1 files changed, 151 insertions, 0 deletions
diff --git a/aai-core/src/main/java/org/onap/aai/query/builder/TraversalQuery.java b/aai-core/src/main/java/org/onap/aai/query/builder/TraversalQuery.java
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+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.aai.query.builder;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URI;
+import java.util.List;
+
+import javax.ws.rs.core.MultivaluedMap;
+
+import org.apache.tinkerpop.gremlin.process.traversal.Step;
+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.Vertex;
+
+import org.onap.aai.exceptions.AAIException;
+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.TraversalStrategy;
+
+/**
+ * The Class TraversalQuery.
+ */
+public class TraversalQuery<E> extends GraphTraversalBuilder<E> {
+
+	/**
+	 * Instantiates a new traversal query.
+	 *
+	 * @param loader the loader
+	 */
+	public TraversalQuery(Loader loader, GraphTraversalSource source) {
+		super(loader, source);
+		this.factory = new TraversalStrategy(this.loader, this);
+	}
+	
+	/**
+	 * Instantiates a new traversal query.
+	 *
+	 * @param loader the loader
+	 * @param start the start
+	 */
+	public TraversalQuery(Loader loader, GraphTraversalSource source, Vertex start) {
+		super(loader, source, start);
+		this.factory = new TraversalStrategy(this.loader, this);
+	}
+	
+	protected TraversalQuery(GraphTraversal<Vertex, E> traversal, Loader loader, GraphTraversalSource source, GraphTraversalBuilder<E> gtb) {
+		super(loader, source);
+		this.traversal = traversal;
+		this.stepIndex = gtb.getStepIndex();
+		this.parentStepIndex = gtb.getParentStepIndex();
+		this.containerStepIndex = gtb.getContainerStepIndex();
+		this.factory = new TraversalStrategy(this.loader, this);
+		this.start = gtb.getStart();
+	}
+	
+	/**
+	 * @{inheritDoc}
+	 */
+	@Override
+	public QueryParser createQueryFromURI(URI uri) throws UnsupportedEncodingException, AAIException {
+		return factory.buildURIParser(uri);
+	}
+
+	/**
+	 * @{inheritDoc}
+	 */
+	@Override
+	public QueryParser createQueryFromRelationship(Introspector relationship) throws UnsupportedEncodingException, AAIException {
+		return factory.buildRelationshipParser(relationship);
+	}
+
+	/**
+	 * @{inheritDoc}
+	 */
+	@Override
+	public QueryParser createQueryFromURI(URI uri, MultivaluedMap<String, String> queryParams)
+			throws UnsupportedEncodingException, AAIException {
+		return factory.buildURIParser(uri, queryParams);
+	}
+	
+	/**
+	 * @{inheritDoc}
+	 */
+	@Override
+	public QueryParser createQueryFromObjectName(String objName) {
+		return factory.buildObjectNameParser(objName);
+	}
+
+	/**
+	 * @{inheritDoc}
+	 */
+	@Override
+	public QueryBuilder<E> newInstance(Vertex start) {
+		return new TraversalQuery<>(loader, source, start);
+	}
+	
+	/**
+	 * @{inheritDoc}
+	 */
+	@Override
+	public QueryBuilder<E> newInstance() {
+		return new TraversalQuery<>(loader, source);
+	}
+	
+	@Override
+	protected QueryBuilder<E> cloneQueryAtStep(int index) {
+		if (index == 0) {
+			index = stepIndex;
+		}
+		GraphTraversal<Vertex, E> clone = this.traversal.asAdmin().clone();
+		GraphTraversal.Admin<Vertex, E> cloneAdmin = clone.asAdmin();
+		List<Step> steps = cloneAdmin.getSteps();
+
+		for (int i = steps.size()-1; i >= index; i--) {
+			cloneAdmin.removeStep(i);
+		}
+		return new TraversalQuery<>(cloneAdmin, loader, source, this);
+	}
+	
+	@Override
+	protected QueryBuilder<E> removeQueryStepsBetween(int start, int end) {
+		GraphTraversal<Vertex, E> clone = this.traversal.asAdmin().clone();
+		GraphTraversal.Admin<Vertex, E> cloneAdmin = clone.asAdmin();
+
+		for (int i = end-2; i >= start; i--) {
+			cloneAdmin.removeStep(i);
+		}
+		return new TraversalQuery<>(cloneAdmin, loader, source, this);
+	}
+}