aai-core/src/main/java/org/onap/aai/dbgen/SchemaGenerator.java

   1 /**
   2  * ============LICENSE_START=======================================================
   3  * org.onap.aai
   4  * ================================================================================
   5  * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *    http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20 package org.onap.aai.dbgen;
  21
  22 import java.util.HashMap;
  23 import java.util.HashSet;
  24 import java.util.Map;
  25 import java.util.Optional;
  26 import java.util.Set;
  27
  28 import org.apache.tinkerpop.gremlin.structure.Vertex;
  29 import org.onap.aai.config.SpringContextAware;
  30 import org.onap.aai.db.props.AAIProperties;
  31 import org.onap.aai.edges.EdgeIngestor;
  32 import org.onap.aai.edges.exceptions.EdgeRuleNotFoundException;
  33 import org.onap.aai.introspection.Introspector;
  34 import org.onap.aai.introspection.Loader;
  35 import org.onap.aai.introspection.LoaderFactory;
  36 import org.onap.aai.introspection.ModelType;
  37 import org.onap.aai.logging.LogFormatTools;
  38 import org.onap.aai.schema.enums.PropertyMetadata;
  39 import org.onap.aai.edges.EdgeRule;
  40 import org.onap.aai.setup.SchemaVersions;
  41 import org.onap.aai.util.AAIConfig;
  42
  43 import com.att.eelf.configuration.EELFLogger;
  44 import com.att.eelf.configuration.EELFManager;
  45 import com.google.common.collect.Multimap;
  46 import org.janusgraph.core.Cardinality;
  47 import org.janusgraph.core.Multiplicity;
  48 import org.janusgraph.core.PropertyKey;
  49 import org.janusgraph.core.JanusGraph;
  50 import org.janusgraph.core.schema.JanusGraphManagement;
  51
  52 public class SchemaGenerator {
  53
  54         private static final EELFLogger LOGGER = EELFManager.getInstance().getLogger(SchemaGenerator.class);
  55
  56         /**
  57          * Load schema into JanusGraph.
  58          *
  59          * @param graph
  60          *            the graph
  61          * @param graphMgmt
  62          *            the graph mgmt
  63          */
  64         public static void loadSchemaIntoJanusGraph(final JanusGraph graph, final JanusGraphManagement graphMgmt,
  65                         String backend) {
  66
  67                 try {
  68                         AAIConfig.init();
  69                 } catch (Exception ex) {
  70                         LOGGER.error(" ERROR - Could not run AAIConfig.init(). " + LogFormatTools.getStackTop(ex));
  71                         //System.out.println(" ERROR - Could not run AAIConfig.init(). ");
  72                         System.exit(1);
  73                 }
  74
  75                 // NOTE - JanusGraph 0.5.3 doesn't keep a list of legal node Labels.
  76                 // They are only used when a vertex is actually being created.
  77                 // JanusGraph 1.1 will keep track (we think).
  78
  79                 // Use EdgeRules to make sure edgeLabels are defined in the db. NOTE:
  80                 // the multiplicty used here is
  81                 // always "MULTI". This is not the same as our internal "Many2Many",
  82                 // "One2One", "One2Many" or "Many2One"
  83                 // We use the same edge-label for edges between many different types of
  84                 // nodes and our internal
  85                 // multiplicty definitions depends on which two types of nodes are being
  86                 // connected.
  87
  88                 Multimap<String, EdgeRule> edges = null;
  89                 Set<String> labels = new HashSet<>();
  90
  91                 EdgeIngestor edgeIngestor = SpringContextAware.getBean(EdgeIngestor.class);
  92
  93                 try {
  94                         edges = edgeIngestor.getAllCurrentRules();
  95                 } catch (EdgeRuleNotFoundException e) {
  96                         LOGGER.error("Unable to find all rules {}", LogFormatTools.getStackTop(e));
  97                 }
  98
  99                 for (EdgeRule rule : edges.values()) {
 100                         labels.add(rule.getLabel());
 101                 }
 102
 103                 for (String label : labels) {
 104                         if (graphMgmt.containsRelationType(label)) {
 105                                 String dmsg = " EdgeLabel  [" + label + "] already existed. ";
 106                                 LOGGER.debug(dmsg);
 107                         } else {
 108                                 String dmsg = "Making EdgeLabel: [" + label + "]";
 109                                 LOGGER.debug(dmsg);
 110                                 graphMgmt.makeEdgeLabel(label).multiplicity(Multiplicity.valueOf("MULTI")).make();
 111                         }
 112                 }
 113
 114                 // ApplicationContext ctx = SpringContextAware.getApplicationContext();
 115                 // Loader loader =
 116                 // ctx.getBean(LoaderFactory.class).createLoaderForVersion(ModelType.MOXY,
 117                 // AAIProperties.LATEST);
 118                 LoaderFactory loaderFactory   = SpringContextAware.getBean(LoaderFactory.class);
 119                 SchemaVersions schemaVersions = SpringContextAware.getBean(SchemaVersions.class);
 120
 121                 Loader loader = loaderFactory.createLoaderForVersion(ModelType.MOXY, schemaVersions.getDefaultVersion());
 122                 // Loader loader = LoaderFactory.createLoaderForVersion(ModelType.MOXY,
 123                 // AAIProperties.LATEST);
 124                 Map<String, Introspector> objs = loader.getAllObjects();
 125                 Map<String, PropertyKey> seenProps = new HashMap<>();
 126
 127                 for (Introspector obj : objs.values()) {
 128                         for (String propName : obj.getProperties()) {
 129                                 String dbPropName = propName;
 130                                 Optional<String> alias = obj.getPropertyMetadata(propName, PropertyMetadata.DB_ALIAS);
 131                                 if (alias.isPresent()) {
 132                                         dbPropName = alias.get();
 133                                 }
 134                                 if (graphMgmt.containsRelationType(dbPropName)) {
 135                                         String dmsg = " PropertyKey  [" + dbPropName + "] already existed in the DB. ";
 136                                         LOGGER.debug(dmsg);
 137                                 } else {
 138                                         Class<?> type = obj.getClass(propName);
 139                                         Cardinality cardinality = Cardinality.SINGLE;
 140                                         boolean process = false;
 141                                         if (obj.isListType(propName) && obj.isSimpleGenericType(propName)) {
 142                                                 cardinality = Cardinality.SET;
 143                                                 type = obj.getGenericTypeClass(propName);
 144                                                 process = true;
 145                                         } else if (obj.isSimpleType(propName)) {
 146                                                 process = true;
 147                                         }
 148
 149                                         if (process) {
 150
 151                                                 String imsg = "Creating PropertyKey: [" + dbPropName + "], [" + type.getSimpleName() + "], ["
 152                                                                 + cardinality + "]";
 153                                                 LOGGER.info(imsg);
 154                                                 PropertyKey propK;
 155                                                 if (!seenProps.containsKey(dbPropName)) {
 156                                                         propK = graphMgmt.makePropertyKey(dbPropName).dataType(type).cardinality(cardinality)
 157                                                                         .make();
 158                                                         seenProps.put(dbPropName, propK);
 159                                                 } else {
 160                                                         propK = seenProps.get(dbPropName);
 161                                                 }
 162                                                 if (graphMgmt.containsGraphIndex(dbPropName)) {
 163                                                         String dmsg = " Index  [" + dbPropName + "] already existed in the DB. ";
 164                                                         LOGGER.debug(dmsg);
 165                                                 } else {
 166                                                         if (obj.getIndexedProperties().contains(dbPropName)) {
 167                                                                 if (obj.getUniqueProperties().contains(dbPropName)) {
 168                                                                         imsg = "Add Unique index for PropertyKey: [" + dbPropName + "]";
 169                                                                         LOGGER.info(imsg);
 170                                                                         graphMgmt.buildIndex(dbPropName, Vertex.class).addKey(propK).unique()
 171                                                                                         .buildCompositeIndex();
 172                                                                 } else {
 173                                                                         imsg = "Add index for PropertyKey: [" + dbPropName + "]";
 174                                                                         LOGGER.info(imsg);
 175                                                                         graphMgmt.buildIndex(dbPropName, Vertex.class).addKey(propK).buildCompositeIndex();
 176                                                                 }
 177                                                         } else {
 178                                                                 imsg = "No index added for PropertyKey: [" + dbPropName + "]";
 179                                                                 LOGGER.info(imsg);
 180                                                         }
 181                                                 }
 182                                         }
 183                                 }
 184                         }
 185                 }
 186
 187                 String imsg = "-- About to call graphMgmt commit";
 188                 LOGGER.info(imsg);
 189                 if(backend != null){
 190                         LOGGER.info("Successfully loaded the schema to " + backend);
 191                 }
 192
 193                 graphMgmt.commit();
 194         }
 195
 196 }