1 /*******************************************************************************
2 * Copyright (c) 2012 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.maps.eclipse;
14 import java.awt.Image;
15 import java.util.HashSet;
16 import java.util.Hashtable;
20 import org.simantics.maps.query.IQueryListener;
21 import org.simantics.maps.query.Query;
22 import org.simantics.maps.tile.IFilter;
23 import org.simantics.maps.tile.ITileJobQueue;
24 import org.simantics.maps.tile.ITileListener;
25 import org.simantics.maps.tile.ITileProvider;
26 import org.simantics.maps.tile.TileKey;
29 * @author Tuukka Lehtonen
32 public class TileJobQueue implements ITileJobQueue {
34 private ITileProvider provider;
36 private Map<TileKey, TileJob> queries = new Hashtable<TileKey, TileJob>();
38 public TileJobQueue() {
41 public void setTileProvider(ITileProvider provider) {
42 this.provider = provider;
45 public void addJob(Query<TileKey, Image> job) {
46 TileJob tj = new TileJob(job, provider);
47 queries.put(job.source, tj);
51 public void addAsFirstJob(Query<TileKey, Image> job) {
52 TileJob tj = new TileJob(job, provider);
53 queries.put(job.source, tj);
57 public void removeJob(Query<TileKey, Image> job) {
58 TileJob t = queries.remove(job.source);
65 public void addJob(final TileKey key, final ITileListener listener) {
66 addJob(new Query<TileKey, Image>(key, new IQueryListener<TileKey, Image>() {
68 public void queryCanceled(Query<TileKey, Image> job) {
69 listener.tileCanceled(key);
72 public void queryFailed(Query<TileKey, Image> job, Exception error) {
73 listener.tileFailed(key, error);
76 public void queryComplete(Query<TileKey, Image> job, Image result) {
77 listener.tileUpdated(key, result);
83 public void filterQueries(IFilter<TileKey> filter) {
84 Set<TileKey> keys = new HashSet<TileKey>(queries.keySet());
85 for(TileKey key : keys) {
86 if (!filter.select(key)) {
87 TileJob t = queries.remove(key);
90 t.getQuery().listener.queryCanceled(t.getQuery());
98 for (TileJob job : queries.values()) {