Apply multiplicity Rule upon Edge creation

Uses multiplicity type from dbedge rules json to validate whether to and
from vertices meet the multiplicity constraint e.g. ONE2MANY.

This validation is applied when creating or updating an edge.

Issue-ID: AAI-1197

Change-Id: Id6e78635c5cbea66d8a35e6901b7e1b673125e4e
Signed-off-by: michaere <michaere@amdocs.com>

8 files changed, 79 insertions, 328 deletions

diff --git a/src/main/java/org/onap/crud/service/AaiResourceService.java b/src/main/java/org/onap/crud/service/AaiResourceService.java
index afabe7e..c0375b4 100644
--- a/src/main/java/org/onap/crud/service/AaiResourceService.java
+++ b/src/main/java/org/onap/crud/service/AaiResourceService.java
@@ -54,10 +54,11 @@ import org.onap.aaiauth.auth.Auth;
 import org.onap.crud.exception.CrudException;

 import org.onap.crud.logging.CrudServiceMsgs;

 import org.onap.crud.logging.LoggingUtil;

+import org.onap.crud.parser.EdgePayload;

+import org.onap.crud.parser.util.EdgePayloadUtil;

 import org.onap.crud.service.CrudRestService.Action;

 import org.onap.crud.util.CrudServiceConstants;

 import org.onap.schema.EdgeRulesLoader;

-import org.onap.schema.RelationshipSchemaValidator;

 import org.slf4j.MDC;

 import com.google.gson.Gson;

 import com.google.gson.JsonElement;

@@ -397,16 +398,15 @@ public class AaiResourceService {
   public EdgePayload applyEdgeRulesToPayload(EdgePayload payload) throws CrudException {

 

     // Extract the types for both the source and target vertices.

-    String srcType = RelationshipSchemaValidator.vertexTypeFromUri(payload.getSource());

-    String tgtType = RelationshipSchemaValidator.vertexTypeFromUri(payload.getTarget());

+    String srcType = EdgePayloadUtil.getVertexNodeType(payload.getSource());

+    String tgtType = EdgePayloadUtil.getVertexNodeType(payload.getTarget());

 

-      // Now, get the default properties for this edge based on the edge rules definition...

-      Map<EdgeProperty, String> props = getEdgeRuleProperties(srcType, tgtType);

-

-      // ...and merge them with any custom properties provided in the request.

-      JsonElement mergedProperties = mergeProperties(payload.getProperties(), props);

-      payload.setProperties(mergedProperties);

+    // Now, get the default properties for this edge based on the edge rules definition...

+    Map<EdgeProperty, String> props = getEdgeRuleProperties(srcType, tgtType);

 

+    // ...and merge them with any custom properties provided in the request.

+    JsonElement mergedProperties = mergeProperties(payload.getProperties(), props);

+    payload.setProperties(mergedProperties);

 

     if(logger.isDebugEnabled()) {

       logger.debug("Edge properties after applying rules for '" + srcType + " -> " + tgtType + "': " + mergedProperties);

@@ -430,6 +430,7 @@ public class AaiResourceService {
    *

    * @throws CrudException

    */

+  @SuppressWarnings("unchecked")

   public JsonElement mergeProperties(JsonElement propertiesFromRequest, Map<EdgeProperty, String> propertyDefaults) throws CrudException {

 

     // Convert the properties from the edge payload into something we can

diff --git a/src/main/java/org/onap/crud/service/AbstractGraphDataService.java b/src/main/java/org/onap/crud/service/AbstractGraphDataService.java
index 7c1168e..fed12fd 100644
--- a/src/main/java/org/onap/crud/service/AbstractGraphDataService.java
+++ b/src/main/java/org/onap/crud/service/AbstractGraphDataService.java
@@ -36,10 +36,14 @@ import org.onap.crud.dao.champ.ChampVertexSerializer;
 import org.onap.crud.entity.Edge;
 import org.onap.crud.entity.Vertex;
 import org.onap.crud.exception.CrudException;
+import org.onap.crud.parser.BulkPayload;
 import org.onap.crud.parser.CrudResponseBuilder;
+import org.onap.crud.parser.EdgePayload;
+import org.onap.crud.parser.VertexPayload;
+import org.onap.crud.parser.util.EdgePayloadUtil;
 import org.onap.crud.util.CrudServiceUtil;
-import org.onap.schema.OxmModelValidator;
-import org.onap.schema.RelationshipSchemaValidator;
+import org.onap.schema.validation.OxmModelValidator;
+import org.onap.schema.validation.RelationshipSchemaValidator;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.JsonElement;
@@ -228,12 +232,31 @@ public abstract class AbstractGraphDataService {
               edgePayload
                   .setTarget("services/inventory/" + version + "/" + target.getType() + "/" + target.getId().get());
             }
-            validatedEdge = RelationshipSchemaValidator.validateIncomingAddPayload(version, edgePayload.getType(),
-                edgePayload);
+
+            List<Edge> sourceVertexEdges =
+                    EdgePayloadUtil.filterEdgesByRelatedVertexAndType(EdgePayloadUtil.getVertexNodeType(edgePayload.getSource()), edgePayload.getType(),
+                                 daoForGet.getVertexEdges(EdgePayloadUtil.getVertexNodeId(edgePayload.getSource()), null));
+
+            List<Edge> targetVertexEdges =
+                     EdgePayloadUtil.filterEdgesByRelatedVertexAndType(EdgePayloadUtil.getVertexNodeType(edgePayload.getTarget()), edgePayload.getType(),
+                                 daoForGet.getVertexEdges(EdgePayloadUtil.getVertexNodeId(edgePayload.getTarget()), null));
+
+            validatedEdge = RelationshipSchemaValidator.validateIncomingAddPayload(version, edgePayload.getType(), edgePayload, sourceVertexEdges,
+                    targetVertexEdges);
             persistedEdge = addBulkEdge(validatedEdge, version, txId);
           } else if (opr.getValue().getAsString().equalsIgnoreCase("modify")) {
             Edge edge = dao.getEdge(edgePayload.getId(), edgePayload.getType(), txId);
-            validatedEdge = RelationshipSchemaValidator.validateIncomingUpdatePayload(edge, version, edgePayload);
+
+            // load source and target vertex relationships for validation
+            List<Edge> sourceVertexEdges =
+                   EdgePayloadUtil.filterEdgesByRelatedVertexAndType(EdgePayloadUtil.getVertexNodeType(edgePayload.getSource()), edgePayload.getType(),
+                                daoForGet.getVertexEdges(EdgePayloadUtil.getVertexNodeId(edgePayload.getSource()), null));
+
+            List<Edge> targetVertexEdges =
+                    EdgePayloadUtil.filterEdgesByRelatedVertexAndType(EdgePayloadUtil.getVertexNodeType(edgePayload.getTarget()), edgePayload.getType(),
+                                daoForGet.getVertexEdges(EdgePayloadUtil.getVertexNodeId(edgePayload.getTarget()), null));
+
+            validatedEdge = RelationshipSchemaValidator.validateIncomingUpdatePayload(edge, version, edgePayload, edgePayload.getType(), sourceVertexEdges, targetVertexEdges);
             persistedEdge = updateBulkEdge(validatedEdge, version, txId);
           } else {
             if ( (edgePayload.getId() == null) || (edgePayload.getType() == null) ) {
diff --git a/src/main/java/org/onap/crud/service/BulkPayload.java b/src/main/java/org/onap/crud/service/BulkPayload.java
deleted file mode 100644
index 8dc99c4..0000000
--- a/src/main/java/org/onap/crud/service/BulkPayload.java
+++ /dev/null
@@ -1,80 +0,0 @@
-/**
- * ============LICENSE_START=======================================================
- * org.onap.aai
- * ================================================================================
- * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
- * Copyright © 2017-2018 Amdocs
- * ================================================================================
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *       http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * ============LICENSE_END=========================================================
- */
-package org.onap.crud.service;
-
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-import com.google.gson.JsonElement;
-
-import org.onap.crud.exception.CrudException;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import javax.ws.rs.core.Response.Status;
-
-public class BulkPayload {
-  public enum OperationType {
-    CREATE, UPDATE, DELETE
-  }
-
-  private List<JsonElement> objects = new ArrayList<JsonElement>();
-  private List<JsonElement> relationships = new ArrayList<JsonElement>();
-
-  private static final Gson gson = new GsonBuilder().disableHtmlEscaping().create();
-
-  public String toJson() {
-    return gson.toJson(this);
-  }
-
-  public static BulkPayload fromJson(String payload) throws CrudException {
-    try {
-      if (payload == null || payload.isEmpty()) {
-        throw new CrudException("Invalid Json Payload", Status.BAD_REQUEST);
-      }
-      return gson.fromJson(payload, BulkPayload.class);
-    } catch (Exception ex) {
-      throw new CrudException("Invalid Json Payload", Status.BAD_REQUEST);
-    }
-  }
-
-  public List<JsonElement> getObjects() {
-    return objects;
-  }
-
-  public void setObjects(List<JsonElement> objects) {
-    this.objects = objects;
-  }
-
-  public List<JsonElement> getRelationships() {
-    return relationships;
-  }
-
-  public void setRelationships(List<JsonElement> relationships) {
-    this.relationships = relationships;
-  }
-
-  @Override
-  public String toString() {
-    return "BulkPayload [objects=" + objects + ", relationships=" + relationships + "]";
-  }
-
-}
\ No newline at end of file
diff --git a/src/main/java/org/onap/crud/service/CrudAsyncGraphDataService.java b/src/main/java/org/onap/crud/service/CrudAsyncGraphDataService.java
index 6b447a1..c2d2591 100644
--- a/src/main/java/org/onap/crud/service/CrudAsyncGraphDataService.java
+++ b/src/main/java/org/onap/crud/service/CrudAsyncGraphDataService.java
@@ -56,11 +56,13 @@ import org.onap.crud.event.envelope.GraphEventEnvelope;
 import org.onap.crud.event.response.GraphEventResponseHandler;
 import org.onap.crud.exception.CrudException;
 import org.onap.crud.logging.CrudServiceMsgs;
+import org.onap.crud.parser.EdgePayload;
+import org.onap.crud.parser.VertexPayload;
 import org.onap.crud.util.CrudProperties;
 import org.onap.crud.util.CrudServiceConstants;
 import org.onap.crud.util.etag.EtagGenerator;
-import org.onap.schema.OxmModelValidator;
-import org.onap.schema.RelationshipSchemaValidator;
+import org.onap.schema.validation.OxmModelValidator;
+import org.onap.schema.validation.RelationshipSchemaValidator;
 
 public class CrudAsyncGraphDataService extends AbstractGraphDataService {
 
@@ -211,7 +213,7 @@ public class CrudAsyncGraphDataService extends AbstractGraphDataService {
             throws CrudException {
         // Validate the incoming payload
         Vertex vertex = OxmModelValidator.validateIncomingUpsertPayload(null, version, type, payload.getProperties());
-        vertex.getProperties().put(org.onap.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+        vertex.getProperties().put(OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
         // Create graph request event
         GraphEvent event = GraphEvent.builder(GraphEventOperation.CREATE)
                 .vertex(GraphEventVertex.fromVertex(vertex, version)).build();
@@ -233,6 +235,7 @@ public class CrudAsyncGraphDataService extends AbstractGraphDataService {
     public ImmutablePair<EntityTag, String> addEdge(String version, String type, EdgePayload payload)
             throws CrudException {
         Edge edge = RelationshipSchemaValidator.validateIncomingAddPayload(version, type, payload);
+
         // Create graph request event
         GraphEvent event =
                 GraphEvent.builder(GraphEventOperation.CREATE).edge(GraphEventEdge.fromEdge(edge, version)).build();
@@ -320,6 +323,7 @@ public class CrudAsyncGraphDataService extends AbstractGraphDataService {
         OperationResult operationResult = dao.getEdge(id, type, new HashMap<String, String>());
         Edge edge = Edge.fromJson(operationResult.getResult());
         Edge validatedEdge = RelationshipSchemaValidator.validateIncomingUpdatePayload(edge, version, payload);
+
         GraphEvent event = GraphEvent.builder(GraphEventOperation.UPDATE)
                 .edge(GraphEventEdge.fromEdge(validatedEdge, version)).build();
 
diff --git a/src/main/java/org/onap/crud/service/CrudGraphDataService.java b/src/main/java/org/onap/crud/service/CrudGraphDataService.java
index 5b1c2dd..2888ace 100644
--- a/src/main/java/org/onap/crud/service/CrudGraphDataService.java
+++ b/src/main/java/org/onap/crud/service/CrudGraphDataService.java
@@ -22,6 +22,7 @@ package org.onap.crud.service;
 
 
 import java.util.HashMap;
+import java.util.List;
 import javax.ws.rs.core.EntityTag;
 import org.apache.commons.lang3.tuple.ImmutablePair;
 import org.onap.aai.restclient.client.OperationResult;
@@ -30,9 +31,12 @@ import org.onap.crud.entity.Edge;
 import org.onap.crud.entity.Vertex;
 import org.onap.crud.exception.CrudException;
 import org.onap.crud.parser.CrudResponseBuilder;
+import org.onap.crud.parser.EdgePayload;
+import org.onap.crud.parser.VertexPayload;
+import org.onap.crud.parser.util.EdgePayloadUtil;
 import org.onap.crud.util.CrudServiceUtil;
-import org.onap.schema.OxmModelValidator;
-import org.onap.schema.RelationshipSchemaValidator;
+import org.onap.schema.validation.OxmModelValidator;
+import org.onap.schema.validation.RelationshipSchemaValidator;
 
 
 public class CrudGraphDataService extends AbstractGraphDataService {
@@ -70,7 +74,17 @@ public class CrudGraphDataService extends AbstractGraphDataService {
   @Override
   public ImmutablePair<EntityTag, String> addEdge(String version, String type, EdgePayload payload)
             throws CrudException {
-    Edge edge = RelationshipSchemaValidator.validateIncomingAddPayload(version, type, payload);
+    // load source and target vertex relationships for validation
+    List<Edge> sourceVertexEdges =
+             EdgePayloadUtil.filterEdgesByRelatedVertexAndType(EdgePayloadUtil.getVertexNodeType(payload.getSource()), type,
+                          daoForGet.getVertexEdges(EdgePayloadUtil.getVertexNodeId(payload.getSource()), null));
+
+    List<Edge> targetVertexEdges =
+              EdgePayloadUtil.filterEdgesByRelatedVertexAndType(EdgePayloadUtil.getVertexNodeType(payload.getTarget()), type,
+                          daoForGet.getVertexEdges(EdgePayloadUtil.getVertexNodeId(payload.getTarget()), null));
+
+    Edge edge = RelationshipSchemaValidator.validateIncomingAddPayload(version, type, payload, sourceVertexEdges, targetVertexEdges);
+
     return addEdge(version, edge);
   }
 
@@ -133,7 +147,20 @@ public class CrudGraphDataService extends AbstractGraphDataService {
   @Override
   public ImmutablePair<EntityTag, String> updateEdge(String version, String id, String type, EdgePayload payload)
             throws CrudException {
-    Edge validatedEdge = getValidatedEdge(version, id, type, payload);
+    OperationResult edgeResult = dao.getEdge(id, type, new HashMap<String, String>());
+    Edge edge = Edge.fromJson(edgeResult.getResult());
+
+    // load source and target vertex relationships for validation
+    List<Edge> sourceVertexEdges =
+             EdgePayloadUtil.filterEdgesByRelatedVertexAndType(EdgePayloadUtil.getVertexNodeType(payload.getSource()), type,
+                          daoForGet.getVertexEdges(EdgePayloadUtil.getVertexNodeId(payload.getSource()), null));
+
+    List<Edge> targetVertexEdges =
+              EdgePayloadUtil.filterEdgesByRelatedVertexAndType(EdgePayloadUtil.getVertexNodeType(payload.getTarget()), type,
+                          daoForGet.getVertexEdges(EdgePayloadUtil.getVertexNodeId(payload.getTarget()), null));
+
+    Edge validatedEdge = RelationshipSchemaValidator.validateIncomingUpdatePayload(edge, version, payload, type, sourceVertexEdges, targetVertexEdges);
+
     return updateEdge(version, validatedEdge);
   }
 
@@ -152,11 +179,6 @@ public class CrudGraphDataService extends AbstractGraphDataService {
       .buildUpsertEdgeResponse(RelationshipSchemaValidator.validateOutgoingPayload(version, updatedEdge), version);
   }
 
-  private Edge getValidatedEdge(String version, String id, String type, EdgePayload payload) throws CrudException {
-      OperationResult operationResult = dao.getEdge(id, type, new HashMap<String, String>());
-    return RelationshipSchemaValidator.validateIncomingUpdatePayload(Edge.fromJson(operationResult.getResult()), version, payload);
-  }
-
   @Override
   public ImmutablePair<EntityTag, String> patchEdge(String version, String id, String type, EdgePayload payload)
             throws CrudException {
diff --git a/src/main/java/org/onap/crud/service/CrudRestService.java b/src/main/java/org/onap/crud/service/CrudRestService.java
index 583fee6..a43d7e5 100644
--- a/src/main/java/org/onap/crud/service/CrudRestService.java
+++ b/src/main/java/org/onap/crud/service/CrudRestService.java
@@ -52,6 +52,9 @@ import org.onap.aaiauth.auth.Auth;
 import org.onap.crud.exception.CrudException;
 import org.onap.crud.logging.CrudServiceMsgs;
 import org.onap.crud.logging.LoggingUtil;
+import org.onap.crud.parser.BulkPayload;
+import org.onap.crud.parser.EdgePayload;
+import org.onap.crud.parser.VertexPayload;
 import org.onap.crud.util.CrudProperties;
 import org.onap.crud.util.CrudServiceConstants;
 import org.onap.crud.util.CrudServiceUtil;
diff --git a/src/main/java/org/onap/crud/service/EdgePayload.java b/src/main/java/org/onap/crud/service/EdgePayload.java
deleted file mode 100644
index a670b54..0000000
--- a/src/main/java/org/onap/crud/service/EdgePayload.java
+++ /dev/null
@@ -1,110 +0,0 @@
-/**
- * ============LICENSE_START=======================================================
- * org.onap.aai
- * ================================================================================
- * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
- * Copyright © 2017-2018 Amdocs
- * ================================================================================
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *       http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * ============LICENSE_END=========================================================
- */
-package org.onap.crud.service;
-
-import javax.ws.rs.core.Response.Status;
-import org.onap.crud.exception.CrudException;
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-import com.google.gson.JsonElement;
-
-public class EdgePayload {
-
-  private String id;
-  private String type;
-  private String url;
-  private String source;
-  private String target;
-  private JsonElement properties;
-
-  private static final Gson gson = new GsonBuilder().disableHtmlEscaping().create();
-
-
-  @Override
-  public String toString() {
-    return "EdgePayload [id=" + id + ", type=" + type + ", url=" + url + ", source="
-        + source + ", target=" + target + ", properties=" + properties + "]";
-  }
-
-  public String toJson() {
-    return gson.toJson(this);
-  }
-
-  public static EdgePayload fromJson(String payload) throws CrudException {
-    try {
-      if (payload == null || payload.isEmpty()) {
-        throw new CrudException("Invalid Json Payload", Status.BAD_REQUEST);
-      }
-      return gson.fromJson(payload, EdgePayload.class);
-    } catch (Exception ex) {
-      throw new CrudException("Invalid Json Payload", Status.BAD_REQUEST);
-    }
-  }
-
-  public String getId() {
-    return id;
-  }
-
-  public void setId(String id) {
-    this.id = id;
-  }
-
-  public String getType() {
-    return type;
-  }
-
-  public void setType(String type) {
-    this.type = type;
-  }
-
-  public String getUrl() {
-    return url;
-  }
-
-  public void setUrl(String url) {
-    this.url = url;
-  }
-
-  public String getSource() {
-    return source;
-  }
-
-  public void setSource(String source) {
-    this.source = source;
-  }
-
-  public String getTarget() {
-    return target;
-  }
-
-  public void setTarget(String target) {
-    this.target = target;
-  }
-
-  public JsonElement getProperties() {
-    return properties;
-  }
-
-  public void setProperties(JsonElement properties) {
-    this.properties = properties;
-  }
-
-}
\ No newline at end of file
diff --git a/src/main/java/org/onap/crud/service/VertexPayload.java b/src/main/java/org/onap/crud/service/VertexPayload.java
deleted file mode 100644
index 172d03b..0000000
--- a/src/main/java/org/onap/crud/service/VertexPayload.java
+++ /dev/null
@@ -1,112 +0,0 @@
-/**
- * ============LICENSE_START=======================================================
- * org.onap.aai
- * ================================================================================
- * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
- * Copyright © 2017-2018 Amdocs
- * ================================================================================
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *       http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * ============LICENSE_END=========================================================
- */
-package org.onap.crud.service;
-
-import java.util.ArrayList;
-import java.util.List;
-import javax.ws.rs.core.Response.Status;
-import org.onap.crud.exception.CrudException;
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-import com.google.gson.JsonElement;
-
-public class VertexPayload {
-
-  private String id;
-  private String type;
-  private String url;
-  private JsonElement properties;
-  private List<EdgePayload> in = new ArrayList<EdgePayload>();
-  private List<EdgePayload> out = new ArrayList<EdgePayload>();
-
-  private static final Gson gson = new GsonBuilder().disableHtmlEscaping().create();
-
-  public String toJson() {
-    return gson.toJson(this);
-  }
-
-  public static VertexPayload fromJson(String payload) throws CrudException {
-    try {
-      if (payload == null || payload.isEmpty()) {
-        throw new CrudException("Invalid Json Payload", Status.BAD_REQUEST);
-      }
-      return gson.fromJson(payload, VertexPayload.class);
-    } catch (Exception ex) {
-      throw new CrudException("Invalid Json Payload", Status.BAD_REQUEST);
-    }
-  }
-
-  public String getId() {
-    return id;
-  }
-
-  public void setId(String id) {
-    this.id = id;
-  }
-
-  public String getType() {
-    return type;
-  }
-
-  public void setType(String type) {
-    this.type = type;
-  }
-
-  public String getUrl() {
-    return url;
-  }
-
-  public void setUrl(String url) {
-    this.url = url;
-  }
-
-  public JsonElement getProperties() {
-    return properties;
-  }
-
-  public void setProperties(JsonElement properties) {
-    this.properties = properties;
-  }
-
-  public List<EdgePayload> getIn() {
-    return in;
-  }
-
-  public void setIn(List<EdgePayload> in) {
-    this.in = in;
-  }
-
-  public List<EdgePayload> getOut() {
-    return out;
-  }
-
-  public void setOut(List<EdgePayload> out) {
-    this.out = out;
-  }
-
-
-  @Override
-  public String toString() {
-    return "VertexPayload [id=" + id + ", type=" + type + ", url=" + url + ", properties="
-        + properties + ", in=" + in + ", out=" + out + "]";
-  }
-
-}
\ No newline at end of file