source: java/main/src/main/java/com/framsticks/experiment/WorkPackageLogic.java @ 105

package com.framsticks.experiment;

import java.util.IdentityHashMap;
import java.util.LinkedList;
import java.util.Map;

import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.LogManager;

import com.framsticks.params.EventListener;
import com.framsticks.params.MessageLogger;
import com.framsticks.params.SimplePrimitive;
import com.framsticks.params.annotations.FramsClassAnnotation;
import com.framsticks.params.annotations.ParamAnnotation;
import com.framsticks.structure.messages.Message;
import com.framsticks.structure.messages.ValueChange;
import com.framsticks.util.dispatching.FutureHandler;
import com.framsticks.util.dispatching.Future;

@FramsClassAnnotation(order = {"netLoadSaveLogic", "newestTaskScheduled", "newestResultReceived"})
public abstract class WorkPackageLogic<WP extends WorkPackage<WP>> extends AbstractExperimentLogic {

        private static final Logger log = LogManager.getLogger(WorkPackageLogic.class);

        @ParamAnnotation
        public final NetLoadSaveLogic<WP> netLoadSaveLogic;

        protected final Class<WP> packageJavaClass;

        protected final MessageLogger messages = new MessageLogger(WorkPackageLogic.class);

        protected final Map<Simulator, WP> sentPackages = new IdentityHashMap<>();
        protected final LinkedList<WP> queuedPackages = new LinkedList<>();

        protected final SimplePrimitive<String> newestTaskSent = new SimplePrimitive<>();
        protected final SimplePrimitive<String> newestResultReceived = new SimplePrimitive<>();


        /**
         * @param experiment
         */
        public WorkPackageLogic(Experiment experiment, Class<WP> packageJavaClass) {
                super(experiment);
                this.packageJavaClass = packageJavaClass;

                netLoadSaveLogic = new NetLoadSaveLogic<WP>(experiment, packageJavaClass) {

                        @Override
                        public void netload(final Simulator simulator, final FutureHandler<WP> netFuture) {
                                assert experiment.isActive();
                                log.debug("providing netload file for {}", simulator);

                                findNextPackage(new Future<WP> (netFuture) {

                                        @Override
                                        protected void result(WP net) {
                                                assert experiment.isActive();

                                                if (net == null) {
                                                        log.debug("no more packages left");
                                                        return;
                                                }
                                                WorkPackageLogic.this.messages.info("netload", net.sumUpTask());
                                                log.debug("sending package: {}", net);
                                                newestTaskSent.set(net.sumUpTask());
                                                sentPackages.put(simulator, net);

                                                netFuture.pass(net);
                                        }
                                });

                        }

                        @Override
                        public void netsave(Simulator simulator, WP netResult) {
                                assert experiment.isActive();

                                log.debug("received package from {}: {}", simulator, netResult);
                                WorkPackageLogic.this.messages.info("netsave", netResult.toString());

                                WP netSent = sentPackages.get(simulator);
                                if (netSent == null) {
                                        log.error("no task found in {} for received result {}", simulator, netResult);
                                        return;
                                }
                                sentPackages.remove(simulator);

                                try {
                                        WP netRemainder = netSent.getRemainder(netResult);
                                        if (netRemainder != null) {
                                                log.warn("queueing remainder: {}", netRemainder);
                                                queuedPackages.add(netRemainder);
                                        }
                                } catch (InvalidWorkPackage e) {
                                        log.error("in simulator {}, result {} is in no relation to task {} ({}), rescheduling", simulator, netResult, netSent, e.getShortMessage(new StringBuilder()));
                                        queuedPackages.add(netSent);
                                        return;
                                }

                                returnPackage(netResult);
                                // processFile();
                        }
                };
        }



        protected void findNextPackage(final FutureHandler<WP> future) {
                if (!queuedPackages.isEmpty()) {
                        WP workPackage = queuedPackages.pollFirst();
                        future.pass(workPackage);
                        return;
                }

                generateNextPackage(new Future<WP>(experiment) {

                        @Override
                        protected void result(WP result) {
                                if (result == null) {
                                        log.info("no more packages left");
                                        future.pass(null);
                                        return;
                                }
                                future.pass(result);
                        }
                });
        }

        protected abstract void generateNextPackage(FutureHandler<WP> future);
        protected abstract void returnPackage(WP workPackage);

        /**
         * @return the newestTaskScheduled
         */
        @ParamAnnotation(id = "newest_task_sent")
        public String getNewestTaskSent() {
                return newestTaskSent.get();
        }

        /**
         * @return the newestResultReceived
         */
        @ParamAnnotation(id = "newest_result_received")
        public String getNewestResultReceived() {
                return newestResultReceived.get();
        }

        @ParamAnnotation(id = "newest_task_sent_changed")
        public void addNewestTaskSentListener(EventListener<ValueChange> listener) {
                newestTaskSent.addListener(listener);
        }

        @ParamAnnotation(id = "newest_task_sent_changed")
        public void removeNewestTaskSentListener(EventListener<ValueChange> listener) {
                newestTaskSent.removeListener(listener);
        }

        @ParamAnnotation(id = "newest_result_received_changed")
        public void addNewestResultReceivedListener(EventListener<ValueChange> listener) {
                newestResultReceived.addListener(listener);
        }

        @ParamAnnotation(id = "newest_result_received_changed")
        public void removeNewestResultReceivedListener(EventListener<ValueChange> listener) {
                newestResultReceived.removeListener(listener);
        }

        @ParamAnnotation(id = "messages")
        public void addMessageListener(EventListener<Message> listener) {
                messages.add(listener);
        }

        @ParamAnnotation(id = "messages")
        public void removeMessageListener(EventListener<Message> listener) {
                messages.remove(listener);
        }



}