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/*-
* ============LICENSE_START=======================================================
* org.openecomp.aai
* ================================================================================
* Copyright (C) 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=========================================================
*/
package org.openecomp.aai.introspection.sideeffect;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.openecomp.aai.db.props.AAIProperties;
import org.openecomp.aai.exceptions.AAIException;
import org.openecomp.aai.introspection.Introspector;
import org.openecomp.aai.introspection.sideeffect.exceptions.AAIMultiplePropertiesException;
import org.openecomp.aai.parsers.query.QueryParser;
import org.openecomp.aai.parsers.uri.URIToObject;
import org.openecomp.aai.restcore.util.URITools;
import org.openecomp.aai.schema.enums.PropertyMetadata;
import org.openecomp.aai.serialization.db.DBSerializer;
import org.openecomp.aai.serialization.engines.TransactionalGraphEngine;
import javax.ws.rs.core.MultivaluedMap;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.List;
import java.util.Map.Entry;
import java.util.Optional;
public class DataLinkWriter extends SideEffect {
public DataLinkWriter(Introspector obj, Vertex self, TransactionalGraphEngine dbEngine, DBSerializer serializer) {
super(obj, self, dbEngine, serializer);
}
@Override
protected PropertyMetadata getPropertyMetadata() {
return PropertyMetadata.DATA_LINK;
}
@Override
protected void processURI(Optional<String> completeUri, Entry<String, String> entry)
throws URISyntaxException, UnsupportedEncodingException, AAIException {
if (completeUri.isPresent()) {
URI uri = new URI(completeUri.get());
MultivaluedMap<String, String> map = URITools.getQueryMap(uri);
QueryParser uriQuery = dbEngine.getQueryBuilder(this.latestLoader).createQueryFromURI(uri, map);
List<Vertex> results = uriQuery.getQueryBuilder().toList();
if (results.size() == 1) {
if (results.get(0).<Boolean>property(AAIProperties.LINKED).orElse(false) && obj.getValue(entry.getKey()) == null) {
//delete vertex because property was removed
serializer.delete(results.get(0), "", false);
} else {
//link vertex that already exists
this.addLinkedProperty(results.get(0));
}
} else {
if (results.isEmpty()) {
//locate previously linked vertex
List<Vertex> linkedVertices = uriQuery.getQueryBuilder().getContainerQuery().getVerticesByProperty(AAIProperties.LINKED, true).toList();
if (!linkedVertices.isEmpty()) {
if (linkedVertices.size() > 1) {
throw new AAIMultiplePropertiesException("multiple vertices found for single cardinality propery found when searching " + uri);
} else {
//found one, remove the linked property because it didn't match the uri
linkedVertices.get(0).property(AAIProperties.LINKED).remove();
}
}
if (obj.getValue(entry.getKey()) != null) {
//add new vertex to database if we have values
URIToObject parser = new URIToObject(this.latestLoader, uri);
Introspector resultObj = parser.getEntity();
Vertex newV = serializer.createNewVertex(resultObj);
serializer.serializeToDb(resultObj, newV, uriQuery, completeUri.get(), this.latestLoader.getVersion().toString());
this.addLinkedProperty(newV);
}
} else if (results.size() > 1) {
throw new AAIMultiplePropertiesException("multiple values of " + entry.getKey() + " found when searching " + uri);
}
}
} else {
//skip processing because no required properties were specified
}
}
@Override
protected boolean replaceWithWildcard() {
return true;
}
private void addLinkedProperty(Vertex v) {
v.property(AAIProperties.LINKED, true);
}
}
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