public String expand(MssCFGenContext genContext) {
String retval;
final String S_ProcName = "CFGenKbGelReference.expand() ";
String referenceName = getRequiredReferenceName();
ICFGenKbGenItemObj genItem =
genContext.getGenEngine().findContextItem(genContext, referenceName);
if (genItem == null) {
genContext
.getGenEngine()
.getLog()
.message(
"Could not resolve reference method \""
+ referenceName
+ "\". \""
+ "$"
+ getRequiredSourceText()
+ "$"
+ "\" is invalid");
return (null);
}
if (!(genItem instanceof MssCFGenReferenceObj)) {
genContext
.getGenEngine()
.getLog()
.message(
"Resolution of reference method \""
+ referenceName
+ "\" returned a "
+ genItem.getClass().getPackage().getName()
+ "."
+ genItem.getClass().getName()
+ ", not a MssCFGenReferenceObj. \""
+ "$"
+ getRequiredSourceText()
+ "$"
+ "\" is invalid");
return (null);
}
MssCFGenReferenceObj reference = (MssCFGenReferenceObj) genItem;
ICFLibAnyObj refDef = reference.dereference(genContext);
if (refDef == null) {
genContext
.getGenEngine()
.getLog()
.message(
"Resolution of reference \""
+ referenceName
+ "\" returned null. \""
+ "$"
+ getRequiredSourceText()
+ "$"
+ "\" is invalid");
return (null);
}
MssCFGenContext refContext = genContext.buildRefContext(refDef);
if (refContext == null) {
throw new RuntimeException(S_ProcName + "buildRefContext() failed");
}
ICFGenKbGelInstructionObj remainder = getOptionalChildrenRemainder();
String expansion;
if (remainder == null) {
expansion = "";
} else {
expansion = remainder.expand(refContext);
}
return (expansion);
}
