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translation: Translate the aggregator-microservices readme to Spanish [Issue #2335 (Task of issue #2277 )] (#2338)
* Translate: Translate the aggregator-microservices readme to Spanish [Issue #2335 (Task of issue #2277 )] * Translate: Translate the aggregator-microservices readme to Spanish [Issue #2335 (Task of issue #2277 )] * Update README.md * Restored translated YAML Frontmatter keys to right words not translated and minor new changes Minor new changes are at YAML Frontmatter variables values of lines 2 and 3 where have switched the order of translated words to homogeinize the belowing structure of that order like figured at following lines 6,7 and 8 (First english term and then Spanish translation between parenthesis) * Update localization/es/aggregator-microservices/README.md Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com> * Update localization/es/aggregator-microservices/README.md Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com> * Update localization/es/aggregator-microservices/README.md Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com> * Update localization/es/aggregator-microservices/README.md Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com> * Update localization/es/aggregator-microservices/README.md Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com> Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>
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---
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title: Aggregator Microservices
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category: Architectural
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language: es
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tag:
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- Cloud distributed
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- Decoupling
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- Microservices
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---
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## Intención
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El usuario realiza una sola llamada al servicio del agregador y, a continuación, el agregador llama a cada microservicio relevante.
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## Explicación
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ejemplo del mundo real
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> Nuestro mercado web necesita información sobre los productos y su inventario actual. Hace una llamada a un agregador
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> servicio que a su vez llama al microservicio de información del producto y al microservicio de inventario del producto que devuelve la
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> información combinada.
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En palabras sencillas
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> Aggregator Microservice recopila datos de varios microservicios y devuelve un agregado para su procesamiento.
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StackOverflow dice
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> Aggregator Microservice invoca múltiples servicios para lograr la funcionalidad requerida por la aplicación.
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**Ejemplo programático**
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Empecemos por el modelo de datos. Aquí está nuestro `Product`.
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```java
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public class Product {
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private String title;
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private int productInventories;
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// getters and setters ->
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...
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}
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```
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A continuación, podemos presentar nuestro microservicio `Aggregator` (Agregador de microservicios). Contiene el `ProductInformationClient` (Información del producto del cliente) y el
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`ProductInventoryClient` (Inventario del producto del cliente) de los clientes para llamar a los respectivos microservicios.
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```java
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@RestController
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public class Aggregator {
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@Resource
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private ProductInformationClient informationClient;
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@Resource
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private ProductInventoryClient inventoryClient;
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@RequestMapping(path = "/product", method = RequestMethod.GET)
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public Product getProduct() {
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var product = new Product();
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var productTitle = informationClient.getProductTitle();
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var productInventory = inventoryClient.getProductInventories();
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//Fallback to error message
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product.setTitle(requireNonNullElse(productTitle, "Error: Fetching Product Title Failed"));
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//Fallback to default error inventory
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product.setProductInventories(requireNonNullElse(productInventory, -1));
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return product;
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}
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}
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```
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Esta es la esencia de la implementación de microservicios de información. El microservicio de inventario es similar, simplemente regresa
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recuentos de inventario.
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```java
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@RestController
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public class InformationController {
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@RequestMapping(value = "/information", method = RequestMethod.GET)
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public String getProductTitle() {
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return "The Product Title.";
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}
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}
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```
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Ahora llamando a nuestra REST API `Aggregator` devuelve la información del producto.
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```bash
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curl http://localhost:50004/product
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{"title":"The Product Title.","productInventories":5}
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```
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## Diagrama de clase
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## Aplicabilidad
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Utilice el patrón Agregador de microservicios (Aggregator Microservices) cuando necesite una API unificada para varios microservicios, independientemente del dispositivo cliente.
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## Créditos
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* [Patrones de diseño de microservicios] (http://web.archive.org/web/20190705163602/http://blog.arungupta.me/microservice-design-patterns/)
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* [Patrones de microservicios: Con ejemplos en Java](https://www.amazon.com/gp/product/1617294543/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=javadesignpat-20&creative=9325&linkCode=as2&creativeASIN=1617294543&linkId=8b4e570267bc5fb8b8189917b461dc60)
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* [Patrones de arquitectura: Descubra patrones esenciales en el ámbito más indispensable de la arquitectura empresarial](https://www.amazon.com/gp/product/B077T7V8RC/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=javadesignpat-20&creative=9325&linkCode=as2&creativeASIN=B077T7V8RC&linkId=c34d204bfe1b277914b420189f09c1a4)
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