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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.dbgen;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.collect.Multimap;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.janusgraph.core.Cardinality;
import org.janusgraph.core.JanusGraph;
import org.janusgraph.core.Multiplicity;
import org.janusgraph.core.PropertyKey;
import org.janusgraph.core.schema.JanusGraphManagement;
import org.onap.aai.config.SpringContextAware;
import org.onap.aai.db.props.AAIProperties;
import org.onap.aai.edges.EdgeIngestor;
import org.onap.aai.edges.EdgeRule;
import org.onap.aai.edges.exceptions.EdgeRuleNotFoundException;
import org.onap.aai.introspection.*;
import org.onap.aai.logging.LogFormatTools;
import org.onap.aai.schema.enums.PropertyMetadata;
import org.onap.aai.setup.SchemaVersions;
import org.onap.aai.util.AAIConfig;
public class SchemaGenerator {
private static final Logger LOGGER = LoggerFactory.getLogger(SchemaGenerator.class);
/**
* Load schema into JanusGraph.
*
* @param graph
* the graph
* @param graphMgmt
* the graph mgmt
*/
public static void loadSchemaIntoJanusGraph(final JanusGraph graph, final JanusGraphManagement graphMgmt,
String backend) {
try {
AAIConfig.init();
} catch (Exception ex) {
LOGGER.error(" ERROR - Could not run AAIConfig.init(). " + LogFormatTools.getStackTop(ex));
// System.out.println(" ERROR - Could not run AAIConfig.init(). ");
System.exit(1);
}
// NOTE - JanusGraph 0.5.3 doesn't keep a list of legal node Labels.
// They are only used when a vertex is actually being created.
// JanusGraph 1.1 will keep track (we think).
// Use EdgeRules to make sure edgeLabels are defined in the db. NOTE:
// the multiplicty used here is
// always "MULTI". This is not the same as our internal "Many2Many",
// "One2One", "One2Many" or "Many2One"
// We use the same edge-label for edges between many different types of
// nodes and our internal
// multiplicty definitions depends on which two types of nodes are being
// connected.
Multimap<String, EdgeRule> edges = null;
Set<String> labels = new HashSet<>();
EdgeIngestor edgeIngestor = SpringContextAware.getBean(EdgeIngestor.class);
try {
edges = edgeIngestor.getAllCurrentRules();
} catch (EdgeRuleNotFoundException e) {
LOGGER.error("Unable to find all rules {}", LogFormatTools.getStackTop(e));
}
for (EdgeRule rule : edges.values()) {
labels.add(rule.getLabel());
}
for (String label : labels) {
if (graphMgmt.containsRelationType(label)) {
String dmsg = " EdgeLabel [" + label + "] already existed. ";
LOGGER.debug(dmsg);
} else {
String dmsg = "Making EdgeLabel: [" + label + "]";
LOGGER.debug(dmsg);
graphMgmt.makeEdgeLabel(label).multiplicity(Multiplicity.valueOf("MULTI")).make();
}
}
Loader loader = LoaderUtil.getLatestVersion();
Map<String, Introspector> objs = loader.getAllObjects();
Map<String, PropertyKey> seenProps = new HashMap<>();
for (Introspector obj : objs.values()) {
for (String propName : obj.getProperties()) {
String dbPropName = propName;
Optional<String> alias = obj.getPropertyMetadata(propName, PropertyMetadata.DB_ALIAS);
if (alias.isPresent()) {
dbPropName = alias.get();
}
if (graphMgmt.containsRelationType(dbPropName)) {
String dmsg = " PropertyKey [" + dbPropName + "] already existed in the DB. ";
LOGGER.debug(dmsg);
} else {
Class<?> type = obj.getClass(propName);
Cardinality cardinality = Cardinality.SINGLE;
boolean process = false;
if (obj.isListType(propName) && obj.isSimpleGenericType(propName)) {
cardinality = Cardinality.SET;
type = obj.getGenericTypeClass(propName);
process = true;
} else if (obj.isSimpleType(propName)) {
process = true;
}
if (process) {
String imsg = "Creating PropertyKey: [" + dbPropName + "], [" + type.getSimpleName() + "], ["
+ cardinality + "]";
LOGGER.info(imsg);
PropertyKey propK;
if (!seenProps.containsKey(dbPropName)) {
propK = graphMgmt.makePropertyKey(dbPropName).dataType(type).cardinality(cardinality)
.make();
seenProps.put(dbPropName, propK);
} else {
propK = seenProps.get(dbPropName);
}
if (graphMgmt.containsGraphIndex(dbPropName)) {
String dmsg = " Index [" + dbPropName + "] already existed in the DB. ";
LOGGER.debug(dmsg);
} else {
if (obj.getIndexedProperties().contains(propName)) {
if (obj.getUniqueProperties().contains(propName)) {
imsg = "Add Unique index for PropertyKey: [" + dbPropName + "]";
LOGGER.info(imsg);
graphMgmt.buildIndex(dbPropName, Vertex.class).addKey(propK).unique()
.buildCompositeIndex();
} else {
imsg = "Add index for PropertyKey: [" + dbPropName + "]";
LOGGER.info(imsg);
graphMgmt.buildIndex(dbPropName, Vertex.class).addKey(propK).buildCompositeIndex();
}
} else {
imsg = "No index added for PropertyKey: [" + dbPropName + "]";
LOGGER.info(imsg);
}
}
}
}
}
}
String imsg = "-- About to call graphMgmt commit";
LOGGER.info(imsg);
if (backend != null) {
LOGGER.info("Successfully loaded the schema to " + backend);
}
graphMgmt.commit();
}
}
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