Examples with CreateMapTerm io.confluent.ksql.execution.interpreter.terms.CreateMapTerm used on opensource projects

Example 1 with CreateMapTerm

use of io.confluent.ksql.execution.interpreter.terms.CreateMapTerm in project ksql by confluentinc.

the class TermCompiler method visitCreateMapExpression.

@Override
public Term visitCreateMapExpression(final CreateMapExpression exp, final Context context) {
    final ImmutableMap<Expression, Expression> map = exp.getMap();
    final List<Expression> keys = CoercionUtil.coerceUserList(map.keySet(), expressionTypeManager, context.getLambdaSqlTypeMapping()).expressions();
    final List<Expression> values = CoercionUtil.coerceUserList(map.values(), expressionTypeManager, context.getLambdaSqlTypeMapping()).expressions();
    final Iterable<Pair<Expression, Expression>> pairs = () -> Streams.zip(keys.stream(), values.stream(), Pair::of).iterator();
    final ImmutableMap.Builder<Term, Term> mapTerms = ImmutableMap.builder();
    for (Pair<Expression, Expression> p : pairs) {
        mapTerms.put(process(p.getLeft(), context), process(p.getRight(), context));
    }
    final SqlType resultType = expressionTypeManager.getExpressionSqlType(exp, context.getLambdaSqlTypeMapping());
    return new CreateMapTerm(mapTerms.build(), resultType);
}