Merge pull request #3 from ueberfuhr-trainings/feature/boundary

Implement API

customer-api-provider/pom.xml

@@ -7,7 +7,7 @@
 
     <properties>
         <compiler-plugin.version>3.13.0</compiler-plugin.version>
-        <maven.compiler.release>21</maven.compiler.release>
+        <maven.compiler.release>17</maven.compiler.release>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <quarkus.platform.artifact-id>quarkus-bom</quarkus.platform.artifact-id>
@@ -37,7 +37,7 @@
         </dependency>
         <dependency>
             <groupId>io.quarkus</groupId>
-            <artifactId>quarkus-rest</artifactId>
+            <artifactId>quarkus-resteasy-jsonb</artifactId>
         </dependency>
         <dependency>
             <groupId>io.quarkus</groupId>

customer-api-provider/src/main/java/de/samples/schulung/quarkus/CustomerDto.java

@@ -0,0 +1,24 @@
+package de.samples.schulung.quarkus;
+
+import jakarta.json.bind.annotation.JsonbProperty;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+import java.time.LocalDate;
+import java.util.UUID;
+
+@Getter
+@Setter
+@AllArgsConstructor
+@NoArgsConstructor
+public class CustomerDto {
+
+    private UUID uuid;
+    private String name;
+    @JsonbProperty("birthdate")
+    private LocalDate birthday;
+    private String state;
+
+}

customer-api-provider/src/main/java/de/samples/schulung/quarkus/CustomersResource.java

@@ -0,0 +1,83 @@
+package de.samples.schulung.quarkus;
+
+import jakarta.ws.rs.*;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.core.UriBuilder;
+
+import java.time.LocalDate;
+import java.time.Month;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+@Path("/api/v1/customers")
+public class CustomersResource {
+
+    // GET /customers?state=disabled -> 200 mit Liste der Kunden (JSON)
+
+    private final Map<UUID, CustomerDto> customers = new HashMap<>();
+
+    {
+        var customer1 = new CustomerDto(
+                UUID.randomUUID(),
+                "Tom Mayer",
+                LocalDate.of(2006, Month.APRIL, 10),
+                "active"
+        );
+        customers.put(customer1.getUuid(), customer1);
+        var customer2 = new CustomerDto(
+                UUID.randomUUID(),
+                "Julia Smith",
+                LocalDate.of(2010, Month.OCTOBER, 20),
+                "locked"
+        );
+        customers.put(customer2.getUuid(), customer2);
+    }
+
+    @GET
+    @Produces(MediaType.APPLICATION_JSON)
+    public Collection<CustomerDto> getCustomers(@QueryParam("state") String state) {
+        return customers
+                .values()
+                .stream()
+                .filter(c -> null == state || c.getState().equals(state))
+                .toList();
+    }
+
+    // GET /customers/{id} -> 200 mit Customer
+
+    @GET
+    @Path("/{uuid}")
+    @Produces(MediaType.APPLICATION_JSON)
+    public CustomerDto findCustomerById(@PathParam("uuid") UUID uuid) {
+        return customers.get(uuid);
+    }
+
+    // POST /customers mit Kunde ohne UUID -> 201 mit Kunde + Location Header
+
+    @POST
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    public Response createCustomer(CustomerDto customer) {
+        customer.setUuid(UUID.randomUUID());
+        customers.put(customer.getUuid(), customer);
+        final var location = UriBuilder
+                .fromResource(CustomersResource.class)
+                .path(CustomersResource.class, "findCustomerById")
+                .build(customer.getUuid());
+        /* Alternatively, add a parameter "@Context UriInfo info" and use it like this:
+         *
+         * info
+         *   .getAbsolutePathBuilder()
+         *   .path(customer.getUuid().toString())
+         *   .build();
+         */
+        return Response
+                .created(location)
+                .entity(customer)
+                .build();
+    }
+
+}