Examples with TypeNode com.google.api.generator.engine.ast.TypeNode used on opensource projects

Example 6 with TypeNode

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

the class AbstractServiceStubSettingsClassComposer method createNestedClassInitDefaultsMethod.

private MethodDefinition createNestedClassInitDefaultsMethod(Service service, @Nullable GapicServiceConfig serviceConfig, TypeStore typeStore) {
    // TODO(miraleung): Robustify this against a null serviceConfig.
    TypeNode builderType = typeStore.get(NESTED_BUILDER_CLASS_NAME);
    VariableExpr builderVarExpr = VariableExpr.withVariable(Variable.builder().setType(builderType).setName("builder").build());
    List<Statement> bodyStatements = new ArrayList<>();
    // Iterate through methods twice to so we can have LRO expressions appear last.
    for (Method method : service.methods()) {
        Method.Stream streamKind = method.stream();
        if (streamKind.equals(Method.Stream.CLIENT) || streamKind.equals(Method.Stream.BIDI)) {
            continue;
        }
        if (!Objects.isNull(serviceConfig) && serviceConfig.hasBatchingSetting(service, method)) {
            Optional<GapicBatchingSettings> batchingSettingOpt = serviceConfig.getBatchingSetting(service, method);
            Preconditions.checkState(batchingSettingOpt.isPresent(), String.format("No batching setting found for service %s, method %s", service.name(), method.name()));
            String settingsGetterMethodName = String.format("%sSettings", JavaStyle.toLowerCamelCase(method.name()));
            bodyStatements.add(ExprStatement.withExpr(RetrySettingsComposer.createBatchingBuilderSettingsExpr(settingsGetterMethodName, batchingSettingOpt.get(), builderVarExpr)));
            bodyStatements.add(EMPTY_LINE_STATEMENT);
        }
        bodyStatements.add(ExprStatement.withExpr(RetrySettingsComposer.createSimpleBuilderSettingsExpr(service, serviceConfig, method, builderVarExpr, NESTED_RETRYABLE_CODE_DEFINITIONS_VAR_EXPR, NESTED_RETRY_PARAM_DEFINITIONS_VAR_EXPR)));
        bodyStatements.add(EMPTY_LINE_STATEMENT);
    }
    for (Method method : service.methods()) {
        if (!method.hasLro()) {
            continue;
        }
        bodyStatements.add(ExprStatement.withExpr(RetrySettingsComposer.createLroSettingsBuilderExpr(service, serviceConfig, method, builderVarExpr, NESTED_RETRYABLE_CODE_DEFINITIONS_VAR_EXPR, NESTED_RETRY_PARAM_DEFINITIONS_VAR_EXPR, getTransportContext().operationResponseTransformerType(), getTransportContext().operationMetadataTransformerType())));
        bodyStatements.add(EMPTY_LINE_STATEMENT);
    }
    return MethodDefinition.builder().setScope(ScopeNode.PRIVATE).setIsStatic(true).setReturnType(builderType).setName("initDefaults").setArguments(builderVarExpr.toBuilder().setIsDecl(true).build()).setBody(bodyStatements).setReturnExpr(builderVarExpr).build();
}

Example 7 with TypeNode

use of com.google.api.generator.engine.ast.TypeNode 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();
}

Example 8 with TypeNode

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

the class AbstractServiceStubSettingsClassComposer method createDefaultTransportTransportProviderBuilderMethods.

protected List<MethodDefinition> createDefaultTransportTransportProviderBuilderMethods() {
    // Create the defaultGrpcTransportProviderBuilder method.
    Iterator<Class<?>> providerClassIt = getTransportContext().instantiatingChannelProviderClasses().iterator();
    Iterator<Class<?>> providerBuilderClassIt = getTransportContext().instantiatingChannelProviderBuilderClasses().iterator();
    Iterator<String> builderNamesIt = getTransportContext().defaultTransportProviderBuilderNames().iterator();
    List<MethodDefinition> methods = new ArrayList<>();
    while (providerClassIt.hasNext() && providerBuilderClassIt.hasNext() && builderNamesIt.hasNext()) {
        TypeNode returnType = TypeNode.withReference(ConcreteReference.withClazz(providerBuilderClassIt.next()));
        TypeNode channelProviderType = TypeNode.withReference(ConcreteReference.withClazz(providerClassIt.next()));
        MethodInvocationExpr transportChannelProviderBuilderExpr = MethodInvocationExpr.builder().setStaticReferenceType(channelProviderType).setMethodName("newBuilder").setReturnType(returnType).build();
        Expr returnExpr = initializeTransportProviderBuilder(transportChannelProviderBuilderExpr, returnType);
        MethodDefinition method = MethodDefinition.builder().setHeaderCommentStatements(SettingsCommentComposer.DEFAULT_TRANSPORT_PROVIDER_BUILDER_METHOD_COMMENT).setScope(ScopeNode.PUBLIC).setIsStatic(true).setReturnType(returnType).setName(builderNamesIt.next()).setReturnExpr(returnExpr).build();
        methods.add(method);
    }
    return methods;
}

Example 9 with TypeNode

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

the class AbstractServiceStubSettingsClassComposer method createDefaultHelperAndGetterMethods.

private List<MethodDefinition> createDefaultHelperAndGetterMethods(Service service, TypeStore typeStore) {
    List<MethodDefinition> javaMethods = new ArrayList<>();
    // Create the defaultExecutorProviderBuilder method.
    TypeNode returnType = TypeNode.withReference(ConcreteReference.withClazz(InstantiatingExecutorProvider.Builder.class));
    javaMethods.add(MethodDefinition.builder().setHeaderCommentStatements(SettingsCommentComposer.DEFAULT_EXECUTOR_PROVIDER_BUILDER_METHOD_COMMENT).setScope(ScopeNode.PUBLIC).setIsStatic(true).setReturnType(returnType).setName("defaultExecutorProviderBuilder").setReturnExpr(MethodInvocationExpr.builder().setStaticReferenceType(FIXED_TYPESTORE.get("InstantiatingExecutorProvider")).setMethodName("newBuilder").setReturnType(returnType).build()).build());
    // Create the getDefaultEndpoint method.
    returnType = TypeNode.STRING;
    javaMethods.add(MethodDefinition.builder().setHeaderCommentStatements(SettingsCommentComposer.DEFAULT_SERVICE_ENDPOINT_METHOD_COMMENT).setScope(ScopeNode.PUBLIC).setIsStatic(true).setReturnType(returnType).setName("getDefaultEndpoint").setReturnExpr(ValueExpr.withValue(StringObjectValue.withValue(service.defaultHost()))).build());
    // Create the getDefaultMtlsEndpoint method.
    returnType = TypeNode.STRING;
    javaMethods.add(MethodDefinition.builder().setHeaderCommentStatements(SettingsCommentComposer.DEFAULT_SERVICE_MTLS_ENDPOINT_METHOD_COMMENT).setScope(ScopeNode.PUBLIC).setIsStatic(true).setReturnType(returnType).setName("getDefaultMtlsEndpoint").setReturnExpr(ValueExpr.withValue(StringObjectValue.withValue(service.defaultHost().replace(".googleapis.com", ".mtls.googleapis.com")))).build());
    // Create the getDefaultServiceScopes method.
    returnType = TypeNode.withReference(ConcreteReference.builder().setClazz(List.class).setGenerics(Arrays.asList(TypeNode.STRING.reference())).build());
    javaMethods.add(MethodDefinition.builder().setHeaderCommentStatements(SettingsCommentComposer.DEFAULT_SERVICE_SCOPES_METHOD_COMMENT).setScope(ScopeNode.PUBLIC).setIsStatic(true).setReturnType(returnType).setName("getDefaultServiceScopes").setReturnExpr(DEFAULT_SERVICE_SCOPES_VAR_EXPR).build());
    javaMethods.add(createDefaultCredentialsProviderBuilderMethod());
    javaMethods.addAll(createDefaultTransportTransportProviderBuilderMethods());
    javaMethods.add(createDefaultTransportChannelProviderMethod());
    javaMethods.addAll(createApiClientHeaderProviderBuilderMethods(service, typeStore));
    return javaMethods;
}

Example 10 with TypeNode

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

the class AbstractServiceStubSettingsClassComposer method createNestedRetryableCodeDefinitionsVarExpr.

private static VariableExpr createNestedRetryableCodeDefinitionsVarExpr() {
    TypeNode immutableSetType = TypeNode.withReference(ConcreteReference.builder().setClazz(ImmutableSet.class).setGenerics(Arrays.asList(ConcreteReference.withClazz(StatusCode.Code.class))).build());
    TypeNode varType = TypeNode.withReference(ConcreteReference.builder().setClazz(ImmutableMap.class).setGenerics(Arrays.asList(TypeNode.STRING, immutableSetType).stream().map(t -> t.reference()).collect(Collectors.toList())).build());
    return VariableExpr.withVariable(Variable.builder().setType(varType).setName(NESTED_RETRYABLE_CODE_DEFINITIONS_VAR_NAME).build());
}