protected SortOptions.Builder buildSortOptions(List<OrderComponent> order) {
SortOptions.Builder sortOptions = SortOptions.newBuilder();
for (OrderComponent sort : order) {
String fieldName = getEncodedFieldName(sort.getField());
SortExpression.Builder expression = SortExpression.newBuilder().setExpression(fieldName);
expression =
expression.setDirection(
sort.isAscending()
? SortExpression.SortDirection.ASCENDING
: SortExpression.SortDirection.DESCENDING);
IndexType indexType = metadata.getIndexType(sort.getField());
if (IndexType.SmallDecimal == indexType || IndexType.BigDecimal == indexType) {
expression = expression.setDefaultValueNumeric(sort.isDescending() ? IntLow : IntHigh);
} else if (IndexType.Date == indexType) {
expression = expression.setDefaultValueDate(sort.isDescending() ? DateLow : DateHigh);
} else {
expression = expression.setDefaultValue(sort.isDescending() ? StringLow : StringHigh);
}
sortOptions = sortOptions.addSortExpression(expression);
}
return sortOptions;
}
// Search for nearby places
@Override
public CursorPage<DProduct, String> searchForNearby(
int pageSize,
String cursor,
Float latitude,
Float longitude,
int radius,
RnrService.SortOrder sortOrder) {
// Build the query string
String queryString =
String.format("distance(location, geopoint(%f, %f)) < %d", latitude, longitude, radius);
// Sort expression
SortExpression sortExpression = null;
switch (sortOrder) {
case DISTANCE:
String sortString =
String.format("distance(location, geopoint(%f, %f))", latitude, longitude);
sortExpression =
SortExpression.newBuilder()
.setExpression(sortString)
.setDirection(SortExpression.SortDirection.ASCENDING)
.setDefaultValueNumeric(radius + 1)
.build();
break;
case TOP_RATED:
sortExpression =
SortExpression.newBuilder()
.setExpression("averageRating")
.setDirection(SortExpression.SortDirection.DESCENDING)
.setDefaultValue("")
.build();
break;
case MOST_LIKED:
sortExpression =
SortExpression.newBuilder()
.setExpression("likeCount")
.setDirection(SortExpression.SortDirection.DESCENDING)
.setDefaultValue("")
.build();
break;
case MOST_THUMBS_UP:
sortExpression =
SortExpression.newBuilder()
.setExpression("thumbsUp")
.setDirection(SortExpression.SortDirection.DESCENDING)
.setDefaultValue("")
.build();
break;
}
// Options
QueryOptions options = null;
QueryOptions.Builder builder =
QueryOptions.newBuilder()
.setSortOptions(SortOptions.newBuilder().addSortExpression(sortExpression))
.setLimit(pageSize);
if (null != cursor)
builder.setCursor(com.google.appengine.api.search.Cursor.newBuilder().build(cursor));
// Build query
com.google.appengine.api.search.Query query =
com.google.appengine.api.search.Query.newBuilder().setOptions(options).build(queryString);
return searchInIndexWithQuery(query, getLocationIndex());
}