static void checkFieldType(
DmdlSemantics environment,
PropertyDeclaration declaration,
AstAttribute attribute,
BasicTypeKind... types) {
assert environment != null;
assert declaration != null;
assert attribute != null;
assert types != null;
assert types.length > 0;
Type type = declaration.getType();
if (type instanceof BasicType) {
BasicTypeKind kind = ((BasicType) type).getKind();
for (BasicTypeKind accept : types) {
if (kind == accept) {
return;
}
}
}
environment.report(
new Diagnostic(
Level.ERROR,
attribute,
Messages.getString("TsvFieldTrait.errorInconsistentType"), // $NON-NLS-1$
declaration.getOwner().getName().identifier,
declaration.getName().identifier,
attribute.name.toString(),
Arrays.asList(types)));
}
private void analyzeElements(
DmdlSemantics environment,
AstAttribute attribute,
Map<String, AstAttributeElement> elements,
HiveFieldTrait trait) {
trait.setTimestampTypeInfo();
environment.reportAll(AttributeUtil.reportInvalidElements(attribute, elements.values()));
}
@Override
public void process(
DmdlSemantics environment, PropertyDeclaration declaration, AstAttribute attribute) {
environment.reportAll(AttributeUtil.reportInvalidElements(attribute, attribute.elements));
CsvFieldDriver.checkFieldType(environment, declaration, attribute, BasicTypeKind.TEXT);
if (CsvFieldDriver.checkConflict(environment, declaration, attribute)) {
declaration.putTrait(CsvFieldTrait.class, new CsvFieldTrait(attribute, Kind.FILE_NAME, null));
}
}
private boolean checkNotEmpty(DmdlSemantics environment, String name, AstLiteral stringLiteral) {
assert environment != null;
assert name != null;
assert stringLiteral != null;
assert stringLiteral.kind == LiteralKind.STRING;
if (stringLiteral.toStringValue().isEmpty()) {
environment.report(
new Diagnostic(
Level.ERROR, stringLiteral, "@{0}({1}) must not be empty", TARGET_NAME, name));
return false;
}
return true;
}
private AstLiteral take(
DmdlSemantics environment,
Map<String, AstAttributeElement> elements,
String elementName,
LiteralKind kind) {
assert environment != null;
assert elements != null;
assert elementName != null;
assert kind != null;
AstAttributeElement element = elements.remove(elementName);
if (element == null) {
return null;
} else if ((element.value instanceof AstLiteral) == false) {
environment.report(
new Diagnostic(
Level.ERROR,
element,
"@{0}({1}) must be a string literal",
TARGET_NAME,
elementName));
return null;
} else {
AstLiteral literal = (AstLiteral) element.value;
if (literal.kind != kind) {
environment.report(
new Diagnostic(
Level.ERROR,
element,
"@{0}({1}) must be a string literal",
TARGET_NAME,
elementName));
return null;
}
return literal;
}
}
static boolean checkConflict(
DmdlSemantics environment, PropertyDeclaration declaration, AstAttribute attribute) {
assert environment != null;
assert declaration != null;
assert attribute != null;
if (declaration.getTrait(TsvFieldTrait.class) == null) {
return true;
}
environment.report(
new Diagnostic(
Level.ERROR,
attribute,
Messages.getString("TsvFieldTrait.errorConflictAttribute"), // $NON-NLS-1$
declaration.getOwner().getName().identifier,
declaration.getName().identifier));
return false;
}
private Configuration analyzeConfig(
DmdlSemantics environment,
AstAttribute attribute,
Map<String, AstAttributeElement> elements) {
AstLiteral charset = take(environment, elements, ELEMENT_CHARSET_NAME, LiteralKind.STRING);
AstLiteral header = take(environment, elements, ELEMENT_HAS_HEADER_NAME, LiteralKind.BOOLEAN);
AstLiteral codec = take(environment, elements, ELEMENT_CODEC_NAME, LiteralKind.STRING);
environment.reportAll(AttributeUtil.reportInvalidElements(attribute, elements.values()));
Configuration result = new Configuration();
if (charset != null && checkNotEmpty(environment, ELEMENT_CHARSET_NAME, charset)) {
result.setCharsetName(charset.toStringValue());
}
if (header != null) {
result.setEnableHeader(header.toBooleanValue());
}
if (codec != null && checkNotEmpty(environment, ELEMENT_CODEC_NAME, codec)) {
result.setCodecName(codec.toStringValue());
}
return result;
}
