SequenceDownloadRunnable.java
// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.plugins.streetside.io.download;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.EnumSet;
import java.util.List;
import java.util.function.Function;
import org.openstreetmap.josm.data.Bounds;
import org.openstreetmap.josm.plugins.streetside.StreetsideAbstractImage;
import org.openstreetmap.josm.plugins.streetside.StreetsideData;
import org.openstreetmap.josm.plugins.streetside.StreetsideImage;
import org.openstreetmap.josm.plugins.streetside.StreetsideSequence;
import org.openstreetmap.josm.plugins.streetside.cubemap.CubemapUtils;
import org.openstreetmap.josm.plugins.streetside.utils.StreetsideProperties;
import org.openstreetmap.josm.plugins.streetside.utils.StreetsideSequenceIdGenerator;
import org.openstreetmap.josm.plugins.streetside.utils.StreetsideURL.APIv3;
import org.openstreetmap.josm.tools.I18n;
import org.openstreetmap.josm.tools.Logging;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
public final class SequenceDownloadRunnable extends BoundsDownloadRunnable {
private final StreetsideData data;
private static final Function<Bounds, URL> URL_GEN = APIv3::searchStreetsideSequences;
public SequenceDownloadRunnable(final StreetsideData data, final Bounds bounds) {
super(bounds);
this.data = data;
}
@Override
public void run(final URLConnection con) throws IOException {
if (Thread.interrupted()) {
return;
}
StreetsideSequence seq = new StreetsideSequence(StreetsideSequenceIdGenerator.generateId());
// TODO: how can LatLon and heading / camera angles (he attribute) be set for a sequence?
// and does it make sense? @rrh
List<StreetsideImage> bubbleImages = new ArrayList<>();
final long startTime = System.currentTimeMillis();
ObjectMapper mapper = new ObjectMapper();
// Creation of Jackson Object Mapper necessary for Silverlight 2.0 JSON Syntax parsing:
// (no double quotes in JSON on attribute names)
mapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
// Allow unrecognized properties - won't break with addition of new attributes
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
try {
JsonParser parser = mapper.getFactory().createParser(new BufferedInputStream(con.getInputStream()));
if(parser.nextToken() != JsonToken.START_ARRAY) {
parser.close();
throw new IllegalStateException("Expected an array");
}
StreetsideImage previous = null;
while (parser.nextToken() == JsonToken.START_OBJECT) {
// read everything from this START_OBJECT to the matching END_OBJECT
// and return it as a tree model ObjectNode
ObjectNode node = mapper.readTree(parser);
// Discard the first sequence ('enabled') - it does not contain bubble data
if (node.get("id") != null && node.get("la") != null && node.get("lo") != null) {
StreetsideImage image = new StreetsideImage(CubemapUtils.convertDecimal2Quaternary(node.path("id").asLong()), node.path("la").asDouble(), node.get("lo").asDouble());
if(previous!=null) {
// Analyze sequence behaviour
//previous.setNext(image.)
}
image.setAd(node.path("ad").asInt());
image.setAl(node.path("al").asDouble());
image.setBl(node.path("bl").asText());
image.setCd(node.path("cd").asLong());
image.setHe(node.path("he").asDouble());
image.setMl(node.path("ml").asInt());
image.setNbn(node.findValuesAsText("nbn"));
image.setNe(node.path("ne").asLong());
image.setPbn(node.findValuesAsText("pbn"));
image.setPi(node.path("pi").asDouble());
image.setPr(node.path("pr").asLong());
// TODO: inner class @rrh
// image.setRn(node.path("rn").asText());
image.setRo(node.path("ro").asDouble());
// Add list of cubemap tile images to images
List<StreetsideImage> tiles = new ArrayList<StreetsideImage>();
// TODO: set previous and next @rrh
EnumSet.allOf(CubemapUtils.CubemapFaces.class).forEach(face -> {
for (int i = 0; i < 4; i++) {
// Initialize four-tiled cubemap faces (four images per cube side with 18-length
// Quadkey)
//if (StreetsideProperties.CUBEFACE_SIZE.get().intValue() == 4) {
if (!StreetsideProperties.SHOW_HIGH_RES_STREETSIDE_IMAGERY.get()) {
StreetsideImage tile = new StreetsideImage(
String.valueOf(image.getId() + Integer.valueOf(i)));
tiles.add(tile);
}
// Initialize four-tiled cubemap faces (four images per cub eside with 20-length
// Quadkey)
//if (StreetsideProperties.CUBEFACE_SIZE.get().intValue() == 16) {
if (StreetsideProperties.SHOW_HIGH_RES_STREETSIDE_IMAGERY.get()) {
for (int j = 0; j < 4; j++) {
StreetsideImage tile = new StreetsideImage(String.valueOf(image.getId()
+ face.getValue() + CubemapUtils.rowCol2StreetsideCellAddressMap
.get(String.valueOf(Integer.valueOf(i).toString() + Integer.valueOf(j).toString()))));
tiles.add(tile);
}
}
}
});
bubbleImages.add(image);
Logging.info("Added image with id <" + image.getId() + ">");
// TODO: double check whether this pre-caches successfullly @rrh
//StreetsideData.downloadSurroundingCubemaps(image);
}
}
parser.close();
//StreetsideImage[] images;
// First load all of the 'bubbles' from the request as Streetside Images
/*List<StreetsideImage> images = mapper
.readValue(new BufferedInputStream(con.getInputStream()), new TypeReference<List<StreetsideImage>>() {});
*/
//images = mapper.readValue(new BufferedInputStream(con.getInputStream()), StreetsideImage[].class);
/*for (StreetsideImage image : bubbleImages) {
image = JsonStreetsideSequencesDecoder.decodeBubbleData(image);
if(image != null) bubbleImages.add(image);
}*/
} catch (JsonParseException e) {
e.printStackTrace();
} catch (JsonMappingException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
/** Top Level Bubble Metadata in Streetside are bubble (aka images) not Sequences
* so a sequence needs to be created and have images added to it. If the distribution
* of Streetside images is non-sequential, the Mapillary "Walking Action" may behave
* unpredictably.
**/
seq.add(bubbleImages);
if (StreetsideProperties.CUT_OFF_SEQUENCES_AT_BOUNDS.get()) {
for (StreetsideAbstractImage img : seq.getImages()) {
if (bounds.contains(img.getLatLon())) {
data.add(img);
} else {
seq.remove(img);
}
}
} else {
boolean sequenceCrossesThroughBounds = false;
for (int i = 0; i < seq.getImages().size() && !sequenceCrossesThroughBounds; i++) {
sequenceCrossesThroughBounds = bounds.contains(seq.getImages().get(i).getLatLon());
}
if (sequenceCrossesThroughBounds) {
data.addAll(seq.getImages(), true);
}
}
final long endTime = System.currentTimeMillis();
Logging.info(I18n.tr("Sucessfully loaded {0} Microsoft Streetside images in {0} ",seq.getImages().size(),endTime-startTime%60));
}
@Override
protected Function<Bounds, URL> getUrlGenerator() {
return URL_GEN;
}
}