protected CellRequest createRequest(
final String cube,
final String measureName,
final String[] tables,
final String[] columns,
final String[] values,
CellRequestConstraint aggConstraint) {
RolapStar.Measure starMeasure = getMeasure(cube, measureName);
CellRequest request = createRequest(cube, measureName, tables, columns, values);
final RolapStar star = starMeasure.getStar();
request.addAggregateList(aggConstraint.getBitKey(star), aggConstraint.toPredicate(star));
return request;
}
protected CellRequest createRequest(
final String cube,
final String measureName,
final String[] tables,
final String[] columns,
final String[] values) {
RolapStar.Measure starMeasure = getMeasure(cube, measureName);
CellRequest request = new CellRequest(starMeasure, false, false);
final RolapStar star = starMeasure.getStar();
for (int i = 0; i < tables.length; i++) {
String table = tables[i];
if (table != null && table.length() > 0) {
String column = columns[i];
String value = values[i];
final RolapStar.Column storeTypeColumn = star.lookupColumn(table, column);
request.addConstrainedColumn(
storeTypeColumn, new ValueColumnPredicate(storeTypeColumn, value));
}
}
return request;
}
public PeekResponse call() {
final RolapStar.Measure measure = request.getMeasure();
final RolapStar star = measure.getStar();
final RolapSchema schema = star.getSchema();
final AggregationKey key = new AggregationKey(request);
final List<SegmentHeader> headers =
indexRegistry
.getIndex(star)
.locate(
schema.getName(),
schema.getChecksum(),
measure.getCubeName(),
measure.getName(),
star.getFactTable().getAlias(),
request.getConstrainedColumnsBitKey(),
request.getMappedCellValues(),
AggregationKey.getCompoundPredicateStringList(
star, key.getCompoundPredicateList()));
final Map<SegmentHeader, Future<SegmentBody>> headerMap =
new HashMap<SegmentHeader, Future<SegmentBody>>();
final Map<List, SegmentBuilder.SegmentConverter> converterMap =
new HashMap<List, SegmentBuilder.SegmentConverter>();
// Is there a pending segment? (A segment that has been created and
// is loading via SQL.)
for (final SegmentHeader header : headers) {
final Future<SegmentBody> bodyFuture = indexRegistry.getIndex(star).getFuture(header);
if (bodyFuture != null) {
// Check if the DataSourceChangeListener wants us to clear
// the current segment
if (star.getChangeListener() != null
&& star.getChangeListener().isAggregationChanged(key)) {
/*
* We can't satisfy this request, and we must clear the
* data from our cache. We clear it from the index
* first, then queue up a job in the background
* to remove the data from all the caches.
*/
indexRegistry.getIndex(star).remove(header);
Util.safeGet(
cacheExecutor.submit(
new Runnable() {
public void run() {
try {
compositeCache.remove(header);
} catch (Throwable e) {
LOGGER.warn("remove header failed: " + header, e);
}
}
}),
"SegmentCacheManager.peek");
}
converterMap.put(
SegmentCacheIndexImpl.makeConverterKey(header), getConverter(star, header));
headerMap.put(header, bodyFuture);
}
}
return new PeekResponse(headerMap, converterMap);
}
