@Override
protected boolean checkLocal() {
TypeNode targetType = targetExpr.getType();
if (!(targetType instanceof MapTypeNode)) {
targetExpr.reportError("This argument to map range expression must be of type map<S,T>");
return false;
}
return true;
}
@Override
public String generateXML() {
return "\\ingest{"
+ identifier.generateXML()
+ ","
+ threshold.generateXML()
+ ","
+ rate.generateXML()
+ "}";
}
@Override
public String generateLatex() {
String id = "???";
if (identifier != null) id = identifier.generateLatex();
String thresh = "???";
if (threshold != null) thresh = threshold.generateLatex();
String rp = "???";
if (rate != null) rp = rate.generateLatex();
return " ingest(" + id + "," + thresh + " , " + rp + ")";
}
@Override
public String generateXML() {
String op = "";
switch (prim) {
case MAX:
op = "max";
break;
case MIN:
op = "min";
break;
}
return "\\" + op + "{" + lExpr.generateXML() + "," + rExpr.generateXML() + "}";
}
/**
* Determine the operator that will be used with this operator node. The method gets the operand
* types of this node and determines the operator, that will need the least implicit type casts
* using the operands' types (this is done via {@link Operator#getNearest(int, TypeNode[])}). If
* no such operator is found, an error message is reported.
*
* @return The proper operator for this node, <code>null</code> otherwise.
*/
private OperatorSignature computeOperator() {
OperatorSignature operator = null;
int n = children.size();
TypeNode[] argTypes = new TypeNode[n];
for (int i = 0; i < n; i++) {
ExprNode op = children.get(i);
TypeNode type = op.getType();
if (type instanceof NodeTypeNode || type instanceof EdgeTypeNode)
type = OperatorSignature.TYPE;
if (type instanceof ExternalTypeNode && argTypes.length < 3) // keep real ext type for cond
type = OperatorSignature.TYPE;
if (type instanceof ByteTypeNode || type instanceof ShortTypeNode)
if (n < 3) type = BasicTypeNode.intType;
argTypes[i] = type;
}
operator = OperatorSignature.getNearest(opId, argTypes);
if (!operator.isValid()) {
StringBuffer params = new StringBuffer();
boolean errorReported = false;
params.append('(');
for (int i = 0; i < n; i++) {
if (argTypes[i].isEqual(BasicTypeNode.errorType)) {
errorReported = true;
} else {
params.append((i > 0 ? ", " : "") + argTypes[i].toString());
}
}
params.append(')');
if (!errorReported) {
reportError("No such operator " + OperatorSignature.getName(opId) + params);
}
} else {
// Insert implicit type casts for the arguments that need them.
TypeNode[] opTypes = operator.getOperandTypes();
assert (opTypes.length == argTypes.length);
for (int i = 0; i < argTypes.length; i++) {
if (!argTypes[i].isEqual(opTypes[i])) {
ExprNode child = children.get(i);
ExprNode adjusted = child.adjustType(opTypes[i]);
becomeParent(adjusted);
children.set(i, adjusted);
}
}
}
return operator;
}
@Override
public void check(Catagory enclosingCategory, ConstructedASTree enclosingTree) {
// TODO this might be able to take variety arguments, :/
lExpr.check(enclosingCategory, enclosingTree);
rExpr.check(enclosingCategory, enclosingTree);
AmbientVariableTables varTables = AmbientVariableTables.getTables();
Type floatType = (Type) varTables.checkTypeTable("$float");
if (lExpr.getExprType() != floatType) {
enclosingTree.addSemanticException(
new SemanticCheckException("First argument does not evaluate to a float", line_number));
return;
}
if (rExpr.getExprType() != floatType) {
enclosingTree.addSemanticException(
new SemanticCheckException("Second argument does not evalute to a float", line_number));
return;
}
setExprType(floatType);
if (!UnitChecker.getUnitChecker().CheckUnitCompatability(rExpr.getUnits(), lExpr.getUnits())) {
enclosingTree.addWarning("Comparison of two different unit types on line " + line_number);
this.units = UnitChecker.null_collection;
} else {
this.units = UnitChecker.getUnitChecker().add_units(rExpr.getUnits(), lExpr.getUnits());
}
}
/**
* Check the types of this cast. Check if the expression can be casted to the given type.
*
* @see de.unika.ipd.grgen.ast.BaseNode#typeCheckLocal()
*/
private boolean typeCheckLocal() {
TypeNode fromType = expr.getType();
if (fromType instanceof NodeTypeNode && type instanceof NodeTypeNode) {
// we support up- and down-casts, but no cross-casts of nodes
HashSet<TypeNode> supertypesOfFrom = new HashSet<TypeNode>();
((NodeTypeNode) fromType).doGetCompatibleToTypes(supertypesOfFrom);
HashSet<TypeNode> supertypesOfTo = new HashSet<TypeNode>();
((NodeTypeNode) type).doGetCompatibleToTypes(supertypesOfTo);
return fromType.equals(type)
|| supertypesOfFrom.contains(type)
|| supertypesOfTo.contains(fromType);
}
if (fromType instanceof EdgeTypeNode && type instanceof EdgeTypeNode) {
// we support up- and down-casts, but no cross-casts of edges
HashSet<TypeNode> supertypesOfFrom = new HashSet<TypeNode>();
((EdgeTypeNode) fromType).doGetCompatibleToTypes(supertypesOfFrom);
HashSet<TypeNode> supertypesOfTo = new HashSet<TypeNode>();
((EdgeTypeNode) type).doGetCompatibleToTypes(supertypesOfTo);
return fromType.equals(type)
|| supertypesOfFrom.contains(type)
|| supertypesOfTo.contains(fromType);
}
if (fromType instanceof ObjectTypeNode
&& !(type instanceof NodeTypeNode)
&& !(type instanceof EdgeTypeNode))
return true; // object is castable to anything besides nodes and edges
if (type instanceof ObjectTypeNode
&& !(fromType instanceof NodeTypeNode)
&& !(fromType instanceof EdgeTypeNode))
return true; // anything besides nodes and edges can be casted into an object
if (fromType instanceof ExternalTypeNode && type instanceof ExternalTypeNode) {
// we support up- and down-casts, but no cross-casts of external types
HashSet<TypeNode> supertypesOfFrom = new HashSet<TypeNode>();
((ExternalTypeNode) fromType).doGetCompatibleToTypes(supertypesOfFrom);
HashSet<TypeNode> supertypesOfTo = new HashSet<TypeNode>();
((ExternalTypeNode) type).doGetCompatibleToTypes(supertypesOfTo);
return fromType.equals(type)
|| supertypesOfFrom.contains(type)
|| supertypesOfTo.contains(fromType);
}
boolean result = fromType.isCastableTo(type);
if (!result) {
reportError("Illegal cast from \"" + expr.getType() + "\" to \"" + type + "\"");
}
return result;
}
/**
* Tries to simplify this node by simplifying the target expression and, if the expression is a
* constant, applying the cast.
*
* @return The possibly simplified value of the expression.
*/
@Override
public ExprNode evaluate() {
assert isResolved();
expr = expr.evaluate();
return expr instanceof ConstNode ? ((ConstNode) expr).castTo(type) : this;
}
public String display() {
StringBuilder str = new StringBuilder();
str.append("|-HD\r\n");
str.append(this.format(expr.display()));
return str.toString();
}
@Override
public void check() throws SemanticCheckException {
Catagory cata = getCatagory();
if (cata instanceof Chemical) {
throw new SemanticCheckException(
"Special functions cannot be called within chemical equations");
}
VarietyConcentration foodSet = cata.checkVarietyConcTable(identifier.getName());
if (foodSet == null) {
throw new SemanticCheckException(identifier.getName() + " is not a known food set");
}
threshold.check();
rate.check();
// TODO: Check that if things are varieties that they link back to appropriate food set
}
@Override
public String generateLatex() {
String op = "???";
String left = "???";
if (lExpr != null) left = lExpr.generateLatex();
String right = "???";
if (rExpr != null) right = rExpr.generateLatex();
switch (prim) {
case MAX:
op = " max ";
break;
case MIN:
op = " min ";
break;
}
return op + "(" + left + "," + right + ")";
}
/** @see de.unika.ipd.grgen.ast.BaseNode#checkLocal() */
@Override
protected boolean checkLocal() {
if (!(nodeType.getType() instanceof NodeTypeNode)) {
reportError("argument of nodes(.) must be a node type");
return false;
}
return true;
}
@Override
public String toSourceString() {
StringBuilder sourceSb = new StringBuilder();
sourceSb.append('[');
boolean isFirst = true;
for (ExprNode child : getChildren()) {
if (isFirst) {
isFirst = false;
} else {
sourceSb.append(", ");
}
sourceSb.append(child.toSourceString());
}
sourceSb.append(']');
return sourceSb.toString();
}
/**
* Helper for getOperandProtectedForLowerPrec() and getOperandProtectedForLowerOrEqualPrec().
*
* @param index The index of the operand to get.
* @param shouldProtectEqualPrec Whether to proect the operand if it is an operator with equal
* precedence to this operator.
* @return The source string for the operand at the given index, possibly protected by surrounding
* parentheses.
*/
private String getOperandProtectedForPrecHelper(int index, boolean shouldProtectEqualPrec) {
int thisOpPrec = this.getOperator().getPrecedence();
ExprNode child = getChild(index);
boolean shouldProtect;
if (child instanceof OperatorNode) {
int childOpPrec = ((OperatorNode) child).getOperator().getPrecedence();
shouldProtect = shouldProtectEqualPrec ? childOpPrec <= thisOpPrec : childOpPrec < thisOpPrec;
} else {
shouldProtect = false;
}
if (shouldProtect) {
return "(" + child.toSourceString() + ")";
} else {
return child.toSourceString();
}
}
public Location location() {
return cond.location();
}
public Type type() {
return thenExpr.type();
}
// $ANTLR start "propertyExpr"
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:67:1: propertyExpr returns [ExprNode result] :
// (id= ID (acc= accessor )? (prop= propertyExpr )? ) ;
public final ExprNode propertyExpr() throws RecognitionException {
ExprNode result = null;
CommonTree id = null;
ExprNode acc = null;
ExprNode prop = null;
try {
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:67:39: ( (id= ID (acc= accessor )? (prop=
// propertyExpr )? ) )
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:68:2: (id= ID (acc= accessor )? (prop=
// propertyExpr )? )
{
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:68:2: (id= ID (acc= accessor )? (prop=
// propertyExpr )? )
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:68:2: id= ID (acc= accessor )? (prop=
// propertyExpr )?
{
id = (CommonTree) match(input, ID, FOLLOW_ID_in_propertyExpr246);
if (state.failed) return result;
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:68:11: (acc= accessor )?
int alt7 = 2;
switch (input.LA(1)) {
case NUMBER:
case STRING:
{
alt7 = 1;
}
break;
}
switch (alt7) {
case 1:
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:68:11: acc= accessor
{
pushFollow(FOLLOW_accessor_in_propertyExpr250);
acc = accessor();
state._fsp--;
if (state.failed) return result;
}
break;
}
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:68:26: (prop= propertyExpr )?
int alt8 = 2;
switch (input.LA(1)) {
case ID:
{
alt8 = 1;
}
break;
}
switch (alt8) {
case 1:
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:68:26: prop= propertyExpr
{
pushFollow(FOLLOW_propertyExpr_in_propertyExpr255);
prop = propertyExpr();
state._fsp--;
if (state.failed) return result;
}
break;
}
}
if (state.backtracking == 0) {
result = new IdentifierNode(id.getText());
ExprNode cur = result;
if (acc != null) {
result.getChildren().add(acc);
cur = acc;
}
if (prop != null) {
cur.getChildren().add(prop);
}
}
}
} catch (RecognitionException re) {
reportError(re);
recover(input, re);
} finally {
// do for sure before leaving
}
return result;
}
// $ANTLR start "objExpr"
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:56:1: objExpr returns [ExprNode result] : (
// (loc= LOCATOR )? prop= propertyExpr ) ;
public final ExprNode objExpr() throws RecognitionException {
ExprNode result = null;
CommonTree loc = null;
ExprNode prop = null;
try {
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:56:34: ( ( (loc= LOCATOR )? prop=
// propertyExpr ) )
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:57:2: ( (loc= LOCATOR )? prop= propertyExpr
// )
{
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:57:2: ( (loc= LOCATOR )? prop=
// propertyExpr )
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:57:2: (loc= LOCATOR )? prop= propertyExpr
{
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:57:5: (loc= LOCATOR )?
int alt6 = 2;
switch (input.LA(1)) {
case LOCATOR:
{
alt6 = 1;
}
break;
}
switch (alt6) {
case 1:
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:57:5: loc= LOCATOR
{
loc = (CommonTree) match(input, LOCATOR, FOLLOW_LOCATOR_in_objExpr223);
if (state.failed) return result;
}
break;
}
pushFollow(FOLLOW_propertyExpr_in_objExpr228);
prop = propertyExpr();
state._fsp--;
if (state.failed) return result;
}
if (state.backtracking == 0) {
result = prop;
if (loc != null) {
result = new ContextNode();
result.getChildren().add(prop);
} else {
result = prop;
}
}
}
} catch (RecognitionException re) {
reportError(re);
recover(input, re);
} finally {
// do for sure before leaving
}
return result;
}
// $ANTLR start "expr1"
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:42:1: expr1 returns [ExprNode result] : (left=
// atom (op= op2 right= atom )* ) ;
public final ExprNode expr1() throws RecognitionException {
ExprNode result = null;
ExprNode left = null;
ExprNode op = null;
ExprNode right = null;
try {
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:42:32: ( (left= atom (op= op2 right= atom
// )* ) )
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:43:2: (left= atom (op= op2 right= atom )* )
{
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:43:2: (left= atom (op= op2 right= atom )*
// )
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:43:2: left= atom (op= op2 right= atom )*
{
pushFollow(FOLLOW_atom_in_expr1106);
left = atom();
state._fsp--;
if (state.failed) return result;
if (state.backtracking == 0) {
result = left;
}
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:43:30: (op= op2 right= atom )*
loop2:
do {
int alt2 = 2;
switch (input.LA(1)) {
case OP_ADD:
case OP_SUB:
{
alt2 = 1;
}
break;
}
switch (alt2) {
case 1:
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:43:31: op= op2 right= atom
{
pushFollow(FOLLOW_op2_in_expr1113);
op = op2();
state._fsp--;
if (state.failed) return result;
pushFollow(FOLLOW_atom_in_expr1117);
right = atom();
state._fsp--;
if (state.failed) return result;
if (state.backtracking == 0) {
op.getChildren().add(result);
op.getChildren().add(right);
result = op;
}
}
break;
default:
break loop2;
}
} while (true);
}
}
} catch (RecognitionException re) {
reportError(re);
recover(input, re);
} finally {
// do for sure before leaving
}
return result;
}
// $ANTLR start "expr"
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:39:1: expr returns [ExprNode result] : (left=
// expr1 (op= op1 right= expr1 )* ) ;
public final ExprNode expr() throws RecognitionException {
ExprNode result = null;
ExprNode left = null;
ExprNode op = null;
ExprNode right = null;
try {
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:39:31: ( (left= expr1 (op= op1 right= expr1
// )* ) )
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:40:2: (left= expr1 (op= op1 right= expr1 )*
// )
{
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:40:2: (left= expr1 (op= op1 right= expr1
// )* )
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:40:2: left= expr1 (op= op1 right= expr1
// )*
{
pushFollow(FOLLOW_expr1_in_expr76);
left = expr1();
state._fsp--;
if (state.failed) return result;
if (state.backtracking == 0) {
result = left;
}
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:40:31: (op= op1 right= expr1 )*
loop1:
do {
int alt1 = 2;
switch (input.LA(1)) {
case OP_DIV:
case OP_MUL:
{
alt1 = 1;
}
break;
}
switch (alt1) {
case 1:
// nu/cotentin/parsing/cotentinel/CotentinELTree.g:40:32: op= op1 right= expr1
{
pushFollow(FOLLOW_op1_in_expr83);
op = op1();
state._fsp--;
if (state.failed) return result;
pushFollow(FOLLOW_expr1_in_expr87);
right = expr1();
state._fsp--;
if (state.failed) return result;
if (state.backtracking == 0) {
op.getChildren().add(result);
op.getChildren().add(right);
result = op;
}
}
break;
default:
break loop1;
}
} while (true);
}
}
} catch (RecognitionException re) {
reportError(re);
recover(input, re);
} finally {
// do for sure before leaving
}
return result;
}
@Override
protected IR constructIR() {
return new MapRangeExpr(targetExpr.checkIR(Expression.class), getType().getType());
}
@Override
public TypeNode getType() {
return SetTypeNode.getSetType(((MapTypeNode) targetExpr.getType()).valueTypeUnresolved);
}
private static Object coerceProperty(
String propertyName,
Class containingType,
Object value,
Class type,
EngineImportService engineImportService,
boolean forceNumeric)
throws ExprValidationException {
if (value instanceof ExprNode && type != ExprNode.class) {
if (value instanceof ExprIdentNode) {
ExprIdentNode identNode = (ExprIdentNode) value;
Property prop;
try {
prop = PropertyParser.parse(identNode.getFullUnresolvedName(), false);
} catch (Exception ex) {
throw new ExprValidationException(
"Failed to parse property '" + identNode.getFullUnresolvedName() + "'");
}
if (!(prop instanceof MappedProperty)) {
throw new ExprValidationException(
"Unrecognized property '" + identNode.getFullUnresolvedName() + "'");
}
MappedProperty mappedProperty = (MappedProperty) prop;
if (mappedProperty.getPropertyNameAtomic().toLowerCase().equals(SYSTEM_PROPETIES_NAME)) {
return System.getProperty(mappedProperty.getKey());
}
} else {
ExprNode exprNode = (ExprNode) value;
ExprEvaluator evaluator = exprNode.getExprEvaluator();
if (evaluator == null) {
throw new ExprValidationException(
"Failed to evaluate expression '" + exprNode.toExpressionString() + "'");
}
value = evaluator.evaluate(null, true, null);
}
}
if (value == null) {
return null;
}
if (value.getClass() == type) {
return value;
}
if (JavaClassHelper.isAssignmentCompatible(value.getClass(), type)) {
if (forceNumeric
&& JavaClassHelper.getBoxedType(value.getClass()) != JavaClassHelper.getBoxedType(type)
&& JavaClassHelper.isNumeric(type)
&& JavaClassHelper.isNumeric(value.getClass())) {
value = JavaClassHelper.coerceBoxed((Number) value, JavaClassHelper.getBoxedType(type));
}
return value;
}
if (JavaClassHelper.isSubclassOrImplementsInterface(value.getClass(), type)) {
return value;
}
if (type.isArray()) {
if (!(value instanceof Collection)) {
throw new ExprValidationException(
"Property '"
+ propertyName
+ "' of class "
+ JavaClassHelper.getClassNameFullyQualPretty(containingType)
+ " expects an array but receives a value of type "
+ value.getClass().getName());
}
Object[] items = ((Collection) value).toArray();
Object coercedArray = Array.newInstance(type.getComponentType(), items.length);
for (int i = 0; i < items.length; i++) {
Object coercedValue =
coerceProperty(
propertyName + " (array element)",
type,
items[i],
type.getComponentType(),
engineImportService,
false);
Array.set(coercedArray, i, coercedValue);
}
return coercedArray;
}
if (!(value instanceof Map)) {
throw new ExprValidationException(
"Property '"
+ propertyName
+ "' of class "
+ JavaClassHelper.getClassNameFullyQualPretty(containingType)
+ " expects an "
+ JavaClassHelper.getClassNameFullyQualPretty(type)
+ " but receives a value of type "
+ value.getClass().getName());
}
Map<String, Object> props = (Map<String, Object>) value;
return instantiatePopulateObject(props, type, engineImportService);
}
private static void recursiveCompile(
EvalNode evalNode,
StatementContext context,
Set<String> eventTypeReferences,
boolean isInsertInto,
MatchEventSpec tags,
Deque<Integer> subexpressionIdStack)
throws ExprValidationException {
int counter = 0;
for (EvalNode child : evalNode.getChildNodes()) {
subexpressionIdStack.addLast(counter++);
recursiveCompile(
child, context, eventTypeReferences, isInsertInto, tags, subexpressionIdStack);
subexpressionIdStack.removeLast();
}
LinkedHashMap<String, Pair<EventType, String>> newTaggedEventTypes = null;
LinkedHashMap<String, Pair<EventType, String>> newArrayEventTypes = null;
if (evalNode instanceof EvalFilterNode) {
EvalFilterNode filterNode = (EvalFilterNode) evalNode;
String eventName = filterNode.getRawFilterSpec().getEventTypeName();
EventType resolvedEventType =
FilterStreamSpecRaw.resolveType(
context.getEngineURI(),
eventName,
context.getEventAdapterService(),
context.getPlugInTypeResolutionURIs());
EventType finalEventType = resolvedEventType;
String optionalTag = filterNode.getEventAsName();
boolean isPropertyEvaluation = false;
// obtain property event type, if final event type is properties
if (filterNode.getRawFilterSpec().getOptionalPropertyEvalSpec() != null) {
PropertyEvaluator optionalPropertyEvaluator =
PropertyEvaluatorFactory.makeEvaluator(
filterNode.getRawFilterSpec().getOptionalPropertyEvalSpec(),
resolvedEventType,
filterNode.getEventAsName(),
context.getEventAdapterService(),
context.getMethodResolutionService(),
context.getSchedulingService(),
context.getVariableService(),
context.getEngineURI(),
context.getStatementId(),
context.getStatementName(),
context.getAnnotations(),
subexpressionIdStack);
finalEventType = optionalPropertyEvaluator.getFragmentEventType();
isPropertyEvaluation = true;
}
if (finalEventType instanceof EventTypeSPI) {
eventTypeReferences.add(((EventTypeSPI) finalEventType).getMetadata().getPrimaryName());
}
// If a tag was supplied for the type, the tags must stay with this type, i.e. a=BeanA ->
// b=BeanA -> a=BeanB is a no
if (optionalTag != null) {
Pair<EventType, String> pair = tags.getTaggedEventTypes().get(optionalTag);
EventType existingType = null;
if (pair != null) {
existingType = pair.getFirst();
}
if (existingType == null) {
pair = tags.getArrayEventTypes().get(optionalTag);
if (pair != null) {
throw new ExprValidationException(
"Tag '"
+ optionalTag
+ "' for event '"
+ eventName
+ "' used in the repeat-until operator cannot also appear in other filter expressions");
}
}
if ((existingType != null) && (existingType != finalEventType)) {
throw new ExprValidationException(
"Tag '"
+ optionalTag
+ "' for event '"
+ eventName
+ "' has already been declared for events of type "
+ existingType.getUnderlyingType().getName());
}
pair = new Pair<EventType, String>(finalEventType, eventName);
// add tagged type
if (isPropertyEvaluation) {
newArrayEventTypes = new LinkedHashMap<String, Pair<EventType, String>>();
newArrayEventTypes.put(optionalTag, pair);
} else {
newTaggedEventTypes = new LinkedHashMap<String, Pair<EventType, String>>();
newTaggedEventTypes.put(optionalTag, pair);
}
}
// For this filter, filter types are all known tags at this time,
// and additionally stream 0 (self) is our event type.
// Stream type service allows resolution by property name event if that name appears in other
// tags.
// by defaulting to stream zero.
// Stream zero is always the current event type, all others follow the order of the map
// (stream 1 to N).
String selfStreamName = optionalTag;
if (selfStreamName == null) {
selfStreamName = "s_" + UuidGenerator.generate();
}
LinkedHashMap<String, Pair<EventType, String>> filterTypes =
new LinkedHashMap<String, Pair<EventType, String>>();
Pair<EventType, String> typePair = new Pair<EventType, String>(finalEventType, eventName);
filterTypes.put(selfStreamName, typePair);
filterTypes.putAll(tags.getTaggedEventTypes());
// for the filter, specify all tags used
LinkedHashMap<String, Pair<EventType, String>> filterTaggedEventTypes =
new LinkedHashMap<String, Pair<EventType, String>>(tags.getTaggedEventTypes());
filterTaggedEventTypes.remove(optionalTag);
// handle array tags (match-until clause)
LinkedHashMap<String, Pair<EventType, String>> arrayCompositeEventTypes = null;
if (tags.getArrayEventTypes() != null) {
arrayCompositeEventTypes = new LinkedHashMap<String, Pair<EventType, String>>();
String patternSubexEventType =
getPatternSubexEventType(context.getStatementId(), "pattern", subexpressionIdStack);
EventType arrayTagCompositeEventType =
context
.getEventAdapterService()
.createSemiAnonymousMapType(
patternSubexEventType, new HashMap(), tags.getArrayEventTypes(), isInsertInto);
for (Map.Entry<String, Pair<EventType, String>> entry :
tags.getArrayEventTypes().entrySet()) {
String tag = entry.getKey();
if (!filterTypes.containsKey(tag)) {
Pair<EventType, String> pair =
new Pair<EventType, String>(arrayTagCompositeEventType, tag);
filterTypes.put(tag, pair);
arrayCompositeEventTypes.put(tag, pair);
}
}
}
StreamTypeService streamTypeService =
new StreamTypeServiceImpl(filterTypes, context.getEngineURI(), true, false);
List<ExprNode> exprNodes = filterNode.getRawFilterSpec().getFilterExpressions();
FilterSpecCompiled spec =
FilterSpecCompiler.makeFilterSpec(
resolvedEventType,
eventName,
exprNodes,
filterNode.getRawFilterSpec().getOptionalPropertyEvalSpec(),
filterTaggedEventTypes,
arrayCompositeEventTypes,
streamTypeService,
context.getMethodResolutionService(),
context.getSchedulingService(),
context.getVariableService(),
context.getEventAdapterService(),
context.getEngineURI(),
null,
context,
subexpressionIdStack);
filterNode.setFilterSpec(spec);
} else if (evalNode instanceof EvalObserverNode) {
EvalObserverNode observerNode = (EvalObserverNode) evalNode;
try {
ObserverFactory observerFactory =
context.getPatternResolutionService().create(observerNode.getPatternObserverSpec());
StreamTypeService streamTypeService =
getStreamTypeService(
context.getEngineURI(),
context.getStatementId(),
context.getEventAdapterService(),
tags.taggedEventTypes,
tags.arrayEventTypes,
subexpressionIdStack,
"observer");
ExprValidationContext validationContext =
new ExprValidationContext(
streamTypeService,
context.getMethodResolutionService(),
null,
context.getSchedulingService(),
context.getVariableService(),
context,
context.getEventAdapterService(),
context.getStatementName(),
context.getStatementId(),
context.getAnnotations());
List<ExprNode> validated =
validateExpressions(
observerNode.getPatternObserverSpec().getObjectParameters(), validationContext);
MatchedEventConvertor convertor =
new MatchedEventConvertorImpl(
tags.taggedEventTypes, tags.arrayEventTypes, context.getEventAdapterService());
observerNode.setObserverFactory(observerFactory);
observerFactory.setObserverParameters(validated, convertor);
} catch (ObserverParameterException e) {
throw new ExprValidationException(
"Invalid parameter for pattern observer: " + e.getMessage(), e);
} catch (PatternObjectException e) {
throw new ExprValidationException(
"Failed to resolve pattern observer: " + e.getMessage(), e);
}
} else if (evalNode instanceof EvalGuardNode) {
EvalGuardNode guardNode = (EvalGuardNode) evalNode;
try {
GuardFactory guardFactory =
context.getPatternResolutionService().create(guardNode.getPatternGuardSpec());
StreamTypeService streamTypeService =
getStreamTypeService(
context.getEngineURI(),
context.getStatementId(),
context.getEventAdapterService(),
tags.taggedEventTypes,
tags.arrayEventTypes,
subexpressionIdStack,
"guard");
ExprValidationContext validationContext =
new ExprValidationContext(
streamTypeService,
context.getMethodResolutionService(),
null,
context.getSchedulingService(),
context.getVariableService(),
context,
context.getEventAdapterService(),
context.getStatementName(),
context.getStatementId(),
context.getAnnotations());
List<ExprNode> validated =
validateExpressions(
guardNode.getPatternGuardSpec().getObjectParameters(), validationContext);
MatchedEventConvertor convertor =
new MatchedEventConvertorImpl(
tags.taggedEventTypes, tags.arrayEventTypes, context.getEventAdapterService());
guardNode.setGuardFactory(guardFactory);
guardFactory.setGuardParameters(validated, convertor);
} catch (GuardParameterException e) {
throw new ExprValidationException(
"Invalid parameter for pattern guard: " + e.getMessage(), e);
} catch (PatternObjectException e) {
throw new ExprValidationException("Failed to resolve pattern guard: " + e.getMessage(), e);
}
} else if (evalNode instanceof EvalEveryDistinctNode) {
EvalEveryDistinctNode distinctNode = (EvalEveryDistinctNode) evalNode;
MatchEventSpec matchEventFromChildNodes = analyzeMatchEvent(distinctNode);
StreamTypeService streamTypeService =
getStreamTypeService(
context.getEngineURI(),
context.getStatementId(),
context.getEventAdapterService(),
matchEventFromChildNodes.getTaggedEventTypes(),
matchEventFromChildNodes.getArrayEventTypes(),
subexpressionIdStack,
"every-distinct");
ExprValidationContext validationContext =
new ExprValidationContext(
streamTypeService,
context.getMethodResolutionService(),
null,
context.getSchedulingService(),
context.getVariableService(),
context,
context.getEventAdapterService(),
context.getStatementName(),
context.getStatementId(),
context.getAnnotations());
List<ExprNode> validated;
try {
validated = validateExpressions(distinctNode.getExpressions(), validationContext);
} catch (ExprValidationPropertyException ex) {
throw new ExprValidationPropertyException(
ex.getMessage()
+ ", every-distinct requires that all properties resolve from sub-expressions to the every-distinct",
ex.getCause());
}
MatchedEventConvertor convertor =
new MatchedEventConvertorImpl(
matchEventFromChildNodes.getTaggedEventTypes(),
matchEventFromChildNodes.getArrayEventTypes(),
context.getEventAdapterService());
distinctNode.setConvertor(convertor);
// Determine whether some expressions are constants or time period
List<ExprNode> distinctExpressions = new ArrayList<ExprNode>();
Long msecToExpire = null;
for (ExprNode expr : validated) {
if (expr instanceof ExprTimePeriod) {
Double secondsExpire = (Double) ((ExprTimePeriod) expr).evaluate(null, true, context);
if ((secondsExpire != null) && (secondsExpire > 0)) {
msecToExpire = Math.round(1000d * secondsExpire);
}
log.debug("Setting every-distinct msec-to-expire to " + msecToExpire);
} else if (expr.isConstantResult()) {
log.warn(
"Every-distinct node utilizes an expression returning a constant value, please check expression '"
+ expr.toExpressionString()
+ "', not adding expression to distinct-value expression list");
} else {
distinctExpressions.add(expr);
}
}
if (distinctExpressions.isEmpty()) {
throw new ExprValidationException(
"Every-distinct node requires one or more distinct-value expressions that each return non-constant result values");
}
distinctNode.setExpressions(distinctExpressions, msecToExpire);
} else if (evalNode instanceof EvalMatchUntilNode) {
EvalMatchUntilNode matchUntilNode = (EvalMatchUntilNode) evalNode;
// compile bounds expressions, if any
MatchEventSpec untilMatchEventSpec =
new MatchEventSpec(tags.getTaggedEventTypes(), tags.getArrayEventTypes());
StreamTypeService streamTypeService =
getStreamTypeService(
context.getEngineURI(),
context.getStatementId(),
context.getEventAdapterService(),
untilMatchEventSpec.getTaggedEventTypes(),
untilMatchEventSpec.getArrayEventTypes(),
subexpressionIdStack,
"until");
ExprValidationContext validationContext =
new ExprValidationContext(
streamTypeService,
context.getMethodResolutionService(),
null,
context.getSchedulingService(),
context.getVariableService(),
context,
context.getEventAdapterService(),
context.getStatementName(),
context.getStatementId(),
context.getAnnotations());
String message = "Match-until bounds value expressions must return a numeric value";
if (matchUntilNode.getLowerBounds() != null) {
ExprNode validated =
ExprNodeUtility.getValidatedSubtree(matchUntilNode.getLowerBounds(), validationContext);
matchUntilNode.setLowerBounds(validated);
if ((validated.getExprEvaluator().getType() == null)
|| (!JavaClassHelper.isNumeric(validated.getExprEvaluator().getType()))) {
throw new ExprValidationException(message);
}
}
if (matchUntilNode.getUpperBounds() != null) {
ExprNode validated =
ExprNodeUtility.getValidatedSubtree(matchUntilNode.getUpperBounds(), validationContext);
matchUntilNode.setUpperBounds(validated);
if ((validated.getExprEvaluator().getType() == null)
|| (!JavaClassHelper.isNumeric(validated.getExprEvaluator().getType()))) {
throw new ExprValidationException(message);
}
}
MatchedEventConvertor convertor =
new MatchedEventConvertorImpl(
untilMatchEventSpec.getTaggedEventTypes(),
untilMatchEventSpec.getArrayEventTypes(),
context.getEventAdapterService());
matchUntilNode.setConvertor(convertor);
// compile new tag lists
Set<String> arrayTags = null;
EvalNodeAnalysisResult matchUntilAnalysisResult =
EvalNodeUtil.recursiveAnalyzeChildNodes(matchUntilNode.getChildNodes().get(0));
for (EvalFilterNode filterNode : matchUntilAnalysisResult.getFilterNodes()) {
String optionalTag = filterNode.getEventAsName();
if (optionalTag != null) {
if (arrayTags == null) {
arrayTags = new HashSet<String>();
}
arrayTags.add(optionalTag);
}
}
if (arrayTags != null) {
for (String arrayTag : arrayTags) {
if (!tags.arrayEventTypes.containsKey(arrayTag)) {
tags.arrayEventTypes.put(arrayTag, tags.taggedEventTypes.get(arrayTag));
tags.taggedEventTypes.remove(arrayTag);
}
}
}
matchUntilNode.setTagsArrayedSet(arrayTags);
} else if (evalNode instanceof EvalFollowedByNode) {
EvalFollowedByNode followedByNode = (EvalFollowedByNode) evalNode;
StreamTypeService streamTypeService =
new StreamTypeServiceImpl(context.getEngineURI(), false);
ExprValidationContext validationContext =
new ExprValidationContext(
streamTypeService,
context.getMethodResolutionService(),
null,
context.getSchedulingService(),
context.getVariableService(),
context,
context.getEventAdapterService(),
context.getStatementName(),
context.getStatementId(),
context.getAnnotations());
if (followedByNode.getOptionalMaxExpressions() != null) {
List<ExprNode> validated = new ArrayList<ExprNode>();
for (ExprNode maxExpr : followedByNode.getOptionalMaxExpressions()) {
if (maxExpr == null) {
validated.add(null);
} else {
ExprNodeSummaryVisitor visitor = new ExprNodeSummaryVisitor();
maxExpr.accept(visitor);
if (!visitor.isPlain()) {
String errorMessage =
"Invalid maximum expression in followed-by, "
+ visitor.getMessage()
+ " are not allowed within the expression";
log.error(errorMessage);
throw new ExprValidationException(errorMessage);
}
ExprNode validatedExpr =
ExprNodeUtility.getValidatedSubtree(maxExpr, validationContext);
validated.add(validatedExpr);
if ((validatedExpr.getExprEvaluator().getType() == null)
|| (!JavaClassHelper.isNumeric(validatedExpr.getExprEvaluator().getType()))) {
String message =
"Invalid maximum expression in followed-by, the expression must return an integer value";
throw new ExprValidationException(message);
}
}
}
followedByNode.setOptionalMaxExpressions(validated);
}
}
if (newTaggedEventTypes != null) {
tags.getTaggedEventTypes().putAll(newTaggedEventTypes);
}
if (newArrayEventTypes != null) {
tags.getArrayEventTypes().putAll(newArrayEventTypes);
}
}
public SelectExprProcessor getEvaluator() throws ExprValidationException {
// Get the named and un-named stream selectors (i.e. select s0.* from S0 as s0), if any
List<SelectClauseStreamCompiledSpec> namedStreams =
new ArrayList<SelectClauseStreamCompiledSpec>();
List<SelectExprStreamDesc> unnamedStreams = new ArrayList<SelectExprStreamDesc>();
for (SelectExprStreamDesc spec : selectedStreams) {
if (spec.getStreamSelected() != null && spec.getStreamSelected().getOptionalName() == null) {
unnamedStreams.add(spec);
} else if (spec.getExpressionSelectedAsStream()
!= null) { // handle special "transpose(...)" function
unnamedStreams.add(spec);
} else {
namedStreams.add(spec.getStreamSelected());
if (spec.getStreamSelected().isProperty()) {
throw new ExprValidationException(
"The property wildcard syntax must be used without column name");
}
}
}
// Error if there are more then one un-named streams (i.e. select s0.*, s1.* from S0 as s0, S1
// as s1)
// Thus there is only 1 unnamed stream selector maximum.
if (unnamedStreams.size() > 1) {
throw new ExprValidationException(
"A column name must be supplied for all but one stream if multiple streams are selected via the stream.* notation");
}
if (selectedStreams.isEmpty() && selectionList.isEmpty() && !isUsingWildcard) {
throw new IllegalArgumentException("Empty selection list not supported");
}
for (SelectClauseExprCompiledSpec entry : selectionList) {
if (entry.getAssignedName() == null) {
throw new IllegalArgumentException(
"Expected name for each expression has not been supplied");
}
}
// Verify insert into clause
if (insertIntoDesc != null) {
verifyInsertInto(insertIntoDesc, selectionList);
}
// Build a subordinate wildcard processor for joins
SelectExprProcessor joinWildcardProcessor = null;
if (typeService.getStreamNames().length > 1 && isUsingWildcard) {
joinWildcardProcessor =
SelectExprJoinWildcardProcessorFactory.create(
assignedTypeNumberStack,
statementId,
typeService.getStreamNames(),
typeService.getEventTypes(),
eventAdapterService,
null,
selectExprEventTypeRegistry,
methodResolutionService,
annotations,
configuration);
}
// Resolve underlying event type in the case of wildcard select
EventType eventType = null;
boolean singleStreamWrapper = false;
if (isUsingWildcard) {
if (joinWildcardProcessor != null) {
eventType = joinWildcardProcessor.getResultEventType();
} else {
eventType = typeService.getEventTypes()[0];
if (eventType instanceof WrapperEventType) {
singleStreamWrapper = true;
}
}
}
// Get expression nodes
ExprEvaluator[] exprEvaluators = new ExprEvaluator[selectionList.size()];
ExprNode[] exprNodes = new ExprNode[selectionList.size()];
Object[] expressionReturnTypes = new Object[selectionList.size()];
for (int i = 0; i < selectionList.size(); i++) {
ExprNode expr = selectionList.get(i).getSelectExpression();
exprNodes[i] = expr;
exprEvaluators[i] = expr.getExprEvaluator();
Map<String, Object> eventTypeExpr = exprEvaluators[i].getEventType();
if (eventTypeExpr == null) {
expressionReturnTypes[i] = exprEvaluators[i].getType();
} else {
final ExprEvaluator innerExprEvaluator = expr.getExprEvaluator();
final EventType mapType =
eventAdapterService.createAnonymousMapType(
statementId
+ "_innereval_"
+ CollectionUtil.toString(assignedTypeNumberStack, "_")
+ "_"
+ i,
eventTypeExpr);
ExprEvaluator evaluatorFragment =
new ExprEvaluator() {
public Object evaluate(
EventBean[] eventsPerStream,
boolean isNewData,
ExprEvaluatorContext exprEvaluatorContext) {
Map<String, Object> values =
(Map<String, Object>)
innerExprEvaluator.evaluate(
eventsPerStream, isNewData, exprEvaluatorContext);
if (values == null) {
values = Collections.emptyMap();
}
return eventAdapterService.adapterForTypedMap(values, mapType);
}
public Class getType() {
return Map.class;
}
public Map<String, Object> getEventType() {
return null;
}
};
expressionReturnTypes[i] = mapType;
exprEvaluators[i] = evaluatorFragment;
}
}
// Get column names
String[] columnNames;
String[] columnNamesAsProvided;
if ((insertIntoDesc != null) && (!insertIntoDesc.getColumnNames().isEmpty())) {
columnNames =
insertIntoDesc
.getColumnNames()
.toArray(new String[insertIntoDesc.getColumnNames().size()]);
columnNamesAsProvided = columnNames;
} else if (!selectedStreams.isEmpty()) { // handle stream selection column names
int numStreamColumnsJoin = 0;
if (isUsingWildcard && typeService.getEventTypes().length > 1) {
numStreamColumnsJoin = typeService.getEventTypes().length;
}
columnNames = new String[selectionList.size() + namedStreams.size() + numStreamColumnsJoin];
columnNamesAsProvided = new String[columnNames.length];
int count = 0;
for (SelectClauseExprCompiledSpec aSelectionList : selectionList) {
columnNames[count] = aSelectionList.getAssignedName();
columnNamesAsProvided[count] = aSelectionList.getProvidedName();
count++;
}
for (SelectClauseStreamCompiledSpec aSelectionList : namedStreams) {
columnNames[count] = aSelectionList.getOptionalName();
columnNamesAsProvided[count] = aSelectionList.getOptionalName();
count++;
}
// for wildcard joins, add the streams themselves
if (isUsingWildcard && typeService.getEventTypes().length > 1) {
for (String streamName : typeService.getStreamNames()) {
columnNames[count] = streamName;
columnNamesAsProvided[count] = streamName;
count++;
}
}
} else // handle regular column names
{
columnNames = new String[selectionList.size()];
columnNamesAsProvided = new String[selectionList.size()];
for (int i = 0; i < selectionList.size(); i++) {
columnNames[i] = selectionList.get(i).getAssignedName();
columnNamesAsProvided[i] = selectionList.get(i).getProvidedName();
}
}
// Find if there is any fragments selected
EventType targetType = null;
if (insertIntoDesc != null) {
targetType = eventAdapterService.getExistsTypeByName(insertIntoDesc.getEventTypeName());
}
// Find if there is any fragment event types:
// This is a special case for fragments: select a, b from pattern [a=A -> b=B]
// We'd like to maintain 'A' and 'B' EventType in the Map type, and 'a' and 'b' EventBeans in
// the event bean
for (int i = 0; i < selectionList.size(); i++) {
if (!(exprNodes[i] instanceof ExprIdentNode)) {
continue;
}
ExprIdentNode identNode = (ExprIdentNode) exprNodes[i];
String propertyName = identNode.getResolvedPropertyName();
final int streamNum = identNode.getStreamId();
EventType eventTypeStream = typeService.getEventTypes()[streamNum];
if (eventTypeStream instanceof NativeEventType) {
continue; // we do not transpose the native type for performance reasons
}
FragmentEventType fragmentType = eventTypeStream.getFragmentType(propertyName);
if ((fragmentType == null) || (fragmentType.isNative())) {
continue; // we also ignore native Java classes as fragments for performance reasons
}
// may need to unwrap the fragment if the target type has this underlying type
FragmentEventType targetFragment = null;
if (targetType != null) {
targetFragment = targetType.getFragmentType(columnNames[i]);
}
if ((targetType != null)
&& (fragmentType.getFragmentType().getUnderlyingType() == expressionReturnTypes[i])
&& ((targetFragment == null) || (targetFragment != null && targetFragment.isNative()))) {
ExprEvaluator evaluatorFragment;
// A match was found, we replace the expression
final EventPropertyGetter getter = eventTypeStream.getGetter(propertyName);
final Class returnType = eventTypeStream.getPropertyType(propertyName);
evaluatorFragment =
new ExprEvaluator() {
public Object evaluate(
EventBean[] eventsPerStream,
boolean isNewData,
ExprEvaluatorContext exprEvaluatorContext) {
EventBean streamEvent = eventsPerStream[streamNum];
if (streamEvent == null) {
return null;
}
return getter.get(streamEvent);
}
public Class getType() {
return returnType;
}
@Override
public Map<String, Object> getEventType() {
return null;
}
};
exprEvaluators[i] = evaluatorFragment;
}
// same for arrays: may need to unwrap the fragment if the target type has this underlying
// type
else if ((targetType != null)
&& expressionReturnTypes[i] instanceof Class
&& (fragmentType.getFragmentType().getUnderlyingType()
== ((Class) expressionReturnTypes[i]).getComponentType())
&& ((targetFragment == null) || (targetFragment != null && targetFragment.isNative()))) {
ExprEvaluator evaluatorFragment;
final EventPropertyGetter getter = eventTypeStream.getGetter(propertyName);
final Class returnType =
JavaClassHelper.getArrayType(eventTypeStream.getPropertyType(propertyName));
evaluatorFragment =
new ExprEvaluator() {
public Object evaluate(
EventBean[] eventsPerStream,
boolean isNewData,
ExprEvaluatorContext exprEvaluatorContext) {
EventBean streamEvent = eventsPerStream[streamNum];
if (streamEvent == null) {
return null;
}
return getter.get(streamEvent);
}
public Class getType() {
return returnType;
}
@Override
public Map<String, Object> getEventType() {
return null;
}
};
exprEvaluators[i] = evaluatorFragment;
} else {
ExprEvaluator evaluatorFragment;
final EventPropertyGetter getter = eventTypeStream.getGetter(propertyName);
final Class returnType =
eventTypeStream.getFragmentType(propertyName).getFragmentType().getUnderlyingType();
// A match was found, we replace the expression
evaluatorFragment =
new ExprEvaluator() {
public Object evaluate(
EventBean[] eventsPerStream,
boolean isNewData,
ExprEvaluatorContext exprEvaluatorContext) {
EventBean streamEvent = eventsPerStream[streamNum];
if (streamEvent == null) {
return null;
}
return getter.getFragment(streamEvent);
}
public Class getType() {
return returnType;
}
public Map<String, Object> getEventType() {
return null;
}
};
exprEvaluators[i] = evaluatorFragment;
if (!fragmentType.isIndexed()) {
expressionReturnTypes[i] = fragmentType.getFragmentType();
} else {
expressionReturnTypes[i] = new EventType[] {fragmentType.getFragmentType()};
}
}
}
// Find if there is any stream expression (ExprStreamNode) :
// This is a special case for stream selection: select a, b from A as a, B as b
// We'd like to maintain 'A' and 'B' EventType in the Map type, and 'a' and 'b' EventBeans in
// the event bean
for (int i = 0; i < selectionList.size(); i++) {
if (!(exprEvaluators[i] instanceof ExprStreamUnderlyingNode)) {
continue;
}
ExprStreamUnderlyingNode undNode = (ExprStreamUnderlyingNode) exprEvaluators[i];
final int streamNum = undNode.getStreamId();
final Class returnType = undNode.getExprEvaluator().getType();
EventType eventTypeStream = typeService.getEventTypes()[streamNum];
// A match was found, we replace the expression
ExprEvaluator evaluator =
new ExprEvaluator() {
public Object evaluate(
EventBean[] eventsPerStream,
boolean isNewData,
ExprEvaluatorContext exprEvaluatorContext) {
return eventsPerStream[streamNum];
}
public Class getType() {
return returnType;
}
public Map<String, Object> getEventType() {
return null;
}
};
exprEvaluators[i] = evaluator;
expressionReturnTypes[i] = eventTypeStream;
}
// Build event type that reflects all selected properties
Map<String, Object> selPropertyTypes = new LinkedHashMap<String, Object>();
int count = 0;
for (int i = 0; i < exprEvaluators.length; i++) {
Object expressionReturnType = expressionReturnTypes[count];
selPropertyTypes.put(columnNames[count], expressionReturnType);
count++;
}
if (!selectedStreams.isEmpty()) {
for (SelectClauseStreamCompiledSpec element : namedStreams) {
EventType eventTypeStream = typeService.getEventTypes()[element.getStreamNumber()];
selPropertyTypes.put(columnNames[count], eventTypeStream);
count++;
}
if (isUsingWildcard && typeService.getEventTypes().length > 1) {
for (int i = 0; i < typeService.getEventTypes().length; i++) {
EventType eventTypeStream = typeService.getEventTypes()[i];
selPropertyTypes.put(columnNames[count], eventTypeStream);
count++;
}
}
}
// Handle stream selection
EventType underlyingEventType = null;
int underlyingStreamNumber = 0;
boolean underlyingIsFragmentEvent = false;
EventPropertyGetter underlyingPropertyEventGetter = null;
ExprEvaluator underlyingExprEvaluator = null;
boolean useMapOutput =
EventRepresentationUtil.isMap(
annotations, configuration, CreateSchemaDesc.AssignedType.NONE);
if (!selectedStreams.isEmpty()) {
// Resolve underlying event type in the case of wildcard or non-named stream select.
// Determine if the we are considering a tagged event or a stream name.
if ((isUsingWildcard) || (!unnamedStreams.isEmpty())) {
if (!unnamedStreams.isEmpty()) {
if (unnamedStreams.get(0).getStreamSelected() != null) {
SelectClauseStreamCompiledSpec streamSpec = unnamedStreams.get(0).getStreamSelected();
// the tag.* syntax for : select tag.* from pattern [tag = A]
underlyingStreamNumber = streamSpec.getStreamNumber();
if (streamSpec.isFragmentEvent()) {
EventType compositeMap = typeService.getEventTypes()[underlyingStreamNumber];
FragmentEventType fragment = compositeMap.getFragmentType(streamSpec.getStreamName());
underlyingEventType = fragment.getFragmentType();
underlyingIsFragmentEvent = true;
}
// the property.* syntax for : select property.* from A
else if (streamSpec.isProperty()) {
String propertyName = streamSpec.getStreamName();
Class propertyType = streamSpec.getPropertyType();
int streamNumber = streamSpec.getStreamNumber();
if (JavaClassHelper.isJavaBuiltinDataType(streamSpec.getPropertyType())) {
throw new ExprValidationException(
"The property wildcard syntax cannot be used on built-in types as returned by property '"
+ propertyName
+ "'");
}
// create or get an underlying type for that Class
underlyingEventType =
eventAdapterService.addBeanType(
propertyType.getName(), propertyType, false, false, false);
selectExprEventTypeRegistry.add(underlyingEventType);
underlyingPropertyEventGetter =
typeService.getEventTypes()[streamNumber].getGetter(propertyName);
if (underlyingPropertyEventGetter == null) {
throw new ExprValidationException(
"Unexpected error resolving property getter for property " + propertyName);
}
}
// the stream.* syntax for: select a.* from A as a
else {
underlyingEventType = typeService.getEventTypes()[underlyingStreamNumber];
}
}
// handle case where the unnamed stream is a "transpose" function
else {
ExprNode expression =
unnamedStreams.get(0).getExpressionSelectedAsStream().getSelectExpression();
Class returnType = expression.getExprEvaluator().getType();
underlyingEventType =
eventAdapterService.addBeanType(
returnType.getName(), returnType, false, false, false);
selectExprEventTypeRegistry.add(underlyingEventType);
underlyingExprEvaluator = expression.getExprEvaluator();
}
} else {
// no un-named stream selectors, but a wildcard was specified
if (typeService.getEventTypes().length == 1) {
// not a join, we are using the selected event
underlyingEventType = typeService.getEventTypes()[0];
if (underlyingEventType instanceof WrapperEventType) {
singleStreamWrapper = true;
}
} else {
// For joins, all results are placed in a map with properties for each stream
underlyingEventType = null;
}
}
}
}
SelectExprContext selectExprContext =
new SelectExprContext(exprEvaluators, columnNames, eventAdapterService);
if (insertIntoDesc == null) {
if (!selectedStreams.isEmpty()) {
EventType resultEventType;
if (underlyingEventType != null) {
resultEventType =
eventAdapterService.createAnonymousWrapperType(
statementId + "_wrapout_" + CollectionUtil.toString(assignedTypeNumberStack, "_"),
underlyingEventType,
selPropertyTypes);
return new EvalSelectStreamWUnderlying(
selectExprContext,
resultEventType,
namedStreams,
isUsingWildcard,
unnamedStreams,
singleStreamWrapper,
underlyingIsFragmentEvent,
underlyingStreamNumber,
underlyingPropertyEventGetter,
underlyingExprEvaluator);
} else {
resultEventType =
eventAdapterService.createAnonymousMapType(
statementId + "_mapout_" + CollectionUtil.toString(assignedTypeNumberStack, "_"),
selPropertyTypes);
return new EvalSelectStreamNoUnderlyingMap(
selectExprContext, resultEventType, namedStreams, isUsingWildcard);
}
}
if (isUsingWildcard) {
EventType resultEventType =
eventAdapterService.createAnonymousWrapperType(
statementId
+ "_wrapoutwild_"
+ CollectionUtil.toString(assignedTypeNumberStack, "_"),
eventType,
selPropertyTypes);
if (singleStreamWrapper) {
return new EvalSelectWildcardSSWrapper(selectExprContext, resultEventType);
}
if (joinWildcardProcessor == null) {
return new EvalSelectWildcard(selectExprContext, resultEventType);
}
return new EvalSelectWildcardJoin(
selectExprContext, resultEventType, joinWildcardProcessor);
}
EventType resultEventType;
if (!useMapOutput) {
resultEventType =
eventAdapterService.createAnonymousObjectArrayType(
statementId + "_result_" + CollectionUtil.toString(assignedTypeNumberStack, "_"),
selPropertyTypes);
} else {
resultEventType =
eventAdapterService.createAnonymousMapType(
statementId + "_result_" + CollectionUtil.toString(assignedTypeNumberStack, "_"),
selPropertyTypes);
}
if (selectExprContext.getExpressionNodes().length == 0) {
return new EvalSelectNoWildcardEmptyProps(selectExprContext, resultEventType);
} else {
if (!useMapOutput) {
return new EvalSelectNoWildcardObjectArray(selectExprContext, resultEventType);
}
return new EvalSelectNoWildcardMap(selectExprContext, resultEventType);
}
}
EventType vaeInnerEventType = null;
boolean singleColumnWrapOrBeanCoercion =
false; // Additional single-column coercion for non-wrapped type done by
// SelectExprInsertEventBeanFactory
boolean isRevisionEvent = false;
try {
if (!selectedStreams.isEmpty()) {
EventType resultEventType;
if (underlyingEventType
!= null) // a single stream was selected via "stream.*" and there is no column name
{
// recast as a Map-type
if (underlyingEventType instanceof MapEventType && targetType instanceof MapEventType) {
return new EvalSelectStreamWUnderlyingRecastMap(
selectExprContext,
selectedStreams.get(0).getStreamSelected().getStreamNumber(),
targetType);
}
// recast as a Object-array-type
if (underlyingEventType instanceof ObjectArrayEventType
&& targetType instanceof ObjectArrayEventType) {
return new EvalSelectStreamWUnderlyingRecastObjectArray(
selectExprContext,
selectedStreams.get(0).getStreamSelected().getStreamNumber(),
targetType);
}
// recast as a Bean-type
if (underlyingEventType instanceof BeanEventType && targetType instanceof BeanEventType) {
SelectClauseExprCompiledSpec expressionAsStream =
selectedStreams.get(0).getExpressionSelectedAsStream();
if (expressionAsStream != null) {
return new EvalSelectStreamWUnderlyingRecastBean(
selectExprContext,
expressionAsStream,
underlyingEventType,
targetType,
exprEvaluators.length);
} else {
return new EvalInsertBeanRecast(
targetType,
eventAdapterService,
selectedStreams.get(0).getStreamSelected().getStreamNumber(),
typeService.getEventTypes());
}
}
// wrap if no recast possible
resultEventType =
eventAdapterService.addWrapperType(
insertIntoDesc.getEventTypeName(),
underlyingEventType,
selPropertyTypes,
false,
true);
return new EvalSelectStreamWUnderlying(
selectExprContext,
resultEventType,
namedStreams,
isUsingWildcard,
unnamedStreams,
singleStreamWrapper,
underlyingIsFragmentEvent,
underlyingStreamNumber,
underlyingPropertyEventGetter,
underlyingExprEvaluator);
} else // there are one or more streams selected with column name such as "stream.* as
// columnOne"
{
EventType existingType =
eventAdapterService.getExistsTypeByName(insertIntoDesc.getEventTypeName());
if (existingType instanceof BeanEventType) {
String name = selectedStreams.get(0).getStreamSelected().getStreamName();
String alias = selectedStreams.get(0).getStreamSelected().getOptionalName();
String syntaxUsed = name + ".*" + (alias != null ? " as " + alias : "");
String syntaxInstead = name + (alias != null ? " as " + alias : "");
throw new ExprValidationException(
"The '"
+ syntaxUsed
+ "' syntax is not allowed when inserting into an existing bean event type, use the '"
+ syntaxInstead
+ "' syntax instead");
}
if (existingType == null || existingType instanceof MapEventType) {
resultEventType =
eventAdapterService.addNestableMapType(
insertIntoDesc.getEventTypeName(),
selPropertyTypes,
null,
false,
false,
false,
false,
true);
Set<String> propertiesToUnwrap =
getEventBeanToObjectProps(selPropertyTypes, resultEventType);
if (propertiesToUnwrap.isEmpty()) {
return new EvalSelectStreamNoUnderlyingMap(
selectExprContext, resultEventType, namedStreams, isUsingWildcard);
} else {
return new EvalSelectStreamNoUndWEventBeanToObj(
selectExprContext,
resultEventType,
namedStreams,
isUsingWildcard,
propertiesToUnwrap);
}
} else {
Set<String> propertiesToUnwrap =
getEventBeanToObjectProps(selPropertyTypes, existingType);
if (propertiesToUnwrap.isEmpty()) {
return new EvalSelectStreamNoUnderlyingObjectArray(
selectExprContext, existingType, namedStreams, isUsingWildcard);
} else {
return new EvalSelectStreamNoUndWEventBeanToObjObjArray(
selectExprContext,
existingType,
namedStreams,
isUsingWildcard,
propertiesToUnwrap);
}
}
}
}
ValueAddEventProcessor vaeProcessor =
valueAddEventService.getValueAddProcessor(insertIntoDesc.getEventTypeName());
EventType resultEventType;
if (isUsingWildcard) {
if (vaeProcessor != null) {
resultEventType = vaeProcessor.getValueAddEventType();
isRevisionEvent = true;
vaeProcessor.validateEventType(eventType);
} else {
EventType existingType =
eventAdapterService.getExistsTypeByName(insertIntoDesc.getEventTypeName());
SelectExprProcessor existingTypeProcessor = null;
if (existingType != null) {
// we may get away with re-casting an existing bean-event-type event to another
// bean-event-type
if ((existingType instanceof BeanEventType)
&& (typeService.getEventTypes()[0] instanceof BeanEventType)
&& (selPropertyTypes.isEmpty())) {
return new EvalInsertBeanRecast(
existingType, eventAdapterService, 0, typeService.getEventTypes());
}
if ((existingType instanceof WrapperEventType)
&& (typeService.getEventTypes()[0] instanceof BeanEventType)
&& (exprEvaluators.length == 0)) {
WrapperEventType wrapperType = (WrapperEventType) existingType;
if (wrapperType.getUnderlyingEventType() instanceof BeanEventType) {
return new EvalInsertBeanWrapRecast(
wrapperType, eventAdapterService, 0, typeService.getEventTypes());
}
}
existingTypeProcessor =
SelectExprInsertEventBeanFactory.getInsertUnderlyingNonJoin(
eventAdapterService,
existingType,
isUsingWildcard,
typeService,
exprEvaluators,
columnNames,
expressionReturnTypes,
methodResolutionService.getEngineImportService(),
insertIntoDesc,
columnNamesAsProvided);
}
if (existingTypeProcessor != null) {
return existingTypeProcessor;
} else if (existingType != null
&& selPropertyTypes.isEmpty()
&& existingType instanceof MapEventType) {
resultEventType = existingType;
return new EvalInsertCoercionMap(resultEventType, eventAdapterService);
} else if (existingType != null
&& selPropertyTypes.isEmpty()
&& existingType instanceof ObjectArrayEventType) {
resultEventType = existingType;
return new EvalInsertCoercionObjectArray(resultEventType, eventAdapterService);
} else if (selPropertyTypes.isEmpty() && eventType instanceof BeanEventType) {
BeanEventType beanEventType = (BeanEventType) eventType;
resultEventType =
eventAdapterService.addBeanTypeByName(
insertIntoDesc.getEventTypeName(), beanEventType.getUnderlyingType(), false);
} else {
resultEventType =
eventAdapterService.addWrapperType(
insertIntoDesc.getEventTypeName(), eventType, selPropertyTypes, false, true);
}
}
if (singleStreamWrapper) {
if (!isRevisionEvent) {
return new EvalInsertWildcardSSWrapper(selectExprContext, resultEventType);
} else {
return new EvalInsertWildcardSSWrapperRevision(
selectExprContext, resultEventType, vaeProcessor);
}
}
if (joinWildcardProcessor == null) {
if (!isRevisionEvent) {
if (resultEventType instanceof WrapperEventType) {
return new EvalInsertWildcardWrapper(selectExprContext, resultEventType);
} else {
return new EvalInsertWildcardBean(selectExprContext, resultEventType);
}
} else {
if (exprEvaluators.length == 0) {
return new EvalInsertWildcardRevision(
selectExprContext, resultEventType, vaeProcessor);
} else {
EventType wrappingEventType =
eventAdapterService.addWrapperType(
insertIntoDesc.getEventTypeName() + "_wrapped",
eventType,
selPropertyTypes,
false,
true);
return new EvalInsertWildcardRevisionWrapper(
selectExprContext, resultEventType, vaeProcessor, wrappingEventType);
}
}
} else {
if (!isRevisionEvent) {
return new EvalInsertWildcardJoin(
selectExprContext, resultEventType, joinWildcardProcessor);
} else {
return new EvalInsertWildcardJoinRevision(
selectExprContext, resultEventType, joinWildcardProcessor, vaeProcessor);
}
}
}
// not using wildcard
resultEventType = null;
if ((columnNames.length == 1) && (insertIntoDesc.getColumnNames().size() == 0)) {
EventType existingType =
eventAdapterService.getExistsTypeByName(insertIntoDesc.getEventTypeName());
if (existingType != null) {
// check if the existing type and new type are compatible
Object columnOneType = expressionReturnTypes[0];
if (existingType instanceof WrapperEventType) {
WrapperEventType wrapperType = (WrapperEventType) existingType;
// Map and Object both supported
if (wrapperType.getUnderlyingEventType().getUnderlyingType() == columnOneType) {
singleColumnWrapOrBeanCoercion = true;
resultEventType = existingType;
}
}
if ((existingType instanceof BeanEventType) && (columnOneType instanceof Class)) {
BeanEventType beanType = (BeanEventType) existingType;
// Map and Object both supported
if (JavaClassHelper.isSubclassOrImplementsInterface(
(Class) columnOneType, beanType.getUnderlyingType())) {
singleColumnWrapOrBeanCoercion = true;
resultEventType = existingType;
}
}
}
}
if (singleColumnWrapOrBeanCoercion) {
if (!isRevisionEvent) {
if (resultEventType instanceof WrapperEventType) {
WrapperEventType wrapper = (WrapperEventType) resultEventType;
if (wrapper.getUnderlyingEventType() instanceof MapEventType) {
return new EvalInsertNoWildcardSingleColCoercionMapWrap(
selectExprContext, resultEventType);
} else if (wrapper.getUnderlyingEventType() instanceof ObjectArrayEventType) {
return new EvalInsertNoWildcardSingleColCoercionObjectArrayWrap(
selectExprContext, resultEventType);
} else if (wrapper.getUnderlyingEventType() instanceof VariantEventType) {
VariantEventType variantEventType =
(VariantEventType) wrapper.getUnderlyingEventType();
vaeProcessor = valueAddEventService.getValueAddProcessor(variantEventType.getName());
return new EvalInsertNoWildcardSingleColCoercionBeanWrapVariant(
selectExprContext, resultEventType, vaeProcessor);
} else {
return new EvalInsertNoWildcardSingleColCoercionBeanWrap(
selectExprContext, resultEventType);
}
} else {
if (resultEventType instanceof BeanEventType) {
return new EvalInsertNoWildcardSingleColCoercionBean(
selectExprContext, resultEventType);
}
}
} else {
if (resultEventType instanceof MapEventType) {
return new EvalInsertNoWildcardSingleColCoercionRevisionMap(
selectExprContext, resultEventType, vaeProcessor, vaeInnerEventType);
} else if (resultEventType instanceof ObjectArrayEventType) {
return new EvalInsertNoWildcardSingleColCoercionRevisionObjectArray(
selectExprContext, resultEventType, vaeProcessor, vaeInnerEventType);
} else if (resultEventType instanceof BeanEventType) {
return new EvalInsertNoWildcardSingleColCoercionRevisionBean(
selectExprContext, resultEventType, vaeProcessor, vaeInnerEventType);
} else {
return new EvalInsertNoWildcardSingleColCoercionRevisionBeanWrap(
selectExprContext, resultEventType, vaeProcessor, vaeInnerEventType);
}
}
}
if (resultEventType == null) {
if (vaeProcessor != null) {
// Use an anonymous type if the target is not a variant stream
if (valueAddEventService.getValueAddProcessor(insertIntoDesc.getEventTypeName())
== null) {
resultEventType =
eventAdapterService.createAnonymousMapType(
statementId + "_vae_" + CollectionUtil.toString(assignedTypeNumberStack, "_"),
selPropertyTypes);
} else {
String statementName = "stmt_" + statementId + "_insert";
resultEventType =
eventAdapterService.addNestableMapType(
statementName, selPropertyTypes, null, false, false, false, false, true);
}
} else {
EventType existingType =
eventAdapterService.getExistsTypeByName(insertIntoDesc.getEventTypeName());
if (existingType == null) {
// The type may however be an auto-import or fully-qualified class name
Class clazz = null;
try {
clazz = this.methodResolutionService.resolveClass(insertIntoDesc.getEventTypeName());
} catch (EngineImportException e) {
log.debug(
"Target stream name '"
+ insertIntoDesc.getEventTypeName()
+ "' is not resolved as a class name");
}
if (clazz != null) {
existingType =
eventAdapterService.addBeanType(clazz.getName(), clazz, false, false, false);
}
}
SelectExprProcessor selectExprInsertEventBean = null;
if (existingType != null) {
selectExprInsertEventBean =
SelectExprInsertEventBeanFactory.getInsertUnderlyingNonJoin(
eventAdapterService,
existingType,
isUsingWildcard,
typeService,
exprEvaluators,
columnNames,
expressionReturnTypes,
methodResolutionService.getEngineImportService(),
insertIntoDesc,
columnNamesAsProvided);
}
if (selectExprInsertEventBean != null) {
return selectExprInsertEventBean;
} else {
boolean useMap =
EventRepresentationUtil.isMap(
annotations, configuration, CreateSchemaDesc.AssignedType.NONE);
if (useMap) {
resultEventType =
eventAdapterService.addNestableMapType(
insertIntoDesc.getEventTypeName(),
selPropertyTypes,
null,
false,
false,
false,
false,
true);
} else {
resultEventType =
eventAdapterService.addNestableObjectArrayType(
insertIntoDesc.getEventTypeName(),
selPropertyTypes,
null,
false,
false,
false,
false,
true);
}
}
}
}
if (vaeProcessor != null) {
vaeProcessor.validateEventType(resultEventType);
vaeInnerEventType = resultEventType;
resultEventType = vaeProcessor.getValueAddEventType();
isRevisionEvent = true;
}
if (!isRevisionEvent) {
if (resultEventType instanceof MapEventType) {
return new EvalInsertNoWildcardMap(selectExprContext, resultEventType);
} else {
return new EvalInsertNoWildcardObjectArray(selectExprContext, resultEventType);
}
} else {
return new EvalInsertNoWildcardRevision(
selectExprContext, resultEventType, vaeProcessor, vaeInnerEventType);
}
} catch (EventAdapterException ex) {
log.debug("Exception provided by event adapter: " + ex.getMessage(), ex);
throw new ExprValidationException(ex.getMessage(), ex);
}
}
@Override
protected boolean doEquivalent(ExprNode a, ExprNode b) {
return a.getKind() == b.getKind() && new EqualsVisitor(a).exec(b);
}
@Override
protected IR constructIR() {
return new NodesExpr(nodeType.checkIR(Expression.class), getType().getType());
}
@Override
protected int doHash(ExprNode t) {
return 31 * t.getKind().hashCode() + hashCodeVisitor.exec(t);
}
