+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2007, 2019 Association for Decentralized Information Management in
- * Industry THTH ry.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Semantum Oy - initial API and implementation
- *******************************************************************************/
-package org.simantics.district.network.profile;
-
-import java.util.Optional;
-import java.util.concurrent.atomic.AtomicLong;
-
-import org.simantics.db.ReadGraph;
-import org.simantics.db.Resource;
-import org.simantics.db.common.request.UnaryRead;
-import org.simantics.db.exception.DatabaseException;
-import org.simantics.db.procedure.Listener;
-import org.simantics.db.request.Read;
-import org.simantics.diagram.profile.StyleBase;
-import org.simantics.diagram.stubs.DiagramResource;
-import org.simantics.district.network.ontology.DistrictNetworkResource;
-import org.simantics.scenegraph.INode;
-import org.simantics.scenegraph.profile.EvaluationContext;
-import org.simantics.scenegraph.profile.Group;
-import org.simantics.scenegraph.profile.Observer;
-import org.simantics.scenegraph.profile.common.ObserverGroupListener;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public abstract class ThrottledStyleBase<Result> extends StyleBase<Optional<Result>> {
-
- private static final Logger LOGGER = LoggerFactory.getLogger(ThrottledStyleBase.class);
- private static final long DEFAULT_INTERVAL = 2000;
-
- //private long lastCalculateTimestamp = 0;
- private AtomicLong interval = new AtomicLong(DEFAULT_INTERVAL);
- private Listener<Optional<Result>> resultListener;
-
- @Override
- protected Read<Optional<Result>> getStyleCalculationRequest(Resource runtimeDiagram, Resource entry, Resource item) {
- //Simantics.getSession().asyncRequest(new ProfileUpdateIntervalRead(runtimeDiagram), new ProfileUpdateIntervalListener(runtimeDiagram, entry, item));
- return super.getStyleCalculationRequest(runtimeDiagram, entry, item);
- }
-
- @Override
- protected Listener<Optional<Result>> getStyleResultListener(ObserverGroupListener groupListener, Resource item,
- Group group, Observer observer, Resource runtimeDiagram) {
- resultListener = super.getStyleResultListener(groupListener, item, group, observer, runtimeDiagram);
- return resultListener;
- }
-
- @Override
- public final Optional<Result> calculateStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry,
- Resource groupItem) throws DatabaseException {
-// Needs fixing - this will result registration of listeners for nothing in the cache
-// long currentTimestamp = System.currentTimeMillis();
-// if (lastCalculateTimestamp > (currentTimestamp - interval.get())) {
-// LOGGER.debug("Throttling result calculation for {} {} {} {}", runtimeDiagram, entry, groupItem, interval.get());
-// return Optional.empty();
-// }
-// lastCalculateTimestamp = currentTimestamp;
- // let's calculate
- return Optional.ofNullable(calculateThrottledStyle(graph, runtimeDiagram, entry, groupItem));
- }
-
- public abstract Result calculateThrottledStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource groupItem) throws DatabaseException;
-
- @Override
- public final void applyStyleForNode(EvaluationContext evaluationContext, INode node, Optional<Result> result) {
- if (!Optional.empty().equals(result) && result != null) {
- applyThrottledStyleForNode(evaluationContext, node, result.get());
- } else {
- LOGGER.debug("Do not apply as results are unchanged for {} {} {}", evaluationContext, node, result);
- // TODO: fix this duplicate method invocation with null
- applyThrottledStyleForNode(evaluationContext, node, null);
- }
- }
-
- public abstract void applyThrottledStyleForNode(EvaluationContext evaluationContext, INode node, Result result);
-
- private static class ProfileUpdateIntervalRead extends UnaryRead<Resource, Long> {
-
- public ProfileUpdateIntervalRead(Resource parameter) {
- super(parameter);
- }
-
- @Override
- public Long perform(ReadGraph graph) throws DatabaseException {
- Resource configuration = graph.getPossibleObject(parameter, DiagramResource.getInstance(graph).RuntimeDiagram_HasConfiguration);
- DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
- Long interval = DEFAULT_INTERVAL;
- if (configuration != null) {
- // TODO: take back to use when throttled profile is actually working
- // interval = graph.getPossibleRelatedValue(configuration, DN.Diagram_profileUpdateInterval, Bindings.LONG);
- }
- return interval != null ? interval : DEFAULT_INTERVAL;
- }
- }
-
- private class ProfileUpdateIntervalListener implements Listener<Long> {
-
- private Resource runtimeDiagram;
- private Resource entry;
- private Resource item;
-
- public ProfileUpdateIntervalListener(Resource runtimeDiagram, Resource entry, Resource item) {
- this.runtimeDiagram = runtimeDiagram;
- this.entry = entry;
- this.item = item;
- }
-
- @Override
- public void execute(Long result) {
- interval.set(result);
- }
-
- @Override
- public void exception(Throwable t) {
- LOGGER.error("Could not listen interval from runtime diagram {}", runtimeDiagram, t);
- }
-
- @Override
- public boolean isDisposed() {
- return resultListener.isDisposed();
- }
-
- @Override
- public int hashCode() {
- final int prime = 31;
- int result = 1;
- result = prime * result + getEnclosingInstance().hashCode();
- result = prime * result + ((entry == null) ? 0 : entry.hashCode());
- result = prime * result + ((item == null) ? 0 : item.hashCode());
- result = prime * result + ((runtimeDiagram == null) ? 0 : runtimeDiagram.hashCode());
- return result;
- }
-
- @Override
- public boolean equals(Object obj) {
- if (this == obj)
- return true;
- if (obj == null)
- return false;
- if (getClass() != obj.getClass())
- return false;
- ProfileUpdateIntervalListener other = (ProfileUpdateIntervalListener) obj;
- if (!getEnclosingInstance().equals(other.getEnclosingInstance()))
- return false;
- if (entry == null) {
- if (other.entry != null)
- return false;
- } else if (!entry.equals(other.entry))
- return false;
- if (item == null) {
- if (other.item != null)
- return false;
- } else if (!item.equals(other.item))
- return false;
- if (runtimeDiagram == null) {
- if (other.runtimeDiagram != null)
- return false;
- } else if (!runtimeDiagram.equals(other.runtimeDiagram))
- return false;
- return true;
- }
-
- private ThrottledStyleBase<Result> getEnclosingInstance() {
- return ThrottledStyleBase.this;
- }
- }
-
-}
Code Review / simantics / district.git / blobdiff