Examples with StringLiteral com.facebook.presto.sql.tree.StringLiteral used on opensource projects

Example 16 with StringLiteral

use of com.facebook.presto.sql.tree.StringLiteral 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));
}

Example 17 with StringLiteral

use of com.facebook.presto.sql.tree.StringLiteral in project presto by prestodb.

the class TestExpressionUtils method testNormalize.

@Test
public void testNormalize() {
    assertNormalize(new ComparisonExpression(EQUAL, name("a"), new LongLiteral("1")));
    assertNormalize(new IsNullPredicate(name("a")));
    assertNormalize(new NotExpression(new LikePredicate(name("a"), new StringLiteral("x%"), Optional.empty())));
    assertNormalize(new NotExpression(new ComparisonExpression(EQUAL, name("a"), new LongLiteral("1"))), new ComparisonExpression(NOT_EQUAL, name("a"), new LongLiteral("1")));
    assertNormalize(new NotExpression(new ComparisonExpression(NOT_EQUAL, name("a"), new LongLiteral("1"))), new ComparisonExpression(EQUAL, name("a"), new LongLiteral("1")));
    // Cannot normalize IS DISTINCT FROM yet
    assertNormalize(new NotExpression(new ComparisonExpression(IS_DISTINCT_FROM, name("a"), new LongLiteral("1"))));
}

Example 18 with StringLiteral

use of com.facebook.presto.sql.tree.StringLiteral in project presto by prestodb.

the class TestSetSessionTask method testSetSession.

@Test
public void testSetSession() {
    testSetSession(new StringLiteral("baz"), "baz");
    testSetSession(new FunctionCall(QualifiedName.of("concat"), ImmutableList.of(new StringLiteral("ban"), new StringLiteral("ana"))), "banana");
}

Example 19 with StringLiteral

use of com.facebook.presto.sql.tree.StringLiteral in project presto by prestodb.

the class TestSetSessionTask method testSetSessionWithParameters.

@Test
public void testSetSessionWithParameters() {
    List<Expression> expressionList = new ArrayList<>();
    expressionList.add(new StringLiteral("ban"));
    expressionList.add(new Parameter(0));
    testSetSessionWithParameters("bar", new FunctionCall(QualifiedName.of("concat"), expressionList), "banana", ImmutableList.of(new StringLiteral("ana")));
}

Example 20 with StringLiteral

use of com.facebook.presto.sql.tree.StringLiteral in project presto by prestodb.

the class ValuesMatcher method detailMatches.

@Override
public MatchResult detailMatches(PlanNode node, StatsProvider stats, Session session, Metadata metadata, SymbolAliases symbolAliases) {
    checkState(shapeMatches(node), "Plan testing framework error: shapeMatches returned false in detailMatches in %s", this.getClass().getName());
    ValuesNode valuesNode = (ValuesNode) node;
    if (!expectedRows.map(rows -> rows.equals(valuesNode.getRows().stream().map(rowExpressions -> rowExpressions.stream().map(rowExpression -> {
        if (isExpression(rowExpression)) {
            return castToExpression(rowExpression);
        }
        ConstantExpression expression = (ConstantExpression) rowExpression;
        if (expression.getType().getJavaType() == boolean.class) {
            return new BooleanLiteral(String.valueOf(expression.getValue()));
        }
        if (expression.getType().getJavaType() == long.class) {
            return new LongLiteral(String.valueOf(expression.getValue()));
        }
        if (expression.getType().getJavaType() == double.class) {
            return new DoubleLiteral(String.valueOf(expression.getValue()));
        }
        if (expression.getType().getJavaType() == Slice.class) {
            return new StringLiteral(((Slice) expression.getValue()).toStringUtf8());
        }
        return new GenericLiteral(expression.getType().toString(), String.valueOf(expression.getValue()));
    }).collect(toImmutableList())).collect(toImmutableSet()))).orElse(true)) {
        return NO_MATCH;
    }
    return match(SymbolAliases.builder().putAll(Maps.transformValues(outputSymbolAliases, index -> createSymbolReference(valuesNode.getOutputVariables().get(index)))).build());
}