/// <summary>
/// The SnapshotCustomIndex
/// </summary>
/// <param name="queryGraphValue">The <see cref="QueryGraphValue"/></param>
/// <param name="indexRepository">The <see cref="EventTableIndexRepository"/></param>
/// <param name="attributes">The <see cref="Attribute"/> array</param>
/// <param name="agentInstanceContext">The <see cref="AgentInstanceContext"/></param>
/// <param name="queryPlanLogging">The <see cref="bool"/></param>
/// <param name="queryPlanLogDestination">The <see cref="ILog"/></param>
/// <param name="objectName">The <see cref="string"/></param>
/// <returns>The <see cref="ICollection{EventBean}"/></returns>
private static NullableObject <ICollection <EventBean> > SnapshotCustomIndex(
QueryGraphValue queryGraphValue,
EventTableIndexRepository indexRepository,
Attribute[] attributes,
AgentInstanceContext agentInstanceContext,
bool queryPlanLogging,
ILog queryPlanLogDestination,
string objectName)
{
EventTable table = null;
string indexName = null;
QueryGraphValueEntryCustomOperation values = null;
// find matching index
var found = false;
foreach (var valueDesc in queryGraphValue.Items)
{
if (valueDesc.Entry is QueryGraphValueEntryCustom)
{
var customIndex = (QueryGraphValueEntryCustom)valueDesc.Entry;
foreach (var entry in indexRepository.TableIndexesRefCount)
{
if (entry.Key.AdvancedIndexDesc == null)
{
continue;
}
var metadata = indexRepository.EventTableIndexMetadata.Indexes.Get(entry.Key);
if (metadata == null || metadata.ExplicitIndexNameIfExplicit == null)
{
continue;
}
EventAdvancedIndexProvisionDesc provision = metadata.QueryPlanIndexItem.AdvancedIndexProvisionDesc;
if (provision == null)
{
continue;
}
foreach (var op in customIndex.Operations)
{
if (!provision.Factory.ProvidesIndexForOperation(op.Key.OperationName, op.Value.PositionalExpressions))
{
continue;
}
if (ExprNodeUtility.DeepEquals(entry.Key.AdvancedIndexDesc.IndexedExpressions, op.Key.ExprNodes, true))
{
values = op.Value;
table = entry.Value.Table;
indexName = metadata.ExplicitIndexNameIfExplicit;
found = true;
break;
}
}
if (found)
{
break;
}
}
}
if (found)
{
break;
}
}
if (table == null)
{
return(null);
}
// report
queryPlanReport(indexName, table, attributes, agentInstanceContext, queryPlanLogging, queryPlanLogDestination, objectName);
// execute
EventTableQuadTree index = (EventTableQuadTree)table;
var x = Eval(values.PositionalExpressions.Get(0).ExprEvaluator, agentInstanceContext, "x");
var y = Eval(values.PositionalExpressions.Get(1).ExprEvaluator, agentInstanceContext, "y");
var width = Eval(values.PositionalExpressions.Get(2).ExprEvaluator, agentInstanceContext, "width");
var height = Eval(values.PositionalExpressions.Get(3).ExprEvaluator, agentInstanceContext, "height");
var result = index.QueryRange(x, y, width, height);
return(new NullableObject <ICollection <EventBean> >(result));
}
private static NullableObject<ICollection<EventBean>> SnapshotCustomIndex(
QueryGraphValue queryGraphValue,
EventTableIndexRepository indexRepository,
Attribute[] annotations,
AgentInstanceContext agentInstanceContext,
string objectName)
{
EventTable table = null;
string indexName = null;
QueryGraphValueEntryCustomOperation values = null;
// find matching index
var found = false;
foreach (var valueDesc in queryGraphValue.Items) {
if (valueDesc.Entry is QueryGraphValueEntryCustom) {
var customIndex = (QueryGraphValueEntryCustom) valueDesc.Entry;
foreach (var entry in indexRepository.TableIndexesRefCount) {
if (entry.Key.AdvancedIndexDesc == null) {
continue;
}
var metadata = indexRepository.EventTableIndexMetadata.Indexes.Get(entry.Key);
if (metadata == null || metadata.ExplicitIndexNameIfExplicit == null) {
continue;
}
var provision = metadata.OptionalQueryPlanIndexItem.AdvancedIndexProvisionDesc;
if (provision == null) {
continue;
}
foreach (var op in customIndex.Operations) {
if (!provision.Factory.Forge.ProvidesIndexForOperation(op.Key.OperationName)) {
continue;
}
var indexProperties = entry.Key.AdvancedIndexDesc.IndexExpressions;
var expressions = op.Key.Expressions;
if (Arrays.AreEqual(indexProperties, expressions)) {
values = op.Value;
table = entry.Value.Table;
indexName = metadata.ExplicitIndexNameIfExplicit;
found = true;
break;
}
}
if (found) {
break;
}
}
}
if (found) {
break;
}
}
if (table == null) {
return null;
}
// report
QueryPlanReport(indexName, table, annotations, agentInstanceContext, objectName);
// execute
var index = (EventTableQuadTree) table;
var x = Eval(values.PositionalExpressions.Get(0), agentInstanceContext, "x");
var y = Eval(values.PositionalExpressions.Get(1), agentInstanceContext, "y");
var width = Eval(values.PositionalExpressions.Get(2), agentInstanceContext, "width");
var height = Eval(values.PositionalExpressions.Get(3), agentInstanceContext, "height");
return new NullableObject<ICollection<EventBean>>(
index.QueryRange(x, y, width, height));
}
/// <summary>
/// The SnapshotInKeyword
/// </summary>
/// <param name="queryGraphValue">The <see cref="QueryGraphValue"/></param>
/// <param name="indexRepository">The <see cref="EventTableIndexRepository"/></param>
/// <param name="virtualDataWindow">The <see cref="VirtualDWView"/></param>
/// <param name="attributes">The <see cref="Attribute" /> array</param>
/// <param name="agentInstanceContext">The <see cref="AgentInstanceContext"/></param>
/// <param name="queryPlanLogging">The <see cref="bool"/></param>
/// <param name="queryPlanLogDestination">The <see cref="ILog"/></param>
/// <param name="objectName">The <see cref="string"/></param>
/// <returns>The collection of event beans</returns>
private static NullableObject <ICollection <EventBean> > SnapshotInKeyword(
QueryGraphValue queryGraphValue,
EventTableIndexRepository indexRepository,
VirtualDWView virtualDataWindow,
Attribute[] attributes,
AgentInstanceContext agentInstanceContext,
bool queryPlanLogging,
ILog queryPlanLogDestination,
string objectName)
{
var inkwSingles = queryGraphValue.InKeywordSingles;
if (inkwSingles.Indexed.Length == 0)
{
return(null);
}
var tablePair = FindIndex(
new HashSet <string>(inkwSingles.Indexed),
Collections.GetEmptySet <string>(),
indexRepository,
virtualDataWindow,
attributes);
if (tablePair == null)
{
return(null);
}
queryPlanReport(tablePair.Second.IndexName, tablePair.Second.EventTable, attributes, agentInstanceContext, queryPlanLogging, queryPlanLogDestination, objectName);
var evaluateParamsTrue = new EvaluateParams(null, true, agentInstanceContext);
// table lookup with in-clause: determine combinations
var tableHashProps = tablePair.First.HashIndexedProps;
var combinations = new Object[tableHashProps.Length][];
for (var tableHashPropNum = 0; tableHashPropNum < tableHashProps.Length; tableHashPropNum++)
{
for (var i = 0; i < inkwSingles.Indexed.Length; i++)
{
if (inkwSingles.Indexed[i].Equals(tableHashProps[tableHashPropNum].IndexPropName))
{
var keysExpressions = inkwSingles.Key[i];
var values = new Object[keysExpressions.KeyExprs.Count];
combinations[tableHashPropNum] = values;
for (var j = 0; j < keysExpressions.KeyExprs.Count; j++)
{
values[j] = keysExpressions.KeyExprs[j].ExprEvaluator.Evaluate(evaluateParamsTrue);
}
}
}
}
// enumerate combinations
var enumeration = CombinationEnumeration.New(combinations);
var events = new HashSet <EventBean>();
foreach (Object[] keys in enumeration)
{
var result = FafTableLookup(virtualDataWindow, tablePair.First, tablePair.Second.EventTable, keys, null, attributes);
events.AddAll(result);
}
return(new NullableObject <ICollection <EventBean> >(events));
}
private static NullableObject<ICollection<EventBean>> SnapshotInKeyword(
QueryGraphValue queryGraphValue,
EventTableIndexRepository indexRepository,
VirtualDWView virtualDataWindow,
Attribute[] annotations,
AgentInstanceContext agentInstanceContext,
string objectName)
{
var inkwSingles = queryGraphValue.InKeywordSingles;
if (inkwSingles.Indexed.Length == 0) {
return null;
}
Pair<IndexMultiKey, EventTableAndNamePair> tablePair = FindIndex(
new HashSet<string>(inkwSingles.Indexed),
new EmptySet<string>(),
indexRepository,
virtualDataWindow,
annotations);
if (tablePair == null) {
return null;
}
QueryPlanReport(
tablePair.Second.IndexName,
tablePair.Second.EventTable,
annotations,
agentInstanceContext,
objectName);
// table lookup with in-clause: determine combinations
var tableHashProps = tablePair.First.HashIndexedProps;
var combinations = new object[tableHashProps.Length][];
for (var tableHashPropNum = 0; tableHashPropNum < tableHashProps.Length; tableHashPropNum++) {
for (var i = 0; i < inkwSingles.Indexed.Length; i++) {
if (inkwSingles.Indexed[i].Equals(tableHashProps[tableHashPropNum].IndexPropName)) {
QueryGraphValueEntryInKeywordSingleIdx keysExpressions = inkwSingles.Key[i];
var values = new object[keysExpressions.KeyExprs.Length];
combinations[tableHashPropNum] = values;
for (var j = 0; j < keysExpressions.KeyExprs.Length; j++) {
values[j] = keysExpressions.KeyExprs[j].Evaluate(null, true, agentInstanceContext);
}
}
}
}
// enumerate combinations
var enumeration = new CombinationEnumeration(combinations);
var events = new HashSet<EventBean>();
while (enumeration.MoveNext()) {
object[] keys = enumeration.Current;
var result = FafTableLookup(
virtualDataWindow,
tablePair.First,
tablePair.Second.EventTable,
keys,
null,
annotations,
agentInstanceContext);
events.AddAll(result);
}
return new NullableObject<ICollection<EventBean>>(events);
}