Examples with Feature org.geojson.Feature used on opensource projects

Example 6 with Feature

use of org.geojson.Feature in project dhis2-core by dhis2.

the class GeoFeatureService method getCoordinates.

/**
 * Get the {@link GeoFeature} coordinate from {@link DimensionalItemObject}
 * <p>
 * The coordinate value is retrieved from {@link DimensionalItemObject}'s
 * geoJsonAttribute value.
 *
 * @param feature the {@link GeoFeature}
 * @param unit the {@link DimensionalItemObject} contains the coordinate
 *        values.
 * @param geoJsonAttribute The {@link Attribute} which has
 *        {@link ValueType#GEOJSON} and is assigned to
 *        {@link OrganisationUnit}.
 * @return the given {@link GeoFeature} with updated coordinate value and
 *         coordinate type.
 */
private void getCoordinates(GeoFeature feature, DimensionalItemObject unit, Attribute geoJsonAttribute) {
    if (geoJsonAttribute == null) {
        getCoordinates(feature, unit);
        return;
    }
    if (!unit.getClass().isAssignableFrom(OrganisationUnit.class)) {
        return;
    }
    OrganisationUnit organisationUnit = (OrganisationUnit) unit;
    Optional<AttributeValue> geoJsonAttributeValue = organisationUnit.getAttributeValues().stream().filter(attributeValue -> attributeValue.getAttribute().getUid().equals(geoJsonAttribute.getUid())).findFirst();
    if (!geoJsonAttributeValue.isPresent() || StringUtils.isBlank(geoJsonAttributeValue.get().getValue())) {
        getCoordinates(feature, unit);
        return;
    }
    try {
        GeoJsonObject geoJsonObject = new ObjectMapper().readValue(geoJsonAttributeValue.get().getValue(), GeoJsonObject.class);
        GeoFeature geoJsonFeature = geoJsonObject.accept(new GeoFeatureVisitor());
        if (geoJsonFeature == null) {
            return;
        }
        feature.setTy(geoJsonFeature.getTy());
        feature.setCo(geoJsonFeature.getCo());
    } catch (JsonProcessingException e) {
        log.error(String.format("Couldn't read GeoJson value from organisationUnit %s: ", organisationUnit), e);
        getCoordinates(feature, unit);
    }
}