Examples with Cast io.confluent.ksql.execution.expression.tree.Cast used on opensource projects

Example 11 with Cast

use of io.confluent.ksql.execution.expression.tree.Cast in project ksql by confluentinc.

the class InterpretedExpressionTest method shouldEvaluateCastToTimestamp.

@Test
public void shouldEvaluateCastToTimestamp() {
    // Given:
    final Expression cast1 = new Cast(new TimestampLiteral(Timestamp.from(Instant.ofEpochMilli(1000))), new Type(SqlPrimitiveType.of("TIMESTAMP")));
    final Expression cast2 = new Cast(new StringLiteral("2017-11-13T23:59:58"), new Type(SqlPrimitiveType.of("TIMESTAMP")));
    final Expression cast3 = new Cast(new DateLiteral(new Date(864000000)), new Type(SqlPrimitiveType.of("TIMESTAMP")));
    // When:
    InterpretedExpression interpreter1 = interpreter(cast1);
    InterpretedExpression interpreter2 = interpreter(cast2);
    InterpretedExpression interpreter3 = interpreter(cast3);
    // Then:
    assertThat(interpreter1.evaluate(ROW), is(new Timestamp(1000L)));
    assertThat(interpreter2.evaluate(ROW), is(new Timestamp(1510617598000L)));
    assertThat(interpreter3.evaluate(ROW), is(new Timestamp(864000000)));
}

Example 12 with Cast

use of io.confluent.ksql.execution.expression.tree.Cast in project ksql by confluentinc.

the class InterpretedExpressionTest method shouldEvaluateCastToBigint.

@Test
public void shouldEvaluateCastToBigint() {
    // Given:
    final Expression cast1 = new Cast(new IntegerLiteral(10), new Type(SqlPrimitiveType.of("BIGINT")));
    final Expression cast2 = new Cast(new StringLiteral("1234"), new Type(SqlPrimitiveType.of("BIGINT")));
    final Expression cast3 = new Cast(new DoubleLiteral(12.5), new Type(SqlPrimitiveType.of("BIGINT")));
    final Expression cast4 = new Cast(new DecimalLiteral(new BigDecimal("4567.5")), new Type(SqlPrimitiveType.of("BIGINT")));
    // When:
    InterpretedExpression interpreter1 = interpreter(cast1);
    InterpretedExpression interpreter2 = interpreter(cast2);
    InterpretedExpression interpreter3 = interpreter(cast3);
    InterpretedExpression interpreter4 = interpreter(cast4);
    // Then:
    assertThat(interpreter1.evaluate(ROW), is(10L));
    assertThat(interpreter2.evaluate(ROW), is(1234L));
    assertThat(interpreter3.evaluate(ROW), is(12L));
    assertThat(interpreter4.evaluate(ROW), is(4567L));
}

Example 13 with Cast

use of io.confluent.ksql.execution.expression.tree.Cast in project ksql by confluentinc.

the class InterpretedExpressionTest method shouldEvaluateCastToInteger.

@Test
public void shouldEvaluateCastToInteger() {
    // Given:
    final Expression cast1 = new Cast(new LongLiteral(10L), new Type(SqlPrimitiveType.of("INTEGER")));
    final Expression cast2 = new Cast(new StringLiteral("1234"), new Type(SqlPrimitiveType.of("INTEGER")));
    final Expression cast3 = new Cast(new DoubleLiteral(12.5), new Type(SqlPrimitiveType.of("INTEGER")));
    final Expression cast4 = new Cast(new DecimalLiteral(new BigDecimal("4567.5")), new Type(SqlPrimitiveType.of("INTEGER")));
    // When:
    InterpretedExpression interpreter1 = interpreter(cast1);
    InterpretedExpression interpreter2 = interpreter(cast2);
    InterpretedExpression interpreter3 = interpreter(cast3);
    InterpretedExpression interpreter4 = interpreter(cast4);
    // Then:
    assertThat(interpreter1.evaluate(ROW), is(10));
    assertThat(interpreter2.evaluate(ROW), is(1234));
    assertThat(interpreter3.evaluate(ROW), is(12));
    assertThat(interpreter4.evaluate(ROW), is(4567));
}

Example 14 with Cast

use of io.confluent.ksql.execution.expression.tree.Cast in project ksql by confluentinc.

the class ExpressionFormatterTest method shouldFormatCast.

@Test
public void shouldFormatCast() {
    // Given:
    final Cast cast = new Cast(new LongLiteral(1), new Type(SqlTypes.DOUBLE));
    // When:
    final String result = ExpressionFormatter.formatExpression(cast);
    // Then:
    assertThat(result, equalTo("CAST(1 AS DOUBLE)"));
}

Example 15 with Cast

use of io.confluent.ksql.execution.expression.tree.Cast in project ksql by confluentinc.

the class ExpressionTreeRewriterTest method shouldRewriteCast.

@Test
public void shouldRewriteCast() {
    // Given:
    final Cast parsed = parseExpression("CAST(col0 AS INTEGER)");
    when(processor.apply(parsed.getType(), context)).thenReturn(type);
    when(processor.apply(parsed.getExpression(), context)).thenReturn(expr1);
    // When:
    final Expression rewritten = expressionRewriter.rewrite(parsed, context);
    // Then:
    assertThat(rewritten, equalTo(new Cast(parsed.getLocation(), expr1, type)));
}