source: xssim/src/example/localplugin/FCFSLocalPlugin.java @ 104

package example.localplugin;

import gridsim.Gridlet;
import gridsim.gssim.SubmittedTask;
import gssim.schedframe.scheduling.ExecTaskInterface;

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

import schedframe.resources.PowerState;
import schedframe.resources.units.Memory;
import schedframe.resources.units.ResourceUnit;
import schedframe.scheduling.TaskInterface;
import schedframe.scheduling.events.SchedulingEvent;
import schedframe.scheduling.plugin.grid.ModuleList;
import schedframe.scheduling.utils.ResourceParameterName;
import test.rewolucja.GSSIMJobInterface;
import test.rewolucja.resources.ProcessingElements;
import test.rewolucja.resources.ResourceStatus;
import test.rewolucja.resources.ResourceType;
import test.rewolucja.resources.exception.ResourceException;
import test.rewolucja.resources.manager.interfaces.ResourceManagerInterface;
import test.rewolucja.resources.physical.base.ComputingResource;
import test.rewolucja.resources.physical.implementation.CPU;
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.GSSIMQueue;
import test.rewolucja.scheduling.queue.QueueList;

/**
 * 
 * @author Marcin Krystek
 * 
 */
public class FCFSLocalPlugin extends BaseLocalPlugin {

        public FCFSLocalPlugin() {
        }

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

                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.placeTasksInQueues() method)
                        GSSIMQueue q = queues.get(0);
                        // check all tasks in queue

                        /*if(q.size()>0){
                                ComputingNode cn = null;
                                try {
                                        cn = (ComputingNode)resourceManager.getResourcesOfType(ResourceType.COMPUTING_NODE).get(0);
                                } catch (ResourceException e) {
                                        // TODO Auto-generated catch block
                                        e.printStackTrace();
                                }
                                if( cn.getPowerInterface().getPowerState()==PowerState.OFF){
                                        cn.getPowerInterface().setPowerState(PowerState.ON);
                                }
                        }*/
                        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) {

                                        SubmittedTask subTask = (SubmittedTask) task;
                                        // DataCenterResourceManager dcrm =
                                        // (DataCenterResourceManager)unitsManager;
                                        // List<CPU> cpus = dcrm.getProcessors();
                                        // cpus.get(0).getPowerInterface().setFrequency(100);
                                        Map<ResourceParameterName, ResourceUnit> choosenResources = null;
                                        choosenResources = chooseResourcesForExecution(resourceManager, subTask);
                                        // String name =
                                        // chooseProviderForExecution(resourceManager);
                                        if (choosenResources != null) {
                                                // q.remove(i);
                                                // i--;
                                                addToSchedulingPlan(plan, task, choosenResources);
                                        }

                                }
                        }

                        /*ComputingNode cn = null;
                        try {
                                cn = (ComputingNode)resourceManager.getResourcesOfType(ResourceType.COMPUTING_NODE).get(0);
                        } catch (ResourceException e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                        }
                        if(cn.getFreeProcessorsNumber()==3){
                                cn.getPowerInterface().setPowerState(PowerState.OFF);
                        }*/
                        break;
                }
                return plan;
        }

        public HashMap<ResourceParameterName, ResourceUnit> chooseResourcesForExecution(
                        ResourceManagerInterface resourceManager, ExecTaskInterface task) {

                HashMap<ResourceParameterName, ResourceUnit> map = new HashMap<ResourceParameterName, ResourceUnit>();

                int cpuRequest;
                try {
                        cpuRequest = Double.valueOf(task.getCpuCntRequest()).intValue();
                } catch (NoSuchFieldException e) {
                        cpuRequest = 1;
                }

                if (cpuRequest != 0) {
                        List<ComputingResource> choosenResources = null;
                        List<ComputingResource> processingElements = null;
                        try {
                                Properties properties = new Properties();
                                properties.setProperty("type", ResourceType.CPU.toString());
                                // properties.setProperty("status",
                                // ResourceStatus.FREE.toString());
                                processingElements = (List<ComputingResource>) resourceManager.filterResources(properties);
                        } catch (Exception e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                        }
                        if (processingElements.size() < cpuRequest) {
                                // log.warn("Task requires more cpus than is availiable in this resource.");
                                return null;
                        }

                        choosenResources = new ArrayList<ComputingResource>();

                        for (int i = 0; i < processingElements.size() && cpuRequest > 0; i++) {
                                if (processingElements.get(i).getStatus() == ResourceStatus.FREE) {
                                        choosenResources.add(processingElements.get(i));
                                        cpuRequest--;
                                        CPU cpu = (CPU)processingElements.get(i);
                                        //cpu.getParent().getPowerProfile().setPowerState(PowerState.OFF);
                                }
                        }
                        if (cpuRequest > 0) {
                                // log.info("Task " + task.getJobId() + "_" + task.getId() +
                                // " requires more cpus than is availiable in this moment.");
                                return null;
                        }

                        ProcessingElements result = new ProcessingElements(processingElements.get(0).getParent().getName());
                        result.addAll(choosenResources);
                        map.put(ResourceParameterName.PROCESSINGELEMENTS, result);

                }
                int memoryRequest;
                try {
                        memoryRequest = Double.valueOf(task.getMemoryRequest()).intValue();
                } catch (NoSuchFieldException e) {
                        memoryRequest = 0;
                }
                if (memoryRequest != 0) {
                        List<ComputingNode> nodes = null;
                        try {
                                Properties properties = new Properties();
                                properties.setProperty("type", ResourceType.COMPUTING_NODE.toString());
                                nodes = (List<ComputingNode>) resourceManager.filterResources(properties);
                        } catch (Exception e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                        }
                        Memory memory = null;
                        for (ComputingNode node : nodes) {

                                if (node.getFreeMemory() >= memoryRequest) {
                                        memory = new Memory(node.getMemory(), memoryRequest, memoryRequest);
                                } else
                                        return null;
                        }
                        map.put(ResourceParameterName.MEMORY, memory);

                }

                return map;
        }

        public String getName() {
                return getClass().getName();
        }

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

        public String chooseProviderForExecution(ResourceManagerInterface unitsManager) {
                List<ComputingResource> processingElements;
                Properties properties = new Properties();
                properties.setProperty("type", ResourceType.COMPUTING_NODE.toString());
                // properties.setProperty("status", ResourceStatus.FREE.toString());
                processingElements = (List<ComputingResource>) unitsManager.filterResources(properties);
                return processingElements.get(0).getName();
        }

}