Examples with PhysType org.apache.calcite.adapter.enumerable.PhysType used on opensource projects

Example 1 with PhysType

use of org.apache.calcite.adapter.enumerable.PhysType in project calcite by apache.

the class JaninoRexCompiler method compile.

public Scalar compile(List<RexNode> nodes, RelDataType inputRowType) {
    final RexProgramBuilder programBuilder = new RexProgramBuilder(inputRowType, rexBuilder);
    for (RexNode node : nodes) {
        programBuilder.addProject(node, null);
    }
    final RexProgram program = programBuilder.getProgram();
    final BlockBuilder builder = new BlockBuilder();
    final ParameterExpression context_ = Expressions.parameter(Context.class, "context");
    final ParameterExpression outputValues_ = Expressions.parameter(Object[].class, "outputValues");
    final JavaTypeFactoryImpl javaTypeFactory = new JavaTypeFactoryImpl(rexBuilder.getTypeFactory().getTypeSystem());
    // public void execute(Context, Object[] outputValues)
    final RexToLixTranslator.InputGetter inputGetter = new RexToLixTranslator.InputGetterImpl(ImmutableList.of(Pair.<Expression, PhysType>of(Expressions.field(context_, BuiltInMethod.CONTEXT_VALUES.field), PhysTypeImpl.of(javaTypeFactory, inputRowType, JavaRowFormat.ARRAY, false))));
    final Function1<String, RexToLixTranslator.InputGetter> correlates = new Function1<String, RexToLixTranslator.InputGetter>() {

        public RexToLixTranslator.InputGetter apply(String a0) {
            throw new UnsupportedOperationException();
        }
    };
    final Expression root = Expressions.field(context_, BuiltInMethod.CONTEXT_ROOT.field);
    final List<Expression> list = RexToLixTranslator.translateProjects(program, javaTypeFactory, builder, null, root, inputGetter, correlates);
    for (int i = 0; i < list.size(); i++) {
        builder.add(Expressions.statement(Expressions.assign(Expressions.arrayIndex(outputValues_, Expressions.constant(i)), list.get(i))));
    }
    return baz(context_, outputValues_, builder.toBlock());
}

Example 2 with PhysType

use of org.apache.calcite.adapter.enumerable.PhysType in project calcite by apache.

the class JdbcToSparkConverter method implementSpark.

public SparkRel.Result implementSpark(SparkRel.Implementor implementor) {
    // Generate:
    // ResultSetEnumerable.of(schema.getDataSource(), "select ...")
    final BlockBuilder list = new BlockBuilder();
    final JdbcRel child = (JdbcRel) getInput();
    final PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), JavaRowFormat.CUSTOM);
    final JdbcConvention jdbcConvention = (JdbcConvention) child.getConvention();
    String sql = generateSql(jdbcConvention.dialect);
    if (CalcitePrepareImpl.DEBUG) {
        System.out.println("[" + sql + "]");
    }
    final Expression sqlLiteral = list.append("sql", Expressions.constant(sql));
    final List<Primitive> primitives = new ArrayList<Primitive>();
    for (int i = 0; i < getRowType().getFieldCount(); i++) {
        final Primitive primitive = Primitive.ofBoxOr(physType.fieldClass(i));
        primitives.add(primitive != null ? primitive : Primitive.OTHER);
    }
    final Expression primitivesLiteral = list.append("primitives", Expressions.constant(primitives.toArray(new Primitive[primitives.size()])));
    final Expression enumerable = list.append("enumerable", Expressions.call(BuiltInMethod.RESULT_SET_ENUMERABLE_OF.method, Expressions.call(Expressions.convert_(jdbcConvention.expression, JdbcSchema.class), BuiltInMethod.JDBC_SCHEMA_DATA_SOURCE.method), sqlLiteral, primitivesLiteral));
    list.add(Expressions.return_(null, enumerable));
    return implementor.result(physType, list.toBlock());
}

Example 3 with PhysType

use of org.apache.calcite.adapter.enumerable.PhysType in project calcite by apache.

the class SparkToEnumerableConverter method implement.

public Result implement(EnumerableRelImplementor implementor, Prefer pref) {
    // Generate:
    // RDD rdd = ...;
    // return SparkRuntime.asEnumerable(rdd);
    final BlockBuilder list = new BlockBuilder();
    final SparkRel child = (SparkRel) getInput();
    final PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), getRowType(), JavaRowFormat.CUSTOM);
    SparkRel.Implementor sparkImplementor = new SparkImplementorImpl(implementor);
    final SparkRel.Result result = child.implementSpark(sparkImplementor);
    final Expression rdd = list.append("rdd", result.block);
    final Expression enumerable = list.append("enumerable", Expressions.call(SparkMethod.AS_ENUMERABLE.method, rdd));
    list.add(Expressions.return_(null, enumerable));
    return implementor.result(physType, list.toBlock());
}

Example 4 with PhysType

use of org.apache.calcite.adapter.enumerable.PhysType in project calcite by apache.

the class MongoToEnumerableConverter method implement.

public Result implement(EnumerableRelImplementor implementor, Prefer pref) {
    // Generates a call to "find" or "aggregate", depending upon whether
    // an aggregate is present.
    // 
    // ((MongoTable) schema.getTable("zips")).find(
    // "{state: 'CA'}",
    // "{city: 1, zipcode: 1}")
    // 
    // ((MongoTable) schema.getTable("zips")).aggregate(
    // "{$filter: {state: 'CA'}}",
    // "{$group: {_id: '$city', c: {$sum: 1}, p: {$sum: "$pop"}}")
    final BlockBuilder list = new BlockBuilder();
    final MongoRel.Implementor mongoImplementor = new MongoRel.Implementor();
    mongoImplementor.visitChild(0, getInput());
    int aggCount = 0;
    int findCount = 0;
    String project = null;
    String filter = null;
    for (Pair<String, String> op : mongoImplementor.list) {
        if (op.left == null) {
            ++aggCount;
        }
        if (op.right.startsWith("{$match:")) {
            filter = op.left;
            ++findCount;
        }
        if (op.right.startsWith("{$project:")) {
            project = op.left;
            ++findCount;
        }
    }
    final RelDataType rowType = getRowType();
    final PhysType physType = PhysTypeImpl.of(implementor.getTypeFactory(), rowType, pref.prefer(JavaRowFormat.ARRAY));
    final Expression fields = list.append("fields", constantArrayList(Pair.zip(MongoRules.mongoFieldNames(rowType), new AbstractList<Class>() {

        @Override
        public Class get(int index) {
            return physType.fieldClass(index);
        }

        @Override
        public int size() {
            return rowType.getFieldCount();
        }
    }), Pair.class));
    final Expression table = list.append("table", mongoImplementor.table.getExpression(MongoTable.MongoQueryable.class));
    List<String> opList = Pair.right(mongoImplementor.list);
    final Expression ops = list.append("ops", constantArrayList(opList, String.class));
    Expression enumerable = list.append("enumerable", Expressions.call(table, MongoMethod.MONGO_QUERYABLE_AGGREGATE.method, fields, ops));
    if (CalcitePrepareImpl.DEBUG) {
        System.out.println("Mongo: " + opList);
    }
    Hook.QUERY_PLAN.run(opList);
    list.add(Expressions.return_(null, enumerable));
    return implementor.result(physType, list.toBlock());
}

Example 5 with PhysType

use of org.apache.calcite.adapter.enumerable.PhysType in project streamline by hortonworks.

the class RexNodeToJavaCodeCompiler method compileToBlock.

private BlockBuilder compileToBlock(final RexProgram program, ParameterExpression context_, ParameterExpression outputValues_) {
    RelDataType inputRowType = program.getInputRowType();
    final BlockBuilder builder = new BlockBuilder();
    final JavaTypeFactoryImpl javaTypeFactory = new JavaTypeFactoryImpl(rexBuilder.getTypeFactory().getTypeSystem());
    final RexToLixTranslator.InputGetter inputGetter = new RexToLixTranslator.InputGetterImpl(ImmutableList.of(Pair.<Expression, PhysType>of(Expressions.field(context_, BuiltInMethod.CONTEXT_VALUES.field), PhysTypeImpl.of(javaTypeFactory, inputRowType, JavaRowFormat.ARRAY, false))));
    final Function1<String, RexToLixTranslator.InputGetter> correlates = new Function1<String, RexToLixTranslator.InputGetter>() {

        public RexToLixTranslator.InputGetter apply(String a0) {
            throw new UnsupportedOperationException();
        }
    };
    final Expression root = Expressions.field(context_, BuiltInMethod.CONTEXT_ROOT.field);
    final List<Expression> list = RexToLixTranslator.translateProjects(program, javaTypeFactory, builder, null, root, inputGetter, correlates);
    for (int i = 0; i < list.size(); i++) {
        builder.add(Expressions.statement(Expressions.assign(Expressions.arrayIndex(outputValues_, Expressions.constant(i)), list.get(i))));
    }
    return builder;
}