public void SyntaxValidate(
Module module,
CompilerArguments arguments)
{
if (arguments == null) {
arguments = new CompilerArguments(new Configuration());
}
// determine module name
var moduleName = DetermineModuleName(arguments.Options, module);
var moduleUses = DetermineModuleUses(moduleName, arguments.Options, module);
var moduleCompileTimeServices = GetCompileTimeServices(arguments, moduleName, moduleUses, false);
var statementNumber = 0;
try {
foreach (var item in module.Items) {
var services = new StatementCompileTimeServices(statementNumber, moduleCompileTimeServices);
if (item.IsCommentOnly) {
continue;
}
if (item.Expression != null && item.Model != null) {
throw new EPCompileException(
"Module item has both an EPL expression and a statement object model");
}
if (item.Expression != null) {
CompilerHelperSingleEPL.ParseCompileInlinedClassesWalk(new CompilableEPL(item.Expression), services);
}
else if (item.Model != null) {
CompilerHelperSingleEPL.ParseCompileInlinedClassesWalk(new CompilableSODA(item.Model), services);
item.Model.ToEPL();
}
else {
throw new EPCompileException(
"Module item has neither an EPL expression nor a statement object model");
}
statementNumber++;
}
}
catch (Exception ex) {
throw new EPCompileException(ex.Message, ex);
}
}
public StatementSpecRaw ParseWalk(
string epl,
StatementSpecMapEnv mapEnv)
{
return CompilerHelperSingleEPL.ParseWalk(epl, mapEnv);
}
public static EPCompiled Compile(
Compilable compilable,
ModuleCompileTimeServices services,
CompilerArguments args)
{
var compileTimeServices = new StatementCompileTimeServices(0, services);
var walkResult = CompilerHelperSingleEPL.ParseCompileInlinedClassesWalk(compilable, compileTimeServices);
var raw = walkResult.StatementSpecRaw;
var statementType = StatementTypeUtil.GetStatementType(raw);
if (statementType != StatementType.SELECT) {
// the fire-and-forget spec is null for "select" and populated for I/U/D
throw new StatementSpecCompileException(
"Provided EPL expression is a continuous query expression (not an on-demand query)",
compilable.ToEPL());
}
var annotations = AnnotationUtil.CompileAnnotations(
raw.Annotations,
services.ImportServiceCompileTime,
compilable);
// walk subselects, alias expressions, declared expressions, dot-expressions
var visitor = StatementSpecRawWalkerSubselectAndDeclaredDot.WalkSubselectAndDeclaredDotExpr(raw);
// compile context descriptor
ContextCompileTimeDescriptor contextDescriptor = null;
var optionalContextName = raw.OptionalContextName;
if (optionalContextName != null) {
var detail = services.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);
}
var statementNameFromAnnotation = GetNameFromAnnotation(annotations);
var statementName = statementNameFromAnnotation == null ? GetDefaultStatementName() : statementNameFromAnnotation.Trim();
var statementRawInfo = new StatementRawInfo(
0,
statementName,
annotations,
statementType.Value,
contextDescriptor,
null,
compilable,
null);
StatementSpecCompiledDesc compiledDesc = StatementRawCompiler.Compile(
raw,
compilable,
false,
true,
annotations,
visitor.Subselects,
new List<ExprTableAccessNode>(raw.TableExpressions),
statementRawInfo,
compileTimeServices);
StatementSpecCompiled specCompiled = compiledDesc.Compiled;
var fafSpec = specCompiled.Raw.FireAndForgetSpec;
//var @namespace = "generated";
var classPostfix = IdentifierUtil.GetIdentifierMayStartNumeric(statementName);
EPCompiledManifest manifest;
Assembly assembly;
FAFQueryMethodForge query;
if (specCompiled.Raw.InsertIntoDesc != null) {
query = new FAFQueryMethodIUDInsertIntoForge(
specCompiled,
compilable,
statementRawInfo,
compileTimeServices);
}
else if (fafSpec == null) { // null indicates a select-statement, same as continuous query
var desc = new FAFQueryMethodSelectDesc(
specCompiled,
compilable,
statementRawInfo,
compileTimeServices);
var classNameResultSetProcessor =
CodeGenerationIDGenerator.GenerateClassNameSimple(
typeof(ResultSetProcessorFactoryProvider),
classPostfix);
query = new FAFQueryMethodSelectForge(desc, classNameResultSetProcessor, statementRawInfo);
}
else if (fafSpec is FireAndForgetSpecDelete) {
query = new FAFQueryMethodIUDDeleteForge(
specCompiled,
compilable,
statementRawInfo,
compileTimeServices);
}
else if (fafSpec is FireAndForgetSpecUpdate) {
query = new FAFQueryMethodIUDUpdateForge(
specCompiled,
compilable,
statementRawInfo,
compileTimeServices);
}
else {
throw new IllegalStateException("Unrecognized FAF code " + fafSpec);
}
// verify substitution parameters
VerifySubstitutionParams(raw.SubstitutionParameters);
try {
manifest = CompileToAssembly(query, classPostfix, args.Options, services, out assembly);
}
catch (EPCompileException) {
throw;
}
catch (Exception ex) {
throw new EPCompileException(
"Unexpected exception compiling module: " + ex.Message,
ex,
new EmptyList<EPCompileExceptionItem>());
}
return new EPCompiled(new [] { assembly }, manifest);
}
