enhancing query capabilities

src/main/java/org/gcube/informationsystem/resourceregistry/query/json/JsonQueryIsRelatedTo.java

@@ -26,75 +26,73 @@ public class JsonQueryIsRelatedTo extends JsonQueryERElement{
 		this.requestedResourceType = requestedResourceType;
 	}
 	
+	private StringBuffer traverseThisEdge(StringBuffer stringBuffer) throws InvalidQueryException {
+		StringBuffer buffer = new StringBuffer();
+		
+		int size = jsonNode.size();
+		if(size > 2) {
+			buffer.append("SELECT FROM ( "); // Open ( SELECT
+		}
+		
+		buffer.append("TRAVERSE ");
+		buffer.append(direction.opposite().name().toLowerCase());
+		buffer.append("E(\"");
+		buffer.append(type);
+		buffer.append("\") FROM (");
+		buffer.append(stringBuffer);
+		buffer.append(")");
+		
+		
+		stringBuffer = buffer;
+		
+		// Size 2 means that only '@class' and 'target'/'source' properties are present
+		if(size > 2) {
+			stringBuffer.append(") WHERE "); // Close ) SELECT
+			stringBuffer = addWhereConstraint(jsonNode, buffer, null);
+		}
+		
+		return stringBuffer;
+	}
+	
 	@Override
 	protected StringBuffer analize(StringBuffer stringBuffer) throws SchemaNotFoundException, InvalidQueryException {
-		StringBuffer isRelatedToBuffer = new StringBuffer();
+		
 		
 		JsonNode sourceJsonNode = jsonNode.get(ConsistsOf.SOURCE_PROPERTY);
 		JsonNode targetJsonNode = jsonNode.get(ConsistsOf.TARGET_PROPERTY);
 		
 		JsonNode resourceJsonNode = null;
 		
-		if(targetJsonNode!=null) {
+		if(sourceJsonNode!=null) {
-			resourceJsonNode = targetJsonNode;
-			direction = Direction.IN;
-		}else if(sourceJsonNode!=null) {
 			resourceJsonNode = sourceJsonNode;
 			direction = Direction.OUT;
+		} else if(targetJsonNode!=null) {
+			resourceJsonNode = targetJsonNode;
+			direction = Direction.IN;
 		}
 		
-		isRelatedToBuffer.append("TRAVERSE ");
+		stringBuffer = traverseThisEdge(stringBuffer);
-		isRelatedToBuffer.append(direction.opposite().name().toLowerCase());
-		isRelatedToBuffer.append("V(\"");
-		isRelatedToBuffer.append(requestedResourceType);
-		isRelatedToBuffer.append("\") FROM ("); // Open ( 1
-		
-		int size = jsonNode.size();
-		if(size > 2) {
-			isRelatedToBuffer.append("SELECT FROM ( "); // Open ( SELECT
-		}
-		
-		isRelatedToBuffer.append("TRAVERSE ");
-		isRelatedToBuffer.append(direction.name().toLowerCase());
-		isRelatedToBuffer.append("E(\"");
-		isRelatedToBuffer.append(type);
-		isRelatedToBuffer.append("\") FROM ("); // Open ( 2
-		
-		if(!entryPoint) {
-			StringBuffer buffer = new StringBuffer();
-			buffer.append(" TRAVERSE ");
-			buffer.append(direction.opposite().name().toLowerCase());
-			buffer.append("V(\"");
-			buffer.append(requestedResourceType);
-			buffer.append("\").");
-			buffer.append(direction.opposite().name().toLowerCase());		
-			buffer.append("E(\"");
-			buffer.append(type);
-			buffer.append("\") FROM (");
-			buffer.append(stringBuffer);
-			buffer.append(")");
-			
-			stringBuffer = buffer;
-		}
 		
 		JsonQueryResource jsonQueryResource = new JsonQueryResource(resourceJsonNode);
 		jsonQueryResource.setDirection(direction);
 		jsonQueryResource.setEntryPoint(false);
 		stringBuffer = jsonQueryResource.analize(stringBuffer);
 		
+		StringBuffer buffer = new StringBuffer();
+		buffer.append(" TRAVERSE ");
+		buffer.append(direction.opposite().name().toLowerCase());
+		buffer.append("V(\"");
+		buffer.append(requestedResourceType);
+		buffer.append("\").");
+		buffer.append(direction.name().toLowerCase());		
+		buffer.append("E(\"");
+		buffer.append(type);
+		buffer.append("\") FROM (");
+		buffer.append(stringBuffer);
+		buffer.append(")");
+		stringBuffer = buffer;
 		
-		isRelatedToBuffer.append(stringBuffer);
+		return stringBuffer;
-		isRelatedToBuffer.append(")"); // Close ) 2
-		
-		// Size 2 means that only '@class' and 'target'/'source' properties are present
-		if(size > 2) {
-			isRelatedToBuffer.append(") WHERE "); // Close ) SELECT
-			isRelatedToBuffer = addWhereConstraint(jsonNode, isRelatedToBuffer, null);
-		}
-		
-		isRelatedToBuffer.append(")"); // Close ) 1
-		
-		return isRelatedToBuffer;
 		
 	}
 

src/main/java/org/gcube/informationsystem/resourceregistry/query/json/JsonQueryResource.java

@@ -30,7 +30,7 @@ public class JsonQueryResource extends JsonQueryERElement {
 				JsonQueryConsistsOf jsonQueryConsistsOf = new JsonQueryConsistsOf(consistsOfJsonNode);
 				jsonQueryConsistsOf.setRequestedResourceType(type);
 				jsonQueryConsistsOf.setDirection(Direction.IN);
-				jsonQueryConsistsOf.setEntryPoint(i==0);
+				jsonQueryConsistsOf.setEntryPoint(entryPoint && i==0);
 				stringBuffer = jsonQueryConsistsOf.analize(stringBuffer);
 			}
 		}
@@ -41,7 +41,7 @@ public class JsonQueryResource extends JsonQueryERElement {
 				JsonNode isRelatedToJsonNode = isRelatedToArray.get(i);
 				JsonQueryIsRelatedTo jsonQueryIsRelatedTo = new JsonQueryIsRelatedTo(isRelatedToJsonNode);
 				jsonQueryIsRelatedTo.setRequestedResourceType(type);
-				jsonQueryIsRelatedTo.setEntryPoint(!initFound && i==0);
+				jsonQueryIsRelatedTo.setEntryPoint(entryPoint && !initFound && i==0);
 				stringBuffer = jsonQueryIsRelatedTo.analize(stringBuffer);
 			}
 			initFound = true; // Must be set after the cycle and not before

src/test/java/org/gcube/informationsystem/resourceregistry/query/query.json

@@ -32,7 +32,16 @@
 		{
 			"@class": "Activates",
 			"source": {
-				"@class": "HostingNode"
+				"@class": "HostingNode",
+				"consistsOf": [
+					{
+						"@class": "ConsistsOf",
+						"target": {
+							"@class": "CPUFacet",
+							"vendor": "GenuineIntel"
+						}
+					}
+				]
 			}
 		}
 	]