Hydra EntryPoint erstellt. vocab.jsonld angepasst

server-app/src/main/java/com/kapdion/omds/productdefinitions/EndpointsZentralesBOA.java

@@ -7,8 +7,8 @@ import com.kapdion.omds.productdefinitions.calculate.CalculateService;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.web.bind.annotation.*;
 
-import javax.xml.datatype.DatatypeConfigurationException;
-import java.io.IOException;
+import java.util.Collections;
+import java.util.List;
 
 @Slf4j
 @RestController
@@ -16,13 +16,14 @@ import java.io.IOException;
 public class EndpointsZentralesBOA {
 
     @PostMapping("/ProductsRequest")
-    public String apriori(@RequestBody ProductsRequest productsRequest){
+    public HydraResponse<List<Object>> apriori(@RequestBody ProductsRequest productsRequest){
         AprioriService as = new AprioriService();
-        String s = as.getProductsResponse(productsRequest);
+        List<Object> s = Collections.singletonList(as.getProductsResponse(productsRequest));
+        HydraResponse<List<Object>> r = new HydraResponse<>(s);
         System.out.println("-----------------------");
-        System.out.println("Products request: " + s);
+        System.out.println("Products request: " + r.data.toString());
 
-        return s;
+        return r;
     };
 
     @PostMapping("/CalculateRequest")

server-app/src/main/java/com/kapdion/omds/productdefinitions/EntryPointController.java

@@ -0,0 +1,30 @@
+package com.kapdion.omds.productdefinitions;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@CrossOrigin(origins = "*", exposedHeaders = "Link")
+public class EntryPointController {
+
+    @GetMapping(value = "/", produces = "application/ld+json")
+    public ResponseEntity<String> getEntryPoint() {
+
+        String body = """
+        {
+          "@context": "http://localhost:9090/produktwissen-app/produktApi/context.jsonld",
+          "@id": "http://localhost:9090/produktwissen-app/produktApi/",
+          "@type": "hydra:EntryPoint"
+        }
+        """;
+
+        return ResponseEntity.ok()
+                .header(
+                        "Link",
+                        "<http://localhost:9090/produktwissen-app/produktApi/vocab.jsonld>; rel=\"http://www.w3.org/ns/hydra/core#apiDocumentation\""
+                )
+                .body(body);
+    }
+}

server-app/src/main/java/com/kapdion/omds/productdefinitions/HydraController.java

@@ -0,0 +1,23 @@
+package com.kapdion.omds.productdefinitions;
+
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.Resource;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/produktApi") // Dein Pfad
+public class HydraController {
+
+    @GetMapping(value = "/vocab", produces = "application/ld+json")
+    public Resource getVocab() {
+        // Lädt die Datei aus dem api-definition Modul
+        return new ClassPathResource("vocab.jsonld");
+    }
+
+    @GetMapping(value = "/context", produces = "application/ld+json")
+    public Resource getContext() {
+        return new ClassPathResource("context.jsonld");
+    }
+}

server-app/src/main/java/com/kapdion/omds/productdefinitions/HydraDocController.java

@@ -0,0 +1,27 @@
+package com.kapdion.omds.productdefinitions;
+
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.Resource;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@CrossOrigin(origins = "*") // UNBEDINGT HIER AUCH HINZUFÜGEN
+public class HydraDocController {
+
+    // Lädt die Datei aus dem Classpath (kommt aus dem api-definition Modul)
+    private Resource loadFile(String name) {
+        return new ClassPathResource(name);
+    }
+
+    @GetMapping(value = "/context.jsonld", produces = "application/ld+json")
+    public Resource getContext() {
+        return loadFile("context.jsonld");
+    }
+
+    @GetMapping(value = "/vocab.jsonld", produces = "application/ld+json")
+    public Resource getVocab() {
+        return loadFile("vocab.jsonld");
+    }
+}

server-app/src/main/java/com/kapdion/omds/productdefinitions/HydraHeaderFilter.java

@@ -0,0 +1,22 @@
+package com.kapdion.omds.productdefinitions;
+
+import jakarta.servlet.*;
+import jakarta.servlet.http.HttpServletResponse;
+import org.springframework.stereotype.Component;
+
+import java.io.IOException;
+
+@Component
+public class HydraHeaderFilter implements Filter {
+    @Override
+    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
+            throws IOException, ServletException {
+        HttpServletResponse httpServletResponse = (HttpServletResponse) response;
+
+        // Der Link zeigt auf dein Vocab-File
+        String linkHeader = "<http://localhost:9090/produktwissen-app/produktApi/vocab.jsonld>; rel=\"http://www.w3.org/ns/hydra/core#apiDocumentation\"";
+        httpServletResponse.setHeader("Link", linkHeader);
+
+        chain.doFilter(request, response);
+    }
+}

server-app/src/main/java/com/kapdion/omds/productdefinitions/HydraResponse.java

@@ -0,0 +1,18 @@
+package com.kapdion.omds.productdefinitions;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class HydraResponse<T> {
+    @JsonProperty("@context")
+    public String context = "/produktwissen-app/produktApi/context";
+
+    @JsonProperty("@type")
+    public String type = "api:CalculateResponse";
+
+    @JsonProperty("@graph")
+    public T data;
+
+    public HydraResponse(T data) {
+        this.data = data;
+    }
+}

server-app/src/main/java/com/kapdion/omds/productdefinitions/WebConfig.java

@@ -0,0 +1,16 @@
+package com.kapdion.omds.productdefinitions;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class WebConfig implements WebMvcConfigurer {
+    @Override
+    public void addCorsMappings(CorsRegistry registry) {
+        registry.addMapping("/**")
+                .allowedOrigins("*")
+                .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
+                .exposedHeaders("Link"); // WICHTIG: Damit die Konsole den Link-Header lesen kann!
+    }
+}

server-app/src/main/resources/application.properties

@@ -1,4 +1,6 @@
 spring.application.name=productdefinitions
 server.port=9090
 
-server.servlet.context-path=/produktApi
+server.servlet.context-path=/produktwissen-app/produktApi
+logging.level.org.springframework.web=DEBUG
+server.tomcat.relaxed-header-chars=:,