001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.plugins.streetside.io.download;
003
004import java.io.BufferedInputStream;
005import java.io.IOException;
006import java.net.URL;
007import java.net.URLConnection;
008import java.util.ArrayList;
009import java.util.EnumSet;
010import java.util.List;
011import java.util.function.Function;
012
013import org.openstreetmap.josm.data.Bounds;
014import org.openstreetmap.josm.plugins.streetside.StreetsideAbstractImage;
015import org.openstreetmap.josm.plugins.streetside.StreetsideData;
016import org.openstreetmap.josm.plugins.streetside.StreetsideImage;
017import org.openstreetmap.josm.plugins.streetside.StreetsideSequence;
018import org.openstreetmap.josm.plugins.streetside.cubemap.CubemapUtils;
019import org.openstreetmap.josm.plugins.streetside.utils.StreetsideProperties;
020import org.openstreetmap.josm.plugins.streetside.utils.StreetsideSequenceIdGenerator;
021import org.openstreetmap.josm.plugins.streetside.utils.StreetsideURL.APIv3;
022import org.openstreetmap.josm.tools.I18n;
023import org.openstreetmap.josm.tools.Logging;
024
025import com.fasterxml.jackson.core.JsonParseException;
026import com.fasterxml.jackson.core.JsonParser;
027import com.fasterxml.jackson.core.JsonToken;
028import com.fasterxml.jackson.databind.DeserializationFeature;
029import com.fasterxml.jackson.databind.JsonMappingException;
030import com.fasterxml.jackson.databind.ObjectMapper;
031import com.fasterxml.jackson.databind.node.ObjectNode;
032
033public final class SequenceDownloadRunnable extends BoundsDownloadRunnable {
034
035        private final StreetsideData data;
036
037  private static final Function<Bounds, URL> URL_GEN = APIv3::searchStreetsideSequences;
038
039  public SequenceDownloadRunnable(final StreetsideData data, final Bounds bounds) {
040    super(bounds);
041    this.data = data;
042  }
043
044  @Override
045  public void run(final URLConnection con) throws IOException {
046    if (Thread.interrupted()) {
047      return;
048    }
049
050    StreetsideSequence seq = new StreetsideSequence(StreetsideSequenceIdGenerator.generateId());
051
052    // TODO: how can LatLon and heading / camera angles (he attribute) be set for a sequence?
053    // and does it make sense? @rrh
054
055    List<StreetsideImage> bubbleImages = new ArrayList<>();
056
057    final long startTime = System.currentTimeMillis();
058
059    ObjectMapper mapper = new ObjectMapper();
060    // Creation of Jackson Object Mapper necessary for Silverlight 2.0 JSON Syntax parsing:
061    // (no double quotes in JSON on attribute names)
062    mapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
063
064    // Allow unrecognized properties - won't break with addition of new attributes
065    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
066
067    try {
068
069    JsonParser parser = mapper.getFactory().createParser(new BufferedInputStream(con.getInputStream()));
070    if(parser.nextToken() != JsonToken.START_ARRAY) {
071      parser.close();
072      throw new IllegalStateException("Expected an array");
073    }
074
075
076    StreetsideImage previous = null;
077
078    while (parser.nextToken() == JsonToken.START_OBJECT) {
079        // read everything from this START_OBJECT to the matching END_OBJECT
080        // and return it as a tree model ObjectNode
081        ObjectNode node = mapper.readTree(parser);
082        // Discard the first sequence ('enabled') - it does not contain bubble data
083        if (node.get("id") != null && node.get("la") != null && node.get("lo") != null) {
084          StreetsideImage image = new StreetsideImage(CubemapUtils.convertDecimal2Quaternary(node.path("id").asLong()), node.path("la").asDouble(), node.get("lo").asDouble());
085          if(previous!=null) {
086                  // Analyze sequence behaviour
087                  //previous.setNext(image.)
088          }
089          image.setAd(node.path("ad").asInt());
090          image.setAl(node.path("al").asDouble());
091          image.setBl(node.path("bl").asText());
092          image.setCd(node.path("cd").asLong());
093          image.setHe(node.path("he").asDouble());
094          image.setMl(node.path("ml").asInt());
095          image.setNbn(node.findValuesAsText("nbn"));
096          image.setNe(node.path("ne").asLong());
097          image.setPbn(node.findValuesAsText("pbn"));
098          image.setPi(node.path("pi").asDouble());
099          image.setPr(node.path("pr").asLong());
100          // TODO: inner class @rrh
101          // image.setRn(node.path("rn").asText());
102          image.setRo(node.path("ro").asDouble());
103
104          // Add list of cubemap tile images to images
105          List<StreetsideImage> tiles = new ArrayList<StreetsideImage>();
106
107        // TODO: set previous and next @rrh
108
109                                        EnumSet.allOf(CubemapUtils.CubemapFaces.class).forEach(face -> {
110
111                                                        for (int i = 0; i < 4; i++) {
112                                                                // Initialize four-tiled cubemap faces (four images per cube side with 18-length
113                                                                // Quadkey)
114                                                                //if (StreetsideProperties.CUBEFACE_SIZE.get().intValue() == 4) {
115                                                                if (!StreetsideProperties.SHOW_HIGH_RES_STREETSIDE_IMAGERY.get()) {
116                                                                        StreetsideImage tile = new StreetsideImage(
117                                                                                        String.valueOf(image.getId() + Integer.valueOf(i)));
118                                                                        tiles.add(tile);
119                                                                }
120                                                                // Initialize four-tiled cubemap faces (four images per cub eside with 20-length
121                                                                // Quadkey)
122                                                                //if (StreetsideProperties.CUBEFACE_SIZE.get().intValue() == 16) {
123                                                                if (StreetsideProperties.SHOW_HIGH_RES_STREETSIDE_IMAGERY.get()) {
124                                                                        for (int j = 0; j < 4; j++) {
125                                                                                StreetsideImage tile = new StreetsideImage(String.valueOf(image.getId()
126                                                                                                + face.getValue() + CubemapUtils.rowCol2StreetsideCellAddressMap
127                                                                                                                .get(String.valueOf(Integer.valueOf(i).toString() + Integer.valueOf(j).toString()))));
128                                                                                tiles.add(tile);
129                                                                        }
130                                                                }
131                                                        }
132                                        });
133
134          bubbleImages.add(image);
135          Logging.info("Added image with id <" + image.getId() + ">");
136          // TODO: double check whether this pre-caches successfullly @rrh
137          //StreetsideData.downloadSurroundingCubemaps(image);
138
139        }
140      }
141
142    parser.close();
143
144    //StreetsideImage[] images;
145
146      // First load all of the 'bubbles' from the request as Streetside Images
147      /*List<StreetsideImage> images = mapper
148        .readValue(new BufferedInputStream(con.getInputStream()), new TypeReference<List<StreetsideImage>>() {});
149      */
150
151
152      //images = mapper.readValue(new BufferedInputStream(con.getInputStream()), StreetsideImage[].class);
153
154      /*for (StreetsideImage image : bubbleImages) {
155        image = JsonStreetsideSequencesDecoder.decodeBubbleData(image);
156        if(image != null) bubbleImages.add(image);
157      }*/
158
159    } catch (JsonParseException e) {
160      e.printStackTrace();
161    } catch (JsonMappingException e) {
162      e.printStackTrace();
163    } catch (IOException e) {
164      e.printStackTrace();
165    }
166
167    /** Top Level Bubble Metadata in Streetside are bubble (aka images) not Sequences
168     *  so a sequence needs to be created and have images added to it. If the distribution
169     *  of Streetside images is non-sequential, the Mapillary "Walking Action" may behave
170     *  unpredictably.
171     **/
172    seq.add(bubbleImages);
173
174    if (StreetsideProperties.CUT_OFF_SEQUENCES_AT_BOUNDS.get()) {
175      for (StreetsideAbstractImage img : seq.getImages()) {
176        if (bounds.contains(img.getLatLon())) {
177          data.add(img);
178        } else {
179          seq.remove(img);
180        }
181      }
182    } else {
183      boolean sequenceCrossesThroughBounds = false;
184      for (int i = 0; i < seq.getImages().size() && !sequenceCrossesThroughBounds; i++) {
185        sequenceCrossesThroughBounds = bounds.contains(seq.getImages().get(i).getLatLon());
186      }
187      if (sequenceCrossesThroughBounds) {
188        data.addAll(seq.getImages(), true);
189      }
190    }
191
192    final long endTime = System.currentTimeMillis();
193    Logging.debug(I18n.tr("Sucessfully loaded {0} Microsoft Streetside images in {0} ",seq.getImages().size(),endTime-startTime%60));
194  }
195
196  @Override
197  protected Function<Bounds, URL> getUrlGenerator() {
198    return URL_GEN;
199  }
200}