/// <summary>
/// Performs the query override.
/// </summary>
/// <param name="indexTypeMapping">The index type mapping.</param>
/// <param name="query">The query.</param>
/// <param name="messageContext">The message context.</param>
private void PerformQueryOverride(IndexTypeMapping indexTypeMapping, BaseMultiIndexIdQuery <PagedIndexQueryResult> query, MessageContext messageContext)
{
PagedIndexQuery pagedQuery = query as PagedIndexQuery;
if (indexTypeMapping.QueryOverrideSettings != null)
{
// override MaxItemsPerIndexThreshold if required
if (indexTypeMapping.QueryOverrideSettings.MaxItemsPerIndexThreshold != 0 &&
pagedQuery.IndexIdList.Count > 1 &&
pagedQuery.PageNum == 0 &&
(pagedQuery.IndexIdParamsMapping == null || pagedQuery.IndexIdParamsMapping.Count == 0) &&
pagedQuery.MaxItemsPerIndex == 0 &&
pagedQuery.Filter == null)
{
LoggingUtil.Log.ErrorFormat(
"Encountered Potentially Bad Paged Query. Overriding MaxItemsPerIndex to {0}. AddressHistory {1}. Original Query Info: {2}",
indexTypeMapping.QueryOverrideSettings.MaxItemsPerIndexThreshold,
IndexServerUtils.FormatAddressHistory(messageContext.AddressHistory),
FormatQueryInfo(pagedQuery));
pagedQuery.MaxItemsPerIndex = indexTypeMapping.QueryOverrideSettings.MaxItemsPerIndexThreshold;
}
// override PageNum if required
if (indexTypeMapping.QueryOverrideSettings.DisableFullPageQuery && pagedQuery.PageNum == 0 && pagedQuery.PageSize != 0)
{
LoggingUtil.Log.InfoFormat(
"Configuration rules require overriding PageNum to 1. AddressHistory {0}. Original Query Info: {1}",
IndexServerUtils.FormatAddressHistory(messageContext.AddressHistory),
FormatQueryInfo(pagedQuery));
pagedQuery.PageNum = 1;
}
}
}
/// <summary>
/// Processes the subsets.
/// </summary>
/// <param name="query">The query.</param>
/// <param name="resultItemList">The result item list.</param>
/// <param name="groupByResult">The GroupByResult</param>
/// <param name="baseComparer">The BaseComparer</param>
protected override void ProcessSubsets(BaseMultiIndexIdQuery <PagedIndexQueryResult> query,
ref List <ResultItem> resultItemList,
ref GroupByResult groupByResult,
BaseComparer baseComparer)
{
PagedIndexQuery pagedQuery = query as PagedIndexQuery;
if (!pagedQuery.ClientSideSubsetProcessingRequired && pagedQuery.PageNum != 0)
{
int pageSize = pagedQuery.PageSize;
int start = (pagedQuery.PageNum - 1) * pageSize;
int end = pagedQuery.PageNum * pageSize;
if (pagedQuery.GroupBy == null)
{
List <ResultItem> pageFilteredResultItemList = new List <ResultItem>();
for (int i = start; i < end && i < resultItemList.Count; i++)
{
pageFilteredResultItemList.Add(resultItemList[i]);
}
resultItemList = pageFilteredResultItemList;
}
else
{
GroupByResult pageGroupByResult = new GroupByResult(baseComparer);
for (int i = start; i < end && i < groupByResult.Count; i++)
{
pageGroupByResult.Add(groupByResult[i].CompositeKey, groupByResult[i]);
}
groupByResult = pageGroupByResult;
}
}
}
/// <summary>
/// Formats the query info.
/// </summary>
/// <param name="query">The query.</param>
/// <returns>String containing formatted QueryInfo</returns>
protected override string FormatQueryInfo(BaseMultiIndexIdQuery <PagedIndexQueryResult> query)
{
PagedIndexQuery pagedQuery = query as PagedIndexQuery;
StringBuilder stb = new StringBuilder(base.FormatQueryInfo(query));
stb.Append("PageNum: ").Append(pagedQuery.PageNum).Append(", ");
stb.Append("PageSize: ").Append(pagedQuery.PageSize);
return(stb.ToString());
}
/// <summary>
/// Processes the subsets.
/// </summary>
/// <param name="query">The query.</param>
/// <param name="resultItemList">The result item list.</param>
protected override void ProcessSubsets(BaseMultiIndexIdQuery <PagedIndexQueryResult> query, ref List <ResultItem> resultItemList)
{
PagedIndexQuery pagedQuery = query as PagedIndexQuery;
if (!pagedQuery.ClientSideSubsetProcessingRequired && pagedQuery.PageNum != 0)
{
List <ResultItem> pageFilteredResultItemList = new List <ResultItem>();
int pageSize = pagedQuery.PageSize;
int start = (pagedQuery.PageNum - 1) * pageSize;
int end = pagedQuery.PageNum * pageSize;
for (int i = start; i < end && i < resultItemList.Count; i++)
{
pageFilteredResultItemList.Add(resultItemList[i]);
}
resultItemList = pageFilteredResultItemList;
}
}
// copy ctor
public VirtualPagedIndexQuery(PagedIndexQuery query)
: base(query)
{
}
/// <summary>
/// Formats the query info.
/// </summary>
/// <param name="query">The query.</param>
/// <returns>String containing formatted QueryInfo</returns>
protected override string FormatQueryInfo(BaseMultiIndexIdQuery <PagedIndexQueryResult> query)
{
PagedIndexQuery pagedQuery = query as PagedIndexQuery;
return(pagedQuery.ToString());
}
