source: xssim/branches/tpiontek/src/example/localplugin/FCFSConsolidationClusterLocalPlugin.java @ 269

package example.localplugin;

import gridsim.Gridlet;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Properties;

import schedframe.resources.PowerState;
import schedframe.scheduling.TaskInterface;
import schedframe.scheduling.events.SchedulingEvent;
import schedframe.scheduling.plugin.grid.ModuleList;
import test.rewolucja.GSSIMJobInterface;
import test.rewolucja.resources.manager.implementation.ClusterResourceManager;
import test.rewolucja.resources.manager.interfaces.ResourceManagerInterface;
import test.rewolucja.resources.physical.implementation.ComputingNode;
import test.rewolucja.scheduling.JobRegistryInterface;
import test.rewolucja.scheduling.plan.SchedulingPlanInterfaceNew;
import test.rewolucja.scheduling.plan.SchedulingPlanNew;
import test.rewolucja.scheduling.queue.Queue;
import test.rewolucja.scheduling.queue.QueueList;

public class FCFSConsolidationClusterLocalPlugin extends BaseLocalPlugin {
        
        private int scenario = 1;

        public FCFSConsolidationClusterLocalPlugin () {
        }

        public SchedulingPlanInterfaceNew schedule(SchedulingEvent event, QueueList queues, JobRegistryInterface jobRegistry,
                        ResourceManagerInterface resManager, ModuleList modules) {

                ClusterResourceManager resourceManager = (ClusterResourceManager) resManager;
                SchedulingPlanNew plan = new SchedulingPlanNew();
                // chose the events types to serve.
                // Different actions for different events are possible.
                switch (event.getType()) {
                case START_TASK_EXECUTION:
                case TASK_FINISHED:
                        // our tasks are placed only in first queue (see
                        // BaseLocalPlugin.placeJobsInQueues() method)
                        Queue q = queues.get(0);
                        // check all tasks in queue

                        for (int i = 0; i < q.size(); i++) {
                                GSSIMJobInterface<?> job = q.get(i);
                                TaskInterface<?> task = (TaskInterface<?>) job;
                                // if status of the tasks in READY
                                if (task.getStatus() == Gridlet.READY) {

                                        ComputingNode node = chooseResourcesForExecution(resourceManager, PowerState.ON, task);
                                        if (node  != null) {
                                                System.out.println("Uruchamiam na zasobie: " + node.getName());
                                                addToSchedulingPlan(plan, task, node.getName());
                                        } 
                                        else
                                        {
                                                node = chooseResourcesForExecution(resourceManager, PowerState.OFF, task);
                                                
                                                if( node != null)
                                                {
                                                        System.out.println("Wlaczam wezel: " + node.getName());
                                                        node.getPowerInterface().setPowerState( PowerState.ON);
                                                        i--;
                                                }       
                                        }
                                }
                        }
                        
                        switch( scenario)
                        {
                                case 0: break;
                                case 1:
                                        List<ComputingNode> nodes = resourceManager.getComputingNodes();
                                        for( ComputingNode node : nodes)
                                                if( node.getFreeProcessors().size() == node.getProcessorsNumber())
                                                {
                                                        node.getPowerInterface().setPowerState( PowerState.OFF);
                                                }
                                        break;
                        }
                        

                        break;
                }
                return plan;
        }
        
        private ComputingNode chooseResourcesForExecution(ClusterResourceManager resourceManager, PowerState status, TaskInterface<?> task) {

                List<ComputingNode> nodes = resourceManager.getComputingNodes();
                nodes = findSuitableNodes(task, status, nodes);
                
                Collections.sort(nodes, new Comparator<ComputingNode>(){
                    public int compare(ComputingNode node1, ComputingNode node2){    
                        return node1.getCategory().getName().compareTo(node2.getCategory().getName());
                    }
                });
                
                if(nodes.size() > 0)
                        return nodes.get(0);
                                 
                return null;
        }
        
        private List<ComputingNode> findSuitableNodes(TaskInterface<?> task, PowerState status, List<ComputingNode> nodes){
                int cpuRequest;
                try {
                        cpuRequest = Double.valueOf(task.getCpuCntRequest()).intValue();
                } catch (NoSuchFieldException e) {
                        cpuRequest = 1;
                }
                
                List<ComputingNode> suitableNodes = new ArrayList<ComputingNode>();
                for(ComputingNode node: nodes)
                {
                                switch( status)
                                {
                                        case ON:
                                                if(node.getFreeProcessorsNumber() >= cpuRequest)
                                                        suitableNodes.add(node);
                                                break;
                                        case OFF:
                                                if( node.getProcessorsNumber() >= cpuRequest)
                                                        suitableNodes.add(node);
                                                break;
                                }
                }
        
                return suitableNodes;
        }
        
        public String getName() {
                return getClass().getName();
        }

        public void init(Properties properties) {
                // no extra initialization is expected.
        }

}