public static EventTable[] RealizeTables(
SubordinateQueryIndexDesc[] indexDescriptors,
EventType eventType,
EventTableIndexRepository indexRepository,
IEnumerable <EventBean> contents,
AgentInstanceContext agentInstanceContext,
bool isRecoveringResilient)
{
var tables = new EventTable[indexDescriptors.Length];
for (var i = 0; i < tables.Length; i++)
{
var desc = indexDescriptors[i];
var table = indexRepository.GetIndexByDesc(desc.IndexMultiKey);
if (table == null)
{
table = EventTableUtil.BuildIndex(agentInstanceContext, 0, desc.QueryPlanIndexItem, eventType, true, desc.IndexMultiKey.IsUnique, null, null, false);
// fill table since its new
if (!isRecoveringResilient)
{
var events = new EventBean[1];
foreach (var prefilledEvent in contents)
{
events[0] = prefilledEvent;
table.Add(events);
}
}
indexRepository.AddIndex(desc.IndexMultiKey, new EventTableIndexRepositoryEntry(null, table));
}
tables[i] = table;
}
return(tables);
}
public NamedWindowRootViewInstance(
NamedWindowRootView rootView,
AgentInstanceContext agentInstanceContext,
EventTableIndexMetadata eventTableIndexMetadata)
{
this.rootView = rootView;
AgentInstanceContext = agentInstanceContext;
IndexRepository = new EventTableIndexRepository(eventTableIndexMetadata);
foreach (var entry in eventTableIndexMetadata.Indexes
) {
if (entry.Value.OptionalQueryPlanIndexItem != null) {
var index = EventTableUtil.BuildIndex(
agentInstanceContext,
0,
entry.Value.OptionalQueryPlanIndexItem,
rootView.EventType,
true,
entry.Key.IsUnique,
entry.Value.OptionalIndexName,
null,
false);
IndexRepository.AddIndex(
entry.Key,
new EventTableIndexRepositoryEntry(
entry.Value.OptionalIndexName,
entry.Value.OptionalIndexModuleName,
index));
}
}
}
/// <summary>
/// The AddIndex
/// </summary>
/// <param name="unique">The <see cref="bool"/></param>
/// <param name="hashProps">The <see cref="IList{IndexedPropDesc}"/></param>
/// <param name="btreeProps">The <see cref="IList{IndexedPropDesc}"/></param>
/// <param name="advancedIndexProvisionDesc">The <see cref="EventAdvancedIndexProvisionDesc"/></param>
/// <param name="prefilledEvents">The <see cref="IEnumerable{EventBean}"/></param>
/// <param name="indexedType">The <see cref="EventType"/></param>
/// <param name="indexName">The <see cref="string"/></param>
/// <param name="mustCoerce">The <see cref="bool"/></param>
/// <param name="agentInstanceContext">The <see cref="AgentInstanceContext"/></param>
/// <param name="optionalSerde">The <see cref="object"/></param>
/// <returns>The <see cref="Pair{IndexMultiKey, EventTableAndNamePair}"/></returns>
private Pair <IndexMultiKey, EventTableAndNamePair> AddIndex(
bool unique,
IList <IndexedPropDesc> hashProps,
IList <IndexedPropDesc> btreeProps,
EventAdvancedIndexProvisionDesc advancedIndexProvisionDesc,
IEnumerable <EventBean> prefilledEvents,
EventType indexedType,
string indexName,
bool mustCoerce,
AgentInstanceContext agentInstanceContext,
object optionalSerde)
{
// not resolved as full match and not resolved as unique index match, allocate
var indexPropKey = new IndexMultiKey(unique, hashProps, btreeProps, advancedIndexProvisionDesc == null ? null : advancedIndexProvisionDesc.IndexDesc);
var indexedPropDescs = hashProps.ToArray();
var indexProps = IndexedPropDesc.GetIndexProperties(indexedPropDescs);
var indexCoercionTypes = IndexedPropDesc.GetCoercionTypes(indexedPropDescs);
if (!mustCoerce)
{
indexCoercionTypes = null;
}
var rangePropDescs = btreeProps.ToArray();
var rangeProps = IndexedPropDesc.GetIndexProperties(rangePropDescs);
var rangeCoercionTypes = IndexedPropDesc.GetCoercionTypes(rangePropDescs);
var indexItem = new QueryPlanIndexItem(indexProps, indexCoercionTypes, rangeProps, rangeCoercionTypes, unique, advancedIndexProvisionDesc);
var table = EventTableUtil.BuildIndex(agentInstanceContext, 0, indexItem, indexedType, true, unique, indexName, optionalSerde, false);
// fill table since its new
var events = new EventBean[1];
foreach (EventBean prefilledEvent in prefilledEvents)
{
events[0] = prefilledEvent;
table.Add(events, agentInstanceContext);
}
// add table
_tables.Add(table);
// add index, reference counted
_tableIndexesRefCount.Put(indexPropKey, new EventTableIndexRepositoryEntry(indexName, table));
return(new Pair <IndexMultiKey, EventTableAndNamePair>(indexPropKey, new EventTableAndNamePair(table, indexName)));
}
public NamedWindowRootViewInstance(NamedWindowRootView rootView, AgentInstanceContext agentInstanceContext, EventTableIndexMetadata eventTableIndexMetadata)
{
_rootView = rootView;
_agentInstanceContext = agentInstanceContext;
_indexRepository = new EventTableIndexRepository();
foreach (KeyValuePair <IndexMultiKey, EventTableIndexMetadataEntry> entry in eventTableIndexMetadata.Indexes)
{
if (entry.Value.QueryPlanIndexItem != null)
{
EventTable index = EventTableUtil.BuildIndex(agentInstanceContext, 0, entry.Value.QueryPlanIndexItem, rootView.EventType, true, entry.Key.IsUnique, entry.Value.OptionalIndexName, null, false);
_indexRepository.AddIndex(entry.Key, new EventTableIndexRepositoryEntry(entry.Value.OptionalIndexName, index));
}
}
_tablePerMultiLookup = new Dictionary <SubordWMatchExprLookupStrategy, EventTable[]>();
}
public JoinSetComposerDesc Create(Viewable[] streamViews, bool isFireAndForget, AgentInstanceContext agentInstanceContext)
{
// Build indexes
var indexesPerStream = new IDictionary <TableLookupIndexReqKey, EventTable> [_indexSpecs.Length];
var tableSecondaryIndexLocks = new ILockable[_indexSpecs.Length];
var hasTable = false;
for (var streamNo = 0; streamNo < _indexSpecs.Length; streamNo++)
{
if (_indexSpecs[streamNo] == null)
{
continue;
}
var items = _indexSpecs[streamNo].Items;
indexesPerStream[streamNo] = new LinkedHashMap <TableLookupIndexReqKey, EventTable>();
if (_streamJoinAnalysisResult.TablesPerStream[streamNo] != null)
{
// build for tables
var metadata = _streamJoinAnalysisResult.TablesPerStream[streamNo];
var state = _tableService.GetState(metadata.TableName, agentInstanceContext.AgentInstanceId);
foreach (var indexName in state.SecondaryIndexes) // add secondary indexes
{
var eventTable = state.GetIndex(indexName);
indexesPerStream[streamNo].Put(new TableLookupIndexReqKey(indexName, metadata.TableName), eventTable);
}
var index = state.GetIndex(metadata.TableName); // add primary index
indexesPerStream[streamNo].Put(new TableLookupIndexReqKey(metadata.TableName, metadata.TableName), index);
hasTable = true;
tableSecondaryIndexLocks[streamNo] = agentInstanceContext.StatementContext.IsWritesToTables
? state.TableLevelRWLock.WriteLock
: state.TableLevelRWLock.ReadLock;
}
else
{
// build tables for implicit indexes
foreach (var entry in items)
{
EventTable index;
if (_streamJoinAnalysisResult.ViewExternal[streamNo] != null)
{
var view = _streamJoinAnalysisResult.ViewExternal[streamNo].Invoke(agentInstanceContext);
index = view.GetJoinIndexTable(items.Get(entry.Key));
}
else
{
index = EventTableUtil.BuildIndex(streamNo, items.Get(entry.Key), _streamTypes[streamNo], false, entry.Value.IsUnique, null);
}
indexesPerStream[streamNo].Put(entry.Key, index);
}
}
}
// obtain any external views
var externalViewProviders = _streamJoinAnalysisResult.ViewExternal;
var externalViews = new VirtualDWView[externalViewProviders.Length];
for (var i = 0; i < externalViews.Length; i++)
{
if (externalViewProviders[i] != null)
{
externalViews[i] = _streamJoinAnalysisResult.ViewExternal[i].Invoke(agentInstanceContext);
}
}
// Build strategies
var queryExecSpecs = _queryPlan.ExecNodeSpecs;
var queryStrategies = new QueryStrategy[queryExecSpecs.Length];
for (var i = 0; i < queryExecSpecs.Length; i++)
{
var planNode = queryExecSpecs[i];
if (planNode == null)
{
Log.Debug(".makeComposer No execution node for stream " + i + " '" + _streamNames[i] + "'");
continue;
}
var executionNode = planNode.MakeExec(_statementName, _statementId, _annotations, indexesPerStream, _streamTypes, streamViews, _historicalStreamIndexLists, externalViews, tableSecondaryIndexLocks);
if (Log.IsDebugEnabled)
{
Log.Debug(".makeComposer Execution nodes for stream " + i + " '" + _streamNames[i] +
"' : \n" + ExecNode.Print(executionNode));
}
queryStrategies[i] = new ExecNodeQueryStrategy(i, _streamTypes.Length, executionNode);
}
// Remove indexes that are from tables as these are only available to query strategies
if (hasTable)
{
indexesPerStream = RemoveTableIndexes(indexesPerStream, _streamJoinAnalysisResult.TablesPerStream);
}
// If this is not unidirectional and not a self-join (excluding self-outer-join)
JoinSetComposerDesc joinSetComposerDesc;
if ((!_streamJoinAnalysisResult.IsUnidirectional) &&
(!_streamJoinAnalysisResult.IsPureSelfJoin || _outerJoinDescList.Length > 0))
{
JoinSetComposer composer;
if (_historicalViewableDesc.HasHistorical)
{
composer = new JoinSetComposerHistoricalImpl(indexesPerStream, queryStrategies, streamViews, _exprEvaluatorContext);
}
else
{
if (isFireAndForget)
{
composer = new JoinSetComposerFAFImpl(indexesPerStream, queryStrategies, _streamJoinAnalysisResult.IsPureSelfJoin, _exprEvaluatorContext, _joinRemoveStream, _isOuterJoins);
}
else
{
composer = new JoinSetComposerImpl(indexesPerStream, queryStrategies, _streamJoinAnalysisResult.IsPureSelfJoin, _exprEvaluatorContext, _joinRemoveStream);
}
}
// rewrite the filter expression for all-inner joins in case "on"-clause outer join syntax was used to include those expressions
var filterExpression = GetFilterExpressionInclOnClause(_optionalFilterNode, _outerJoinDescList);
var postJoinEval = filterExpression == null ? null : filterExpression.ExprEvaluator;
joinSetComposerDesc = new JoinSetComposerDesc(composer, postJoinEval);
}
else
{
QueryStrategy driver;
int unidirectionalStream;
if (_streamJoinAnalysisResult.UnidirectionalStreamNumber != -1)
{
unidirectionalStream = _streamJoinAnalysisResult.UnidirectionalStreamNumber;
driver = queryStrategies[unidirectionalStream];
}
else
{
unidirectionalStream = 0;
driver = queryStrategies[0];
}
JoinSetComposer composer = new JoinSetComposerStreamToWinImpl(indexesPerStream, _streamJoinAnalysisResult.IsPureSelfJoin,
unidirectionalStream, driver, _streamJoinAnalysisResult.UnidirectionalNonDriving);
var postJoinEval = _optionalFilterNode == null ? null : _optionalFilterNode.ExprEvaluator;
joinSetComposerDesc = new JoinSetComposerDesc(composer, postJoinEval);
}
// compile prior events per stream to preload any indexes
var eventsPerStream = new EventBean[_streamNames.Length][];
var events = new List <EventBean>();
for (var i = 0; i < eventsPerStream.Length; i++)
{
// For named windows and tables, we don't need to preload indexes from the iterators as this is always done already
if (_streamJoinAnalysisResult.NamedWindow[i] || _streamJoinAnalysisResult.TablesPerStream[i] != null)
{
continue;
}
IEnumerator <EventBean> en = null;
if (!(streamViews[i] is HistoricalEventViewable) && !(streamViews[i] is DerivedValueView))
{
try
{
en = streamViews[i].GetEnumerator();
}
catch (UnsupportedOperationException)
{
// Joins do not support the iterator
}
}
if (en != null)
{
while (en.MoveNext())
{
events.Add(en.Current);
}
eventsPerStream[i] = events.ToArray();
events.Clear();
}
else
{
eventsPerStream[i] = new EventBean[0];
}
}
// init
joinSetComposerDesc.JoinSetComposer.Init(eventsPerStream);
return(joinSetComposerDesc);
}