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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.net.URI;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
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.Response.Status;
import javax.ws.rs.core.UriBuilder;
import javax.ws.rs.core.UriInfo;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.javatuples.Pair;
import org.onap.aai.db.props.AAIProperties;
import org.onap.aai.dbmap.DBConnectionType;
import org.onap.aai.exceptions.AAIException;
import org.onap.aai.introspection.Introspector;
import org.onap.aai.introspection.Loader;
import org.onap.aai.introspection.MarshallerProperties;
import org.onap.aai.introspection.ModelType;
import org.onap.aai.introspection.Version;
import org.onap.aai.parsers.query.QueryParser;
import org.onap.aai.rest.db.DBRequest;
import org.onap.aai.rest.db.HttpEntry;
import org.onap.aai.restcore.HttpMethod;
import org.onap.aai.restcore.RESTAPI;
import org.onap.aai.serialization.db.DBSerializer;
import org.onap.aai.serialization.engines.QueryStyle;
import org.onap.aai.serialization.engines.TransactionalGraphEngine;
/**
* The Class VertexIdConsumer.
*/
@Path("{version: v[789]|v1[01234]}/resources")
public class VertexIdConsumer extends RESTAPI {
private ModelType introspectorFactoryType = ModelType.MOXY;
private QueryStyle queryStyle = QueryStyle.TRAVERSAL;
private final String ID_ENDPOINT = "/id/{vertexid: \\d+}";
/**
* Gets the by vertex id.
*
* @param content the content
* @param versionParam the version param
* @param vertexid the vertexid
* @param depthParam the depth param
* @param headers the headers
* @param info the info
* @param req the req
* @return the by vertex id
*/
@GET
@Path(ID_ENDPOINT)
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
public Response getByVertexId(String content, @PathParam("version")String versionParam, @PathParam("vertexid")long vertexid, @DefaultValue("all") @QueryParam("depth") String depthParam, @Context HttpHeaders headers, @Context UriInfo info, @Context HttpServletRequest req) {
String outputMediaType = getMediaType(headers.getAcceptableMediaTypes());
String sourceOfTruth = headers.getRequestHeaders().getFirst("X-FromAppId");
String transId = headers.getRequestHeaders().getFirst("X-TransactionId");
String realTime = headers.getRequestHeaders().getFirst("Real-Time");
Version version = Version.valueOf(versionParam);
Status status = Status.NOT_FOUND;
String result = "";
Response response = null;
TransactionalGraphEngine dbEngine = null;
try {
int depth = setDepth(depthParam);
DBConnectionType type = this.determineConnectionType(sourceOfTruth, realTime);
HttpEntry httpEntry = new HttpEntry(version, introspectorFactoryType, queryStyle, type);
dbEngine = httpEntry.getDbEngine();
Loader loader = httpEntry.getLoader();
DBSerializer serializer = new DBSerializer(version, dbEngine, introspectorFactoryType, sourceOfTruth);
//get type of the object represented by the given id
Vertex thisVertex = null;
Iterator<Vertex> itr = dbEngine.asAdmin().getTraversalSource().V(vertexid);
if (!itr.hasNext()) {
throw new AAIException("AAI_6114", "no node at that vertex id");
}
thisVertex = itr.next();
String objName = thisVertex.<String>property(AAIProperties.NODE_TYPE).orElse(null);
QueryParser query = dbEngine.getQueryBuilder(thisVertex).createQueryFromObjectName(objName);
Introspector obj = loader.introspectorFromName(query.getResultType());
URI uriObject = UriBuilder.fromPath(info.getPath()).build();
DBRequest request =
new DBRequest.Builder(HttpMethod.GET, uriObject, query, obj, headers, info, transId)
.customMarshaller(new MarshallerProperties.Builder(org.onap.aai.restcore.MediaType.getEnum(outputMediaType)).includeRoot(true).build()).build();
List<DBRequest> requests = new ArrayList<>();
requests.add(request);
Pair<Boolean, List<Pair<URI, Response>>> responsesTuple = httpEntry.process(requests, sourceOfTruth);
response = responsesTuple.getValue1().get(0).getValue1();
} catch (AAIException e){
response = consumerExceptionResponseGenerator(headers, info, HttpMethod.GET, e);
} catch (Exception e) {
AAIException ex = new AAIException("AAI_4000", e);
response = consumerExceptionResponseGenerator(headers, info, HttpMethod.GET, ex);
} finally { //to close the janusgraph transaction (I think)
if (dbEngine != null) {
dbEngine.rollback();
}
}
return response;
}
}
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