use of com.google.api.generator.gapic.model.Method.Stream in project gapic-generator-java by googleapis.
the class AbstractServiceStubSettingsClassComposer method createClassStatements.
private static List<Statement> createClassStatements(Service service, GapicServiceConfig serviceConfig, Map<String, VariableExpr> methodSettingsMemberVarExprs, Map<String, Message> messageTypes, TypeStore typeStore) {
Function<Expr, Statement> exprToStatementFn = e -> ExprStatement.withExpr(e);
List<Statement> statements = new ArrayList<>();
// Assign DEFAULT_SERVICE_SCOPES.
statements.add(SettingsCommentComposer.DEFAULT_SCOPES_COMMENT);
VariableExpr defaultServiceScopesDeclVarExpr = DEFAULT_SERVICE_SCOPES_VAR_EXPR.toBuilder().setIsDecl(true).setScope(ScopeNode.PRIVATE).setIsStatic(true).setIsFinal(true).build();
MethodInvocationExpr listBuilderExpr = MethodInvocationExpr.builder().setStaticReferenceType(FIXED_TYPESTORE.get("ImmutableList")).setGenerics(Arrays.asList(ConcreteReference.withClazz(String.class))).setMethodName("builder").build();
for (String serviceScope : service.oauthScopes()) {
listBuilderExpr = MethodInvocationExpr.builder().setExprReferenceExpr(listBuilderExpr).setMethodName("add").setArguments(ValueExpr.withValue(StringObjectValue.withValue(serviceScope))).build();
}
listBuilderExpr = MethodInvocationExpr.builder().setExprReferenceExpr(listBuilderExpr).setMethodName("build").setReturnType(DEFAULT_SERVICE_SCOPES_VAR_EXPR.type()).build();
statements.add(exprToStatementFn.apply(AssignmentExpr.builder().setVariableExpr(defaultServiceScopesDeclVarExpr).setValueExpr(listBuilderExpr).build()));
// Declare settings members.
statements.addAll(methodSettingsMemberVarExprs.values().stream().map(v -> exprToStatementFn.apply(v.toBuilder().setIsDecl(true).setScope(ScopeNode.PRIVATE).setIsFinal(true).build())).collect(Collectors.toList()));
statements.add(EMPTY_LINE_STATEMENT);
for (Expr pagingAssignExpr : createPagingStaticAssignExprs(service, serviceConfig, messageTypes, typeStore)) {
statements.add(exprToStatementFn.apply(pagingAssignExpr));
statements.add(EMPTY_LINE_STATEMENT);
}
for (Method method : service.methods()) {
Optional<GapicBatchingSettings> batchingSettingOpt = Objects.isNull(serviceConfig) ? Optional.empty() : serviceConfig.getBatchingSetting(service, method);
if (batchingSettingOpt.isPresent()) {
statements.add(exprToStatementFn.apply(BatchingDescriptorComposer.createBatchingDescriptorFieldDeclExpr(method, batchingSettingOpt.get(), messageTypes)));
}
statements.add(EMPTY_LINE_STATEMENT);
}
return statements;
}
use of com.google.api.generator.gapic.model.Method.Stream in project gapic-generator-java by googleapis.
the class AbstractServiceClientClassComposer method createNestedRpcPagedResponseClass.
private static ClassDefinition createNestedRpcPagedResponseClass(Method method, TypeNode repeatedResponseType, Map<String, Message> messageTypes, TypeStore typeStore) {
Preconditions.checkState(method.isPaged(), String.format("Expected method %s to be paged", method.name()));
String className = String.format("%sPagedResponse", JavaStyle.toUpperCamelCase(method.name()));
TypeNode thisClassType = typeStore.get(className);
String upperJavaMethodName = JavaStyle.toUpperCamelCase(method.name());
TypeNode methodPageType = typeStore.get(String.format("%sPage", upperJavaMethodName));
TypeNode classExtendsType = TypeNode.withReference(ConcreteReference.builder().setClazz(AbstractPagedListResponse.class).setGenerics(Arrays.asList(method.inputType(), method.outputType(), repeatedResponseType, methodPageType, typeStore.get(String.format("%sFixedSizeCollection", upperJavaMethodName))).stream().map(t -> t.reference()).collect(Collectors.toList())).build());
// createAsync method - variables.
VariableExpr contextVarExpr = VariableExpr.withVariable(Variable.builder().setName("context").setType(TypeNode.withReference(ConcreteReference.builder().setClazz(PageContext.class).setGenerics(Arrays.asList(method.inputType(), method.outputType(), repeatedResponseType).stream().map(t -> t.reference()).collect(Collectors.toList())).build())).build());
VariableExpr futureResponseVarExpr = VariableExpr.withVariable(Variable.builder().setName("futureResponse").setType(TypeNode.withReference(ConcreteReference.builder().setClazz(ApiFuture.class).setGenerics(Arrays.asList(method.outputType().reference())).build())).build());
VariableExpr futurePageVarExpr = VariableExpr.withVariable(Variable.builder().setName("futurePage").setType(TypeNode.withReference(ConcreteReference.builder().setClazz(ApiFuture.class).setGenerics(Arrays.asList(methodPageType.reference())).build())).build());
// createAsync method - assignment expression.
MethodInvocationExpr createPageAsyncExpr = MethodInvocationExpr.builder().setStaticReferenceType(methodPageType).setMethodName("createEmptyPage").build();
createPageAsyncExpr = MethodInvocationExpr.builder().setExprReferenceExpr(createPageAsyncExpr).setMethodName("createPageAsync").setArguments(contextVarExpr, futureResponseVarExpr).setReturnType(futurePageVarExpr.type()).build();
AssignmentExpr futurePageAssignExpr = AssignmentExpr.builder().setVariableExpr(futurePageVarExpr.toBuilder().setIsDecl(true).build()).setValueExpr(createPageAsyncExpr).build();
// createAsync method - anonymous class expression.
VariableExpr inputVarExpr = VariableExpr.withVariable(Variable.builder().setName("input").setType(methodPageType).build());
// Overrides ApiFunction.apply.
// (https://github.com/googleapis/api-common-java/blob/debf25960dea0367b0d3b5e16d57d76c1d01947e/src/main/java/com/google/api/core/ApiFunction.java).
Expr pageToTransformExpr = LambdaExpr.builder().setArguments(inputVarExpr.toBuilder().setIsDecl(true).build()).setReturnExpr(NewObjectExpr.builder().setType(thisClassType).setArguments(inputVarExpr).build()).build();
// createAsync method - return expression.
TypeNode returnType = TypeNode.withReference(ConcreteReference.builder().setClazz(ApiFuture.class).setGenerics(Arrays.asList(typeStore.get(className).reference())).build());
Expr returnExpr = MethodInvocationExpr.builder().setStaticReferenceType(typeStore.get("ApiFutures")).setMethodName("transform").setArguments(futurePageVarExpr, pageToTransformExpr, MethodInvocationExpr.builder().setStaticReferenceType(typeStore.get("MoreExecutors")).setMethodName("directExecutor").build()).setReturnType(returnType).build();
MethodDefinition createAsyncMethod = MethodDefinition.builder().setScope(ScopeNode.PUBLIC).setIsStatic(true).setReturnType(returnType).setName("createAsync").setArguments(Arrays.asList(contextVarExpr, futureResponseVarExpr).stream().map(e -> e.toBuilder().setIsDecl(true).build()).collect(Collectors.toList())).setBody(Arrays.asList(ExprStatement.withExpr(futurePageAssignExpr))).setReturnExpr(returnExpr).build();
// Private constructor.
VariableExpr pageVarExpr = VariableExpr.withVariable(Variable.builder().setName("page").setType(methodPageType).build());
MethodDefinition privateCtor = MethodDefinition.constructorBuilder().setScope(ScopeNode.PRIVATE).setReturnType(thisClassType).setArguments(pageVarExpr.toBuilder().setIsDecl(true).build()).setBody(Arrays.asList(ExprStatement.withExpr(// Shortcut.
ReferenceConstructorExpr.superBuilder().setType(methodPageType).setArguments(pageVarExpr, MethodInvocationExpr.builder().setStaticReferenceType(typeStore.get(String.format("%sFixedSizeCollection", upperJavaMethodName))).setMethodName("createEmptyCollection").build()).build()))).build();
List<MethodDefinition> javaMethods = new ArrayList<>();
javaMethods.add(createAsyncMethod);
javaMethods.add(privateCtor);
return ClassDefinition.builder().setIsNested(true).setScope(ScopeNode.PUBLIC).setIsStatic(true).setExtendsType(classExtendsType).setName(className).setMethods(javaMethods).build();
}
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