Changeset 19532 in osm for applications/editors/josm/plugins/routes/src/org

Timestamp:

2010-01-15T21:42:20+01:00 (15 years ago)

Author:

jttt

Message:

Cache route information when dataset didn't changed

Location:

applications/editors/josm/plugins/routes/src/org/openstreetmap/josm/plugins/routes

Files:

• PathBuilder.java (modified) (3 diffs)
• RouteLayer.java (modified) (6 diffs)

applications/editors/josm/plugins/routes/src/org/openstreetmap/josm/plugins/routes/PathBuilder.java

@@ -14 +14 @@
 public class PathBuilder {
 
-        private Map<Way, BitSet> wayRoutes = new HashMap<Way, BitSet>(); 
+        private Map<Way, BitSet> wayRoutes = new HashMap<Way, BitSet>();
+        private Collection<ConvertedWay> convertedWays;
 
         public void addWay(Way way, RouteDefinition route) {
@@ -30 +31 @@
 
         public Collection<ConvertedWay> getConvertedWays() {
-                Map<WayEnd, ConvertedWay> ways = new HashMap<WayEnd, ConvertedWay>();
+                if (convertedWays == null) {
+                        Map<WayEnd, ConvertedWay> ways = new HashMap<WayEnd, ConvertedWay>();
 
-                for (Entry<Way, BitSet> wayEntry:wayRoutes.entrySet()) {
-                        ConvertedWay way = new ConvertedWay(wayEntry.getValue(), wayEntry.getKey());
+                        for (Entry<Way, BitSet> wayEntry:wayRoutes.entrySet()) {
+                                ConvertedWay way = new ConvertedWay(wayEntry.getValue(), wayEntry.getKey());
 
-                        ConvertedWay wayBefore = ways.get(way.getStart());
-                        ConvertedWay wayAfter = ways.get(way.getStop());
+                                ConvertedWay wayBefore = ways.get(way.getStart());
+                                ConvertedWay wayAfter = ways.get(way.getStop());
 
-                        if (wayBefore != null) {
-                                removeWay(ways, wayBefore);
-                                way.connect(wayBefore);
-                        } 
+                                if (wayBefore != null) {
+                                        removeWay(ways, wayBefore);
+                                        way.connect(wayBefore);
+                                }
 
-                        if (wayAfter != null) {
-                                removeWay(ways, wayAfter);
-                                way.connect(wayAfter);
+                                if (wayAfter != null) {
+                                        removeWay(ways, wayAfter);
+                                        way.connect(wayAfter);
+                                }
+
+                                ways.put(way.getStart(), way);
+                                ways.put(way.getStop(), way);
                         }
 
-                        ways.put(way.getStart(), way);
-                        ways.put(way.getStop(), way);
+                        Set<ConvertedWay> uniqueWays = new HashSet<ConvertedWay>();
+                        uniqueWays.addAll(ways.values());
+                        convertedWays = uniqueWays;
                 }
-
-                Set<ConvertedWay> uniqueWays = new HashSet<ConvertedWay>();
-                uniqueWays.addAll(ways.values());
-                return uniqueWays;
+                return convertedWays;
         }
 
@@ -63 +67 @@
 
         public void clear() {
+                convertedWays = null;
                 wayRoutes.clear();
         }

applications/editors/josm/plugins/routes/src/org/openstreetmap/josm/plugins/routes/RouteLayer.java

@@ -16 +16 @@
 import org.openstreetmap.josm.data.osm.RelationMember;
 import org.openstreetmap.josm.data.osm.Way;
+import org.openstreetmap.josm.data.osm.event.AbstractDatasetChangedEvent;
+import org.openstreetmap.josm.data.osm.event.DataSetListenerAdapter;
+import org.openstreetmap.josm.data.osm.event.DatasetEventManager;
+import org.openstreetmap.josm.data.osm.event.DatasetEventManager.FireMode;
 import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
 import org.openstreetmap.josm.gui.MapView;
@@ -27 +31 @@
 import org.openstreetmap.josm.tools.ImageProvider;
 
-public class RouteLayer extends Layer {
+public class RouteLayer extends Layer implements DataSetListenerAdapter.Listener {
 
         private final PathPainter pathPainter;
         private final PathBuilder pathBuilder = new PathBuilder();
         private final List<RouteDefinition> routes = new ArrayList<RouteDefinition>();
+        private volatile boolean datasetChanged = true;
 
         public RouteLayer(RoutesXMLLayer xmlLayer) {
@@ -53 +58 @@
                         pathPainter = new NarrowLinePainter(this);
                 }
+
+                DatasetEventManager.getInstance().addDatasetListener(new DataSetListenerAdapter(this), FireMode.IMMEDIATELY);
         }
 
@@ -103 +110 @@
                 }
 
-                pathBuilder.clear();
+                if (datasetChanged) {
+                        datasetChanged = false;
+                        pathBuilder.clear();
 
-                for (Relation relation:dataset.getRelations()) {
-                        for (RouteDefinition route:routes) {
-                                if (route.matches(relation)) {
-                                        addRelation(relation, route);
+                        for (Relation relation:dataset.getRelations()) {
+                                for (RouteDefinition route:routes) {
+                                        if (route.matches(relation)) {
+                                                addRelation(relation, route);
+                                        }
                                 }
                         }
-                }
 
-                for (Way way:dataset.getWays()) {
-                        for (RouteDefinition route:routes) {
-                                if (route.matches(way)) {
-                                        pathBuilder.addWay(way, route);
+                        for (Way way:dataset.getWays()) {
+                                for (RouteDefinition route:routes) {
+                                        if (route.matches(way)) {
+                                                pathBuilder.addWay(way, route);
+                                        }
                                 }
                         }
@@ -128 +138 @@
                 g.setStroke(stroke);
                 g.setColor(color);
+
         }
 
@@ -139 +150 @@
         }
 
+        public void processDatasetEvent(AbstractDatasetChangedEvent event) {
+                datasetChanged = true;
+        }
+
 }