Examples with CallSiteBinder com.facebook.presto.sql.gen.CallSiteBinder used on opensource projects

Example 1 with CallSiteBinder

use of com.facebook.presto.sql.gen.CallSiteBinder in project presto by prestodb.

the class AbstractMinMaxBy method generateAggregation.

private InternalAggregationFunction generateAggregation(Type valueType, Type keyType, FunctionRegistry functionRegistry) {
    Class<?> stateClazz = getStateClass(keyType.getJavaType(), valueType.getJavaType());
    Map<String, Type> stateFieldTypes = ImmutableMap.of("First", keyType, "Second", valueType);
    DynamicClassLoader classLoader = new DynamicClassLoader(getClass().getClassLoader());
    AccumulatorStateFactory<?> stateFactory = StateCompiler.generateStateFactory(stateClazz, stateFieldTypes, classLoader);
    AccumulatorStateSerializer<?> stateSerializer = StateCompiler.generateStateSerializer(stateClazz, stateFieldTypes, classLoader);
    Type intermediateType = stateSerializer.getSerializedType();
    List<Type> inputTypes = ImmutableList.of(valueType, keyType);
    CallSiteBinder binder = new CallSiteBinder();
    OperatorType operator = min ? LESS_THAN : GREATER_THAN;
    MethodHandle compareMethod = functionRegistry.getScalarFunctionImplementation(functionRegistry.resolveOperator(operator, ImmutableList.of(keyType, keyType))).getMethodHandle();
    ClassDefinition definition = new ClassDefinition(a(PUBLIC, FINAL), makeClassName("processMaxOrMinBy"), type(Object.class));
    definition.declareDefaultConstructor(a(PRIVATE));
    generateInputMethod(definition, binder, compareMethod, keyType, valueType, stateClazz);
    generateCombineMethod(definition, binder, compareMethod, keyType, valueType, stateClazz);
    generateOutputMethod(definition, binder, valueType, stateClazz);
    Class<?> generatedClass = defineClass(definition, Object.class, binder.getBindings(), classLoader);
    MethodHandle inputMethod = methodHandle(generatedClass, "input", stateClazz, Block.class, Block.class, int.class);
    MethodHandle combineMethod = methodHandle(generatedClass, "combine", stateClazz, stateClazz);
    MethodHandle outputMethod = methodHandle(generatedClass, "output", stateClazz, BlockBuilder.class);
    AggregationMetadata metadata = new AggregationMetadata(generateAggregationName(getSignature().getName(), valueType.getTypeSignature(), inputTypes.stream().map(Type::getTypeSignature).collect(toImmutableList())), createInputParameterMetadata(valueType, keyType), inputMethod, combineMethod, outputMethod, stateClazz, stateSerializer, stateFactory, valueType);
    GenericAccumulatorFactoryBinder factory = AccumulatorCompiler.generateAccumulatorFactoryBinder(metadata, classLoader);
    return new InternalAggregationFunction(getSignature().getName(), inputTypes, intermediateType, valueType, true, factory);
}

Example 2 with CallSiteBinder

use of com.facebook.presto.sql.gen.CallSiteBinder in project presto by prestodb.

the class ArrayToArrayCast method generateArrayCast.

private static Class<?> generateArrayCast(TypeManager typeManager, Signature elementCastSignature, ScalarFunctionImplementation elementCast) {
    CallSiteBinder binder = new CallSiteBinder();
    ClassDefinition definition = new ClassDefinition(a(PUBLIC, FINAL), CompilerUtils.makeClassName(Joiner.on("$").join("ArrayCast", elementCastSignature.getArgumentTypes().get(0), elementCastSignature.getReturnType())), type(Object.class));
    Parameter session = arg("session", ConnectorSession.class);
    Parameter value = arg("value", Block.class);
    MethodDefinition method = definition.declareMethod(a(PUBLIC, STATIC), "castArray", type(Block.class), session, value);
    Scope scope = method.getScope();
    BytecodeBlock body = method.getBody();
    Variable wasNull = scope.declareVariable(boolean.class, "wasNull");
    body.append(wasNull.set(constantBoolean(false)));
    // cast map elements
    Type fromElementType = typeManager.getType(elementCastSignature.getArgumentTypes().get(0));
    Type toElementType = typeManager.getType(elementCastSignature.getReturnType());
    CachedInstanceBinder cachedInstanceBinder = new CachedInstanceBinder(definition, binder);
    ArrayMapBytecodeExpression newArray = ArrayGeneratorUtils.map(scope, cachedInstanceBinder, fromElementType, toElementType, value, elementCastSignature.getName(), elementCast);
    // return the block
    body.append(newArray.ret());
    MethodDefinition constructorDefinition = definition.declareConstructor(a(PUBLIC));
    BytecodeBlock constructorBody = constructorDefinition.getBody();
    Variable thisVariable = constructorDefinition.getThis();
    constructorBody.comment("super();").append(thisVariable).invokeConstructor(Object.class);
    cachedInstanceBinder.generateInitializations(thisVariable, constructorBody);
    constructorBody.ret();
    return defineClass(definition, Object.class, binder.getBindings(), ArrayToArrayCast.class.getClassLoader());
}

Example 3 with CallSiteBinder

use of com.facebook.presto.sql.gen.CallSiteBinder in project presto by prestodb.

the class RowToRowCast method generateRowCast.

private static Class<?> generateRowCast(Type fromType, Type toType, FunctionRegistry functionRegistry) {
    List<Type> toTypes = toType.getTypeParameters();
    List<Type> fromTypes = fromType.getTypeParameters();
    CallSiteBinder binder = new CallSiteBinder();
    // Embed the MD5 hash code of input and output types into the generated class name instead of the raw type names,
    // which could prevent the class name from hitting the length limitation and invalid characters.
    byte[] md5Suffix = Hashing.md5().hashBytes((fromType + "$" + toType).getBytes()).asBytes();
    ClassDefinition definition = new ClassDefinition(a(PUBLIC, FINAL), CompilerUtils.makeClassName(Joiner.on("$").join("RowCast", BaseEncoding.base16().encode(md5Suffix))), type(Object.class));
    Parameter session = arg("session", ConnectorSession.class);
    Parameter value = arg("value", Block.class);
    MethodDefinition method = definition.declareMethod(a(PUBLIC, STATIC), "castRow", type(Block.class), session, value);
    Scope scope = method.getScope();
    BytecodeBlock body = method.getBody();
    Variable wasNull = scope.declareVariable(boolean.class, "wasNull");
    Variable blockBuilder = scope.createTempVariable(BlockBuilder.class);
    body.append(wasNull.set(constantBoolean(false)));
    CachedInstanceBinder cachedInstanceBinder = new CachedInstanceBinder(definition, binder);
    // create the interleave block builder
    body.newObject(InterleavedBlockBuilder.class).dup().append(constantType(binder, toType).invoke("getTypeParameters", List.class)).append(newInstance(BlockBuilderStatus.class)).append(constantInt(toTypes.size())).invokeConstructor(InterleavedBlockBuilder.class, List.class, BlockBuilderStatus.class, int.class).putVariable(blockBuilder);
    // loop through to append member blocks
    for (int i = 0; i < toTypes.size(); i++) {
        Signature signature = internalOperator(CAST.name(), toTypes.get(i).getTypeSignature(), ImmutableList.of(fromTypes.get(i).getTypeSignature()));
        ScalarFunctionImplementation function = functionRegistry.getScalarFunctionImplementation(signature);
        Type currentFromType = fromTypes.get(i);
        if (currentFromType.equals(UNKNOWN)) {
            body.append(blockBuilder.invoke("appendNull", BlockBuilder.class).pop());
            continue;
        }
        BytecodeExpression fromElement = constantType(binder, currentFromType).getValue(value, constantInt(i));
        BytecodeExpression toElement = invokeFunction(scope, cachedInstanceBinder, signature.getName(), function, fromElement);
        IfStatement ifElementNull = new IfStatement("if the element in the row type is null...");
        ifElementNull.condition(value.invoke("isNull", boolean.class, constantInt(i))).ifTrue(blockBuilder.invoke("appendNull", BlockBuilder.class).pop()).ifFalse(constantType(binder, toTypes.get(i)).writeValue(blockBuilder, toElement));
        body.append(ifElementNull);
    }
    // call blockBuilder.build()
    body.append(blockBuilder.invoke("build", Block.class)).retObject();
    // create constructor
    MethodDefinition constructorDefinition = definition.declareConstructor(a(PUBLIC));
    BytecodeBlock constructorBody = constructorDefinition.getBody();
    Variable thisVariable = constructorDefinition.getThis();
    constructorBody.comment("super();").append(thisVariable).invokeConstructor(Object.class);
    cachedInstanceBinder.generateInitializations(thisVariable, constructorBody);
    constructorBody.ret();
    return defineClass(definition, Object.class, binder.getBindings(), RowToRowCast.class.getClassLoader());
}

Example 4 with CallSiteBinder

use of com.facebook.presto.sql.gen.CallSiteBinder in project presto by prestodb.

the class MapFilterFunction method generateFilter.

private static MethodHandle generateFilter(Type keyType, Type valueType) {
    CallSiteBinder binder = new CallSiteBinder();
    MapType mapType = new MapType(keyType, valueType);
    Class<?> keyJavaType = Primitives.wrap(keyType.getJavaType());
    Class<?> valueJavaType = Primitives.wrap(valueType.getJavaType());
    ClassDefinition definition = new ClassDefinition(a(PUBLIC, FINAL), makeClassName("MapFilter"), type(Object.class));
    definition.declareDefaultConstructor(a(PRIVATE));
    Parameter block = arg("block", Block.class);
    Parameter function = arg("function", MethodHandle.class);
    MethodDefinition method = definition.declareMethod(a(PUBLIC, STATIC), "filter", type(Block.class), ImmutableList.of(block, function));
    BytecodeBlock body = method.getBody();
    Scope scope = method.getScope();
    Variable positionCount = scope.declareVariable(int.class, "positionCount");
    Variable position = scope.declareVariable(int.class, "position");
    Variable blockBuilder = scope.declareVariable(BlockBuilder.class, "blockBuilder");
    Variable keyElement = scope.declareVariable(keyJavaType, "keyElement");
    Variable valueElement = scope.declareVariable(valueJavaType, "valueElement");
    Variable keep = scope.declareVariable(Boolean.class, "keep");
    // invoke block.getPositionCount()
    body.append(positionCount.set(block.invoke("getPositionCount", int.class)));
    // create the interleaved block builder
    body.append(blockBuilder.set(newInstance(InterleavedBlockBuilder.class, constantType(binder, mapType).invoke("getTypeParameters", List.class), newInstance(BlockBuilderStatus.class), positionCount)));
    SqlTypeBytecodeExpression keySqlType = constantType(binder, keyType);
    BytecodeNode loadKeyElement;
    if (!keyType.equals(UNKNOWN)) {
        // key element must be non-null
        loadKeyElement = new BytecodeBlock().append(keyElement.set(keySqlType.getValue(block, position).cast(keyJavaType)));
    } else {
        loadKeyElement = new BytecodeBlock().append(keyElement.set(constantNull(keyJavaType)));
    }
    SqlTypeBytecodeExpression valueSqlType = constantType(binder, valueType);
    BytecodeNode loadValueElement;
    if (!valueType.equals(UNKNOWN)) {
        loadValueElement = new IfStatement().condition(block.invoke("isNull", boolean.class, add(position, constantInt(1)))).ifTrue(valueElement.set(constantNull(valueJavaType))).ifFalse(valueElement.set(valueSqlType.getValue(block, add(position, constantInt(1))).cast(valueJavaType)));
    } else {
        loadValueElement = new BytecodeBlock().append(valueElement.set(constantNull(valueJavaType)));
    }
    body.append(new ForLoop().initialize(position.set(constantInt(0))).condition(lessThan(position, positionCount)).update(incrementVariable(position, (byte) 2)).body(new BytecodeBlock().append(loadKeyElement).append(loadValueElement).append(keep.set(function.invoke("invokeExact", Boolean.class, keyElement, valueElement))).append(new IfStatement("if (keep != null && keep) ...").condition(and(notEqual(keep, constantNull(Boolean.class)), keep.cast(boolean.class))).ifTrue(new BytecodeBlock().append(keySqlType.invoke("appendTo", void.class, block, position, blockBuilder)).append(valueSqlType.invoke("appendTo", void.class, block, add(position, constantInt(1)), blockBuilder))))));
    body.append(blockBuilder.invoke("build", Block.class).ret());
    Class<?> generatedClass = defineClass(definition, Object.class, binder.getBindings(), MapFilterFunction.class.getClassLoader());
    return methodHandle(generatedClass, "filter", Block.class, MethodHandle.class);
}