SPI for PubSubRequestExtractor and handshake request handler. Added interfaces

1. IPubsubRequestBodyExtractor
2. IPubsubHandshakehandler

notification-core/src/main/java/org/opengroup/osdu/notification/api/PubsubEndpoint.java

@@ -34,7 +34,8 @@ import org.opengroup.osdu.core.common.notification.ISubscriptionFactory;
 import org.opengroup.osdu.core.common.notification.ISubscriptionService;
 import org.opengroup.osdu.core.common.notification.SubscriptionException;
 import org.opengroup.osdu.notification.di.SubscriptionCacheFactory;
-import org.opengroup.osdu.notification.pubsub.PubsubRequestBodyExtractor;
+import org.opengroup.osdu.notification.pubsub.IPubsubHandshakeHandler;
+import org.opengroup.osdu.notification.pubsub.IPubsubRequestBodyExtractor;
 import org.opengroup.osdu.notification.utils.Config;
 import org.opengroup.osdu.notification.utils.IGoogleServiceAccount;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -56,7 +57,9 @@ import java.util.Map;
 @RequestMapping("/push-handlers")
 public class PubsubEndpoint {
     @Autowired
-    private PubsubRequestBodyExtractor pubsubRequestBodyExtractor;
+    private IPubsubRequestBodyExtractor pubsubRequestBodyExtractor;
+    @Autowired
+    private IPubsubHandshakeHandler pubsubHandshakeHandler;
     @Autowired
     private ISignatureService signatureService;
     @Autowired
@@ -83,6 +86,10 @@ public class PubsubEndpoint {
     @PostMapping("/records-changed")
     @PreAuthorize("@authorizationFilter.hasAnyPermission('" + Config.OPS + "', '" + Config.PUBSUB + "')")
     public ResponseEntity recordChanged() throws Exception {
+        if(this.pubsubRequestBodyExtractor.isHandshakeRequest()) {
+            this.pubsubHandshakeHandler.getHandshakeResponse();
+        }
+
         String notificationId = this.pubsubRequestBodyExtractor.extractNotificationIdFromRequestBody();
         String pubsubMessage = this.pubsubRequestBodyExtractor.extractDataFromRequestBody();
         Map<String, String> headerAttributes = this.pubsubRequestBodyExtractor.extractAttributesFromRequestBody();

notification-core/src/main/java/org/opengroup/osdu/notification/di/CredentialHeadersProvider.java

@@ -15,9 +15,10 @@
  */
 
 package org.opengroup.osdu.notification.di;
+
 import org.opengroup.osdu.core.common.model.http.DpsHeaders;
 import org.opengroup.osdu.core.common.util.IServiceAccountJwtClient;
-import org.opengroup.osdu.notification.pubsub.PubsubRequestBodyExtractor;
+import org.opengroup.osdu.notification.pubsub.IPubsubRequestBodyExtractor;
 import org.opengroup.osdu.notification.utils.IAppProperties;
 import org.springframework.beans.factory.FactoryBean;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -39,7 +40,7 @@ public class CredentialHeadersProvider implements FactoryBean<DpsHeaders> {
     private HttpServletRequest httpRequest;
 
     @Autowired
-    private PubsubRequestBodyExtractor pubsubRequestBodyExtractor;
+    private IPubsubRequestBodyExtractor pubsubRequestBodyExtractor;
 
     @Autowired
     private IServiceAccountJwtClient serviceAccountJwtClient;

notification-core/src/main/java/org/opengroup/osdu/notification/di/RequestInfoExt.java

@@ -19,7 +19,7 @@ package org.opengroup.osdu.notification.di;
 import com.google.api.client.util.Strings;
 import org.opengroup.osdu.core.common.model.http.DpsHeaders;
 import org.opengroup.osdu.core.common.model.http.RequestInfo;
-import org.opengroup.osdu.notification.pubsub.PubsubRequestBodyExtractor;
+import org.opengroup.osdu.notification.pubsub.IPubsubRequestBodyExtractor;
 import org.springframework.context.annotation.Primary;
 import org.springframework.stereotype.Component;
 import org.springframework.web.context.annotation.RequestScope;
@@ -40,7 +40,7 @@ public class RequestInfoExt extends RequestInfo {
     private HttpServletRequest httpRequest;
 
     @Inject
-    private PubsubRequestBodyExtractor requestBodyExtractor;
+    private IPubsubRequestBodyExtractor requestBodyExtractor;
 
     @Inject
     public RequestInfoExt(HttpServletRequest request) {

notification-core/src/main/java/org/opengroup/osdu/notification/pubsub/IPubsubHandshakeHandler.java

+package org.opengroup.osdu.notification.pubsub;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Component;
+
+@Component
+public interface IPubsubHandshakeHandler {
+    ResponseEntity getHandshakeResponse();
+}

notification-core/src/main/java/org/opengroup/osdu/notification/pubsub/IPubsubRequestBodyExtractor.java

+package org.opengroup.osdu.notification.pubsub;
+
+import org.springframework.stereotype.Component;
+import org.springframework.http.ResponseEntity;
+
+import java.util.Map;
+
+@Component
+public interface IPubsubRequestBodyExtractor {
+    Map<String, String> extractAttributesFromRequestBody() ;
+
+    String extractDataFromRequestBody();
+
+    String extractNotificationIdFromRequestBody() ;
+
+    boolean isHandshakeRequest();
+}

notification-core/src/test/java/org/opengroup/osdu/notification/api/PubsubEndpointTests.java

@@ -36,7 +36,7 @@ import org.opengroup.osdu.core.common.notification.SubscriptionFactory;
 import org.opengroup.osdu.core.common.notification.SubscriptionService;
 import org.opengroup.osdu.notification.di.CredentialHeadersProvider;
 import org.opengroup.osdu.notification.di.SubscriptionCacheFactory;
-import org.opengroup.osdu.notification.pubsub.PubsubRequestBodyExtractor;
+import org.opengroup.osdu.notification.pubsub.IPubsubRequestBodyExtractor;
 import org.opengroup.osdu.notification.utils.IGoogleServiceAccount;
 import org.powermock.modules.junit4.PowerMockRunner;
 import org.springframework.http.ResponseEntity;
@@ -54,7 +54,7 @@ import static org.mockito.Mockito.when;
 @RunWith(PowerMockRunner.class)
 public class PubsubEndpointTests {
     @Mock
-    private PubsubRequestBodyExtractor pubsubRequestBodyExtractor;
+    private IPubsubRequestBodyExtractor pubsubRequestBodyExtractor;
     @Mock
     private ISignatureService signatureService;
     @Mock

notification-core/src/test/java/org/opengroup/osdu/notification/auth/AuthorizationFilterTest.java

@@ -26,7 +26,7 @@ import org.opengroup.osdu.core.common.model.http.AppException;
 import org.opengroup.osdu.core.common.model.http.DpsHeaders;
 import org.opengroup.osdu.core.common.provider.interfaces.IAuthorizationService;
 import org.opengroup.osdu.notification.di.RequestInfoExt;
-import org.opengroup.osdu.notification.pubsub.PubsubRequestBodyExtractor;
+import org.opengroup.osdu.notification.pubsub.IPubsubRequestBodyExtractor;
 import org.opengroup.osdu.notification.utils.Config;
 import org.opengroup.osdu.notification.utils.ServiceAccountValidator;
 import org.powermock.modules.junit4.PowerMockRunner;
@@ -59,7 +59,7 @@ public class AuthorizationFilterTest {
     @Mock
     private ServiceAccountValidator validator;
     @Mock
-    private PubsubRequestBodyExtractor extractor;
+    private IPubsubRequestBodyExtractor extractor;
     @InjectMocks
     private AuthorizationFilter sut;
 

provider/notification-gcp/src/main/java/org/opengroup/osdu/notification/provider/gcp/pubsub/PubsubHandshakeHandler.java

+package org.opengroup.osdu.notification.provider.gcp.pubsub;
+
+import org.opengroup.osdu.notification.pubsub.IPubsubHandshakeHandler;
+import org.springframework.http.ResponseEntity;
+
+public class PubsubHandshakeHandler implements IPubsubHandshakeHandler {
+
+    @Override
+    public ResponseEntity getHandshakeResponse() {
+        return null;
+    }
+}

notification-core/src/main/java/org/opengroup/osdu/notification/pubsub/PubsubRequestBodyExtractor.java → provider/notification-gcp/src/main/java/org/opengroup/osdu/notification/provider/gcp/pubsub/PubsubRequestBodyExtractor.java

@@ -14,7 +14,7 @@
  *   limitations under the License.
  */
 
-package org.opengroup.osdu.notification.pubsub;
+package org.opengroup.osdu.notification.provider.gcp.pubsub;
 
 import com.google.common.base.Strings;
 import org.opengroup.osdu.core.common.logging.JaxRsDpsLog;
@@ -25,6 +25,7 @@ import com.google.gson.Gson;
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
 import com.google.gson.JsonParser;
+import org.opengroup.osdu.notification.pubsub.IPubsubRequestBodyExtractor;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Component;
@@ -41,7 +42,7 @@ import java.util.stream.Stream;
 
 @Component
 @RequestScope
-public class PubsubRequestBodyExtractor {
+public class PubsubRequestBodyExtractor implements IPubsubRequestBodyExtractor {
     private static final String INVALID_PUBSUB_MESSAGE = "Invalid pubsub message";
     private static final Gson GSON = new Gson();
     private MessageContent messageContent;
@@ -80,6 +81,10 @@ public class PubsubRequestBodyExtractor {
         return fullNotificationId[fullNotificationId.length - 1];
     }
 
+    public boolean isHandshakeRequest() {
+        return false;
+    }
+
     private MessageContent extractPubsubMessageFromRequestBody() {
         if (this.root == null) {
             this.root = this.extractRootJsonElementFromRequestBody();