1 files changed, 170 insertions, 0 deletions
diff --git a/aai-core/src/main/java/org/onap/aai/query/builder/HistoryGremlinTraversal.java b/aai-core/src/main/java/org/onap/aai/query/builder/HistoryGremlinTraversal.java
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+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2018 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=========================================================
+ */
+
+package org.onap.aai.query.builder;
+
+import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
+import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__;
+import org.apache.tinkerpop.gremlin.structure.Vertex;
+import org.onap.aai.db.props.AAIProperties;
+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;
+
+import javax.ws.rs.core.MultivaluedMap;
+import java.io.UnsupportedEncodingException;
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The Class GremlinTraversal.
+ */
+public class HistoryGremlinTraversal<E> extends GremlinTraversal<E> {
+
+    /**
+     * Instantiates a new gremlin traversal.
+     *
+     * @param loader the loader
+     */
+    public HistoryGremlinTraversal(Loader loader, GraphTraversalSource source) {
+        super(loader, source);
+    }
+
+    /**
+     * Instantiates a new gremlin traversal.
+     *
+     * @param loader the loader
+     * @param start the start
+     */
+    public HistoryGremlinTraversal(Loader loader, GraphTraversalSource source, Vertex start) {
+        super(loader, source, start);
+    }
+
+
+    protected HistoryGremlinTraversal(List<String> traversal, Loader loader, GraphTraversalSource source,
+                                      GremlinQueryBuilder<E> gtb) {
+        super(traversal, loader, source, gtb);
+    }
+
+    /**
+     * @{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 HistoryGremlinTraversal<>(loader, source, start);
+    }
+
+    /**
+     * @{inheritDoc}
+     */
+    @Override
+    public QueryBuilder<E> newInstance() {
+        return new HistoryGremlinTraversal<>(loader, source);
+    }
+
+    @Override
+    protected QueryBuilder<E> cloneQueryAtStep(int index) {
+
+        int idx = index;
+
+        if (idx == 0) {
+            idx = stepIndex;
+        }
+
+        List<String> newList = new ArrayList<>();
+        for (int i = 0; i < idx; i++) {
+            newList.add(this.list.get(i));
+        }
+
+        return new HistoryGremlinTraversal<>(newList, loader, source, this);
+    }
+
+    @Override
+    protected void vertexHas(String key, Object value) {
+        super.vertexHas(key, value);
+        touchHistoryProperties(key, value);
+    }
+
+    @Override
+    protected void vertexHasNot(String key) {
+        super.vertexHasNot(key);
+        touchHistoryProperties(key);
+
+    }
+
+    @Override
+    protected void vertexHas(String key) {
+        super.vertexHas(key);
+        touchHistoryProperties(key);
+    }
+
+    /*
+     * This is required for the subgraphstrategies to work
+     */
+    private void touchHistoryProperties(String key){
+        if(key != null && !key.isEmpty() && !key.equals(AAIProperties.NODE_TYPE)) {
+            list.add(".where(__.properties('" + key + "'))");
+        }
+
+    }
+
+    private void touchHistoryProperties(String key, Object value) {
+        if(key != null && !key.isEmpty() && !key.equals(AAIProperties.NODE_TYPE)) {
+            list.add(".where(__.properties('" + key + "').hasValue(" + value + "))");
+        }
+    }
+}