private void validate(
VDBMetaData vdb,
ModelMetaData model,
AbstractMetadataRecord record,
ValidatorReport report,
IQueryMetadataInterface metadata,
MetadataFactory mf) {
ValidatorReport resolverReport = null;
try {
if (record instanceof Procedure) {
Procedure p = (Procedure) record;
Command command = queryParser.parseProcedure(p.getQueryPlan(), false);
GroupSymbol gs = createASTNode(ASTNodes.GROUP_SYMBOL);
gs.setName(p.getFullName());
QueryResolver resolver = new QueryResolver(queryParser);
resolver.resolveCommand(command, gs, ICommand.TYPE_STORED_PROCEDURE, metadata, false);
Validator validator = new Validator();
resolverReport = validator.validate(command, metadata);
determineDependencies(p, command);
} else if (record instanceof Table) {
Table t = (Table) record;
GroupSymbol symbol = createASTNode(ASTNodes.GROUP_SYMBOL);
symbol.setName(t.getFullName());
ResolverUtil.resolveGroup(symbol, metadata);
String selectTransformation = t.getSelectTransformation();
boolean columnsIsEmpty = t.getColumns() == null || t.getColumns().isEmpty();
// Consider columns if teid 8.11 or lower
boolean considerColumns_811 =
isTeiidOrGreater(Version.TEIID_8_12_4) ? true : columnsIsEmpty;
// Consider columns if teiid 8.12.4+
boolean considerColumns_8124 =
isTeiidOrGreater(Version.TEIID_8_12_4) ? columnsIsEmpty : true;
if (t.isVirtual() && considerColumns_811) {
QueryCommand command = (QueryCommand) queryParser.parseCommand(selectTransformation);
QueryResolver resolver = new QueryResolver(queryParser);
resolver.resolveCommand(command, metadata);
Validator validator = new Validator();
resolverReport = validator.validate(command, metadata);
if (!resolverReport.hasItems() && considerColumns_8124) {
List<Expression> symbols = command.getProjectedSymbols();
for (Expression column : symbols) {
try {
addColumn(Symbol.getShortName(column), column.getType(), t, mf);
} catch (Exception e) {
log(report, model, e.getMessage());
}
}
}
if (considerColumns_8124) {
determineDependencies(t, command);
if (t.getInsertPlan() != null && t.isInsertPlanEnabled()) {
validateUpdatePlan(
model, report, metadata, t, t.getInsertPlan(), Command.TYPE_INSERT);
}
if (t.getUpdatePlan() != null && t.isUpdatePlanEnabled()) {
validateUpdatePlan(
model, report, metadata, t, t.getUpdatePlan(), Command.TYPE_UPDATE);
}
if (t.getDeletePlan() != null && t.isDeletePlanEnabled()) {
validateUpdatePlan(
model, report, metadata, t, t.getDeletePlan(), Command.TYPE_DELETE);
}
}
}
boolean addCacheHint = false;
if (t.isMaterialized() && t.getMaterializedTable() == null) {
List<KeyRecord> fbis = t.getFunctionBasedIndexes();
List<GroupSymbol> groups = Arrays.asList(symbol);
if (fbis != null && !fbis.isEmpty()) {
for (KeyRecord fbi : fbis) {
for (int j = 0; j < fbi.getColumns().size(); j++) {
Column c = fbi.getColumns().get(j);
if (c.getParent() != fbi) {
continue;
}
String exprString = c.getNameInSource();
try {
Expression ex = queryParser.parseExpression(exprString);
ResolverVisitor resolverVisitor = new ResolverVisitor(teiidVersion);
resolverVisitor.resolveLanguageObject(ex, groups, metadata);
if (!ValueIteratorProviderCollectorVisitor.getValueIteratorProviders(ex)
.isEmpty()) {
log(
report,
model,
Messages.gs(Messages.TEIID.TEIID31114, exprString, fbi.getFullName()));
}
EvaluatableVisitor ev = new EvaluatableVisitor(teiidVersion);
PreOrPostOrderNavigator.doVisit(ex, ev, PostOrderNavigator.PRE_ORDER);
if (ev.getDeterminismLevel().compareTo(Determinism.VDB_DETERMINISTIC) < 0) {
log(
report,
model,
Messages.gs(Messages.TEIID.TEIID31115, exprString, fbi.getFullName()));
}
} catch (QueryResolverException e) {
log(
report,
model,
Messages.gs(
Messages.TEIID.TEIID31116,
exprString,
fbi.getFullName(),
e.getMessage()));
}
}
}
}
} else {
addCacheHint = true;
}
// this seems to parse, resolve and validate.
QueryResolver resolver = new QueryResolver(queryParser);
QueryNode node =
resolver.resolveView(
symbol,
new QueryNode(t.getSelectTransformation()),
SQLConstants.Reserved.SELECT,
metadata);
CacheHint cacheHint = node.getCommand().getCacheHint();
Long ttl = -1L;
if (cacheHint != null
&& cacheHint.getTtl() != null
&& addCacheHint
&& t.getProperty(MATVIEW_TTL, false) == null) {
ttl = cacheHint.getTtl();
t.setProperty(MATVIEW_TTL, String.valueOf(ttl));
}
}
if (resolverReport != null && resolverReport.hasItems()) {
for (ValidatorFailure v : resolverReport.getItems()) {
log(
report,
model,
v.getStatus() == IValidatorFailure.VFStatus.ERROR ? Severity.ERROR : Severity.WARNING,
v.getMessage());
}
}
processReport(model, record, report, resolverReport);
} catch (Exception e) {
log(
report,
model,
Messages.gs(Messages.TEIID.TEIID31080, record.getFullName(), e.getMessage()));
}
}
/**
* Helper to quickly get the ValueIteratorProvider instances from obj
*
* @param obj Language object
* @return java.util.ArrayList of found ValueIteratorProvider
*/
public static final List<SubqueryContainer<?>> getValueIteratorProviders(LanguageObject obj) {
ValueIteratorProviderCollectorVisitor visitor = new ValueIteratorProviderCollectorVisitor();
PreOrderNavigator.doVisit(obj, visitor);
return visitor.getValueIteratorProviders();
}
private void resolveStatement(
CreateProcedureCommand command,
Statement statement,
GroupContext externalGroups,
GroupSymbol variables,
TempMetadataAdapter metadata)
throws QueryResolverException, QueryMetadataException, TeiidComponentException {
LogManager.logTrace(
org.teiid.logging.LogConstants.CTX_QUERY_RESOLVER,
new Object[] {"Resolving statement", statement}); // $NON-NLS-1$
switch (statement.getType()) {
case Statement.TYPE_IF:
IfStatement ifStmt = (IfStatement) statement;
Criteria ifCrit = ifStmt.getCondition();
for (SubqueryContainer container :
ValueIteratorProviderCollectorVisitor.getValueIteratorProviders(ifCrit)) {
resolveEmbeddedCommand(metadata, externalGroups, container.getCommand());
}
ResolverVisitor.resolveLanguageObject(ifCrit, null, externalGroups, metadata);
resolveBlock(command, ifStmt.getIfBlock(), externalGroups, metadata);
if (ifStmt.hasElseBlock()) {
resolveBlock(command, ifStmt.getElseBlock(), externalGroups, metadata);
}
break;
case Statement.TYPE_COMMAND:
CommandStatement cmdStmt = (CommandStatement) statement;
Command subCommand = cmdStmt.getCommand();
TempMetadataStore discoveredMetadata =
resolveEmbeddedCommand(metadata, externalGroups, subCommand);
if (subCommand instanceof StoredProcedure) {
StoredProcedure sp = (StoredProcedure) subCommand;
for (SPParameter param : sp.getParameters()) {
switch (param.getParameterType()) {
case ParameterInfo.OUT:
case ParameterInfo.RETURN_VALUE:
if (param.getExpression() != null && !isAssignable(metadata, param)) {
throw new QueryResolverException(
QueryPlugin.Event.TEIID30121,
QueryPlugin.Util.gs(QueryPlugin.Event.TEIID30121, param.getExpression()));
}
sp.setCallableStatement(true);
break;
case ParameterInfo.INOUT:
if (!isAssignable(metadata, param)) {
continue;
}
sp.setCallableStatement(true);
break;
}
}
}
if (discoveredMetadata != null) {
metadata.getMetadataStore().getData().putAll(discoveredMetadata.getData());
}
// dynamic commands need to be updated as to their implicitly expected projected symbols
if (subCommand instanceof DynamicCommand) {
DynamicCommand dynCommand = (DynamicCommand) subCommand;
if (dynCommand.getIntoGroup() == null && !dynCommand.isAsClauseSet()) {
if ((command.getResultSetColumns() != null && command.getResultSetColumns().isEmpty())
|| !cmdStmt.isReturnable()
|| command.getResultSetColumns() == null) {
// we're not interested in the resultset
dynCommand.setAsColumns(Collections.EMPTY_LIST);
} else {
// should match the procedure
dynCommand.setAsColumns(command.getResultSetColumns());
}
}
}
if (command.getResultSetColumns() == null
&& cmdStmt.isReturnable()
&& subCommand.returnsResultSet()
&& subCommand.getResultSetColumns() != null
&& !subCommand.getResultSetColumns().isEmpty()) {
command.setResultSetColumns(subCommand.getResultSetColumns());
if (command.getProjectedSymbols().isEmpty()) {
command.setProjectedSymbols(subCommand.getResultSetColumns());
}
}
break;
case Statement.TYPE_ERROR:
case Statement.TYPE_ASSIGNMENT:
case Statement.TYPE_DECLARE:
case Statement.TYPE_RETURN:
ExpressionStatement exprStmt = (ExpressionStatement) statement;
// first resolve the value. this ensures the value cannot use the variable being defined
if (exprStmt.getExpression() != null) {
Expression expr = exprStmt.getExpression();
for (SubqueryContainer container :
ValueIteratorProviderCollectorVisitor.getValueIteratorProviders(expr)) {
resolveEmbeddedCommand(metadata, externalGroups, container.getCommand());
}
ResolverVisitor.resolveLanguageObject(expr, null, externalGroups, metadata);
}
// second resolve the variable
switch (statement.getType()) {
case Statement.TYPE_DECLARE:
collectDeclareVariable(
(DeclareStatement) statement, variables, metadata, externalGroups);
break;
case Statement.TYPE_ASSIGNMENT:
AssignmentStatement assStmt = (AssignmentStatement) statement;
ResolverVisitor.resolveLanguageObject(
assStmt.getVariable(), null, externalGroups, metadata);
if (!metadata.elementSupports(
assStmt.getVariable().getMetadataID(), SupportConstants.Element.UPDATE)) {
throw new QueryResolverException(
QueryPlugin.Event.TEIID30121,
QueryPlugin.Util.gs(QueryPlugin.Event.TEIID30121, assStmt.getVariable()));
}
// don't allow variable assignments to be external
assStmt.getVariable().setIsExternalReference(false);
break;
case Statement.TYPE_RETURN:
ReturnStatement rs = (ReturnStatement) statement;
if (rs.getExpression() != null) {
if (command.getReturnVariable() == null) {
throw new QueryResolverException(
QueryPlugin.Event.TEIID31125,
QueryPlugin.Util.gs(QueryPlugin.Event.TEIID31125, rs));
}
rs.setVariable(command.getReturnVariable().clone());
}
// else - we don't currently require the use of return for backwards compatibility
break;
}
// third ensure the type matches
if (exprStmt.getExpression() != null) {
Class<?> varType = exprStmt.getExpectedType();
Class<?> exprType = exprStmt.getExpression().getType();
if (exprType == null) {
throw new QueryResolverException(
QueryPlugin.Event.TEIID30123, QueryPlugin.Util.gs(QueryPlugin.Event.TEIID30123));
}
String varTypeName = DataTypeManager.getDataTypeName(varType);
exprStmt.setExpression(
ResolverUtil.convertExpression(exprStmt.getExpression(), varTypeName, metadata));
if (statement.getType() == Statement.TYPE_ERROR) {
ResolverVisitor.checkException(exprStmt.getExpression());
}
}
break;
case Statement.TYPE_WHILE:
WhileStatement whileStmt = (WhileStatement) statement;
Criteria whileCrit = whileStmt.getCondition();
for (SubqueryContainer container :
ValueIteratorProviderCollectorVisitor.getValueIteratorProviders(whileCrit)) {
resolveEmbeddedCommand(metadata, externalGroups, container.getCommand());
}
ResolverVisitor.resolveLanguageObject(whileCrit, null, externalGroups, metadata);
resolveBlock(command, whileStmt.getBlock(), externalGroups, metadata);
break;
case Statement.TYPE_LOOP:
LoopStatement loopStmt = (LoopStatement) statement;
String groupName = loopStmt.getCursorName();
isValidGroup(metadata, groupName);
Command cmd = loopStmt.getCommand();
resolveEmbeddedCommand(metadata, externalGroups, cmd);
List<Expression> symbols = cmd.getProjectedSymbols();
// add the loop cursor group into its own context
TempMetadataStore store = metadata.getMetadataStore().clone();
metadata = new TempMetadataAdapter(metadata.getMetadata(), store);
externalGroups = new GroupContext(externalGroups, null);
ProcedureContainerResolver.addScalarGroup(groupName, store, externalGroups, symbols, false);
resolveBlock(command, loopStmt.getBlock(), externalGroups, metadata);
break;
case Statement.TYPE_COMPOUND:
resolveBlock(command, (Block) statement, externalGroups, metadata);
break;
}
}
