingEvent event, TaskQueueList queues, JobRegistry jobRegistry,
                         ResourceManager resManager, ModuleList modules) {

                ClusterResourceManager resourceManager = (ClusterResourceManager) resManager;
                SchedulingPlan plan = new SchedulingPlan();
                // choose the events types to serve.
                // Different actions for different events are possible.
                switch (event.getType()) {
                case START_TASK_EXECUTION:
                case TASK_FINISHED:
                case RESOURCE_POWER_STATE_CHANGED:
                        // our tasks are placed only in first queue (see
                        // BaseLocalSchedulingPlugin.placeJobsInQueues() method)
                        TaskQueue q = queues.get(0);
                        List<Node> notSelectedNodes = resourceManager.getNodes();
                        
                        // check all tasks in queue
                        for (int i = 0; i < q.size(); i++) {
                                TaskInterface<?> task = q.get(i);
                                // if status of the tasks in READY
                                if (task.getStatus() == DCWormsTags.READY) {

                                        Map<ResourceUnitName, ResourceUnit> choosenResources = chooseResourcesForExecution(resourceManager, task);
                                        if (choosenResources != null) {
                                                addToSchedulingPlan(plan, task, choosenResources);
                                                ProcessingElements pe = (ProcessingElements) choosenResources.get(StandardResourceUnitName.PE);
                                                Node node = (Node) pe.get(0).getParent();
                                                notSelectedNodes.remove(node);
                                        }
                                }
                        }
                        manageResources(notSelectedNodes);
                        break;
                }
                return plan;
        }

        @SuppressWarnings("unchecked")
        private Map<ResourceUnitName, ResourceUnit> chooseResourcesForExecution(
                        ClusterResourceManager resourceManager, TaskInterface<?> task) {

                Map<ResourceUnitName, ResourceUnit> map = new HashMap<ResourceUnitName, ResourceUnit>();
                
                List<Node> nodes = resourceManager.getNodes();
                List<Node> avNodes = filterNodes(nodes, task);
                Node node;
                if(avNodes.size() == 0){

                        nodes = (List<Node>) resourceManager.getResourcesByTypeWithStatus(StandardResourceType.Node, ResourceStatus.UNAVAILABLE);
                        node = turnOnFirstNode(nodes, task);
                        return null;
                } else {
                        node = findTheMostLoadedNode(avNodes);                  
                }

                int cpuRequest;
                try {
                        cpuRequest = Double.valueOf(task.getCpuCntRequest()).intValue();
                } catch (NoSuchFieldException e) {
                        cpuRequest = 0;
                }

                if (cpuRequest != 0) {

                        List<ComputingResource> choosenResources = new ArrayList<ComputingResource>();  
                        
                        List<Processor> cpus = node.getProcessors();                    
                        for (int i = 0; i < cpus.size() && cpuRequest > 0; i++) {
                                if (cpus.get(i).getStatus() == ResourceStatus.FREE) {
                                        choosenResources.add(cpus.get(i));
                                        cpuRequest--;
                                }
                        }
                        if (cpuRequest > 0) {
                                return null;
                        }
                        //choosenResources.add(node.getProcessors().get(0));
                        ProcessingElements pe = new ProcessingElements();
                        pe.addAll(choosenResources);
                        map.put(StandardResourceUnitName.PE, pe);
                        return map;
                }
                return null;
        }
        
        private List<Node> filterNodes(List<Node> nodes, TaskInterface<?> task){
                List<Node> filteredNodes = new ArrayList<Node>();
                int cpuRequest;
                try {
                        cpuRequest = Double.valueOf(task.getCpuCntRequest()).intValue();
                } catch (NoSuchFieldException e) {
                        cpuRequest = 0;
                }
                for (Node node : nodes) {

                        if (cpuRequest != 0) {

                                List<Processor> cpus = node.getProcessors();
                                if (cpus.size() < cpuRequest) {
                                        if(cpus.size() == 0){
                                                continue;
                                        }
                                }

                                int freeCpus = 0;
                                for(Processor cpu: cpus){
                                        if(cpu.getStatus() == ResourceStatus.FREE) 
                                                freeCpus++;
                                }
                                
                                if(freeCpus < cpuRequest)
                                        continue;
                                
                                filteredNodes.add(node);
                        }
                }
                
                return filteredNodes;
        }
        
        private Node findTheMostLoadedNode(List<Node> nodes){
                Node mostLoadedNode = null;
                        
                int maxRunningTask = -1;
                int nrRunningTasks;
                for(Node node: nodes){
                        JobRegistry jr = new JobRegistryImpl(node.getFullName());
                        nrRunningTasks = jr.getRunningTasks().size(); 
                        if(nrRunningTasks > maxRunningTask){
                                mostLoadedNode = node;
                                maxRunningTask = nrRunningTasks;
                        }
                }
                return mostLoadedNode;
        }
        
        private Node turnOnFirstNode(List<Node> nodes, TaskInterface<?> task){
                Node startedNode = null;

                int cpuRequest;
                try {
                        cpuRequest = Double.valueOf(task.getCpuCntRequest()).intValue();
                } catch (NoSuchFieldException e) {
                        cpuRequest = 0;
                }
                
                for(Node node: nodes){
                        
                        if (cpuRequest != 0) {

                                List<Processor> cpus = node.getProcessors();
                                if (cpus.size() < cpuRequest) {
                                        if(cpus.size() == 0){
                                                continue;
                                        }
                                }
                                
                                int freeCpus = 0;
                                for(Processor cpu: cpus){
                                        if(cpu.getStatus() == ResourceStatus.FREE || cpu.getStatus() == ResourceStatus.UNAVAILABLE)
                                                freeCpus++;
                                }
                                
                                if(freeCpus < cpuRequest)
                                        continue;
                                else if(node.getPowerInterface().getPowerState().getLabel().equals(StandardPowerStateName.OFF.getLabel())){
                                        NodePowerInterface nodePI = (NodePowerInterface)node.getPowerInterface();
                                        nodePI.turnOn();
                                        startedNode = node;
                                        break;
                                }                               
                        }
                }
                return startedNode;
        }
        
        protected void manageResources(List<Node> notSelectedNodes) {
                turnOffIdleNodes(notSelectedNodes);
        }

        private void turnOffIdleNodes(List<Node> nodes){
                for(Node node : nodes){

                        int freeCpus = 0;
                        for(Processor cpu: node.getProcessors ()){
                                if(cpu.getStatus() == ResourceStatus.FREE)
                                        freeCpus++;
                        }
                        
                        if(freeCpus == node.getProcessors().size() && node.getPowerInterface().getPowerState().getLabel().equals(StandardPowerStateName.ON.getLabel())) {
                                NodePowerInterface nodePI = (NodePowerInterface)node.getPowerInterface();
                                nodePI.turnOff();
                        }

                }
        }

}