Java Code Examples for android.util.JsonReader#beginArray()

private void populateComments() {
    String url=String.format(Locale.US,COMMENT_API_URL,id);
    try {
        Response response=Global.getClient().newCall(new Request.Builder().url(url).build()).execute();
        ResponseBody body=response.body();
        if(body==null){response.close(); return;}
        JsonReader reader=new JsonReader(new InputStreamReader(body.byteStream()));
        reader.beginArray();
        while(reader.hasNext())
            comments.add(new Comment(reader));
        reader.close();
        response.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}
 

@Override
public void setCoordinatesFromJSONStream(JsonReader reader, int crs) throws IOException {
    setCRS(crs);
    reader.beginArray();
    while (reader.hasNext()){
        GeoPolygon polygon = new GeoPolygon();
        polygon.setCoordinatesFromJSONStream(reader, crs);
        mGeometries.add(polygon);
    }
    reader.endArray();
}
 

List<DescriptionTerm> readDescriptionTermsArray(JsonReader reader) throws IOException {
    List<DescriptionTerm> terms = new ArrayList<>();

    reader.beginArray();
    while (reader.hasNext()) {
        int offset = -1;
        String value = null;

        reader.beginObject();
        while (reader.hasNext()) {
            switch (reader.nextName()) {
                case "offset":
                    offset = reader.nextInt();
                    break;
                case "value":
                    value = reader.nextString();
                    break;
                default:
                    reader.skipValue();
                    break;
            }
        }
        reader.endObject();
        terms.add(new DescriptionTerm(offset, value));
    }
    reader.endArray();
    return terms;
}
 

private static void extractSite(final JsonReader reader, final UrlListCallback callback) throws IOException {
    reader.beginObject();

    final String siteOwner = reader.nextName();
    {
        reader.beginObject();

        while (reader.hasNext()) {
            // We can get the site name using reader.nextName() here:
            reader.skipValue();

            JsonToken nextToken = reader.peek();

            if (nextToken.name().equals("STRING")) {
                // Sometimes there's a "dnt" entry, with unspecified purpose.
                reader.skipValue();
            } else {
                reader.beginArray();

                while (reader.hasNext()) {
                    final String blockURL = reader.nextString();
                    callback.put(blockURL, siteOwner);
                }

                reader.endArray();
            }
        }

        reader.endObject();
    }

    reader.endObject();
}
 

List<MatchedSubstring> readMatchedSubstringsArray(JsonReader reader) throws IOException {
    List<MatchedSubstring> matchedSubstrings = new ArrayList<>();

    reader.beginArray();
    while (reader.hasNext()) {
        int length = -1;
        int offset = -1;

        reader.beginObject();
        while (reader.hasNext()) {
            switch (reader.nextName()) {
                case "length":
                    length = reader.nextInt();
                    break;
                case "offset":
                    offset = reader.nextInt();
                    break;
                default:
                    reader.skipValue();
                    break;
            }
        }
        reader.endObject();
        matchedSubstrings.add(new MatchedSubstring(length, offset));
    }
    reader.endArray();
    return matchedSubstrings;
}
 

@Override
public void setCoordinatesFromJSONStream(JsonReader reader, int crs) throws IOException {
    setCRS(crs);
    reader.beginArray();
    while (reader.hasNext()){
        GeoLineString line = new GeoLineString();
        line.setCoordinatesFromJSONStream(reader, crs);
        mGeometries.add(line);
    }
    reader.endArray();
}
 

private static List<ZCashTransactionDetails_taddr> readTxArray(JsonReader reader) throws IOException {
  List<ZCashTransactionDetails_taddr> txs = new LinkedList<>();
  reader.beginArray();
  while (reader.hasNext()) {
    txs.add(readTx(reader));
  }

  reader.endArray();
  return txs;
}
 

private static Vector<ZCashTransactionOutput> readTxInputs(JsonReader reader) throws IOException {
  Vector<ZCashTransactionOutput> vin = new Vector<>();
  reader.beginArray();
  while (reader.hasNext()) {
    vin.add(readTxSingleInput(reader));
  }

  reader.endArray();
  return vin;
}
 

private static Vector<ZCashTransactionOutput> readTxOutputs(JsonReader reader, String txid) throws IOException {
  Vector<ZCashTransactionOutput> vout = new Vector<>();
  //reader.nextName();
  reader.beginArray();
  while (reader.hasNext()) {
    ZCashTransactionOutput out = readTxSingleOutput(reader);
    out.txid = txid;
    vout.add(out);
  }

  reader.endArray();
  return vout;
}
 

List<AlternativePlaceId> readAltIdsArray(JsonReader reader) throws IOException {
    List<AlternativePlaceId> altIds = new ArrayList<>();

    reader.beginArray();
    while (reader.hasNext()) {
        String placeId = null;
        PlaceScope scope = null;

        reader.beginObject();
        while (reader.hasNext()) {
            switch (reader.nextName()) {
                case "place_id":
                    placeId = reader.nextString();
                    break;
                case "scope":
                    scope = readScope(reader);
                    break;
                default:
                    reader.skipValue();
                    break;
            }
        }
        reader.endObject();
        altIds.add(new AlternativePlaceId(placeId, scope));
    }
    reader.endArray();
    return altIds;
}
 

private static void extractSite(final JsonReader reader, final UrlListCallback callback) throws IOException {
    reader.beginObject();

    final String siteOwner = reader.nextName();
    {
        reader.beginObject();

        while (reader.hasNext()) {
            // We can get the site name using reader.nextName() here:
            reader.skipValue();

            JsonToken nextToken = reader.peek();

            if (nextToken.name().equals("STRING")) {
                // Sometimes there's a "dnt" entry, with unspecified purpose.
                reader.skipValue();
            } else {
                reader.beginArray();

                while (reader.hasNext()) {
                    final String blockURL = reader.nextString();
                    callback.put(blockURL, siteOwner);
                }

                reader.endArray();
            }
        }

        reader.endObject();
    }

    reader.endObject();
}
 

protected void readFeatures(JsonReader reader, List<Feature> features) throws IOException, IllegalStateException, NumberFormatException, OutOfMemoryError {
    reader.beginArray();
    while (reader.hasNext()) {
        final Feature feature = NGWUtil.readNGWFeature(reader, getFields(), mCRS);
        if (feature.getGeometry() == null || !feature.getGeometry().isValid())
            continue;
        features.add(feature);
    }
    reader.endArray();
}
 

List<String> readTypesArray(JsonReader reader) throws IOException {
    List<String> types = new ArrayList<>();

    reader.beginArray();
    while (reader.hasNext()) {
        types.add(reader.nextString());
    }
    reader.endArray();
    return types;
}
 

@Override
public void setCoordinatesFromJSONStream(JsonReader reader, int crs) throws IOException {
    setCRS(crs);
    reader.beginArray();
    while (reader.hasNext()){
        GeoPoint pt = new GeoPoint();
        pt.setCoordinatesFromJSONStream(reader, crs);
        mGeometries.add(pt);
    }
    reader.endArray();
}
 

public static List<Object> jsonStrToList(final String s) {
    final ArrayList<Object> list = new ArrayList<>();
    final JsonReader reader = new JsonReader(new StringReader(s));
    try {
        reader.beginArray();
        while (reader.hasNext()) {
            reader.beginObject();
            while (reader.hasNext()) {
                final String name = reader.nextName();
                if (name.equals(INTEGER_CLASS_NAME)) {
                    list.add(reader.nextInt());
                } else if (name.equals(STRING_CLASS_NAME)) {
                    list.add(reader.nextString());
                } else {
                    Log.w(TAG, "Invalid name: " + name);
                    reader.skipValue();
                }
            }
            reader.endObject();
        }
        reader.endArray();
        return list;
    } catch (final IOException e) {
    } finally {
        close(reader);
    }
    return Collections.<Object>emptyList();
}
 

private void readSampleGroup(JsonReader reader, List<SampleGroup> groups) throws IOException {
  String groupName = "";
  ArrayList<Sample> samples = new ArrayList<>();

  reader.beginObject();
  while (reader.hasNext()) {
    String name = reader.nextName();
    switch (name) {
      case "name":
        groupName = reader.nextString();
        break;
      case "samples":
        reader.beginArray();
        while (reader.hasNext()) {
          samples.add(readEntry(reader, false));
        }
        reader.endArray();
        break;
      case "offline_samples":
        reader.beginArray();
        while (reader.hasNext()){
          samples.add(readOfflineEntry(reader));
        }
        reader.endArray();
        break;
      case "_comment":
        reader.nextString(); // Ignore.
        break;
      default:
        throw new ParserException("Unsupported name: " + name);
    }
  }
  reader.endObject();

  SampleGroup group = getGroup(groupName, groups);
  group.samples.addAll(samples);
}
 

private static ZCashTransactionOutput readTxSingleOutput(JsonReader reader) throws IOException {
  ZCashTransactionOutput output = new ZCashTransactionOutput();
  reader.beginObject(); //output
  while (reader.peek() != JsonToken.END_OBJECT) {
    String name = reader.nextName();
    switch (name) {
      case N:
        output.n = reader.nextLong();
        break;
      case SCRIPTPUBKEY:
        reader.beginObject();
        while (reader.peek() != JsonToken.END_OBJECT) {
          name = reader.nextName();
          switch (name) {
            case ADDRESSES:
              reader.beginArray();
              while (reader.hasNext()) {
                output.address = reader.nextString();
              }
              reader.endArray();
              break;
            case ASM:
              output.asm = reader.nextString();
              break;
            case HEX:
              output.hex = reader.nextString();
              break;
            case REQSIGS:
              output.regSigs = reader.nextLong();
              break;
            case TYPE:
              output.type = reader.nextString();
              break;
            default:
              reader.skipValue();
          }
        }
        reader.endObject();
        break;
      case VALUE:
        output.value = Double.valueOf(reader.nextDouble() * 1e8).longValue();
        break;
      case VALUEZAT:
        output.value = reader.nextLong();
        break;
      default:
        reader.skipValue();
    }
  }

  reader.endObject(); //output end
  return output;
}
 

private List<BackgroundLocation> readLocationsArray(JsonReader reader) throws IOException {
    List<BackgroundLocation> locations = new ArrayList<BackgroundLocation>();
    reader.beginArray();
    while (reader.hasNext()) {
        BackgroundLocation l = new BackgroundLocation();
        reader.beginObject();
        while (reader.hasNext()) {
            String name = reader.nextName();
            if (name.equals("id")) {
                l.setLocationId(reader.nextLong());
            } else if (name.equals("time")) {
                l.setTime(reader.nextLong());
            } else if (name.equals("latitude")) {
                l.setLatitude(reader.nextDouble());
            } else if (name.equals("longitude")) {
                l.setLongitude(reader.nextDouble());
            } else if (name.equals("accuracy")) {
                l.setAccuracy((float)reader.nextDouble());
            } else if (name.equals("speed")) {
                l.setSpeed((float)reader.nextDouble());
            } else if (name.equals("bearing")) {
                l.setBearing((float)reader.nextDouble());
            } else if (name.equals("altitude")) {
                l.setAltitude(reader.nextDouble());
            } else if (name.equals("radius")) {
                JsonToken token = reader.peek();
                if (token != JsonToken.NULL) {
                    l.setRadius((float)reader.nextDouble());
                } else {
                    reader.skipValue();
                }
            } else if (name.equals("provider")) {
                l.setProvider(reader.nextString());
            } else if (name.equals("locationProvider")) {
                l.setLocationProvider(reader.nextInt());
            } else {
                reader.skipValue();
            }
        }
        reader.endObject();
        locations.add(l);
    }
    reader.endArray();
    return locations;
}
 

public static void fillLayerFromGeoJSONStream(VectorLayer layer, InputStream in, int srs, IProgressor progressor) throws IOException, NGException {
    int streamSize = in.available();
    if(null != progressor){
        progressor.setIndeterminate(false);
        progressor.setMax(streamSize);
        progressor.setMessage(layer.getContext().getString(R.string.start_fill_layer) + " " + layer.getName());
    }

    SQLiteDatabase db = null;
    if(layer.getFields() != null && layer.getFields().isEmpty()){
        db = DatabaseContext.getDbForLayer(layer);
    }

    JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
    boolean isWGS84 = srs == GeoConstants.CRS_WGS84;
    long counter = 0;
    reader.beginObject();
    while (reader.hasNext()) {
        String name = reader.nextName();
        if(name.equals(GeoConstants.GEOJSON_TYPE_FEATURES)){
            reader.beginArray();
            while (reader.hasNext()) {
                Feature feature = readGeoJSONFeature(reader, layer, isWGS84);
                if (null != feature) {
                    if(layer.getFields() != null && !layer.getFields().isEmpty()){
                        if (feature.getGeometry() != null)
                            layer.create(feature.getGeometry().getType(), feature.getFields());

                        db = DatabaseContext.getDbForLayer(layer);
                    }

                    if(feature.getGeometry() != null) {
                        layer.createFeatureBatch(feature, db);
                        if(null != progressor){
                            if (progressor.isCanceled()) {
                                layer.save();
                                return;
                            }
                            progressor.setValue(streamSize - in.available());
                            progressor.setMessage(layer.getContext().getString(R.string.process_features) + ": " + counter++);
                        }
                    }
                }
            }
            reader.endArray();
        }
        else {
            reader.skipValue();
        }
    }
    reader.endObject();
    reader.close();

    //if(null != db)
    //    db.close(); // return pragma to init

    layer.save();
}
 

private Sample readEntry(JsonReader reader, boolean insidePlaylist) throws IOException {
  String sampleName = null;
  String uri = null;
  String extension = null;
  UUID drmUuid = null;
  String drmLicenseUrl = null;
  String[] drmKeyRequestProperties = null;
  boolean preferExtensionDecoders = false;
  ArrayList<UriSample> playlistSamples = null;

  reader.beginObject();
  while (reader.hasNext()) {
    String name = reader.nextName();
    switch (name) {
      case "name":
        sampleName = reader.nextString();
        break;
      case "uri":
        uri = reader.nextString();
        break;
      case "extension":
        extension = reader.nextString();
        break;
      case "drm_scheme":
        Assertions.checkState(!insidePlaylist, "Invalid attribute on nested item: drm_scheme");
        drmUuid = getDrmUuid(reader.nextString());
        break;
      case "drm_license_url":
        Assertions.checkState(!insidePlaylist,
            "Invalid attribute on nested item: drm_license_url");
        drmLicenseUrl = reader.nextString();
        break;
      case "drm_key_request_properties":
        Assertions.checkState(!insidePlaylist,
            "Invalid attribute on nested item: drm_key_request_properties");
        ArrayList<String> drmKeyRequestPropertiesList = new ArrayList<>();
        reader.beginObject();
        while (reader.hasNext()) {
          drmKeyRequestPropertiesList.add(reader.nextName());
          drmKeyRequestPropertiesList.add(reader.nextString());
        }
        reader.endObject();
        drmKeyRequestProperties = drmKeyRequestPropertiesList.toArray(new String[0]);
        break;
      case "prefer_extension_decoders":
        Assertions.checkState(!insidePlaylist,
            "Invalid attribute on nested item: prefer_extension_decoders");
        preferExtensionDecoders = reader.nextBoolean();
        break;
      case "playlist":
        Assertions.checkState(!insidePlaylist, "Invalid nesting of playlists");
        playlistSamples = new ArrayList<>();
        reader.beginArray();
        while (reader.hasNext()) {
          playlistSamples.add((UriSample) readEntry(reader, true));
        }
        reader.endArray();
        break;
      default:
        throw new ParserException("Unsupported attribute name: " + name);
    }
  }
  reader.endObject();

  if (playlistSamples != null) {
    UriSample[] playlistSamplesArray = playlistSamples.toArray(
        new UriSample[playlistSamples.size()]);
    return new PlaylistSample(sampleName, drmUuid, drmLicenseUrl, drmKeyRequestProperties,
        preferExtensionDecoders, playlistSamplesArray);
  } else {
    return new UriSample(sampleName, drmUuid, drmLicenseUrl, drmKeyRequestProperties,
        preferExtensionDecoders, uri, extension);
  }
}