Implement Vert.x web validation module

README.md

@@ -402,6 +402,13 @@ Vert.x Mutiny webClient exploratory test.
 
 Also see http/vertx-web-client/README.md
 
+### `http/vertx-web-validation`
+Ensure that you can deploy a simple Quarkus application with predefined routes using schema parser from vertx-json-schema and Router Vert.x approach,
+ incorporating web validation configuration through ValidationHandlerBuilder. One of the goal of vertx-web-validation functionality is to validate parameters and bodies of incoming requests.
+
+It also verifies multiple deployment strategies like:
+- Using Quarkus OpenShift extension
+
 ### `http/graphql`
 This module covers some basic scenarios around GraphQL.
 

http/vertx-web-validation/pom.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>io.quarkus.ts.qe</groupId>
+        <artifactId>parent</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+        <relativePath>../..</relativePath>
+    </parent>
+    <artifactId>vertx-web-validation</artifactId>
+    <packaging>jar</packaging>
+    <name>Quarkus QE TS: HTTP: Vert.x-Web-Validation</name>
+    <dependencies>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-resteasy-reactive-jackson</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.vertx</groupId>
+            <artifactId>vertx-web-validation</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.vertx</groupId>
+            <artifactId>vertx-json-schema</artifactId>
+        </dependency>
+    </dependencies>
+</project>

http/vertx-web-validation/src/main/java/io/quarkus/ts/vertx/web/validation/ShopResource.java

@@ -0,0 +1,33 @@
+package io.quarkus.ts.vertx.web.validation;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
+
+@Path("/shoppinglist")
+@Produces(MediaType.APPLICATION_JSON)
+public class ShopResource {
+
+    private static List<ShoppingList> shoppingList = createSampleProductList();
+
+    private static List<ShoppingList> createSampleProductList() {
+        shoppingList = new ArrayList<>();
+        shoppingList.add(new ShoppingList(UUID.randomUUID(), "ListName1", 25,
+                new ArrayList<>(Arrays.asList("Carrots", "Water", "Cheese", "Beer"))));
+        shoppingList.add(new ShoppingList(UUID.randomUUID(), "ListName2", 80,
+                new ArrayList<>(Arrays.asList("Meat", "Wine", "Almonds", "Potatoes", "Cake"))));
+        return shoppingList;
+    }
+
+    @GET
+    public List<ShoppingList> get() {
+        return shoppingList;
+    }
+
+}

http/vertx-web-validation/src/main/java/io/quarkus/ts/vertx/web/validation/ShoppingList.java

@@ -0,0 +1,60 @@
+package io.quarkus.ts.vertx.web.validation;
+
+import java.util.ArrayList;
+import java.util.UUID;
+
+public class ShoppingList {
+
+    public UUID id;
+
+    public String name;
+
+    public ArrayList<String> products;
+
+    public double price;
+
+    public ShoppingList(UUID id, String name, double price, ArrayList<String> products) {
+        this.id = id;
+        this.name = name;
+        this.price = price;
+        this.products = products;
+    }
+
+    public ArrayList<String> getProducts() {
+        return products;
+    }
+
+    public void setProducts(ArrayList<String> products) {
+        this.products = products;
+    }
+
+    public UUID getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public double getPrice() {
+        return price;
+    }
+
+    public void setPrice(double price) {
+        this.price = price;
+    }
+
+    @Override
+    public String toString() {
+        return String.format(
+                "Shopping list{id=%s, name=%s, products=%s, price=%s}",
+                getId(),
+                getName(),
+                getProducts().toString(),
+                getPrice());
+    }
+}

http/vertx-web-validation/src/main/java/io/quarkus/ts/vertx/web/validation/ValidationHandlerOnRoutes.java

@@ -0,0 +1,153 @@
+package io.quarkus.ts.vertx.web.validation;
+
+import static io.vertx.ext.web.validation.builder.Parameters.param;
+import static io.vertx.json.schema.common.dsl.Schemas.arraySchema;
+import static io.vertx.json.schema.common.dsl.Schemas.numberSchema;
+import static io.vertx.json.schema.common.dsl.Schemas.objectSchema;
+import static io.vertx.json.schema.common.dsl.Schemas.stringSchema;
+import static io.vertx.json.schema.draft7.dsl.Keywords.maximum;
+
+import java.util.List;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.stream.Collectors;
+
+import jakarta.annotation.PostConstruct;
+import jakarta.enterprise.event.Observes;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.core.HttpHeaders;
+import jakarta.ws.rs.core.MediaType;
+
+import io.netty.handler.codec.http.HttpResponseStatus;
+import io.vertx.core.Vertx;
+import io.vertx.core.json.Json;
+import io.vertx.core.json.JsonArray;
+import io.vertx.ext.web.Router;
+import io.vertx.ext.web.validation.BadRequestException;
+import io.vertx.ext.web.validation.BodyProcessorException;
+import io.vertx.ext.web.validation.ParameterProcessorException;
+import io.vertx.ext.web.validation.RequestParameters;
+import io.vertx.ext.web.validation.RequestPredicate;
+import io.vertx.ext.web.validation.RequestPredicateException;
+import io.vertx.ext.web.validation.ValidationHandler;
+import io.vertx.ext.web.validation.builder.Bodies;
+import io.vertx.ext.web.validation.builder.Parameters;
+import io.vertx.ext.web.validation.builder.ValidationHandlerBuilder;
+import io.vertx.json.schema.SchemaParser;
+import io.vertx.json.schema.SchemaRouter;
+import io.vertx.json.schema.SchemaRouterOptions;
+import io.vertx.json.schema.common.dsl.ObjectSchemaBuilder;
+
+public class ValidationHandlerOnRoutes {
+    //TODO when Quarkus use vert.x version 4.4.6 we can use SchemaRepository instead of SchemaParser with SchemaRouter
+    //private SchemaRepository schemaRepository =SchemaRepository.create(new JsonSchemaOptions().setDraft(Draft.DRAFT7).setBaseUri(BASEURI));
+    private SchemaParser schemaParser;
+    private SchemaRouter schemaRouter;
+
+    @Inject
+    Vertx vertx;
+
+    private static ShopResource shopResource = new ShopResource();
+
+    private static final String ERROR_MESSAGE = "{\"error\": \"%s\"}";
+    private static final String SHOPPINGLIST_NOT_FOUND = "Shopping list not found in the list or does not exist with that name or price";
+
+    @PostConstruct
+    void initialize() {
+        schemaParser = createSchema();
+    }
+
+    private SchemaParser createSchema() {
+        schemaRouter = SchemaRouter.create(vertx, new SchemaRouterOptions());
+        schemaParser = SchemaParser.createDraft7SchemaParser(schemaRouter);
+        return schemaParser;
+    }
+
+    public void validateHandlerShoppingList(@Observes Router router) {
+        AtomicReference<String> queryAnswer = new AtomicReference<>();
+        router.get("/filterList")
+                .handler(ValidationHandlerBuilder
+                        .create(schemaParser)
+                        .queryParameter(param("shoppingListName", stringSchema()))
+                        .queryParameter(param("shoppingListPrice", numberSchema().with(maximum(100)))).build())
+                .handler(routingContext -> {
+                    RequestParameters parameters = routingContext.get(ValidationHandler.REQUEST_CONTEXT_KEY);
+                    String shoppingListName = parameters.queryParameter("shoppingListName").getString();
+                    Double totalPrice = parameters.queryParameter("shoppingListPrice").getDouble();
+
+                    // Logic to list shoppingList based on shoppingListName and totalPrice
+                    String shoppingListFound = fetchProductDetailsFromQuery(shoppingListName, totalPrice);
+                    queryAnswer.set(shoppingListFound);
+
+                    if (queryAnswer.get().equalsIgnoreCase(SHOPPINGLIST_NOT_FOUND)) {
+                        routingContext.response().setStatusCode(HttpResponseStatus.NOT_FOUND.code());
+                    }
+
+                    routingContext.response().putHeader(HttpHeaders.CONTENT_TYPE, MediaType.TEXT_PLAIN).end(queryAnswer.get());
+                }).failureHandler(routingContext -> {
+                    // Error handling:
+                    if (routingContext.failure() instanceof BadRequestException ||
+                            routingContext.failure() instanceof ParameterProcessorException ||
+                            routingContext.failure() instanceof BodyProcessorException ||
+                            routingContext.failure() instanceof RequestPredicateException) {
+
+                        String errorMessage = routingContext.failure().toString();
+                        routingContext.response()
+                                .setStatusCode(HttpResponseStatus.BAD_REQUEST.code())
+                                .putHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON)
+                                .end(String.format(ERROR_MESSAGE, errorMessage));
+                    } else {
+                        routingContext.next();
+                    }
+
+                });
+        // Create a ValidationHandlerBuilder with explodedParam and arraySchema to filter by array items
+        ObjectSchemaBuilder bodySchemaBuilder = objectSchema()
+                .property("shoppingListName", stringSchema());
+        ValidationHandlerBuilder
+                .create(schemaParser)
+                .body(Bodies.json(bodySchemaBuilder));
+        router.get("/filterByArrayItem")
+                .handler(
+                        ValidationHandlerBuilder
+                                .create(schemaParser)
+                                .queryParameter(Parameters.explodedParam("shoppingArray", arraySchema().items(stringSchema())))
+                                .body(Bodies.json(bodySchemaBuilder))
+                                .build())
+                .handler(routingContext -> {
+                    RequestParameters parameters = routingContext.get(ValidationHandler.REQUEST_CONTEXT_KEY);
+                    JsonArray myArray = parameters.queryParameter("shoppingArray").getJsonArray();
+                    // Retrieve the list of all shoppingLists
+                    List<ShoppingList> shoppingLists = fetchProductDetailsFromArrayQuery(myArray);
+
+                    routingContext.response().putHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON)
+                            .end(Json.encodeToBuffer(shoppingLists));
+                });
+        // Let's allow to create a new item
+        router.post("/createShoppingList").handler(
+                ValidationHandlerBuilder
+                        .create(schemaParser)
+                        .predicate(RequestPredicate.BODY_REQUIRED)
+                        .queryParameter(param("shoppingListName", stringSchema()))
+                        .queryParameter(param("shoppingListPrice", numberSchema().with(maximum(100))))
+                        .build())
+                .handler(routingContext -> {
+                    routingContext.response().setStatusCode(HttpResponseStatus.OK.code()).end("Shopping list created");
+                });
+
+    }
+
+    public List<ShoppingList> fetchProductDetailsFromArrayQuery(JsonArray myArray) {
+        return shopResource.get().stream()
+                .filter(shoppingList -> myArray.contains(shoppingList.getName()))
+                .collect(Collectors.toList());
+    }
+
+    public String fetchProductDetailsFromQuery(String name, Double price) {
+        return shopResource.get().stream()
+                .filter(product -> name.equalsIgnoreCase(product.getName()) && price.equals(product.getPrice()))
+                .map(ShoppingList::toString)
+                .findFirst()
+                .orElse(SHOPPINGLIST_NOT_FOUND);
+    }
+
+}

http/vertx-web-validation/src/test/java/io/quarkus/ts/vertx/web/validation/OpenShiftVertxWebValidationIT.java

@@ -0,0 +1,7 @@
+package io.quarkus.ts.vertx.web.validation;
+
+import io.quarkus.test.scenarios.OpenShiftScenario;
+
+@OpenShiftScenario
+public class OpenShiftVertxWebValidationIT extends VertxWebValidationIT {
+}