BAEL-4204 - Adding Interceptors in OkHTTP (#10539)

* BAEL-4706 - Spring Boot with Spring Batch

* BAEL-3948 - Fix test(s) in spring-batch which leaves repository.sqlite
changed

* BAEL-4736 - Convert JSONArray to List of Object using camel-jackson

* BAEL-4756 - Mockito MockSettings

* BAEL-4756 - Mockito MockSettings - fix spelling

* BAEL-2674 - Upgrade the Okhttp article

* BAEL-4204 - Adding Interceptors in OkHTTP

Co-authored-by: Jonathan Cook <jcook@sciops.esa.int>

libraries-http-2/src/main/java/com/baeldung/okhttp/interceptors/CacheControlResponeInterceptor.java

@@ -0,0 +1,18 @@
+package com.baeldung.okhttp.interceptors;
+
+import java.io.IOException;
+
+import okhttp3.Interceptor;
+import okhttp3.Response;
+
+public class CacheControlResponeInterceptor implements Interceptor {
+
+    @Override
+    public Response intercept(Chain chain) throws IOException {
+        Response response = chain.proceed(chain.request());
+        return response.newBuilder()
+            .header("Cache-Control", "no-store")
+            .build();
+    }
+
+}

libraries-http-2/src/main/java/com/baeldung/okhttp/interceptors/ErrorMessage.java

@@ -0,0 +1,21 @@
+package com.baeldung.okhttp.interceptors;
+
+public class ErrorMessage {
+
+    private final int status;
+    private final String detail;
+
+    public ErrorMessage(int status, String detail) {
+        this.status = status;
+        this.detail = detail;
+    }
+
+    public int getStatus() {
+        return status;
+    }
+
+    public String getDetail() {
+        return detail;
+    }
+
+}

libraries-http-2/src/main/java/com/baeldung/okhttp/interceptors/ErrorResponseInterceptor.java

@@ -0,0 +1,32 @@
+package com.baeldung.okhttp.interceptors;
+
+import java.io.IOException;
+
+import com.google.gson.Gson;
+
+import okhttp3.Interceptor;
+import okhttp3.MediaType;
+import okhttp3.Response;
+import okhttp3.ResponseBody;
+
+public class ErrorResponseInterceptor implements Interceptor {
+    
+    public static final MediaType APPLICATION_JSON = MediaType.get("application/json; charset=utf-8");
+
+    @Override
+    public Response intercept(Chain chain) throws IOException {
+        Response response = chain.proceed(chain.request());
+        
+        if(!response.isSuccessful()) {
+            Gson gson = new Gson();
+            String body = gson.toJson(new ErrorMessage(response.code(), "The response from the server was not OK"));
+            ResponseBody responseBody = ResponseBody.create(body, APPLICATION_JSON);
+            
+            return response.newBuilder()
+                .body(responseBody)
+                .build();
+        }
+        return response;
+    }
+
+}

libraries-http-2/src/main/java/com/baeldung/okhttp/interceptors/SimpleLoggingInterceptor.java

@@ -0,0 +1,25 @@
+package com.baeldung.okhttp.interceptors;
+
+import java.io.IOException;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import okhttp3.Interceptor;
+import okhttp3.Request;
+import okhttp3.Response;
+
+public class SimpleLoggingInterceptor implements Interceptor {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(SimpleLoggingInterceptor.class);
+
+    @Override
+    public Response intercept(Chain chain) throws IOException {
+        Request request = chain.request();
+
+        LOGGER.info("Intercepted headers: {} from URL: {}", request.headers(), request.url());
+
+        return chain.proceed(request);
+    }
+
+}