use of com.facebook.presto.sql.tree.EnumLiteral in project presto by prestodb.
the class LiteralEncoder method toExpression.
@Deprecated
public Expression toExpression(Object object, Type type, boolean typeOnly) {
requireNonNull(type, "type is null");
if (object instanceof Expression) {
return (Expression) object;
}
if (object == null) {
if (type.equals(UNKNOWN)) {
return new NullLiteral();
}
return new Cast(new NullLiteral(), type.getTypeSignature().toString(), false, typeOnly);
}
if (type.equals(TINYINT)) {
return new GenericLiteral("TINYINT", object.toString());
}
if (type.equals(SMALLINT)) {
return new GenericLiteral("SMALLINT", object.toString());
}
if (type.equals(INTEGER)) {
return new LongLiteral(object.toString());
}
if (type.equals(BIGINT)) {
LongLiteral expression = new LongLiteral(object.toString());
if (expression.getValue() >= Integer.MIN_VALUE && expression.getValue() <= Integer.MAX_VALUE) {
return new GenericLiteral("BIGINT", object.toString());
}
return new LongLiteral(object.toString());
}
checkArgument(Primitives.wrap(type.getJavaType()).isInstance(object), "object.getClass (%s) and type.getJavaType (%s) do not agree", object.getClass(), type.getJavaType());
if (type.equals(DOUBLE)) {
Double value = (Double) object;
// When changing this, don't forget about similar code for REAL below
if (value.isNaN()) {
return new FunctionCall(QualifiedName.of("nan"), ImmutableList.of());
}
if (value.equals(Double.NEGATIVE_INFINITY)) {
return ArithmeticUnaryExpression.negative(new FunctionCall(QualifiedName.of("infinity"), ImmutableList.of()));
}
if (value.equals(Double.POSITIVE_INFINITY)) {
return new FunctionCall(QualifiedName.of("infinity"), ImmutableList.of());
}
return new DoubleLiteral(object.toString());
}
if (type.equals(REAL)) {
Float value = intBitsToFloat(((Long) object).intValue());
// WARNING for ORC predicate code as above (for double)
if (value.isNaN()) {
return new Cast(new FunctionCall(QualifiedName.of("nan"), ImmutableList.of()), StandardTypes.REAL);
}
if (value.equals(Float.NEGATIVE_INFINITY)) {
return ArithmeticUnaryExpression.negative(new Cast(new FunctionCall(QualifiedName.of("infinity"), ImmutableList.of()), StandardTypes.REAL));
}
if (value.equals(Float.POSITIVE_INFINITY)) {
return new Cast(new FunctionCall(QualifiedName.of("infinity"), ImmutableList.of()), StandardTypes.REAL);
}
return new GenericLiteral("REAL", value.toString());
}
if (type instanceof DecimalType) {
String string;
if (isShortDecimal(type)) {
string = Decimals.toString((long) object, ((DecimalType) type).getScale());
} else {
string = Decimals.toString((Slice) object, ((DecimalType) type).getScale());
}
return new Cast(new DecimalLiteral(string), type.getDisplayName());
}
if (type instanceof VarcharType) {
VarcharType varcharType = (VarcharType) type;
Slice value = (Slice) object;
StringLiteral stringLiteral = new StringLiteral(value.toStringUtf8());
if (!varcharType.isUnbounded() && varcharType.getLengthSafe() == SliceUtf8.countCodePoints(value)) {
return stringLiteral;
}
return new Cast(stringLiteral, type.getDisplayName(), false, typeOnly);
}
if (type instanceof CharType) {
StringLiteral stringLiteral = new StringLiteral(((Slice) object).toStringUtf8());
return new Cast(stringLiteral, type.getDisplayName(), false, typeOnly);
}
if (type.equals(BOOLEAN)) {
return new BooleanLiteral(object.toString());
}
if (type.equals(DATE)) {
return new GenericLiteral("DATE", new SqlDate(toIntExact((Long) object)).toString());
}
if (object instanceof Block) {
SliceOutput output = new DynamicSliceOutput(toIntExact(((Block) object).getSizeInBytes()));
BlockSerdeUtil.writeBlock(blockEncodingSerde, output, (Block) object);
object = output.slice();
// This if condition will evaluate to true: object instanceof Slice && !type.equals(VARCHAR)
}
if (type instanceof EnumType) {
return new EnumLiteral(type.getTypeSignature().toString(), object);
}
Signature signature = getMagicLiteralFunctionSignature(type);
if (object instanceof Slice) {
// HACK: we need to serialize VARBINARY in a format that can be embedded in an expression to be
// able to encode it in the plan that gets sent to workers.
// We do this by transforming the in-memory varbinary into a call to from_base64(<base64-encoded value>)
FunctionCall fromBase64 = new FunctionCall(QualifiedName.of("from_base64"), ImmutableList.of(new StringLiteral(VarbinaryFunctions.toBase64((Slice) object).toStringUtf8())));
return new FunctionCall(QualifiedName.of(signature.getNameSuffix()), ImmutableList.of(fromBase64));
}
Expression rawLiteral = toExpression(object, typeForMagicLiteral(type), typeOnly);
return new FunctionCall(QualifiedName.of(signature.getNameSuffix()), ImmutableList.of(rawLiteral));
}
use of com.facebook.presto.sql.tree.EnumLiteral in project presto by prestodb.
the class RelationPlanner method rewriteRow.
private RowExpression rewriteRow(Expression row) {
// resolve enum literals
Expression expression = ExpressionTreeRewriter.rewriteWith(new ExpressionRewriter<Void>() {
@Override
public Expression rewriteDereferenceExpression(DereferenceExpression node, Void context, ExpressionTreeRewriter<Void> treeRewriter) {
Type baseType = analysis.getType(node.getBase());
Type nodeType = analysis.getType(node);
if (isEnumType(baseType) && isEnumType(nodeType)) {
return new EnumLiteral(nodeType.getTypeSignature().toString(), resolveEnumLiteral(node, nodeType));
}
return node;
}
}, row);
expression = Coercer.addCoercions(expression, analysis);
expression = ExpressionTreeRewriter.rewriteWith(new ParameterRewriter(analysis.getParameters(), analysis), expression);
return castToRowExpression(expression);
}
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