Add to aai-common query builder get parent step

Issue-ID: AAI-962
Change-Id: Ib4aa4ec3453f2c7099e1d7191917b44b323f2bb6
Signed-off-by: Maharajh, Robby (rx2202) <rx2202@att.com>

3 files changed, 71 insertions, 2 deletions

diff --git a/aai-core/src/main/java/org/onap/aai/query/builder/GraphTraversalBuilder.java b/aai-core/src/main/java/org/onap/aai/query/builder/GraphTraversalBuilder.java
index 85b484a7..b298dbb9 100644
--- a/aai-core/src/main/java/org/onap/aai/query/builder/GraphTraversalBuilder.java
+++ b/aai-core/src/main/java/org/onap/aai/query/builder/GraphTraversalBuilder.java
@@ -26,6 +26,7 @@ import java.util.Optional;
 import java.util.Set;
 
 import org.apache.tinkerpop.gremlin.process.traversal.P;
+import org.apache.tinkerpop.gremlin.process.traversal.Path;
 import org.apache.tinkerpop.gremlin.process.traversal.Traversal;
 import org.apache.tinkerpop.gremlin.process.traversal.Traversal.Admin;
 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal;
@@ -477,6 +478,16 @@ public abstract class GraphTraversalBuilder<E> extends QueryBuilder<E> {
 		stepIndex++;
 		return this;
 	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public QueryBuilder<Path> path(){
+		this.traversal.path();
+		stepIndex++;
+		return (QueryBuilder<Path>)this;
+	}
 	
 	@Override
 	public QueryBuilder<Edge> outE() {
@@ -757,4 +768,9 @@ public abstract class GraphTraversalBuilder<E> extends QueryBuilder<E> {
 		return this.completeTraversal.toList();
 	}
 
+	protected QueryBuilder<Edge> has(String key, String value) {
+		traversal.has(key, value);
+
+		return (QueryBuilder<Edge>)this;
+	}
 }
diff --git a/aai-core/src/main/java/org/onap/aai/query/builder/GremlinQueryBuilder.java b/aai-core/src/main/java/org/onap/aai/query/builder/GremlinQueryBuilder.java
index 55faa4dc..010dfa50 100644
--- a/aai-core/src/main/java/org/onap/aai/query/builder/GremlinQueryBuilder.java
+++ b/aai-core/src/main/java/org/onap/aai/query/builder/GremlinQueryBuilder.java
@@ -25,6 +25,8 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
+import com.google.common.base.Joiner;
+import org.apache.tinkerpop.gremlin.process.traversal.Path;
 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal;
 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
 import org.apache.tinkerpop.gremlin.structure.Direction;
@@ -525,6 +527,16 @@ public abstract class GremlinQueryBuilder<E> extends QueryBuilder<E> {
 		stepIndex++;
 		return this;
 	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public QueryBuilder<Path> path(){
+		this.list.add(".path()");
+		stepIndex++;
+		return (QueryBuilder<Path>)this;
+	}
 	
 	@Override
 	public QueryBuilder<Edge> outE() {
@@ -678,5 +690,11 @@ public abstract class GremlinQueryBuilder<E> extends QueryBuilder<E> {
 		
 		return (List<E>)this.completeTraversal.toList();
 	}
+
+	protected QueryBuilder<Edge> has(String key, String value) {
+		this.list.add(".has('" + key + "','" + value + "')");
+
+		return (QueryBuilder<Edge>)this;
+	}
 	
 }
diff --git a/aai-core/src/main/java/org/onap/aai/query/builder/QueryBuilder.java b/aai-core/src/main/java/org/onap/aai/query/builder/QueryBuilder.java
index 89c15f25..0350aba2 100644
--- a/aai-core/src/main/java/org/onap/aai/query/builder/QueryBuilder.java
+++ b/aai-core/src/main/java/org/onap/aai/query/builder/QueryBuilder.java
@@ -27,6 +27,7 @@ import java.util.Map;
 
 import javax.ws.rs.core.MultivaluedMap;
 
+import org.apache.tinkerpop.gremlin.process.traversal.Path;
 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
 import org.apache.tinkerpop.gremlin.structure.Edge;
 import org.apache.tinkerpop.gremlin.structure.Vertex;
@@ -36,6 +37,8 @@ import org.onap.aai.introspection.Introspector;
 import org.onap.aai.introspection.Loader;
 import org.onap.aai.parsers.query.QueryParser;
 import org.onap.aai.parsers.query.QueryParserStrategy;
+import org.onap.aai.serialization.db.AAIDirection;
+import org.onap.aai.serialization.db.EdgeProperty;
 import org.onap.aai.serialization.db.EdgeType;
 
 /**
@@ -405,16 +408,48 @@ public abstract class QueryBuilder<E> implements Iterator<E> {
 	 * @return a QueryBuilder with the simplePath step appended to its traversal
 	 */
 	public abstract QueryBuilder<E> simplePath();
+
+	/**
+	 *
+	 * @return QueryBuilder with the path step appended to its traversal
+	 */
+	public abstract QueryBuilder<Path> path();
 	
  	public abstract void markContainer();
 
 	public abstract QueryBuilder<E> getContainerQuery();
 
 	public abstract List<E> toList();
-	
+
+	/**
+	 * Used to skip step if there is an optional property missing.
+	 * @param key
+	 * @param value
+	 * @return
+	 */
 	public QueryBuilder<Vertex> getVerticesByProperty(String key, MissingOptionalParameter value) {
 		return (QueryBuilder<Vertex>) this;
 	}
 
-		
+	/**
+	 * TODO the edge direction is hardcoded here, make it more generic
+	 * Returns the parent edge of the vertex
+	 * @return
+	 */
+	public QueryBuilder<Edge> getParentEdge() {
+		this.outE().has(EdgeProperty.CONTAINS.toString(), AAIDirection.IN.toString());
+		return (QueryBuilder<Edge>)this;
+	}
+
+	/**
+	 * TODO the edge direction is hardcoded here, make it more generic
+	 * Returns the parent vertex of the vertex
+	 * @return
+	 */
+	public QueryBuilder<Vertex> getParentVertex() {
+		this.getParentEdge().inV();
+		return (QueryBuilder<Vertex>)this;
+	}
+
+	protected abstract QueryBuilder<Edge> has(String key, String value);
 }