Examples with ClassDefinition com.facebook.presto.bytecode.ClassDefinition used on opensource projects

Example 6 with ClassDefinition

use of com.facebook.presto.bytecode.ClassDefinition in project presto by prestodb.

the class CursorProcessorCompiler method generateMethods.

@Override
public void generateMethods(SqlFunctionProperties sqlFunctionProperties, ClassDefinition classDefinition, CallSiteBinder callSiteBinder, RowExpression filter, List<RowExpression> projections) {
    CachedInstanceBinder cachedInstanceBinder = new CachedInstanceBinder(classDefinition, callSiteBinder);
    List<RowExpression> rowExpressions = ImmutableList.<RowExpression>builder().addAll(projections).add(filter).build();
    Map<LambdaDefinitionExpression, CompiledLambda> compiledLambdaMap = generateMethodsForLambda(classDefinition, callSiteBinder, cachedInstanceBinder, rowExpressions, metadata, sqlFunctionProperties, sessionFunctions, "");
    Map<VariableReferenceExpression, CommonSubExpressionFields> cseFields = ImmutableMap.of();
    RowExpressionCompiler compiler = new RowExpressionCompiler(classDefinition, callSiteBinder, cachedInstanceBinder, fieldReferenceCompiler(cseFields), metadata, sqlFunctionProperties, sessionFunctions, compiledLambdaMap);
    if (isOptimizeCommonSubExpressions) {
        Map<Integer, Map<RowExpression, VariableReferenceExpression>> commonSubExpressionsByLevel = collectCSEByLevel(rowExpressions);
        if (!commonSubExpressionsByLevel.isEmpty()) {
            cseFields = declareCommonSubExpressionFields(classDefinition, commonSubExpressionsByLevel);
            compiler = new RowExpressionCompiler(classDefinition, callSiteBinder, cachedInstanceBinder, fieldReferenceCompiler(cseFields), metadata, sqlFunctionProperties, sessionFunctions, compiledLambdaMap);
            generateCommonSubExpressionMethods(classDefinition, compiler, commonSubExpressionsByLevel, cseFields);
            Map<RowExpression, VariableReferenceExpression> commonSubExpressions = commonSubExpressionsByLevel.values().stream().flatMap(m -> m.entrySet().stream()).collect(toImmutableMap(Map.Entry::getKey, Map.Entry::getValue));
            projections = rewriteRowExpressionsWithCSE(projections, commonSubExpressions);
            filter = rewriteRowExpressionsWithCSE(ImmutableList.of(filter), commonSubExpressions).get(0);
        }
    }
    generateProcessMethod(classDefinition, projections.size(), cseFields);
    generateFilterMethod(classDefinition, compiler, filter);
    for (int i = 0; i < projections.size(); i++) {
        String methodName = "project_" + i;
        generateProjectMethod(classDefinition, compiler, methodName, projections.get(i));
    }
    MethodDefinition constructorDefinition = classDefinition.declareConstructor(a(PUBLIC));
    BytecodeBlock constructorBody = constructorDefinition.getBody();
    Variable thisVariable = constructorDefinition.getThis();
    constructorBody.comment("super();").append(thisVariable).invokeConstructor(Object.class);
    initializeCommonSubExpressionFields(cseFields.values(), thisVariable, constructorBody);
    cachedInstanceBinder.generateInitializations(thisVariable, constructorBody);
    constructorBody.ret();
}

Example 7 with ClassDefinition

use of com.facebook.presto.bytecode.ClassDefinition in project presto by prestodb.

the class PageFunctionCompiler method compileFilterInternal.

private Supplier<PageFilter> compileFilterInternal(SqlFunctionProperties sqlFunctionProperties, Map<SqlFunctionId, SqlInvokedFunction> sessionFunctions, RowExpression filter, boolean isOptimizeCommonSubExpression, Optional<String> classNameSuffix) {
    requireNonNull(filter, "filter is null");
    PageFieldsToInputParametersRewriter.Result result = rewritePageFieldsToInputParameters(filter);
    CallSiteBinder callSiteBinder = new CallSiteBinder();
    ClassDefinition classDefinition = defineFilterClass(sqlFunctionProperties, sessionFunctions, result.getRewrittenExpression(), result.getInputChannels(), callSiteBinder, isOptimizeCommonSubExpression, classNameSuffix);
    Class<? extends PageFilter> functionClass;
    try {
        functionClass = defineClass(classDefinition, PageFilter.class, callSiteBinder.getBindings(), getClass().getClassLoader());
    } catch (PrestoException prestoException) {
        throw prestoException;
    } catch (Exception e) {
        throw new PrestoException(COMPILER_ERROR, filter.toString(), e.getCause());
    }
    return () -> {
        try {
            return functionClass.getConstructor().newInstance();
        } catch (ReflectiveOperationException e) {
            throw new PrestoException(COMPILER_ERROR, e);
        }
    };
}

Example 8 with ClassDefinition

use of com.facebook.presto.bytecode.ClassDefinition in project presto by prestodb.

the class PageFunctionCompiler method definePageProjectWorkClass.

private ClassDefinition definePageProjectWorkClass(SqlFunctionProperties sqlFunctionProperties, Map<SqlFunctionId, SqlInvokedFunction> sessionFunctions, List<RowExpression> projections, CallSiteBinder callSiteBinder, boolean isOptimizeCommonSubExpression, Optional<String> classNameSuffix) {
    ClassDefinition classDefinition = new ClassDefinition(a(PUBLIC, FINAL), generateProjectionWorkClassName(classNameSuffix), type(Object.class), type(Work.class));
    FieldDefinition blockBuilderFields = classDefinition.declareField(a(PRIVATE), "blockBuilders", type(List.class, BlockBuilder.class));
    FieldDefinition propertiesField = classDefinition.declareField(a(PRIVATE), "properties", SqlFunctionProperties.class);
    FieldDefinition pageField = classDefinition.declareField(a(PRIVATE), "page", Page.class);
    FieldDefinition selectedPositionsField = classDefinition.declareField(a(PRIVATE), "selectedPositions", SelectedPositions.class);
    FieldDefinition nextIndexOrPositionField = classDefinition.declareField(a(PRIVATE), "nextIndexOrPosition", int.class);
    FieldDefinition resultField = classDefinition.declareField(a(PRIVATE), "result", List.class);
    CachedInstanceBinder cachedInstanceBinder = new CachedInstanceBinder(classDefinition, callSiteBinder);
    // process
    generateProcessMethod(classDefinition, blockBuilderFields, projections.size(), propertiesField, pageField, selectedPositionsField, nextIndexOrPositionField, resultField);
    // getResult
    MethodDefinition method = classDefinition.declareMethod(a(PUBLIC), "getResult", type(Object.class), ImmutableList.of());
    method.getBody().append(method.getThis().getField(resultField)).ret(Object.class);
    Map<LambdaDefinitionExpression, CompiledLambda> compiledLambdaMap = generateMethodsForLambda(classDefinition, callSiteBinder, cachedInstanceBinder, projections, metadata, sqlFunctionProperties, sessionFunctions, "");
    // cse
    Map<VariableReferenceExpression, CommonSubExpressionFields> cseFields = ImmutableMap.of();
    RowExpressionCompiler compiler = new RowExpressionCompiler(classDefinition, callSiteBinder, cachedInstanceBinder, new FieldAndVariableReferenceCompiler(callSiteBinder, cseFields), metadata, sqlFunctionProperties, sessionFunctions, compiledLambdaMap);
    if (isOptimizeCommonSubExpression) {
        Map<Integer, Map<RowExpression, VariableReferenceExpression>> commonSubExpressionsByLevel = collectCSEByLevel(projections);
        if (!commonSubExpressionsByLevel.isEmpty()) {
            cseFields = declareCommonSubExpressionFields(classDefinition, commonSubExpressionsByLevel);
            compiler = new RowExpressionCompiler(classDefinition, callSiteBinder, cachedInstanceBinder, new FieldAndVariableReferenceCompiler(callSiteBinder, cseFields), metadata, sqlFunctionProperties, sessionFunctions, compiledLambdaMap);
            generateCommonSubExpressionMethods(classDefinition, compiler, commonSubExpressionsByLevel, cseFields);
            Map<RowExpression, VariableReferenceExpression> commonSubExpressions = commonSubExpressionsByLevel.values().stream().flatMap(m -> m.entrySet().stream()).collect(toImmutableMap(Map.Entry::getKey, Map.Entry::getValue));
            projections = projections.stream().map(projection -> rewriteExpressionWithCSE(projection, commonSubExpressions)).collect(toImmutableList());
            if (log.isDebugEnabled()) {
                log.debug("Extracted %d common sub-expressions", commonSubExpressions.size());
                commonSubExpressions.entrySet().forEach(entry -> log.debug("\t%s = %s", entry.getValue(), entry.getKey()));
                log.debug("Rewrote %d projections: %s", projections.size(), Joiner.on(", ").join(projections));
            }
        }
    }
    // evaluate
    generateEvaluateMethod(classDefinition, compiler, projections, blockBuilderFields, cseFields);
    // constructor
    Parameter blockBuilders = arg("blockBuilders", type(List.class, BlockBuilder.class));
    Parameter properties = arg("properties", SqlFunctionProperties.class);
    Parameter page = arg("page", Page.class);
    Parameter selectedPositions = arg("selectedPositions", SelectedPositions.class);
    MethodDefinition constructorDefinition = classDefinition.declareConstructor(a(PUBLIC), blockBuilders, properties, page, selectedPositions);
    BytecodeBlock body = constructorDefinition.getBody();
    Variable thisVariable = constructorDefinition.getThis();
    body.comment("super();").append(thisVariable).invokeConstructor(Object.class).append(thisVariable.setField(blockBuilderFields, invokeStatic(ImmutableList.class, "copyOf", ImmutableList.class, blockBuilders.cast(Collection.class)))).append(thisVariable.setField(propertiesField, properties)).append(thisVariable.setField(pageField, page)).append(thisVariable.setField(selectedPositionsField, selectedPositions)).append(thisVariable.setField(nextIndexOrPositionField, selectedPositions.invoke("getOffset", int.class))).append(thisVariable.setField(resultField, constantNull(Block.class)));
    initializeCommonSubExpressionFields(cseFields.values(), thisVariable, body);
    cachedInstanceBinder.generateInitializations(thisVariable, body);
    body.ret();
    return classDefinition;
}

Example 9 with ClassDefinition

use of com.facebook.presto.bytecode.ClassDefinition in project presto by prestodb.

the class RowExpressionPredicateCompiler method compilePredicateInternal.

private Supplier<Predicate> compilePredicateInternal(SqlFunctionProperties sqlFunctionProperties, Map<SqlFunctionId, SqlInvokedFunction> sessionFunctions, RowExpression predicate) {
    requireNonNull(predicate, "predicate is null");
    PageFieldsToInputParametersRewriter.Result result = rewritePageFieldsToInputParameters(predicate);
    int[] inputChannels = result.getInputChannels().getInputChannels().stream().mapToInt(Integer::intValue).toArray();
    CallSiteBinder callSiteBinder = new CallSiteBinder();
    ClassDefinition classDefinition = definePredicateClass(sqlFunctionProperties, sessionFunctions, result.getRewrittenExpression(), inputChannels, callSiteBinder);
    Class<? extends Predicate> predicateClass;
    try {
        predicateClass = defineClass(classDefinition, Predicate.class, callSiteBinder.getBindings(), getClass().getClassLoader());
    } catch (Exception e) {
        throw new PrestoException(COMPILER_ERROR, predicate.toString(), e.getCause());
    }
    return () -> {
        try {
            return predicateClass.getConstructor().newInstance();
        } catch (ReflectiveOperationException e) {
            throw new PrestoException(COMPILER_ERROR, e);
        }
    };
}

Example 10 with ClassDefinition

use of com.facebook.presto.bytecode.ClassDefinition in project presto by prestodb.

the class JoinFilterFunctionCompiler method compileInternalJoinFilterFunction.

private Class<? extends InternalJoinFilterFunction> compileInternalJoinFilterFunction(SqlFunctionProperties sqlFunctionProperties, Map<SqlFunctionId, SqlInvokedFunction> sessionFunctions, RowExpression filterExpression, int leftBlocksSize) {
    ClassDefinition classDefinition = new ClassDefinition(a(PUBLIC, FINAL), makeClassName("JoinFilterFunction"), type(Object.class), type(InternalJoinFilterFunction.class));
    CallSiteBinder callSiteBinder = new CallSiteBinder();
    new JoinFilterFunctionCompiler(metadata).generateMethods(sqlFunctionProperties, sessionFunctions, classDefinition, callSiteBinder, filterExpression, leftBlocksSize);
    // 
    // toString method
    // 
    generateToString(classDefinition, callSiteBinder, toStringHelper(classDefinition.getType().getJavaClassName()).add("filter", filterExpression).add("leftBlocksSize", leftBlocksSize).toString());
    return defineClass(classDefinition, InternalJoinFilterFunction.class, callSiteBinder.getBindings(), getClass().getClassLoader());
}