/**
* Returns the list of elevation values for the specified typeInfo based on the dimension
* representation: all values for {@link DimensionPresentation#LIST}, otherwise min and max
*
* @param typeInfo
* @return
* @throws IOException
*/
public TreeSet<Double> getFeatureTypeElevations(FeatureTypeInfo typeInfo) throws IOException {
// grab the time metadata
DimensionInfo elevation =
typeInfo.getMetadata().get(ResourceInfo.ELEVATION, DimensionInfo.class);
if (elevation == null || !elevation.isEnabled()) {
throw new ServiceException(
"Layer " + typeInfo.getPrefixedName() + " does not have elevation support enabled");
}
FeatureCollection collection = getDimensionCollection(typeInfo, elevation);
TreeSet<Double> result = new TreeSet<Double>();
if (elevation.getPresentation() == DimensionPresentation.LIST
|| (elevation.getPresentation() == DimensionPresentation.DISCRETE_INTERVAL
&& elevation.getResolution() == null)) {
final UniqueVisitor visitor = new UniqueVisitor(elevation.getAttribute());
collection.accepts(visitor, null);
@SuppressWarnings("unchecked")
Set<Object> values = visitor.getUnique();
if (values.size() <= 0) {
result = null;
} else {
for (Object value : values) {
result.add(((Number) value).doubleValue());
}
}
} else {
final MinVisitor min = new MinVisitor(elevation.getAttribute());
collection.accepts(min, null);
// check calcresult first to avoid potential IllegalStateException if no features are in
// collection
CalcResult calcResult = min.getResult();
if (calcResult != CalcResult.NULL_RESULT) {
result.add(((Number) min.getMin()).doubleValue());
final MaxVisitor max = new MaxVisitor(elevation.getAttribute());
collection.accepts(max, null);
result.add(((Number) max.getMax()).doubleValue());
}
}
return result;
}
/**
* Returns the list of time values for the specified typeInfo based on the dimension
* representation: all values for {@link DimensionPresentation#LIST}, otherwise min and max
*
* @param typeInfo
* @return
* @throws IOException
*/
public TreeSet<Date> getFeatureTypeTimes(FeatureTypeInfo typeInfo) throws IOException {
// grab the time metadata
DimensionInfo time = typeInfo.getMetadata().get(ResourceInfo.TIME, DimensionInfo.class);
if (time == null || !time.isEnabled()) {
throw new ServiceException(
"Layer " + typeInfo.getPrefixedName() + " does not have time support enabled");
}
FeatureCollection collection = getDimensionCollection(typeInfo, time);
TreeSet<Date> result = new TreeSet<Date>();
if (time.getPresentation() == DimensionPresentation.LIST) {
final UniqueVisitor visitor = new UniqueVisitor(time.getAttribute());
collection.accepts(visitor, null);
@SuppressWarnings("unchecked")
Set<Date> values = visitor.getUnique();
if (values.size() <= 0) {
result = null;
} else {
// we might get null values out of the visitor, strip them
values.remove(null);
result.addAll(values);
}
} else {
final MinVisitor min = new MinVisitor(time.getAttribute());
collection.accepts(min, null);
CalcResult minResult = min.getResult();
// check calcresult first to avoid potential IllegalStateException if no features are in
// collection
if (minResult != CalcResult.NULL_RESULT) {
result.add((Date) min.getMin());
final MaxVisitor max = new MaxVisitor(time.getAttribute());
collection.accepts(max, null);
result.add((Date) max.getMax());
}
}
return result;
}
/**
* Set the timeDomain metadata in case the dimensionsHelper instance has a timeDimension
*
* @param helper
* @throws IOException
*/
private void handleTimeMetadata(WCSDimensionsHelper helper) throws IOException {
Utilities.ensureNonNull("helper", helper);
final DimensionInfo timeDimension = helper.getTimeDimension();
if (timeDimension != null) {
start(initStartMetadataTag(TAG.TIME_DOMAIN, null, timeDimension, helper));
final DimensionPresentation presentation = timeDimension.getPresentation();
final String id = helper.getCoverageId();
switch (presentation) {
case CONTINUOUS_INTERVAL:
encodeTimePeriod(helper.getBeginTime(), helper.getEndTime(), id + "_tp_0", null, null);
break;
case DISCRETE_INTERVAL:
encodeTimePeriod(
helper.getBeginTime(),
helper.getEndTime(),
id + "_tp_0",
helper.getTimeResolutionUnit(),
helper.getTimeResolutionValue());
break;
default:
// TODO: check if we are in the list of instants case, or in the list of periods case
// list case
final TreeSet<Object> domain = helper.getTimeDomain();
int i = 0;
for (Object item : domain) {
// gml:id is mandatory for time instant...
if (item instanceof Date) {
encodeDate((Date) item, helper, id + "_td_" + i);
} else if (item instanceof DateRange) {
encodeDateRange((DateRange) item, helper, id + "_td_" + i);
}
i++;
}
break;
}
end(TAG.TIME_DOMAIN);
}
}
/**
* Set the elevationDomain metadata in case the dimensionsHelper instance has an
* elevationDimension
*
* @param helper
* @throws IOException
*/
private void handleElevationMetadata(WCSDimensionsHelper helper) throws IOException {
// Null check has been performed in advance
final DimensionInfo elevationDimension = helper.getElevationDimension();
if (elevationDimension != null) {
start(initStartMetadataTag(TAG.ELEVATION_DOMAIN, null, elevationDimension, helper));
final DimensionPresentation presentation = elevationDimension.getPresentation();
switch (presentation) {
// Where _er_ means elevation range
case CONTINUOUS_INTERVAL:
encodeInterval(helper.getBeginElevation(), helper.getEndElevation(), null, null);
break;
case DISCRETE_INTERVAL:
encodeInterval(
helper.getBeginElevation(),
helper.getEndElevation(),
helper.getElevationResolutionUnit(),
helper.getElevationResolutionValue());
break;
default:
// TODO: check if we are in the list of instants case, or in the list of periods case
// list case
final TreeSet<Object> domain = helper.getElevationDomain();
for (Object item : domain) {
if (item instanceof Number) {
element(TAG.SINGLE_VALUE, item.toString());
} else if (item instanceof NumberRange) {
NumberRange range = (NumberRange) item;
encodeInterval(
range.getMinValue().toString(), range.getMaxValue().toString(), null, null);
}
}
break;
}
end(TAG.ELEVATION_DOMAIN);
}
}