public CompilableItem(
string providerClassName,
IList<CodegenClass> classes,
CompilableItemPostCompileLatch postCompileLatch,
ICollection<Type> classesProvided)
{
ProviderClassName = providerClassName;
Classes = classes;
PostCompileLatch = postCompileLatch;
ClassesProvided = new Dictionary<string, Type>();
foreach (var classProvided in classesProvided) {
ClassesProvided[classProvided.FullName] = classProvided;
}
}
public static CompilableItem CompileItem(
Compilable compilable,
string optionalModuleName,
string moduleIdentPostfix,
int statementNumber,
ISet<string> statementNames,
ModuleCompileTimeServices moduleCompileTimeServices,
CompilerOptions compilerOptions,
out Assembly assembly)
{
var compileTimeServices = new StatementCompileTimeServices(statementNumber, moduleCompileTimeServices);
// Stage 0 - parse and compile-inline-classes and walk statement
var walked = ParseCompileInlinedClassesWalk(compilable, compileTimeServices);
var raw = walked.StatementSpecRaw;
string classNameCreateClass = null;
if (raw.CreateClassProvided != null) {
classNameCreateClass = DetermineClassNameCreateClass(walked.ClassesInlined);
}
try {
// Stage 2(a) - precompile: compile annotations
var annotations = AnnotationUtil.CompileAnnotations(
raw.Annotations,
compileTimeServices.ImportServiceCompileTime,
compilable);
// Stage 2(b) - walk subselects, alias expressions, declared expressions, dot-expressions
ExprNodeSubselectDeclaredDotVisitor visitor;
try {
visitor = StatementSpecRawWalkerSubselectAndDeclaredDot.WalkSubselectAndDeclaredDotExpr(raw);
}
catch (ExprValidationException ex) {
throw new StatementSpecCompileException(ex.Message, compilable.ToEPL());
}
var subselectNodes = visitor.Subselects;
// Determine a statement name
var statementNameProvided = GetNameFromAnnotation(annotations);
if (compilerOptions.StatementName != null) {
var assignedName = compilerOptions.StatementName.Invoke(
new StatementNameContext(
() => compilable.ToEPL(),
statementNameProvided,
optionalModuleName,
annotations,
statementNumber));
if (assignedName != null) {
statementNameProvided = assignedName;
}
}
var statementName = statementNameProvided ?? Convert.ToString(statementNumber);
if (statementNames.Contains(statementName)) {
var count = 1;
var newStatementName = statementName + "-" + count;
while (statementNames.Contains(newStatementName)) {
count++;
newStatementName = statementName + "-" + count;
}
statementName = newStatementName;
}
statementName = statementName.Trim();
statementNames.Add(statementName);
// Determine table access nodes
var tableAccessNodes = DetermineTableAccessNodes(raw.TableExpressions, visitor);
// compile scripts once in this central place, may also compile later in expression
ScriptValidationPrecompileUtil.ValidateScripts(
raw.ScriptExpressions,
raw.ExpressionDeclDesc,
compileTimeServices);
// Determine subselects for compilation, and lambda-expression shortcut syntax for named windows
if (!visitor.ChainedExpressionsDot.IsEmpty()) {
RewriteNamedWindowSubselect(
visitor.ChainedExpressionsDot,
subselectNodes,
compileTimeServices.NamedWindowCompileTimeResolver);
}
// Stage 2(c) compile context descriptor
ContextCompileTimeDescriptor contextDescriptor = null;
var optionalContextName = raw.OptionalContextName;
if (optionalContextName != null) {
var detail = compileTimeServices.ContextCompileTimeResolver.GetContextInfo(optionalContextName);
if (detail == null) {
throw new StatementSpecCompileException(
"Context by name '" + optionalContextName + "' could not be found",
compilable.ToEPL());
}
contextDescriptor = new ContextCompileTimeDescriptor(
optionalContextName,
detail.ContextModuleName,
detail.ContextVisibility,
new ContextPropertyRegistry(detail),
detail.ValidationInfos);
}
// Stage 2(d) compile raw statement spec
var statementType = StatementTypeUtil.GetStatementType(raw).Value;
var statementRawInfo = new StatementRawInfo(
statementNumber,
statementName,
annotations,
statementType,
contextDescriptor,
raw.IntoTableSpec?.Name,
compilable,
optionalModuleName);
var compiledDesc = StatementRawCompiler.Compile(
raw,
compilable,
false,
false,
annotations,
subselectNodes,
tableAccessNodes,
statementRawInfo,
compileTimeServices);
var specCompiled = compiledDesc.Compiled;
var statementIdentPostfix = IdentifierUtil.GetIdentifierMayStartNumeric(statementName);
// get compile-time user object
object userObjectCompileTime = null;
if (compilerOptions.StatementUserObject != null) {
userObjectCompileTime = compilerOptions.StatementUserObject.Invoke(
new StatementUserObjectContext(
() => compilable.ToEPL(),
statementName,
optionalModuleName,
annotations,
statementNumber));
}
// handle hooks
HandleStatementCompileHook(annotations, compileTimeServices, specCompiled);
// Stage 3(a) - statement-type-specific forge building
var @base = new StatementBaseInfo(
compilable,
specCompiled,
userObjectCompileTime,
statementRawInfo,
optionalModuleName);
StmtForgeMethod forgeMethod;
if (raw.UpdateDesc != null) {
forgeMethod = new StmtForgeMethodUpdate(@base);
}
else if (raw.OnTriggerDesc != null) {
forgeMethod = new StmtForgeMethodOnTrigger(@base);
}
else if (raw.CreateIndexDesc != null) {
forgeMethod = new StmtForgeMethodCreateIndex(@base);
}
else if (raw.CreateVariableDesc != null) {
forgeMethod = new StmtForgeMethodCreateVariable(@base);
}
else if (raw.CreateDataFlowDesc != null) {
forgeMethod = new StmtForgeMethodCreateDataflow(@base);
}
else if (raw.CreateTableDesc != null) {
forgeMethod = new StmtForgeMethodCreateTable(@base);
}
else if (raw.CreateExpressionDesc != null) {
forgeMethod = new StmtForgeMethodCreateExpression(@base);
}
else if (raw.CreateClassProvided != null) {
forgeMethod = new StmtForgeMethodCreateClass(@base, walked.ClassesInlined, classNameCreateClass);
}
else if (raw.CreateWindowDesc != null) {
forgeMethod = new StmtForgeMethodCreateWindow(@base);
}
else if (raw.CreateContextDesc != null) {
forgeMethod = new StmtForgeMethodCreateContext(@base);
}
else if (raw.CreateSchemaDesc != null) {
forgeMethod = new StmtForgeMethodCreateSchema(@base);
}
else {
forgeMethod = new StmtForgeMethodSelect(@base);
}
// check context-validity conditions for this statement
if (contextDescriptor != null) {
try {
foreach (var validator in contextDescriptor.ValidationInfos) {
validator.ValidateStatement(
contextDescriptor.ContextName,
specCompiled,
compileTimeServices);
}
}
catch (ExprValidationException ex) {
throw new StatementSpecCompileException(ex.Message, ex, compilable.ToEPL());
}
}
// Stage 3(b) - forge-factory-to-forge
var classPostfix = moduleIdentPostfix + "_" + statementIdentPostfix;
var forgeables = new List<StmtClassForgeable>();
// add forgeables from filter-related processing i.e. multikeys
foreach (var additional in compiledDesc.AdditionalForgeables) {
var namespaceScope = new CodegenNamespaceScope(compileTimeServices.Namespace, null, false);
forgeables.Add(additional.Make(namespaceScope, classPostfix));
}
var filterSpecCompileds = new List<FilterSpecCompiled>();
var scheduleHandleCallbackProviders = new List<ScheduleHandleCallbackProvider>();
var namedWindowConsumers = new List<NamedWindowConsumerStreamSpec>();
var filterBooleanExpressions = new List<FilterSpecParamExprNodeForge>();
var result = forgeMethod.Make(compileTimeServices.Namespace, classPostfix, compileTimeServices);
forgeables.AddAll(result.Forgeables);
VerifyForgeables(forgeables);
filterSpecCompileds.AddAll(result.Filtereds);
scheduleHandleCallbackProviders.AddAll(result.Scheduleds);
namedWindowConsumers.AddAll(result.NamedWindowConsumers);
filterBooleanExpressions.AddAll(result.FilterBooleanExpressions);
// Stage 3(c) - filter assignments: assign filter callback ids and filter-path-num for boolean expressions
var filterId = -1;
foreach (var provider in filterSpecCompileds) {
var assigned = ++filterId;
provider.FilterCallbackId = assigned;
}
// Stage 3(d) - schedule assignments: assign schedule callback ids
var scheduleId = 0;
foreach (var provider in scheduleHandleCallbackProviders) {
provider.ScheduleCallbackId = scheduleId++;
}
// Stage 3(e) - named window consumers: assign consumer id
var namedWindowConsumerId = 0;
foreach (var provider in namedWindowConsumers) {
provider.NamedWindowConsumerId = namedWindowConsumerId++;
}
// Stage 3(f) - filter boolean expression id assignment
var filterBooleanExprNum = 0;
foreach (var expr in filterBooleanExpressions) {
expr.FilterBoolExprId = filterBooleanExprNum++;
}
// Stage 3(f) - verify substitution parameters
VerifySubstitutionParams(raw.SubstitutionParameters);
// Stage 4 - forge-to-class (forge with statement-fields last)
var classes = forgeables
.Select(forgeable => forgeable.Forge(true, false))
.ToList();
// Stage 5 - refactor methods to make sure the constant pool does not grow too large for any given class
CompilerHelperRefactorToStaticMethods.RefactorMethods(
classes, compileTimeServices.Configuration.Compiler.ByteCode.MaxMethodsPerClass);
// Stage 6 - sort to make the "fields" class first and all the rest later
var sorted = classes
.OrderBy(c => c.ClassType.GetSortCode())
.ToList();
// We are making sure JsonEventType receives the underlying class itself
CompilableItemPostCompileLatch postCompile = CompilableItemPostCompileLatchDefault.INSTANCE;
foreach (var eventType in compileTimeServices.EventTypeCompileTimeRegistry.NewTypesAdded) {
if (eventType is JsonEventType) {
postCompile = new CompilableItemPostCompileLatchJson(
compileTimeServices.EventTypeCompileTimeRegistry.NewTypesAdded,
compileTimeServices.ParentClassLoader);
break;
}
}
var container = compileTimeServices.Container;
var compiler = container
.RoslynCompiler()
.WithCodeLogging(compileTimeServices.Configuration.Compiler.Logging.IsEnableCode)
.WithCodeAuditDirectory(compileTimeServices.Configuration.Compiler.Logging.AuditDirectory)
.WithCodegenClasses(sorted);
assembly = compiler.Compile();
string statementProviderClassName = CodeGenerationIDGenerator.GenerateClassNameWithNamespace(
compileTimeServices.Namespace,
typeof(StatementProvider),
classPostfix);
var additionalClasses = new HashSet<Type>();
additionalClasses.AddAll(walked.ClassesInlined.Classes);
compileTimeServices.ClassProvidedCompileTimeResolver.AddTo(additionalClasses);
compileTimeServices.ClassProvidedCompileTimeRegistry.AddTo(additionalClasses);
return new CompilableItem(
statementProviderClassName,
classes,
postCompile,
additionalClasses);
}
catch (StatementSpecCompileException) {
throw;
}
catch (ExprValidationException ex) {
throw new StatementSpecCompileException(ex.Message, ex, compilable.ToEPL());
}
catch (EPException ex) {
throw new StatementSpecCompileException(ex.Message, ex, compilable.ToEPL());
}
catch (Exception ex) {
var text = ex.Message ?? ex.GetType().FullName;
throw new StatementSpecCompileException(text, ex, compilable.ToEPL());
}
}