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Example 1 with Variable

use of com.google.api.generator.engine.ast.Variable in project gapic-generator-java by googleapis.

the class AbstractServiceStubSettingsClassComposer method createNestedClassConstructorMethods.

private static List<MethodDefinition> createNestedClassConstructorMethods(Service service, GapicServiceConfig serviceConfig, Map<String, VariableExpr> nestedMethodSettingsMemberVarExprs, TypeStore typeStore) {
    TypeNode builderType = typeStore.get(NESTED_BUILDER_CLASS_NAME);
    List<MethodDefinition> ctorMethods = new ArrayList<>();
    // First argument-less contructor.
    ctorMethods.add(MethodDefinition.constructorBuilder().setScope(ScopeNode.PROTECTED).setReturnType(builderType).setBody(Arrays.asList(ExprStatement.withExpr(ReferenceConstructorExpr.thisBuilder().setType(builderType).setArguments(CastExpr.builder().setType(FIXED_TYPESTORE.get("ClientContext")).setExpr(ValueExpr.createNullExpr()).build()).build()))).build());
    // Second ctor that takes a clientContext argument.
    VariableExpr clientContextVarExpr = VariableExpr.withVariable(Variable.builder().setType(FIXED_TYPESTORE.get("ClientContext")).setName("clientContext").build());
    Reference pagedSettingsBuilderRef = ConcreteReference.withClazz(PagedCallSettings.Builder.class);
    Reference batchingSettingsBuilderRef = ConcreteReference.withClazz(BatchingCallSettings.Builder.class);
    Reference unaryCallSettingsBuilderRef = ConcreteReference.withClazz(UnaryCallSettings.Builder.class);
    Function<TypeNode, Boolean> isUnaryCallSettingsBuilderFn = t -> t.reference().copyAndSetGenerics(ImmutableList.of()).equals(unaryCallSettingsBuilderRef);
    Function<TypeNode, Boolean> isPagedCallSettingsBuilderFn = t -> t.reference().copyAndSetGenerics(ImmutableList.of()).equals(pagedSettingsBuilderRef);
    Function<TypeNode, Boolean> isBatchingCallSettingsBuilderFn = t -> t.reference().copyAndSetGenerics(ImmutableList.of()).equals(batchingSettingsBuilderRef);
    Function<TypeNode, TypeNode> builderToCallSettingsFn = t -> TypeNode.withReference(VaporReference.builder().setName(String.join(DOT, t.reference().enclosingClassNames())).setPakkage(t.reference().pakkage()).build());
    List<Statement> ctorBodyStatements = new ArrayList<>();
    ctorBodyStatements.add(ExprStatement.withExpr(ReferenceConstructorExpr.superBuilder().setType(builderType).setArguments(clientContextVarExpr).build()));
    ctorBodyStatements.add(EMPTY_LINE_STATEMENT);
    ctorBodyStatements.addAll(nestedMethodSettingsMemberVarExprs.entrySet().stream().map(e -> {
        // TODO(miraleung): Extract this into another method.
        // Name is fooBarSettings.
        VariableExpr varExpr = e.getValue();
        TypeNode varType = varExpr.type();
        Preconditions.checkState(e.getKey().endsWith(SETTINGS_LITERAL), String.format("%s expected to end with \"Settings\"", e.getKey()));
        String methodName = getMethodNameFromSettingsVarName(e.getKey());
        if (!isPagedCallSettingsBuilderFn.apply(varType)) {
            if (!isBatchingCallSettingsBuilderFn.apply(varType)) {
                boolean isUnaryCallSettings = isUnaryCallSettingsBuilderFn.apply(varType);
                Expr builderExpr = AssignmentExpr.builder().setVariableExpr(varExpr).setValueExpr(MethodInvocationExpr.builder().setStaticReferenceType(builderToCallSettingsFn.apply(varExpr.type())).setMethodName(isUnaryCallSettings ? "newUnaryCallSettingsBuilder" : "newBuilder").setReturnType(varExpr.type()).build()).build();
                return ExprStatement.withExpr(builderExpr);
            }
            Expr newBatchingSettingsExpr = MethodInvocationExpr.builder().setStaticReferenceType(FIXED_TYPESTORE.get("BatchingSettings")).setMethodName("newBuilder").build();
            newBatchingSettingsExpr = MethodInvocationExpr.builder().setExprReferenceExpr(newBatchingSettingsExpr).setMethodName("build").build();
            String batchingDescVarName = String.format(BATCHING_DESC_PATTERN, JavaStyle.toUpperSnakeCase(methodName));
            Expr batchingSettingsBuilderExpr = MethodInvocationExpr.builder().setStaticReferenceType(builderToCallSettingsFn.apply(varType)).setMethodName("newBuilder").setArguments(VariableExpr.withVariable(Variable.builder().setType(FIXED_TYPESTORE.get("BatchingDescriptor")).setName(batchingDescVarName).build())).build();
            batchingSettingsBuilderExpr = MethodInvocationExpr.builder().setExprReferenceExpr(batchingSettingsBuilderExpr).setMethodName("setBatchingSettings").setArguments(newBatchingSettingsExpr).setReturnType(varType).build();
            Expr builderExpr = AssignmentExpr.builder().setVariableExpr(varExpr).setValueExpr(batchingSettingsBuilderExpr).build();
            return ExprStatement.withExpr(builderExpr);
        }
        String memberVarName = String.format(PAGED_RESPONSE_FACTORY_PATTERN, JavaStyle.toUpperSnakeCase(methodName));
        VariableExpr argVar = VariableExpr.withVariable(Variable.builder().setType(FIXED_TYPESTORE.get("PagedListResponseFactory")).setName(memberVarName).build());
        Expr builderExpr = AssignmentExpr.builder().setVariableExpr(varExpr).setValueExpr(MethodInvocationExpr.builder().setStaticReferenceType(builderToCallSettingsFn.apply(varExpr.type())).setMethodName("newBuilder").setArguments(argVar).setReturnType(varExpr.type()).build()).build();
        return ExprStatement.withExpr(builderExpr);
    }).collect(Collectors.toList()));
    Expr unaryMethodSettingsBuildersAssignExpr = AssignmentExpr.builder().setVariableExpr(NESTED_UNARY_METHOD_SETTINGS_BUILDERS_VAR_EXPR).setValueExpr(MethodInvocationExpr.builder().setStaticReferenceType(FIXED_TYPESTORE.get("ImmutableList")).setGenerics(NESTED_UNARY_METHOD_SETTINGS_BUILDERS_VAR_EXPR.type().reference().generics()).setMethodName("of").setArguments(nestedMethodSettingsMemberVarExprs.values().stream().filter(v -> isUnaryCallSettingsBuilderFn.apply(v.type()) || isPagedCallSettingsBuilderFn.apply(v.type()) || isBatchingCallSettingsBuilderFn.apply(v.type())).collect(Collectors.toList())).setReturnType(NESTED_UNARY_METHOD_SETTINGS_BUILDERS_VAR_EXPR.type()).build()).build();
    ctorBodyStatements.add(EMPTY_LINE_STATEMENT);
    ctorBodyStatements.add(ExprStatement.withExpr(unaryMethodSettingsBuildersAssignExpr));
    ctorBodyStatements.add(ExprStatement.withExpr(MethodInvocationExpr.builder().setMethodName("initDefaults").setArguments(ValueExpr.withValue(ThisObjectValue.withType(builderType))).build()));
    ctorMethods.add(MethodDefinition.constructorBuilder().setScope(ScopeNode.PROTECTED).setReturnType(builderType).setArguments(clientContextVarExpr.toBuilder().setIsDecl(true).build()).setBody(ctorBodyStatements).build());
    // Third constructor that takes a ServiceStubSettings.
    TypeNode outerSettingsType = typeStore.get(ClassNames.getServiceStubSettingsClassName(service));
    VariableExpr settingsVarExpr = VariableExpr.withVariable(Variable.builder().setType(outerSettingsType).setName("settings").build());
    ctorBodyStatements = new ArrayList<>();
    ctorBodyStatements.add(ExprStatement.withExpr(ReferenceConstructorExpr.superBuilder().setType(builderType).setArguments(settingsVarExpr).build()));
    ctorBodyStatements.add(EMPTY_LINE_STATEMENT);
    // TODO(cleanup): Technically this should actually use the outer class's <method>Settings
    // members to avoid decoupling variable names.
    ctorBodyStatements.addAll(nestedMethodSettingsMemberVarExprs.values().stream().map(v -> ExprStatement.withExpr(AssignmentExpr.builder().setVariableExpr(v).setValueExpr(MethodInvocationExpr.builder().setExprReferenceExpr(VariableExpr.builder().setExprReferenceExpr(settingsVarExpr).setVariable(v.variable()).build()).setMethodName("toBuilder").setReturnType(v.type()).build()).build())).collect(Collectors.toList()));
    ctorBodyStatements.add(EMPTY_LINE_STATEMENT);
    ctorBodyStatements.add(ExprStatement.withExpr(unaryMethodSettingsBuildersAssignExpr));
    ctorMethods.add(MethodDefinition.constructorBuilder().setScope(ScopeNode.PROTECTED).setReturnType(builderType).setArguments(settingsVarExpr.toBuilder().setIsDecl(true).build()).setBody(ctorBodyStatements).build());
    return ctorMethods;
}
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Example 2 with Variable

use of com.google.api.generator.engine.ast.Variable in project gapic-generator-java by googleapis.

the class AbstractServiceStubSettingsClassComposer method createPagedListDescriptorAssignExpr.

private static Expr createPagedListDescriptorAssignExpr(VariableExpr pagedListDescVarExpr, Method method, TypeNode repeatedResponseType, String repeatedFieldName, Map<String, Message> messageTypes, TypeStore typeStore) {
    MethodDefinition.Builder methodStarterBuilder = MethodDefinition.builder().setIsOverride(true).setScope(ScopeNode.PUBLIC);
    List<MethodDefinition> anonClassMethods = new ArrayList<>();
    // Create emptyToken method.
    anonClassMethods.add(methodStarterBuilder.setReturnType(TypeNode.STRING).setName("emptyToken").setReturnExpr(ValueExpr.withValue(StringObjectValue.withValue(""))).build());
    // Create injectToken method.
    VariableExpr payloadVarExpr = VariableExpr.withVariable(Variable.builder().setType(method.inputType()).setName("payload").build());
    VariableExpr strTokenVarExpr = VariableExpr.withVariable(Variable.builder().setType(TypeNode.STRING).setName("token").build());
    TypeNode returnType = method.inputType();
    Expr newBuilderExpr = MethodInvocationExpr.builder().setStaticReferenceType(method.inputType()).setMethodName("newBuilder").setArguments(payloadVarExpr).build();
    Expr returnExpr = MethodInvocationExpr.builder().setExprReferenceExpr(newBuilderExpr).setMethodName("setPageToken").setArguments(strTokenVarExpr).build();
    returnExpr = MethodInvocationExpr.builder().setExprReferenceExpr(returnExpr).setMethodName("build").setReturnType(returnType).build();
    anonClassMethods.add(methodStarterBuilder.setReturnType(method.inputType()).setName("injectToken").setArguments(Arrays.asList(payloadVarExpr, strTokenVarExpr).stream().map(v -> v.toBuilder().setIsDecl(true).build()).collect(Collectors.toList())).setReturnExpr(returnExpr).build());
    // Create injectPageSize method.
    VariableExpr pageSizeVarExpr = VariableExpr.withVariable(Variable.builder().setType(TypeNode.INT).setName("pageSize").build());
    // Re-declare for clarity and easier readability.
    returnType = method.inputType();
    returnExpr = MethodInvocationExpr.builder().setExprReferenceExpr(newBuilderExpr).setMethodName("set" + JavaStyle.toUpperCamelCase(method.pageSizeFieldName())).setArguments(pageSizeVarExpr).build();
    returnExpr = MethodInvocationExpr.builder().setExprReferenceExpr(returnExpr).setMethodName("build").setReturnType(returnType).build();
    anonClassMethods.add(methodStarterBuilder.setReturnType(method.inputType()).setName("injectPageSize").setArguments(Arrays.asList(payloadVarExpr, pageSizeVarExpr).stream().map(v -> v.toBuilder().setIsDecl(true).build()).collect(Collectors.toList())).setReturnExpr(returnExpr).build());
    // TODO(miraleung): Test the edge cases where these proto fields aren't present.
    // Create extractPageSize method.
    returnType = TypeNode.INT_OBJECT;
    anonClassMethods.add(methodStarterBuilder.setReturnType(returnType).setName("extractPageSize").setArguments(payloadVarExpr.toBuilder().setIsDecl(true).build()).setReturnExpr(MethodInvocationExpr.builder().setExprReferenceExpr(payloadVarExpr).setMethodName("get" + JavaStyle.toUpperCamelCase(method.pageSizeFieldName())).setReturnType(returnType).build()).build());
    // Create extractNextToken method.
    returnType = TypeNode.STRING;
    payloadVarExpr = VariableExpr.withVariable(Variable.builder().setType(method.outputType()).setName("payload").build());
    anonClassMethods.add(methodStarterBuilder.setReturnType(returnType).setName("extractNextToken").setArguments(payloadVarExpr.toBuilder().setIsDecl(true).build()).setReturnExpr(MethodInvocationExpr.builder().setExprReferenceExpr(payloadVarExpr).setMethodName("getNextPageToken").setReturnType(returnType).build()).build());
    // Create extractResources method.
    returnType = TypeNode.withReference(ConcreteReference.builder().setClazz(Iterable.class).setGenerics(Arrays.asList(repeatedResponseType.reference())).build());
    Expr getResponsesExpr;
    Expr elseExpr;
    Expr thenExpr;
    if (repeatedResponseType.reference() != null && "java.util.Map.Entry".equals(repeatedResponseType.reference().fullName())) {
        getResponsesExpr = MethodInvocationExpr.builder().setExprReferenceExpr(payloadVarExpr).setMethodName(String.format("get%sMap", JavaStyle.toUpperCamelCase(repeatedFieldName))).setReturnType(returnType).build();
        thenExpr = MethodInvocationExpr.builder().setStaticReferenceType(TypeNode.withReference(ConcreteReference.withClazz(Collections.class))).setGenerics(Arrays.asList(repeatedResponseType.reference())).setMethodName("emptySet").setReturnType(returnType).build();
        elseExpr = MethodInvocationExpr.builder().setMethodName("entrySet").setExprReferenceExpr(MethodInvocationExpr.builder().setExprReferenceExpr(payloadVarExpr).setMethodName(String.format("get%sMap", JavaStyle.toUpperCamelCase(repeatedFieldName))).build()).setReturnType(returnType).build();
    } else {
        getResponsesExpr = MethodInvocationExpr.builder().setExprReferenceExpr(payloadVarExpr).setMethodName(String.format("get%sList", JavaStyle.toUpperCamelCase(repeatedFieldName))).setReturnType(returnType).build();
        thenExpr = MethodInvocationExpr.builder().setStaticReferenceType(TypeNode.withReference(ConcreteReference.withClazz(ImmutableList.class))).setGenerics(Arrays.asList(repeatedResponseType.reference())).setMethodName("of").setReturnType(returnType).build();
        elseExpr = getResponsesExpr;
    }
    // While protobufs should not be null, this null-check is needed to protect against NPEs
    // in paged iteration on clients that use legacy HTTP/JSON types, as these clients can
    // actually return null instead of an empty list.
    // Context:
    // Original issue: https://github.com/googleapis/google-cloud-java/issues/3736
    // Relevant discussion where this check was first added:
    // https://github.com/googleapis/google-cloud-java/pull/4499#discussion_r257057409
    Expr conditionExpr = RelationalOperationExpr.equalToWithExprs(getResponsesExpr, ValueExpr.createNullExpr());
    returnExpr = TernaryExpr.builder().setConditionExpr(conditionExpr).setThenExpr(thenExpr).setElseExpr(elseExpr).build();
    anonClassMethods.add(methodStarterBuilder.setReturnType(returnType).setName("extractResources").setArguments(payloadVarExpr.toBuilder().setIsDecl(true).build()).setReturnExpr(returnExpr).build());
    // Create the anonymous class.
    AnonymousClassExpr pagedListDescAnonClassExpr = AnonymousClassExpr.builder().setType(pagedListDescVarExpr.type()).setMethods(anonClassMethods).build();
    // Declare and assign the variable.
    return AssignmentExpr.builder().setVariableExpr(pagedListDescVarExpr.toBuilder().setIsDecl(true).setScope(ScopeNode.PRIVATE).setIsStatic(true).setIsFinal(true).build()).setValueExpr(pagedListDescAnonClassExpr).build();
}
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Example 3 with Variable

use of com.google.api.generator.engine.ast.Variable in project gapic-generator-java by googleapis.

the class JavaWriterVisitor method visit.

@Override
public void visit(VariableExpr variableExpr) {
    Variable variable = variableExpr.variable();
    TypeNode type = variable.type();
    ScopeNode scope = variableExpr.scope();
    // VariableExpr will handle isDecl and exprReferenceExpr edge cases.
    if (variableExpr.isDecl()) {
        if (!scope.equals(ScopeNode.LOCAL)) {
            scope.accept(this);
            space();
        }
        if (variableExpr.isStatic()) {
            buffer.append(STATIC);
            space();
        }
        if (variableExpr.isFinal()) {
            buffer.append(FINAL);
            space();
        }
        if (variableExpr.isVolatile()) {
            buffer.append(VOLATILE);
            space();
        }
        type.accept(this);
        if (!variableExpr.templateNodes().isEmpty()) {
            leftAngle();
            IntStream.range(0, variableExpr.templateNodes().size()).forEach(i -> {
                variableExpr.templateNodes().get(i).accept(this);
                if (i < variableExpr.templateNodes().size() - 1) {
                    buffer.append(COMMA);
                    space();
                }
            });
            rightAngle();
        }
        space();
    } else {
        // Expression or static reference.
        if (variableExpr.exprReferenceExpr() != null) {
            variableExpr.exprReferenceExpr().accept(this);
            buffer.append(DOT);
        } else if (variableExpr.staticReferenceType() != null) {
            variableExpr.staticReferenceType().accept(this);
            buffer.append(DOT);
        }
    }
    variable.identifier().accept(this);
}
Also used : Variable(com.google.api.generator.engine.ast.Variable) TypeNode(com.google.api.generator.engine.ast.TypeNode) ScopeNode(com.google.api.generator.engine.ast.ScopeNode)

Example 4 with Variable

use of com.google.api.generator.engine.ast.Variable in project gapic-generator-java by googleapis.

the class ServiceClientTestClassComposer method constructRpcTestCheckerLogic.

@Override
protected List<Statement> constructRpcTestCheckerLogic(Method method, Service service, boolean isRequestArg, Map<String, VariableExpr> classMemberVarExprs, VariableExpr requestVarExpr, Message requestMessage, List<VariableExpr> argExprs) {
    List<Expr> methodExprs = new ArrayList<>();
    List<Statement> methodStatements = new ArrayList<>();
    // Construct the request checker logic.
    VariableExpr actualRequestsVarExpr = VariableExpr.withVariable(Variable.builder().setType(TypeNode.withReference(ConcreteReference.builder().setClazz(List.class).setGenerics(Arrays.asList(ConcreteReference.withClazz(AbstractMessage.class))).build())).setName("actualRequests").build());
    methodExprs.add(AssignmentExpr.builder().setVariableExpr(actualRequestsVarExpr.toBuilder().setIsDecl(true).build()).setValueExpr(MethodInvocationExpr.builder().setExprReferenceExpr(classMemberVarExprs.get(getMockServiceVarName(service))).setMethodName("getRequests").setReturnType(actualRequestsVarExpr.type()).build()).build());
    methodExprs.add(MethodInvocationExpr.builder().setStaticReferenceType(FIXED_TYPESTORE.get("Assert")).setMethodName("assertEquals").setArguments(ValueExpr.withValue(PrimitiveValue.builder().setType(TypeNode.INT).setValue("1").build()), MethodInvocationExpr.builder().setExprReferenceExpr(actualRequestsVarExpr).setMethodName("size").build()).build());
    VariableExpr actualRequestVarExpr = VariableExpr.withVariable(Variable.builder().setType(method.inputType()).setName("actualRequest").build());
    Expr getFirstRequestExpr = MethodInvocationExpr.builder().setExprReferenceExpr(actualRequestsVarExpr).setMethodName("get").setArguments(ValueExpr.withValue(PrimitiveValue.builder().setType(TypeNode.INT).setValue("0").build())).setReturnType(FIXED_TYPESTORE.get("AbstractMessage")).build();
    getFirstRequestExpr = CastExpr.builder().setType(method.inputType()).setExpr(getFirstRequestExpr).build();
    methodExprs.add(AssignmentExpr.builder().setVariableExpr(actualRequestVarExpr.toBuilder().setIsDecl(true).build()).setValueExpr(getFirstRequestExpr).build());
    methodStatements.addAll(methodExprs.stream().map(e -> ExprStatement.withExpr(e)).collect(Collectors.toList()));
    methodExprs.clear();
    methodStatements.add(EMPTY_LINE_STATEMENT);
    // Assert field equality.
    if (isRequestArg) {
        // TODO(miraleung): Replace these with a simple request object equals?
        Preconditions.checkNotNull(requestVarExpr);
        Preconditions.checkNotNull(requestMessage);
        for (Field field : requestMessage.fields()) {
            String fieldGetterMethodNamePatternTemp = "get%s";
            if (field.isRepeated()) {
                fieldGetterMethodNamePatternTemp = field.isMap() ? "get%sMap" : "get%sList";
            }
            final String fieldGetterMethodNamePattern = fieldGetterMethodNamePatternTemp;
            Function<VariableExpr, Expr> checkExprFn = v -> MethodInvocationExpr.builder().setExprReferenceExpr(v).setMethodName(String.format(fieldGetterMethodNamePattern, JavaStyle.toUpperCamelCase(field.name()))).build();
            Expr expectedFieldExpr = checkExprFn.apply(requestVarExpr);
            Expr actualFieldExpr = checkExprFn.apply(actualRequestVarExpr);
            List<Expr> assertEqualsArguments = new ArrayList<>();
            assertEqualsArguments.add(expectedFieldExpr);
            assertEqualsArguments.add(actualFieldExpr);
            if (TypeNode.isFloatingPointType(field.type())) {
                boolean isFloat = field.type().equals(TypeNode.FLOAT);
                assertEqualsArguments.add(ValueExpr.withValue(PrimitiveValue.builder().setType(isFloat ? TypeNode.FLOAT : TypeNode.DOUBLE).setValue(String.format("0.0001%s", isFloat ? "f" : "")).build()));
            }
            methodExprs.add(MethodInvocationExpr.builder().setStaticReferenceType(FIXED_TYPESTORE.get("Assert")).setMethodName("assertEquals").setArguments(assertEqualsArguments).build());
        }
    } else {
        for (VariableExpr argVarExpr : argExprs) {
            Variable variable = argVarExpr.variable();
            String fieldGetterMethodNamePattern = "get%s";
            if (LIST_TYPE.isSupertypeOrEquals(variable.type())) {
                fieldGetterMethodNamePattern = "get%sList";
            } else if (MAP_TYPE.isSupertypeOrEquals(variable.type())) {
                fieldGetterMethodNamePattern = "get%sMap";
            }
            Expr actualFieldExpr = MethodInvocationExpr.builder().setExprReferenceExpr(actualRequestVarExpr).setMethodName(String.format(fieldGetterMethodNamePattern, JavaStyle.toUpperCamelCase(variable.identifier().name()))).build();
            Expr expectedFieldExpr = argVarExpr;
            if (RESOURCE_NAME_TYPE.isSupertypeOrEquals(argVarExpr.type())) {
                expectedFieldExpr = MethodInvocationExpr.builder().setExprReferenceExpr(argVarExpr).setMethodName("toString").build();
            }
            methodExprs.add(MethodInvocationExpr.builder().setStaticReferenceType(FIXED_TYPESTORE.get("Assert")).setMethodName("assertEquals").setArguments(expectedFieldExpr, actualFieldExpr).build());
        }
    }
    // Assert header equality.
    Expr headerKeyExpr = MethodInvocationExpr.builder().setStaticReferenceType(FIXED_TYPESTORE.get("ApiClientHeaderProvider")).setMethodName("getDefaultApiClientHeaderKey").build();
    Expr headerPatternExpr = MethodInvocationExpr.builder().setStaticReferenceType(FIXED_GRPC_TYPESTORE.get("GaxGrpcProperties")).setMethodName("getDefaultApiClientHeaderPattern").build();
    Expr headerSentExpr = MethodInvocationExpr.builder().setExprReferenceExpr(classMemberVarExprs.get("channelProvider")).setMethodName("isHeaderSent").setArguments(headerKeyExpr, headerPatternExpr).build();
    methodExprs.add(MethodInvocationExpr.builder().setStaticReferenceType(FIXED_TYPESTORE.get("Assert")).setMethodName("assertTrue").setArguments(headerSentExpr).build());
    methodStatements.addAll(methodExprs.stream().map(e -> ExprStatement.withExpr(e)).collect(Collectors.toList()));
    methodExprs.clear();
    return methodStatements;
}
Also used : LocalChannelProvider(com.google.api.gax.grpc.testing.LocalChannelProvider) Arrays(java.util.Arrays) BiFunction(java.util.function.BiFunction) Variable(com.google.api.generator.engine.ast.Variable) StringObjectValue(com.google.api.generator.engine.ast.StringObjectValue) GaxGrpcProperties(com.google.api.gax.grpc.GaxGrpcProperties) DefaultValueComposer(com.google.api.generator.gapic.composer.defaultvalue.DefaultValueComposer) Field(com.google.api.generator.gapic.model.Field) MethodDefinition(com.google.api.generator.engine.ast.MethodDefinition) TypeStore(com.google.api.generator.gapic.composer.store.TypeStore) Method(com.google.api.generator.gapic.model.Method) MethodArgument(com.google.api.generator.gapic.model.MethodArgument) PrimitiveValue(com.google.api.generator.engine.ast.PrimitiveValue) Map(java.util.Map) MockServiceHelper(com.google.api.gax.grpc.testing.MockServiceHelper) ConcreteReference(com.google.api.generator.engine.ast.ConcreteReference) ScopeNode(com.google.api.generator.engine.ast.ScopeNode) Collectors(java.util.stream.Collectors) ClassNames(com.google.api.generator.gapic.composer.utils.ClassNames) List(java.util.List) GapicContext(com.google.api.generator.gapic.model.GapicContext) MockGrpcService(com.google.api.gax.grpc.testing.MockGrpcService) ValueExpr(com.google.api.generator.engine.ast.ValueExpr) TypeNode(com.google.api.generator.engine.ast.TypeNode) EnumRefExpr(com.google.api.generator.engine.ast.EnumRefExpr) AbstractServiceClientTestClassComposer(com.google.api.generator.gapic.composer.common.AbstractServiceClientTestClassComposer) Function(java.util.function.Function) MockStreamObserver(com.google.api.gax.grpc.testing.MockStreamObserver) ArrayList(java.util.ArrayList) NewObjectExpr(com.google.api.generator.engine.ast.NewObjectExpr) Expr(com.google.api.generator.engine.ast.Expr) TryCatchStatement(com.google.api.generator.engine.ast.TryCatchStatement) AssignmentExpr(com.google.api.generator.engine.ast.AssignmentExpr) VariableExpr(com.google.api.generator.engine.ast.VariableExpr) InstanceofExpr(com.google.api.generator.engine.ast.InstanceofExpr) AbstractMessage(com.google.protobuf.AbstractMessage) CastExpr(com.google.api.generator.engine.ast.CastExpr) ExprStatement(com.google.api.generator.engine.ast.ExprStatement) AnnotationNode(com.google.api.generator.engine.ast.AnnotationNode) ResourceName(com.google.api.generator.gapic.model.ResourceName) StatusRuntimeException(io.grpc.StatusRuntimeException) ExecutionException(java.util.concurrent.ExecutionException) Statement(com.google.api.generator.engine.ast.Statement) Service(com.google.api.generator.gapic.model.Service) TreeMap(java.util.TreeMap) JavaStyle(com.google.api.generator.gapic.utils.JavaStyle) MethodInvocationExpr(com.google.api.generator.engine.ast.MethodInvocationExpr) Preconditions(com.google.common.base.Preconditions) StatusCode(com.google.api.gax.rpc.StatusCode) Message(com.google.api.generator.gapic.model.Message) Variable(com.google.api.generator.engine.ast.Variable) TryCatchStatement(com.google.api.generator.engine.ast.TryCatchStatement) ExprStatement(com.google.api.generator.engine.ast.ExprStatement) Statement(com.google.api.generator.engine.ast.Statement) ArrayList(java.util.ArrayList) Field(com.google.api.generator.gapic.model.Field) ValueExpr(com.google.api.generator.engine.ast.ValueExpr) EnumRefExpr(com.google.api.generator.engine.ast.EnumRefExpr) NewObjectExpr(com.google.api.generator.engine.ast.NewObjectExpr) Expr(com.google.api.generator.engine.ast.Expr) AssignmentExpr(com.google.api.generator.engine.ast.AssignmentExpr) VariableExpr(com.google.api.generator.engine.ast.VariableExpr) InstanceofExpr(com.google.api.generator.engine.ast.InstanceofExpr) CastExpr(com.google.api.generator.engine.ast.CastExpr) MethodInvocationExpr(com.google.api.generator.engine.ast.MethodInvocationExpr) VariableExpr(com.google.api.generator.engine.ast.VariableExpr) List(java.util.List) ArrayList(java.util.ArrayList)

Example 5 with Variable

use of com.google.api.generator.engine.ast.Variable in project gapic-generator-java by googleapis.

the class ResourceNameHelperClassComposer method createGetFieldValuesMapMethod.

private static MethodDefinition createGetFieldValuesMapMethod(ResourceName resourceName, TypeNode thisClassType, Map<String, VariableExpr> patternTokenVarExprs, List<List<String>> tokenHierarchies) {
    Reference strRef = TypeNode.STRING.reference();
    TypeNode mapBuilderType = TypeNode.withReference(ConcreteReference.builder().setClazz(ImmutableMap.Builder.class).setGenerics(Arrays.asList(strRef, strRef)).build());
    VariableExpr fieldMapBuilderVarExpr = VariableExpr.withVariable(Variable.builder().setName("fieldMapBuilder").setType(mapBuilderType).build());
    AssignmentExpr builderAssignExpr = AssignmentExpr.builder().setVariableExpr(fieldMapBuilderVarExpr.toBuilder().setIsDecl(true).build()).setValueExpr(MethodInvocationExpr.builder().setStaticReferenceType(FIXED_TYPESTORE.get("ImmutableMap")).setMethodName("builder").setReturnType(mapBuilderType).build()).build();
    // Special-cased PubSub handling.
    List<List<String>> processedTokenHierarchies = tokenHierarchies.stream().filter(tokens -> !tokens.contains(ResourceNameConstants.DELETED_TOPIC_LITERAL)).collect(Collectors.toList());
    // Innermost if-blocks.
    List<Statement> tokenIfStatements = new ArrayList<>();
    for (String token : getTokenSet(processedTokenHierarchies)) {
        VariableExpr tokenVarExpr = patternTokenVarExprs.get(token);
        Preconditions.checkNotNull(tokenVarExpr, String.format("No variable found for %s among %s", token, patternTokenVarExprs.keySet()));
        StringObjectValue tokenStrVal = StringObjectValue.withValue(token);
        MethodInvocationExpr putExpr = MethodInvocationExpr.builder().setExprReferenceExpr(fieldMapBuilderVarExpr).setMethodName("put").setArguments(ValueExpr.withValue(tokenStrVal), tokenVarExpr).build();
        Expr notNullCheckExpr = RelationalOperationExpr.notEqualToWithExprs(tokenVarExpr, ValueExpr.createNullExpr());
        tokenIfStatements.add(IfStatement.builder().setConditionExpr(notNullCheckExpr).setBody(Arrays.asList(ExprStatement.withExpr(putExpr))).build());
    }
    // Put the innermost if-statements and assignment expressions together.
    VariableExpr fieldValuesMapVarExpr = FIXED_CLASS_VARS.get("fieldValuesMap");
    AssignmentExpr fieldValuesMapAssignExpr = AssignmentExpr.builder().setVariableExpr(fieldValuesMapVarExpr).setValueExpr(MethodInvocationExpr.builder().setExprReferenceExpr(fieldMapBuilderVarExpr).setMethodName("build").setReturnType(fieldValuesMapVarExpr.type()).build()).build();
    List<Statement> middleIfBlockStatements = new ArrayList<>();
    middleIfBlockStatements.add(ExprStatement.withExpr(builderAssignExpr));
    middleIfBlockStatements.addAll(tokenIfStatements);
    middleIfBlockStatements.add(ExprStatement.withExpr(fieldValuesMapAssignExpr));
    // Middle if-block, i.e. `if (fieldValuesMap == null)`.
    Expr fieldValuesMapNullCheckExpr = RelationalOperationExpr.equalToWithExprs(fieldValuesMapVarExpr, ValueExpr.createNullExpr());
    IfStatement fieldValuesMapIfStatement = IfStatement.builder().setConditionExpr(fieldValuesMapNullCheckExpr).setBody(middleIfBlockStatements).build();
    // Outer if-block.
    IfStatement outerIfStatement = IfStatement.builder().setConditionExpr(fieldValuesMapNullCheckExpr).setBody(Arrays.asList(SynchronizedStatement.builder().setLock(ThisObjectValue.withType(thisClassType)).setBody(Arrays.asList(fieldValuesMapIfStatement)).build())).build();
    // Put the method together.
    TypeNode mapStringType = fieldValuesMapVarExpr.type();
    return MethodDefinition.builder().setIsOverride(true).setScope(ScopeNode.PUBLIC).setReturnType(mapStringType).setName("getFieldValuesMap").setBody(Arrays.asList(outerIfStatement)).setReturnExpr(fieldValuesMapVarExpr).build();
}
Also used : Arrays(java.util.Arrays) Reference(com.google.api.generator.engine.ast.Reference) PathTemplate(com.google.api.pathtemplate.PathTemplate) ThisObjectValue(com.google.api.generator.engine.ast.ThisObjectValue) Variable(com.google.api.generator.engine.ast.Variable) StringObjectValue(com.google.api.generator.engine.ast.StringObjectValue) LogicalOperationExpr(com.google.api.generator.engine.ast.LogicalOperationExpr) Generated(javax.annotation.Generated) MethodDefinition(com.google.api.generator.engine.ast.MethodDefinition) TypeStore(com.google.api.generator.gapic.composer.store.TypeStore) PrimitiveValue(com.google.api.generator.engine.ast.PrimitiveValue) CommentComposer(com.google.api.generator.gapic.composer.comment.CommentComposer) Map(java.util.Map) ConcreteReference(com.google.api.generator.engine.ast.ConcreteReference) ImmutableMap(com.google.common.collect.ImmutableMap) ForStatement(com.google.api.generator.engine.ast.ForStatement) Set(java.util.Set) 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Aggregations

Variable (com.google.api.generator.engine.ast.Variable)58 VariableExpr (com.google.api.generator.engine.ast.VariableExpr)54 MethodInvocationExpr (com.google.api.generator.engine.ast.MethodInvocationExpr)37 Test (org.junit.Test)35 AssignmentExpr (com.google.api.generator.engine.ast.AssignmentExpr)34 TypeNode (com.google.api.generator.engine.ast.TypeNode)29 ValueExpr (com.google.api.generator.engine.ast.ValueExpr)26 NewObjectExpr (com.google.api.generator.engine.ast.NewObjectExpr)25 Expr (com.google.api.generator.engine.ast.Expr)24 ConcreteReference (com.google.api.generator.engine.ast.ConcreteReference)20 AnonymousClassExpr (com.google.api.generator.engine.ast.AnonymousClassExpr)19 CastExpr (com.google.api.generator.engine.ast.CastExpr)17 RelationalOperationExpr (com.google.api.generator.engine.ast.RelationalOperationExpr)17 ReturnExpr (com.google.api.generator.engine.ast.ReturnExpr)17 TernaryExpr (com.google.api.generator.engine.ast.TernaryExpr)17 ThrowExpr (com.google.api.generator.engine.ast.ThrowExpr)17 List (java.util.List)17 ExprStatement (com.google.api.generator.engine.ast.ExprStatement)16 PrimitiveValue (com.google.api.generator.engine.ast.PrimitiveValue)16 ArrayList (java.util.ArrayList)16