* limitations under the License.
* ============LICENSE_END=========================================================
*/
+
package org.onap.aai.serialization.queryformats;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
-import org.apache.tinkerpop.gremlin.structure.Direction;
-import org.apache.tinkerpop.gremlin.structure.Vertex;
-import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONMapper;
-import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONWriter;
-import org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Map;
import java.util.Optional;
+import org.apache.tinkerpop.gremlin.structure.Direction;
+import org.apache.tinkerpop.gremlin.structure.Vertex;
+import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONMapper;
+import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONWriter;
+import org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry;
+
public class GraphSON implements FormatMapper {
- private final GraphSONMapper mapper = GraphSONMapper.build().addRegistry(JanusGraphIoRegistry.getInstance()).create();
- private final GraphSONWriter writer = GraphSONWriter.build().mapper(mapper).create();
- protected JsonParser parser = new JsonParser();
-
- @Override
- public Optional<JsonObject> formatObject(Object v) {
- OutputStream os = new ByteArrayOutputStream();
- String result = "";
- try {
- writer.writeVertex(os, (Vertex)v, Direction.BOTH);
-
- result = os.toString();
- } catch (IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
-
- JsonObject jsonObject = parser.parse(result).getAsJsonObject();
-
- if(jsonObject != null){
-
- if(jsonObject.has("outE")){
- JsonObject outEdges = jsonObject.get("outE").getAsJsonObject();
- removePrivateEdges(jsonObject, outEdges, "outE");
- }
-
- if(jsonObject.has("inE")){
- JsonObject inEdges = jsonObject.get("inE").getAsJsonObject();
- removePrivateEdges(jsonObject, inEdges, "inE");
- }
-
- }
-
- return Optional.of(jsonObject);
-
- }
-
- /**
- * Removes the private edges from the json object
- *
- * Please note that the reason to choose to remove the private
- * edges from the json object instead of removing it from the vertex
- * itself is the fact that even though the transaction will be rolled back
- * is because of the possible incosistent behavior where the actual edge
- * might actually be removed in a long running transaction and is not worth the risk
- *
- * @param jsonObject - JSON Object from which we are removing the private edges for
- * @param edges - JSONObject HashMap representing all of the edges
- * @param edgeDirection - a string indicating the direction of the edge
- */
- private void removePrivateEdges(JsonObject jsonObject, JsonObject edges, String edgeDirection) {
-
- Iterator it = edges.entrySet().iterator();
- while(it.hasNext()){
- Map.Entry<String, JsonElement> outEntry = (Map.Entry<String, JsonElement>) it.next();
- JsonArray edgePropertiesArray = outEntry.getValue().getAsJsonArray();
- for(int index = 0; index < edgePropertiesArray.size(); ++index){
- JsonElement jsonElement = edgePropertiesArray.get(index);
- JsonObject obj = jsonElement.getAsJsonObject();
- if (obj.has("properties")) {
- JsonObject objProperties = obj.get("properties").getAsJsonObject();
- if (objProperties.has("private")) {
- boolean isPrivate = objProperties.get("private").getAsBoolean();
- if (isPrivate) {
- if (edges.size() == 1) {
- if (edgePropertiesArray.size() == 1) {
- jsonObject.remove(edgeDirection);
- } else {
- edgePropertiesArray.remove(jsonElement);
- }
- } else {
- edgePropertiesArray.remove(jsonElement);
- }
- }
- }
- }
- }
- if(edgePropertiesArray.size() == 0){
- it.remove();
- }
- }
- }
-
- @Override
- public int parallelThreshold() {
- return 50;
- }
+ private final GraphSONMapper mapper =
+ GraphSONMapper.build().addRegistry(JanusGraphIoRegistry.getInstance()).create();
+ private final GraphSONWriter writer = GraphSONWriter.build().mapper(mapper).create();
+ protected JsonParser parser = new JsonParser();
+
+ @Override
+ public Optional<JsonObject> formatObject(Object v) {
+ OutputStream os = new ByteArrayOutputStream();
+ String result = "";
+ try {
+ writer.writeVertex(os, (Vertex) v, Direction.BOTH);
+
+ result = os.toString();
+ } catch (IOException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
+
+ JsonObject jsonObject = parser.parse(result).getAsJsonObject();
+
+ if (jsonObject != null) {
+
+ if (jsonObject.has("outE")) {
+ JsonObject outEdges = jsonObject.get("outE").getAsJsonObject();
+ removePrivateEdges(jsonObject, outEdges, "outE");
+ }
+
+ if (jsonObject.has("inE")) {
+ JsonObject inEdges = jsonObject.get("inE").getAsJsonObject();
+ removePrivateEdges(jsonObject, inEdges, "inE");
+ }
+
+ }
+
+ return Optional.of(jsonObject);
+
+ }
+
+ /**
+ * Removes the private edges from the json object
+ *
+ * Please note that the reason to choose to remove the private
+ * edges from the json object instead of removing it from the vertex
+ * itself is the fact that even though the transaction will be rolled back
+ * is because of the possible incosistent behavior where the actual edge
+ * might actually be removed in a long running transaction and is not worth the risk
+ *
+ * @param jsonObject - JSON Object from which we are removing the private edges for
+ * @param edges - JSONObject HashMap representing all of the edges
+ * @param edgeDirection - a string indicating the direction of the edge
+ */
+ private void removePrivateEdges(JsonObject jsonObject, JsonObject edges, String edgeDirection) {
+
+ Iterator it = edges.entrySet().iterator();
+ while (it.hasNext()) {
+ Map.Entry<String, JsonElement> outEntry = (Map.Entry<String, JsonElement>) it.next();
+ JsonArray edgePropertiesArray = outEntry.getValue().getAsJsonArray();
+ for (int index = 0; index < edgePropertiesArray.size(); ++index) {
+ JsonElement jsonElement = edgePropertiesArray.get(index);
+ JsonObject obj = jsonElement.getAsJsonObject();
+ if (obj.has("properties")) {
+ JsonObject objProperties = obj.get("properties").getAsJsonObject();
+ if (objProperties.has("private")) {
+ boolean isPrivate = objProperties.get("private").getAsBoolean();
+ if (isPrivate) {
+ if (edges.size() == 1) {
+ if (edgePropertiesArray.size() == 1) {
+ jsonObject.remove(edgeDirection);
+ } else {
+ edgePropertiesArray.remove(jsonElement);
+ }
+ } else {
+ edgePropertiesArray.remove(jsonElement);
+ }
+ }
+ }
+ }
+ }
+ if (edgePropertiesArray.size() == 0) {
+ it.remove();
+ }
+ }
+ }
+
+ @Override
+ public int parallelThreshold() {
+ return 50;
+ }
}
Code Review / aai / aai-common.git / blobdiff