// requires: schema refers to C-side or S-side schema for the cells
// inside this. if schema.IsQueryView is true, the left side of cells refers
// to the C side (and vice-versa for the right side)
// effects: Generates the relevant views for the schema side and
// returns them. If allowMissingAttributes is true and attributes
// are missing on the schema side, substitutes them with NULL
// Modifies views to contain the generated views for different
// extents specified by cells and the schemaContext
private ErrorLog GenerateDirectionalViews(ViewTarget viewTarget, CqlIdentifiers identifiers, ViewSet views)
{
var isQueryView = viewTarget == ViewTarget.QueryView;
// Partition cells by extent.
var extentCellMap = GroupCellsByExtent(m_cellGroup, viewTarget);
// Keep track of the mapping exceptions that we have generated
var errorLog = new ErrorLog();
// Generate views for each extent
foreach (var extent in extentCellMap.Keys)
{
if (m_config.IsViewTracing)
{
Helpers.StringTraceLine(String.Empty);
Helpers.StringTraceLine(String.Empty);
Helpers.FormatTraceLine(
"================= Generating {0} View for: {1} ===========================",
isQueryView ? "Query" : "Update", extent.Name);
Helpers.StringTraceLine(String.Empty);
Helpers.StringTraceLine(String.Empty);
}
try
{
// (1) view generation (checks that extents are fully mapped)
var queryRewriter = GenerateDirectionalViewsForExtent(viewTarget, extent, identifiers, views);
// (2) validation for update views
if (viewTarget == ViewTarget.UpdateView
&&
m_config.IsValidationEnabled)
{
if (m_config.IsViewTracing)
{
Helpers.StringTraceLine(String.Empty);
Helpers.StringTraceLine(String.Empty);
Helpers.FormatTraceLine(
"----------------- Validation for generated update view for: {0} -----------------",
extent.Name);
Helpers.StringTraceLine(String.Empty);
Helpers.StringTraceLine(String.Empty);
}
var validator = new RewritingValidator(queryRewriter.ViewgenContext, queryRewriter.BasicView);
validator.Validate();
}
}
catch (InternalMappingException exception)
{
// All exceptions have mapping errors in them
Debug.Assert(
exception.ErrorLog.Count > 0,
"Incorrectly created mapping exception");
errorLog.Merge(exception.ErrorLog);
}
}
return(errorLog);
}
// requires: schema refers to C-side or S-side schema for the cells
// inside this. if schema.IsQueryView is true, the left side of cells refers
// to the C side (and vice-versa for the right side)
// effects: Generates the relevant views for the schema side and
// returns them. If allowMissingAttributes is true and attributes
// are missing on the schema side, substitutes them with NULL
// Modifies views to contain the generated views for different
// extents specified by cells and the the schemaContext
private ErrorLog GenerateDirectionalViews(ViewTarget viewTarget, CqlIdentifiers identifiers, ViewSet views)
{
var isQueryView = viewTarget == ViewTarget.QueryView;
// Partition cells by extent.
var extentCellMap = GroupCellsByExtent(m_cellGroup, viewTarget);
// Keep track of the mapping exceptions that we have generated
var errorLog = new ErrorLog();
// Generate views for each extent
foreach (var extent in extentCellMap.Keys)
{
if (m_config.IsViewTracing)
{
Helpers.StringTraceLine(String.Empty);
Helpers.StringTraceLine(String.Empty);
Helpers.FormatTraceLine(
"================= Generating {0} View for: {1} ===========================",
isQueryView ? "Query" : "Update", extent.Name);
Helpers.StringTraceLine(String.Empty);
Helpers.StringTraceLine(String.Empty);
}
try
{
// (1) view generation (checks that extents are fully mapped)
var queryRewriter = GenerateDirectionalViewsForExtent(viewTarget, extent, identifiers, views);
// (2) validation for update views
if (viewTarget == ViewTarget.UpdateView
&&
m_config.IsValidationEnabled)
{
if (m_config.IsViewTracing)
{
Helpers.StringTraceLine(String.Empty);
Helpers.StringTraceLine(String.Empty);
Helpers.FormatTraceLine(
"----------------- Validation for generated update view for: {0} -----------------",
extent.Name);
Helpers.StringTraceLine(String.Empty);
Helpers.StringTraceLine(String.Empty);
}
var validator = new RewritingValidator(queryRewriter.ViewgenContext, queryRewriter.BasicView);
validator.Validate();
}
}
catch (InternalMappingException exception)
{
// All exceptions have mapping errors in them
Debug.Assert(
exception.ErrorLog.Count > 0,
"Incorrectly created mapping exception");
errorLog.Merge(exception.ErrorLog);
}
}
return errorLog;
}
