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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.rest;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.stream.Collectors;
import javax.ws.rs.Consumes;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
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.Graph;
import org.apache.tinkerpop.gremlin.structure.T;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerGraph;
import org.onap.aai.config.SpringContextAware;
import org.onap.aai.exceptions.AAIException;
import org.onap.aai.introspection.Loader;
import org.onap.aai.introspection.LoaderFactory;
import org.onap.aai.introspection.ModelType;
import org.onap.aai.rest.db.HttpEntry;
import org.onap.aai.rest.search.CustomQueryTestDTO;
import org.onap.aai.restcore.RESTAPI;
import org.onap.aai.restcore.search.GremlinGroovyShell;
import org.onap.aai.restcore.search.GroovyQueryBuilder;
import org.onap.aai.serialization.db.EdgeSerializer;
import org.onap.aai.serialization.engines.TransactionalGraphEngine;
import org.onap.aai.setup.SchemaVersion;
import org.onap.aai.setup.SchemaVersions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.RequestBody;
import com.beust.jcommander.internal.Lists;
import com.beust.jcommander.internal.Maps;
@Path("/cq2gremlintest")
public class CQ2GremlinTest extends RESTAPI {
private static final Logger LOGGER = LoggerFactory.getLogger(CQ2GremlinTest.class);
private HttpEntry traversalUriHttpEntry;
@Autowired
protected LoaderFactory loaderFactory;
@Autowired
protected EdgeSerializer rules;
protected Loader loader;
protected GraphTraversalSource gts;
@Autowired
public CQ2GremlinTest(HttpEntry traversalUriHttpEntry,
@Value("${schema.uri.base.path}") String basePath) {
this.traversalUriHttpEntry = traversalUriHttpEntry;
}
@PUT
@Path("")
@Consumes({MediaType.APPLICATION_JSON})
@Produces({MediaType.APPLICATION_JSON})
public Response getC2Qgremlin(@RequestBody CustomQueryTestDTO content,
@Context HttpHeaders headers, @Context UriInfo info) throws AAIException {
if (content == null) {
return Response.status(HttpStatus.BAD_REQUEST.value())
.entity("At least one Json payload should be passed").build();
}
String sourceOfTruth = headers.getRequestHeaders().getFirst("X-FromAppId");
String realTime = headers.getRequestHeaders().getFirst("Real-Time");
SchemaVersions schemaVersions = SpringContextAware.getBean(SchemaVersions.class);
traversalUriHttpEntry.setHttpEntryProperties(schemaVersions.getDefaultVersion());
traversalUriHttpEntry.setPaginationParameters("-1", "-1");
return processC2UnitTest(content);
}
private Response processC2UnitTest(CustomQueryTestDTO content) {
TransactionalGraphEngine dbEngine = traversalUriHttpEntry.getDbEngine();
Graph graph = TinkerGraph.open();
gts = graph.traversal();
List<Vertex> expectedVertices = createGraph(content, graph);
GremlinGroovyShell shell = new GremlinGroovyShell();
loader = loaderFactory.createLoaderForVersion(ModelType.MOXY, new SchemaVersion("v19"));
LinkedHashMap<String, Object> params = new LinkedHashMap<>();
// Adding parameters
content.getQueryRequiredProperties().forEach(params::put);
content.getQueryOptionalProperties().forEach(params::put);
String query =
new GroovyQueryBuilder().executeTraversal(dbEngine, content.getStoredQuery(), params);
query = "g" + query;
GraphTraversal<Vertex, Vertex> g = graph.traversal().V();
addStartNode(g, content);
params.put("g", g);
// Assertion
GraphTraversal<Vertex, Vertex> result =
(GraphTraversal<Vertex, Vertex>) shell.executeTraversal(query, params);
List<Vertex> vertices = result.toList();
LOGGER.info("Expected result set of vertexes [{}]", convert(expectedVertices));
LOGGER.info("Actual Result set of vertexes [{}]", convert(vertices));
List<Vertex> nonDuplicateExpectedResult = new ArrayList<>(new HashSet<>(expectedVertices));
vertices = new ArrayList<>(new HashSet<>(vertices));
nonDuplicateExpectedResult.sort(Comparator.comparing(vertex -> vertex.id().toString()));
vertices.sort(Comparator.comparing(vertex -> vertex.id().toString()));
// Use this instead of the assertTrue as this provides more useful
// debugging information such as this when expected and actual differ:
// java.lang.AssertionError: Expected all the vertices to be found
// Expected :[v[2], v[3], v[4], v[5], v[6], v[7], v[8], v[9], v[10], v[11], v[12]]
// Actual :[v[1], v[2], v[3], v[4], v[5], v[6], v[7], v[8], v[9], v[10], v[11], v[12]]
if (nonDuplicateExpectedResult.equals(vertices)) {
return Response.ok("Sucessfully executed Junit").build();
}
return Response.status(400).build();
}
private List<Vertex> createGraph(CustomQueryTestDTO content, Graph graph) {
Map<String, Vertex> verticesMap = Maps.newLinkedHashMap();
// Creating all the Vertices
content.getVerticesDtos().forEach(vertex -> {
StringBuilder vertexIdentifier = new StringBuilder();
List<String> keyValues = Lists.newArrayList();
keyValues.add(T.id.toString());
keyValues.add(String.format("%02d", verticesMap.size() * 10));
AtomicInteger index = new AtomicInteger(0);
vertex.forEach((k, v) -> {
if (index.get() == 1)
vertexIdentifier.append(k);
keyValues.add(k);
keyValues.add(v);
index.incrementAndGet();
});
Vertex graphVertex = graph.addVertex(keyValues.toArray());
verticesMap.put(vertexIdentifier.toString(), graphVertex);
});
GraphTraversalSource g = graph.traversal();
// Creating all the Edges
content.getEdgesDtos().forEach(edge -> {
String fromId = edge.get("from-id");
String toId = edge.get("to-id");
boolean treeEdgeIdentifier = !"NONE".equalsIgnoreCase(edge.get("contains-other-v"));
Vertex fromVertex = verticesMap.get(fromId);
Vertex toVertex = verticesMap.get(toId);
try {
if (treeEdgeIdentifier) {
rules.addTreeEdge(g, fromVertex, toVertex);
} else {
rules.addEdge(g, fromVertex, toVertex);
}
} catch (AAIException ex) {
LOGGER.warn(ex.toString(), ex);
}
});
List<Vertex> expectedVertices = Lists.newArrayList();
content.getExpectedResultsDtos().getIds()
.forEach(vertexId -> expectedVertices.add(verticesMap.get(vertexId)));
return expectedVertices;
}
protected void addStartNode(GraphTraversal<Vertex, Vertex> g, CustomQueryTestDTO content) {
Optional<LinkedHashMap<String, String>> startNodeVertex = content.getVerticesDtos().stream()
.filter(map -> map.containsKey("start-node")).findFirst();
if (!startNodeVertex.isPresent()) {
throw new IllegalArgumentException("start-node was not specified");
}
startNodeVertex.get().forEach((k, v) -> {
g.has(k, v);
});
}
protected String convert(List<Vertex> vertices) {
return vertices.stream().map(vertex -> vertex.property("aai-node-type").value().toString())
.collect(Collectors.joining(","));
}
}
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