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

Example 91 with Expression

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

the class SqlToJavaVisitorTest method shouldProcessCreateMapExpressionCorrectly.

@Test
public void shouldProcessCreateMapExpressionCorrectly() {
    // Given:
    Expression expression = new CreateMapExpression(ImmutableMap.of(new StringLiteral("foo"), new SubscriptExpression(MAPCOL, new StringLiteral("key1")), new StringLiteral("bar"), new DoubleLiteral(1.0d)));
    // When:
    String java = sqlToJavaVisitor.process(expression);
    // Then:
    assertThat(java, equalTo("((Map)new MapBuilder(2)" + ".put( (new Supplier<Object>() {@Override public Object get() { try {  return \"foo\"; } catch (Exception e) {  " + onException("map key") + " }}}).get(),  (new Supplier<Object>() {@Override public Object get() { try {  return ((Double) ((java.util.Map)COL5).get(\"key1\")); } catch (Exception e) {  " + onException("map value") + " }}}).get())" + ".put( (new Supplier<Object>() {@Override public Object get() { try {  return \"bar\"; } catch (Exception e) {  " + onException("map key") + " }}}).get(),  (new Supplier<Object>() {@Override public Object get() { try {  return 1E0; } catch (Exception e) {  " + onException("map value") + " }}}).get()).build())"));
}

Example 92 with Expression

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

the class SqlToJavaVisitorTest method shouldGenerateCorrectCodeForFunctionWithMultipleLambdas.

@Test
public void shouldGenerateCorrectCodeForFunctionWithMultipleLambdas() {
    // Given:
    final UdfFactory udfFactory = mock(UdfFactory.class);
    final KsqlScalarFunction udf = mock(KsqlScalarFunction.class);
    givenUdf("function", udfFactory, udf, SqlTypes.STRING);
    when(udf.parameters()).thenReturn(ImmutableList.of(ArrayType.of(ParamTypes.DOUBLE), ParamTypes.STRING, LambdaType.of(ImmutableList.of(ParamTypes.DOUBLE, ParamTypes.STRING), ParamTypes.DOUBLE), LambdaType.of(ImmutableList.of(ParamTypes.DOUBLE, ParamTypes.STRING), ParamTypes.STRING)));
    final Expression expression = new FunctionCall(FunctionName.of("function"), ImmutableList.of(ARRAYCOL, COL1, new LambdaFunctionCall(ImmutableList.of("X", "S"), new ArithmeticBinaryExpression(Operator.ADD, new LambdaVariable("X"), new LambdaVariable("X"))), new LambdaFunctionCall(ImmutableList.of("X", "S"), new SearchedCaseExpression(ImmutableList.of(new WhenClause(new ComparisonExpression(ComparisonExpression.Type.LESS_THAN, new LambdaVariable("X"), new IntegerLiteral(10)), new StringLiteral("test")), new WhenClause(new ComparisonExpression(ComparisonExpression.Type.LESS_THAN, new LambdaVariable("X"), new IntegerLiteral(100)), new StringLiteral("test2"))), Optional.of(new LambdaVariable("S"))))));
    // When:
    final String javaExpression = sqlToJavaVisitor.process(expression);
    // Then
    assertThat(javaExpression, equalTo("((String) function_0.evaluate(COL4, COL1, new BiFunction() {\n" + " @Override\n" + " public Object apply(Object arg1, Object arg2) {\n" + "   final Double X = (Double) arg1;\n" + "   final String S = (String) arg2;\n" + "   return (X + X);\n" + " }\n" + "}, new BiFunction() {\n" + " @Override\n" + " public Object apply(Object arg1, Object arg2) {\n" + "   final Double X = (Double) arg1;\n" + "   final String S = (String) arg2;\n" + "   return ((java.lang.String)SearchedCaseFunction.searchedCaseFunction(ImmutableList.copyOf(Arrays.asList( SearchedCaseFunction.whenClause( new Supplier<Boolean>() { @Override public Boolean get() { return ((((Object)(X)) == null || ((Object)(10)) == null) ? false : (X < 10)); }},  new Supplier<java.lang.String>() { @Override public java.lang.String get() { return \"test\"; }}), SearchedCaseFunction.whenClause( new Supplier<Boolean>() { @Override public Boolean get() { return ((((Object)(X)) == null || ((Object)(100)) == null) ? false : (X < 100)); }},  new Supplier<java.lang.String>() { @Override public java.lang.String get() { return \"test2\"; }}))), new Supplier<java.lang.String>() { @Override public java.lang.String get() { return S; }}));\n" + " }\n" + "}))"));
}

Example 93 with Expression

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

the class SqlToJavaVisitorTest method shouldProcessArrayExpressionCorrectly.

@Test
public void shouldProcessArrayExpressionCorrectly() {
    // Given:
    final Expression expression = new SubscriptExpression(ARRAYCOL, literal(0));
    // When:
    final String javaExpression = sqlToJavaVisitor.process(expression);
    // Then:
    assertThat(javaExpression, equalTo("((Double) (ArrayAccess.arrayAccess((java.util.List) COL4, ((int) 0))))"));
}

Example 94 with Expression

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

the class SqlToJavaVisitorTest method shouldGenerateCorrectCodeForCaseStatement.

@Test
public void shouldGenerateCorrectCodeForCaseStatement() {
    // Given:
    final Expression expression = new SearchedCaseExpression(ImmutableList.of(new WhenClause(new ComparisonExpression(ComparisonExpression.Type.LESS_THAN, COL7, new IntegerLiteral(10)), new StringLiteral("small")), new WhenClause(new ComparisonExpression(ComparisonExpression.Type.LESS_THAN, COL7, new IntegerLiteral(100)), new StringLiteral("medium"))), Optional.of(new StringLiteral("large")));
    // When:
    final String javaExpression = sqlToJavaVisitor.process(expression);
    // ThenL
    assertThat(javaExpression, equalTo("((java.lang.String)SearchedCaseFunction.searchedCaseFunction(ImmutableList.copyOf(Arrays.asList( SearchedCaseFunction.whenClause( new Supplier<Boolean>() { @Override public Boolean get() { return ((((Object)(COL7)) == null || ((Object)(10)) == null) ? false : (COL7 < 10)); }},  new Supplier<java.lang.String>() { @Override public java.lang.String get() { return \"small\"; }}), SearchedCaseFunction.whenClause( new Supplier<Boolean>() { @Override public Boolean get() { return ((((Object)(COL7)) == null || ((Object)(100)) == null) ? false : (COL7 < 100)); }},  new Supplier<java.lang.String>() { @Override public java.lang.String get() { return \"medium\"; }}))), new Supplier<java.lang.String>() { @Override public java.lang.String get() { return \"large\"; }}))"));
}

Example 95 with Expression

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

the class SqlToJavaVisitorTest method shouldGenerateCorrectCodeForLambdaExpression.

@Test
public void shouldGenerateCorrectCodeForLambdaExpression() {
    // Given:
    final UdfFactory udfFactory = mock(UdfFactory.class);
    final KsqlScalarFunction udf = mock(KsqlScalarFunction.class);
    givenUdf("ABS", udfFactory, udf, SqlTypes.STRING);
    givenUdf("TRANSFORM", udfFactory, udf, SqlTypes.STRING);
    when(udf.parameters()).thenReturn(ImmutableList.of(ArrayType.of(ParamTypes.DOUBLE), LambdaType.of(ImmutableList.of(ParamTypes.DOUBLE), ParamTypes.DOUBLE)));
    final Expression expression = new FunctionCall(FunctionName.of("TRANSFORM"), ImmutableList.of(ARRAYCOL, new LambdaFunctionCall(ImmutableList.of("x"), (new FunctionCall(FunctionName.of("ABS"), ImmutableList.of(new LambdaVariable("X")))))));
    // When:
    final String javaExpression = sqlToJavaVisitor.process(expression);
    // Then
    assertThat(javaExpression, equalTo("((String) TRANSFORM_0.evaluate(COL4, new Function() {\n @Override\n public Object apply(Object arg1) {\n   final Double x = (Double) arg1;\n   return ((String) ABS_1.evaluate(X));\n }\n}))"));
}