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Opened 12 years ago

Closed 8 years ago

#7280 closed defect (wontfix)

Bing (unsuccessfully) loads images before attribution data is ready

Reported by: bastiK Owned by: team
Priority: normal Milestone:
Component: Core imagery Version:
Keywords: tms bing attribution Cc: madnag4u, wiktorn

Description

After adding Bing layer, I get the following console output

failed loading 13/4246/2754 null
failed loading 13/4248/2755 null
failed loading 13/4247/2754 null
failed loading 13/4246/2756 null
failed loading 13/4248/2754 null
failed loading 13/4247/2756 null
failed loading 13/4246/2755 null
failed loading 13/4247/2755 null
failed loading 13/4249/2754 null
failed loading 13/4249/2755 null
failed loading 13/4250/2755 null
failed loading 13/4250/2756 null
failed loading 13/4250/2754 null
failed loading 13/4248/2756 null
failed loading 13/4249/2756 null
Successfully loaded Bing attribution data.

This indicates, that JOSM tries to load images for Bing before the attribution data is fetched.

Attachments (0)

Change History (30)

comment:1 by skyper, 12 years ago

One reason this was not reported ealier is that the attributions are loaded when opening the download dialog (#7284).

comment:2 by bastiK, 12 years ago

Is this fixed? At the moment I get

Successfully loaded Bing attribution data.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.

comment:3 by simon04, 12 years ago

I thought this was fixed in [o27519].

This output makes no sense to me. Is this error reproducible with fresh settings?

comment:4 by bastiK, 12 years ago

Yes. I added some debugging output, maybe this helps?

console:

#####paint
#####paint
#####paint
getAttribution() 0
start to get attribution
getAttribution() 1
getAttribution() 2
getAttribution() 3
getAttribution() 4
getAttribution() 5
call1
call2
getAttribution() 6
TMSLayer: Successfully loaded Bing attribution data.
call3
getAttribution()/TimeoutException 5
Bing: attribution data is not yet loaded.
failed loading 10/552/329 null
getAttribution()/TimeoutException 4
Bing: attribution data is not yet loaded.
failed loading 10/552/328 null
getAttribution()/TimeoutException 0
Bing: attribution data is not yet loaded.
failed loading 10/548/329 null
getAttribution()/TimeoutException 3
Bing: attribution data is not yet loaded.
failed loading 10/552/327 null
getAttribution()/TimeoutException 2
Bing: attribution data is not yet loaded.
failed loading 10/548/327 null
getAttribution()/TimeoutException 1
Bing: attribution data is not yet loaded.
failed loading 10/548/328 null
getAttribution()/TimeoutException 6
Bing: attribution data is not yet loaded.
getAttribution() 7
getAttribution()/TimeoutException 7
Bing: attribution data is not yet loaded.
getAttribution() 8
call4
getAttribution()/ret 8

  • src/org/openstreetmap/josm/gui/layer/TMSLayer.java

     
    237237                URL u = getAttributionUrl();
    238238                UTFInputStreamReader in = UTFInputStreamReader.create(u.openStream(), "utf-8");
    239239                String r = new Scanner(in).useDelimiter("\\A").next();
    240                 System.out.println("Successfully loaded Bing attribution data.");
     240                System.out.println("TMSLayer: Successfully loaded Bing attribution data.");
    241241                return r.getBytes("utf-8");
    242242            }
    243243        }
    … …  
    248248
    249249                @Override
    250250                public List<Attribution> call() throws Exception {
     251                    System.err.println("call1");
     252               
    251253                    BingAttributionData attributionLoader = new BingAttributionData();
     254                    System.err.println("call2");
    252255                    int waitTimeSec = 1;
    253256                    while (true) {
    254257                        try {
    255258                            String xml = attributionLoader.updateIfRequiredString();
    256                             return parseAttributionText(new InputSource(new StringReader((xml))));
     259                        System.err.println("call3");
     260                        List<Attribution> ret = parseAttributionText(new InputSource(new StringReader((xml))));
     261                        System.err.println("call4");
     262                            return ret;
    257263                        } catch (IOException ex) {
    258264                            System.err.println("Could not connect to Bing API. Will retry in " + waitTimeSec + " seconds.");
    259265                            Thread.sleep(waitTimeSec * 1000L);
    … …  
    11601166     */
    11611167    @Override
    11621168    public void paint(Graphics2D g, MapView mv, Bounds bounds) {
     1169        System.err.println("### TMSLayer/paint");
    11631170        //long start = System.currentTimeMillis();
    11641171        EastNorth topLeft = mv.getEastNorth(0, 0);
    11651172        EastNorth botRight = mv.getEastNorth(mv.getWidth(), mv.getHeight());

  • src/org/openstreetmap/josm/gui/MapView.java

     
    460460     * Draw the component.
    461461     */
    462462    @Override public void paint(Graphics g) {
     463        System.err.println("#####paint");
    463464        if (BugReportExceptionHandler.exceptionHandlingInProgress())
    464465            return;

  • jmapviewer/tilesources/BingAerialTileSource.java

     
    214214            }
    215215        };
    216216    }
    217 
     217static int dd = 0;
    218218    protected List<Attribution> getAttribution() {
     219//        Thread.currentThread().dumpStack();
     220    int d = dd++;
     221System.err.println("getAttribution() "+d);
    219222        if (attributions == null) {
    220223            // see http://www.cs.umd.edu/~pugh/java/memoryModel/DoubleCheckedLocking.html
    221224            synchronized (BingAerialTileSource.class) {
    222225                if (attributions == null) {
     226                    System.err.println("start to get attribution");
    223227                    attributions = Executors.newSingleThreadExecutor().submit(getAttributionLoaderCallable());
    224228                }
    225229            }
    226230        }
    227231        try {
    228             return attributions.get(1000, TimeUnit.MILLISECONDS);
     232            List<Attribution> ret = attributions.get(1000, TimeUnit.MILLISECONDS);
     233System.err.println("getAttribution()/ret "+d);
     234            return ret;
    229235        } catch (TimeoutException ex) {
     236System.err.println("getAttribution()/TimeoutException "+d);
    230237            System.err.println("Bing: attribution data is not yet loaded.");
    231238        } catch (ExecutionException ex) {
    232239            throw new RuntimeException(ex.getCause());

comment:5 by bastiK, 12 years ago

It does seem to work however, just the console output looks strange.

comment:6 by simon04, 12 years ago

Interestingly, the parsing takes a "long" time (call3 to call4).

To fix this, …:

  • we could increase the timeout (from 1000 to e.g. 5000 milliseconds)
  • change the console output:
    Successfully loaded Bing attribution data --> Successfully fetched Bing attribution data
    Bing: attribution data is not yet loaded --> Bing: attribution data is not yet ready

in reply to:  3 comment:7 by Don-vip, 12 years ago

Replying to simon04:

I thought this was fixed in [o27519].

I can confirm this update fixed the problem on my config (I was seeing them almost every day but never took time to report the bug, as a zoom/unzoom was enough to reload missing tiles).

comment:8 by simon04, 12 years ago

From #7284: skyper:

It seems to work but I get strange messages on the console:

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2012-01-30 02:32:23
Last Changed Author: stoecker
Revision: 4878
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2012-01-30 00:02:54 +0100 (Mon, 30 Jan 2012)
Last Changed Rev: 4878

Warnung: Fehlende Einstellungsdatei "$HOME/.josm/preferences.xml". Datei mit Standardeinstellungen wird erstellt.
GET http://api.openstreetmap.org/api/capabilities... OK
Successfully loaded Bing attribution data.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
GET http://api.openstreetmap.org/api/0.6/map?bbox=....

comment:9 by Don-vip, 12 years ago

I still have this problem in r5402:

1. Download some OSM data of a given area
2. Add Bing layer
3. All tiles fail to load, and I can see on the console:

Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Bing: attribution data is not yet loaded.
Failed loading http://ecn.t2.tiles.virtualearth.net/tiles/a1202220232311021121.jpeg?g=1008: null
Failed loading http://ecn.t1.tiles.virtualearth.net/tiles/a1202220232311021120.jpeg?g=1008: null
Failed loading http://ecn.t0.tiles.virtualearth.net/tiles/a1202220232311021031.jpeg?g=1008: null
Failed loading http://ecn.t1.tiles.virtualearth.net/tiles/a1202220232311021103.jpeg?g=1008: null
Failed loading http://ecn.t2.tiles.virtualearth.net/tiles/a1202220232311021011.jpeg?g=1008: null
Failed loading http://ecn.t0.tiles.virtualearth.net/tiles/a1202220232311021102.jpeg?g=1008: null
Failed loading http://ecn.t0.tiles.virtualearth.net/tiles/a1202220232311021101.jpeg?g=1008: null
Failed loading http://ecn.t3.tiles.virtualearth.net/tiles/a1202220232311021013.jpeg?g=1008: null
Failed loading http://ecn.t1.tiles.virtualearth.net/tiles/a1202220232311021010.jpeg?g=1008: null
Failed loading http://ecn.t2.tiles.virtualearth.net/tiles/a1202220232311021012.jpeg?g=1008: null
Failed loading http://ecn.t3.tiles.virtualearth.net/tiles/a1202220232311021100.jpeg?g=1008: null
Failed loading http://ecn.t3.tiles.virtualearth.net/tiles/a1202220232311021030.jpeg?g=1008: null

Restarting JOSM or refreshing the tiles solve the problem, I think it's maybe cache-related ?

comment:10 by Don-vip, 12 years ago

In 5406/josm:

see #7280 - Change synchronization mechanism of MapView when being notified of paint preferences change.

The previous mechanism leads to a deadlock when the paint() method triggers itself a paint preference change, such as when a TMS layer wants to paint attribution.
This caused an HMI freeze of 1s and Bing layer to never display tiles at its first display without cached attribution.

in reply to:  6 ; comment:11 by Don-vip, 12 years ago

Replying to simon04:

Interestingly, the parsing takes a "long" time (call3 to call4).

Indeed. The method org.openstreetmap.gui.jmapviewer.tilesources.parseAttributionText() takes more than 300ms to parse Bing attribution, this is way too long. Replacing all these Xpath expressions with a faster StaX parsing would reduce this time drastically.

in reply to:  10 comment:12 by bastiK, 12 years ago

Replying to Don-vip:

In 5406/josm:

see #7280 - Change synchronization mechanism of MapView when being notified of paint preferences change.

The previous mechanism leads to a deadlock when the paint() method triggers itself a paint preference change, such as when a TMS layer wants to paint attribution.
This caused an HMI freeze of 1s and Bing layer to never display tiles at its first display without cached attribution.

Thanks for fixing this deadlock, didn't think of that... :)

in reply to:  11 ; comment:13 by bastiK, 12 years ago

Replying to Don-vip:

Replying to simon04:

Interestingly, the parsing takes a "long" time (call3 to call4).

Indeed. The method org.openstreetmap.gui.jmapviewer.tilesources.parseAttributionText() takes more than 300ms to parse Bing attribution, this is way too long. Replacing all these Xpath expressions with a faster StaX parsing would reduce this time drastically.

Wow, that's is really slow for such a small document. Someone wrote a DOM parser in #6866, this might speed it up a little.

in reply to:  13 comment:14 by Don-vip, 12 years ago

Replying to bastiK:

Someone wrote a DOM parser in #6866, this might speed it up a little.

Nice ! I'll try that tonight :)

comment:15 by simon04, 11 years ago

Any update on this?

comment:16 by skyper, 11 years ago

Ticket #8936 has been marked as a duplicate of this ticket.

comment:17 by skyper, 11 years ago

Component: Core → Core imagery
Keywords: attribution added

comment:18 by Don-vip, 11 years ago

Ticket #8797 has been marked as a duplicate of this ticket.

comment:19 by Don-vip, 11 years ago

Ticket #9050 has been marked as a duplicate of this ticket.

comment:20 by Don-vip, 11 years ago

Cc: madnag4u added

comment:21 by simon04, 11 years ago

The reason for this issue is that load Bing attribution data (which contains the actual URL for accessing tiles) upon first usage of the layer. At the moment, there's a timeout set to 1 second for accessing the attribution data. If that cannot be fetched from bing.com and parsed within this time, erroneous tiles will be displayed.

Possible fix: increase the timeout to say 10 seconds in BingAerialTileSource:231

comment:22 by mdk, 10 years ago

I took a closer look into the code. The attribution for Bing actually contains 163 (!) entries:

Attribution: © 2012 DigitalGlobe z[14:21], lat[-67.0:27.0], lon[-179.99:0.0]
Attribution: © 2012 DigitalGlobe z[14:21], lat[27.0:87.0], lon[-179.99:-126.5]
Attribution: © 2012 DigitalGlobe z[14:21], lat[48.4:87.0], lon[-126.5:-5.75]
Attribution: © 2012 DigitalGlobe z[14:21], lat[-67.0:86.5], lon[28.0:179.99]
Attribution: © 2012 DigitalGlobe z[14:21], lat[-67.0:37.8], lon[0.0:28.0]
Attribution: © 2012 DigitalGlobe z[14:21], lat[37.7:59.8], lon[18.5:28.0]
Attribution: © 2012 DigitalGlobe z[14:21], lat[43.0:48.4], lon[-81.6:-10.0]
Attribution: © 2012 DigitalGlobe z[14:21], lat[27.0:43.0], lon[-70.0:-10.0]
Attribution: © 2012 DigitalGlobe z[14:21], lat[27.0:35.8], lon[-10.0:0.0]
Attribution: © 2012 DigitalGlobe z[14:21], lat[27.0:32.3], lon[-120.0:-105.8]
Attribution: © 2012 DigitalGlobe z[14:21], lat[43.4:54.9], lon[13.78:18.5]
Attribution: Image courtesy of NASA z[1:8], lat[-90.0:90.0], lon[-180.0:180.0]
Attribution: © Harris Corp, Earthstar Geographics LLC z[9:13], lat[-90.0:90.0], lon[-180.0:180.0]
Attribution: Image courtesy of USGS z[14:17], lat[17.99:61.39], lon[-150.11:-65.57]
Attribution: © Getmapping plc z[14:21], lat[49.94:60.17], lon[-6.82:1.78]
Attribution: © 2012 GeoEye z[14:21], lat[48.95:65.5], lon[-152.0:-95.4]
Attribution: © 2012 GeoEye z[14:21], lat[45.15:48.9], lon[-73.2:-70.2]
Attribution: © 2012 GeoEye z[14:21], lat[31.87:49.0], lon[-67.56:-50.46]
Attribution: © 2012 GeoEye z[14:21], lat[-23.0:30.0], lon[-180.0:-145.0]
Attribution: © 2012 GeoEye z[14:21], lat[-37.7:26.5], lon[-110.0:-33.0]
Attribution: © 2012 GeoEye z[14:21], lat[-46.0:67.0], lon[-20.0:180.0]
Attribution: © 2012 Pasco z[14:21], lat[23.5:46.65], lon[122.5:151.66]
Attribution: © GeoContent / (p) Intergraph z[14:21], lat[47.0:55.5], lon[5.0:16.0]
Attribution: © GeoContent / (p) Intergraph z[14:21], lat[46.25:49.2], lon[9.4:17.3]
Attribution: © 2012 Intermap z[1:21], lat[49.0:60.0], lon[-11.0:2.0]
Attribution: Image courtesy of the IndianaMap z[14:21], lat[37.7:41.9], lon[-88.2:-84.7]
Attribution: Image courtesy of the Nevada State Mapping Advisory Committee z[14:21], lat[34.85:42.12], lon[-120.2:-113.91]
Attribution: © 2012 InterAtlas z[14:21], lat[48.37:49.28], lon[1.4:3.37]
Attribution: © 2012 InterAtlas z[14:21], lat[47.72:48.05], lon[1.67:2.18]
Attribution: © 2012 InterAtlas z[14:21], lat[45.55:45.95], lon[4.57:5.33]
Attribution: © 2012 InterAtlas z[14:21], lat[43.18:43.77], lon[4.92:5.82]
Attribution: © 2012 Eurosense z[14:21], lat[51.0:53.65], lon[3.0:7.67]
Attribution: © 2012 Eurosense z[14:21], lat[50.58:51.0], lon[5.42:5.47]
Attribution: © 2012 IGP z[14:21], lat[36.88:42.27], lon[-9.6:-6.0]
Attribution: © 2012 IGN z[14:21], lat[42.0:51.25], lon[-5.0:8.5]
Attribution: © 2012 IGN z[14:21], lat[41.25:43.1], lon[8.3:9.65]
Attribution: © 2012 IGN z[14:21], lat[17.85:18.15], lon[-63.17:-62.77]
Attribution: © 2012 IGN z[14:21], lat[15.75:16.55], lon[-61.9:-60.9]
Attribution: © 2012 IGN z[14:21], lat[14.35:14.95], lon[-61.25:-60.75]
Attribution: © 2012 IGN z[14:21], lat[2.25:6.0], lon[-54.65:-51.4]
Attribution: © 2012 IGN z[14:21], lat[-21.5:-20.75], lon[55.0:56.0]
Attribution: © 2012 IGN z[14:21], lat[46.7:47.2], lon[-56.5:-56.1]
Attribution: © Province of British Columbia z[14:18], lat[48.99:60.0], lon[-139.05:-114.05]
Attribution: © 2012 Blom z[14:21], lat[36.1:51.04], lon[-9.51:11.67]
Attribution: © 2012 Blom z[14:21], lat[55.69:61.17], lon[9.8:13.23]
Attribution: © 2012 Blom z[14:21], lat[62.2:62.24], lon[25.82:25.89]
Attribution: © 2012 Aerials Express z[14:21], lat[34.63:35.52], lon[-90.41:-89.48]
Attribution: Image courtesy of LAR-IAC z[14:21], lat[33.27:34.9], lon[-119.02:-117.59]
Attribution: Image courtesy of ImagePatch.com z[14:21], lat[25.74:36.63], lon[-106.76:-93.97]
Attribution: Image courtesy of ImagePatch.com z[14:21], lat[34.36:35.44], lon[-93.14:-92.0]
Attribution: State of Michigan z[14:21], lat[41.68:45.89], lon[-86.87:-82.91]
Attribution: Earthstar Geographics  SIO z[1:8], lat[-90.0:90.0], lon[-180.0:180.0]
Attribution: Earthstar Geographics  SIO z[10:13], lat[70.61:71.52], lon[78.75:81.56]
Attribution: Earthstar Geographics  SIO z[10:13], lat[68.66:69.66], lon[135.0:137.81]
Attribution: Earthstar Geographics  SIO z[10:13], lat[67.61:68.66], lon[171.56:174.38]
Attribution: Earthstar Geographics  SIO z[10:13], lat[67.61:68.66], lon[70.31:73.13]
Attribution: Earthstar Geographics  SIO z[10:13], lat[66.51:67.61], lon[-180.0:-177.19]
Attribution: Earthstar Geographics  SIO z[10:13], lat[65.37:66.51], lon[36.56:39.38]
Attribution: Earthstar Geographics  SIO z[10:13], lat[64.17:65.37], lon[-171.56:-168.75]
Attribution: Earthstar Geographics  SIO z[10:13], lat[54.16:55.78], lon[-70.31:-67.5]
Attribution: Earthstar Geographics  SIO z[10:13], lat[52.48:65.37], lon[-180.0:-163.13]
Attribution: Earthstar Geographics  SIO z[10:13], lat[47.04:58.81], lon[140.63:154.69]
Attribution: Earthstar Geographics  SIO z[10:13], lat[36.6:40.98], lon[132.19:137.81]
Attribution: Earthstar Geographics  SIO z[10:13], lat[31.95:34.31], lon[64.69:67.5]
Attribution: Earthstar Geographics  SIO z[10:13], lat[31.95:34.31], lon[28.13:33.75]
Attribution: Earthstar Geographics  SIO z[10:13], lat[31.95:38.82], lon[16.88:19.69]
Attribution: Earthstar Geographics  SIO z[10:13], lat[29.54:31.95], lon[61.88:64.69]
Attribution: Earthstar Geographics  SIO z[10:13], lat[27.06:31.95], lon[123.75:129.38]
Attribution: Earthstar Geographics  SIO z[10:13], lat[24.53:27.06], lon[2.81:5.63]
Attribution: Earthstar Geographics  SIO z[10:13], lat[19.31:27.06], lon[16.88:22.5]
Attribution: Earthstar Geographics  SIO z[10:13], lat[19.31:27.06], lon[-8.44:-2.81]
Attribution: Earthstar Geographics  SIO z[10:13], lat[19.31:29.54], lon[-95.63:-84.38]
Attribution: Earthstar Geographics  SIO z[10:13], lat[16.64:19.31], lon[-87.19:-81.56]
Attribution: Earthstar Geographics  SIO z[10:13], lat[11.18:16.64], lon[-81.56:-61.88]
Attribution: Earthstar Geographics  SIO z[10:13], lat[5.62:21.94], lon[106.88:118.13]
Attribution: Earthstar Geographics  SIO z[10:13], lat[-11.18:-8.41], lon[143.44:146.25]
Attribution: Earthstar Geographics  SIO z[10:13], lat[-13.92:-11.18], lon[177.19:180.0]
Attribution: Earthstar Geographics  SIO z[10:13], lat[-13.92:-11.18], lon[137.81:140.63]
Attribution: Earthstar Geographics  SIO z[10:13], lat[-85.05:85.05], lon[-180.0:180.0]
Attribution: Earthstar Geographics  SIO z[10:17], lat[76.18:77.47], lon[67.5:70.31]
Attribution: Earthstar Geographics  SIO z[10:17], lat[74.02:75.5], lon[59.06:61.88]
Attribution: Earthstar Geographics  SIO z[10:17], lat[71.52:73.23], lon[118.13:120.94]
Attribution: Earthstar Geographics  SIO z[10:17], lat[70.61:71.52], lon[154.69:157.5]
Attribution: Earthstar Geographics  SIO z[10:17], lat[70.61:72.4], lon[146.25:151.88]
Attribution: Earthstar Geographics  SIO z[10:17], lat[70.61:74.78], lon[50.63:56.25]
Attribution: Earthstar Geographics  SIO z[10:17], lat[70.61:71.52], lon[-11.25:-5.63]
Attribution: Earthstar Geographics  SIO z[10:17], lat[70.61:72.4], lon[-180.0:-177.19]
Attribution: Earthstar Geographics  SIO z[10:17], lat[67.61:69.66], lon[-180.0:-177.19]
Attribution: Earthstar Geographics  SIO z[10:17], lat[62.92:67.61], lon[-25.31:-11.25]
Attribution: Earthstar Geographics  SIO z[10:17], lat[62.92:70.61], lon[-56.25:-50.63]
Attribution: Earthstar Geographics  SIO z[10:17], lat[62.92:64.17], lon[-70.31:-67.5]
Attribution: Earthstar Geographics  SIO z[10:17], lat[58.81:61.61], lon[-47.81:-42.19]
Attribution: Earthstar Geographics  SIO z[10:17], lat[52.48:54.16], lon[171.56:174.38]
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Attribution: © 2012 DigitalGlobe z[10:17], lat[47.04:48.92], lon[67.5:70.31]
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Raising the timeout just fights the symptoms. What happens if Microsoft add tomorrow another 1000 or 10000 attributions? They can only define "rectangular" boundaries.

But why not being pragmatic: Why don't we cache the attribution file like we did with the tiles?

The code could look like this (pseudo code):

// first try to read cached data (new)
if (cachedfile.exists()) {
  // we have valid attribution data, so we must wait for parsing finished - no matter how long it takes
  set timeout to infinite;
  try {
    load cachedfile;
  } catch Exception {
    set timeout to default
  }
} else {
  // we have initially an empty attribution list (this is the actual behaviour)
  set timeout to default
}

// try to get attribution data from bing.com (as today);
if (successfully downloaded and parsed) {
  replace the initial list with the loaded data (as today);
  store new (and valid) attribution data in cache (new);
}

What are the differences compared with actual behaviour?

  • If no attribution data is cached (first time ever using Bing imagery), nothing will change.
  • If we have cached attribution data, this data is used for the first tiles (this will also speed up showing the first tiles). Now it doesn’t matter how long it takes to download and parse the actual attribution data. When this task is finished, he just replace the list used by getAttribution().
  • Normally this will result in using old attribution data only for the first few tiles, which is not really a problem, I think.
  • If bing.com can deliver tiles, but no attribution data, we use the old attribution data for a little bit longer. But I think the attribution is normally not very volatile, so we have a good chance to use the correct attribution anyway.
  • if bing.com can't deliver tiles, it dosen't matter if we have attribution data.

comment:23 by skyper, 9 years ago

Ticket #11078 has been marked as a duplicate of this ticket.

comment:24 by Klumbumbus, 9 years ago

Any plans to fix this? If I understand correct, simply change the timeout number would not be the best slution, but would help a lot and has no real disadvantage. Why not just do this? I always first zoom out before I add the bing layer and then zoom in again. That's not fun :)

comment:25 by skyper, 9 years ago

I remember that in the past I had even more problems but a proxy did help. E.g. this is often a question of routing and bandwidth.

Increasing the timeout will force everyone to wait longer. Think caching the attributes for some time and have a background check would be a solution.

comment:26 by Klumbumbus, 9 years ago

I thought the timeout is olny the maximum time. If the attribution is loaded earlier, the tiles start to load already. Is this wrong?

comment:27 by simon04, 9 years ago

I thought the timeout is olny the maximum time.

Yes.

Any concerns with …?

  • jmapviewer/tilesources/BingAerialTileSource.java

     
    254254            }
    255255        }
    256256        try {
    257             return attributions.get(1000, TimeUnit.MILLISECONDS);
     257            return attributions.get(1, TimeUnit.MINUTES);
    258258        } catch (TimeoutException ex) {
    259259            System.err.println("Bing: attribution data is not yet loaded.");
    260260        } catch (ExecutionException ex) {

comment:28 by simon04, 9 years ago

Cc: wiktorn added

This should be fixed with r8714, right?

in reply to:  28 comment:29 by wiktorn, 9 years ago

Replying to simon04:

This should be fixed with r8714, right?

Not exactly this case. I've shrotened the timeout that you've mentioned above, but the timeout on attribution load is more connected with socket.timeout.read. In r8714 it is only repaint after attribution load.

But my gut feeling is just not to fix this case. There should be nothing wrong in trying to load the tiles before attribution is loaded.

comment:30 by wiktorn, 8 years ago

Resolution: → wontfix
Status: new → closed

I'm closing this, as with r8714 loading of the tiles before attribution is loaded doesn't affect JOSM performance.

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