@Override
protected ParseResult parseNonEmptyToken(LoadContext context, DatasetVariable dv, String value) {
int pipeLoc = value.indexOf(Constants.PIPE);
if (pipeLoc == -1) {
return new ParseResult.Fail(
getTokenName() + " expected 2 pipe delimited arguments, found no pipe: " + value);
}
if (pipeLoc != value.lastIndexOf(Constants.PIPE)) {
return new ParseResult.Fail(
getTokenName() + " expected only 2 pipe delimited arguments, found: " + value);
}
String fullscope = value.substring(0, pipeLoc);
String fvName = value.substring(pipeLoc + 1);
String format;
String varName;
int equalLoc = fvName.indexOf('=');
if (equalLoc != fvName.lastIndexOf('=')) {
return new ParseResult.Fail(
getTokenName() + " expected only 2 equal delimited arguments, found: " + value);
}
if (equalLoc == -1) {
// Defaults to NUMBER
format = "NUMBER";
varName = fvName;
} else {
format = fvName.substring(0, equalLoc);
varName = fvName.substring(equalLoc + 1);
}
if (dv.getDisplayName() != null) {
return new ParseResult.Fail(getTokenName() + " must be the first token on the line");
}
VariableContext varContext = context.getVariableContext();
FormatManager<?> formatManager;
try {
formatManager = context.getReferenceContext().getFormatManager(format);
} catch (IllegalArgumentException e) {
return new ParseResult.Fail(
getTokenName()
+ " does not support format "
+ format
+ ", found in "
+ value
+ " due to "
+ e.getMessage());
}
LegalScope lvs = varContext.getScope(fullscope);
if (!DatasetVariable.isLegalName(varName)) {
return new ParseResult.Fail(varName + " is not a valid variable name");
}
boolean legal = varContext.assertLegalVariableID(lvs, formatManager, varName);
if (!legal) {
Set<LegalScope> known = varContext.getKnownLegalScopes(varName);
StringBuilder sb = new StringBuilder();
for (LegalScope v : known) {
sb.append(v.getName());
sb.append(", ");
}
return new ParseResult.Fail(
getTokenName()
+ " found a var defined in incompatible variable scopes: "
+ varName
+ " was requested in "
+ fullscope
+ " but was previously in "
+ sb.toString(),
context);
}
dv.setName(varName);
dv.setFormat(format);
dv.setScopeName(fullscope);
return ParseResult.SUCCESS;
}
