* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
+ * Modifications Copyright © 2018 IBM.
+ * ================================================================================
* 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
* limitations under the License.
* ============LICENSE_END=========================================================
*/
+
package org.onap.aai.dbmap;
-import java.io.FileInputStream;
import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.HashMap;
-import java.util.Map;
import java.util.Properties;
import org.apache.commons.configuration.PropertiesConfiguration;
-import org.apache.commons.lang.exception.ExceptionUtils;
+import org.apache.commons.lang3.exception.ExceptionUtils;
import org.apache.tinkerpop.gremlin.structure.Graph;
import org.apache.tinkerpop.gremlin.structure.io.IoCore;
+import org.janusgraph.core.JanusGraph;
+import org.janusgraph.core.JanusGraphFactory;
+import org.janusgraph.core.schema.JanusGraphManagement;
+import org.onap.aai.config.SpringContextAware;
import org.onap.aai.dbgen.SchemaGenerator;
+import org.onap.aai.dbgen.SchemaGenerator4Hist;
import org.onap.aai.exceptions.AAIException;
import org.onap.aai.util.AAIConstants;
-
-import com.att.eelf.configuration.EELFLogger;
-import com.att.eelf.configuration.EELFManager;
-import com.thinkaurelius.titan.core.TitanFactory;
-import com.thinkaurelius.titan.core.TitanGraph;
-import com.thinkaurelius.titan.core.schema.TitanManagement;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
/**
* Database Mapping class which acts as the middle man between the REST
- * interface objects and Titan DB objects. This class provides methods to commit
- * the objects received on the REST interface into the Titan graph database as
- * vertices and edges. Transactions are also managed here by using a TitanGraph
+ * interface objects and JanusGraph DB objects. This class provides methods to commit
+ * the objects received on the REST interface into the JanusGraph graph database as
+ * vertices and edges. Transactions are also managed here by using a JanusGraph
* object to load, commit/rollback and shutdown for each request. The data model
* rules such as keys/required properties are handled by calling DBMeth methods
* which are driven by a specification file in json.
- *
-
+ *
+ *
*/
public class AAIGraph {
- private static final EELFLogger logger = EELFManager.getInstance().getLogger(AAIGraph.class);
- protected static final String COMPONENT = "aaidbmap";
- protected Map<String, TitanGraph> graphs = new HashMap<>();
- private static final String REALTIME_DB = "realtime";
- private static final String CACHED_DB = "cached";
- private static boolean isInit = false;
-
-
-
- /**
- * Instantiates a new AAI graph.
- */
- private AAIGraph() {
- try {
- String serviceName = System.getProperty("aai.service.name", "NA");
- String rtConfig = System.getProperty("realtime.db.config");
- String cachedConfig = System.getProperty("cached.db.config");
- if (rtConfig == null) {
- rtConfig = AAIConstants.REALTIME_DB_CONFIG;
- }
- if (cachedConfig == null) {
- cachedConfig = AAIConstants.CACHED_DB_CONFIG;
- }
- this.loadGraph(REALTIME_DB, rtConfig, serviceName);
- this.loadGraph(CACHED_DB, cachedConfig, serviceName);
- } catch (Exception e) {
- throw new RuntimeException("Failed to instantiate graphs", e);
- }
- }
-
- private static class Helper {
- private static final AAIGraph INSTANCE = new AAIGraph();
- }
-
- /**
- * Gets the single instance of AAIGraph.
- *
- * @return single instance of AAIGraph
- */
- public static AAIGraph getInstance() {
- isInit = true;
- return Helper.INSTANCE;
- }
-
- public static boolean isInit() {
- return isInit;
- }
-
- private void loadGraph(String name, String configPath, String serviceName) throws Exception {
- // Graph being opened by TitanFactory is being placed in hashmap to be used later
- // These graphs shouldn't be closed until the application shutdown
- try {
- PropertiesConfiguration propertiesConfiguration = new AAIGraphConfig.Builder(configPath).forService(serviceName).withGraphType(name).buildConfiguration();
- TitanGraph graph = TitanFactory.open(propertiesConfiguration);
-
- Properties graphProps = new Properties();
- propertiesConfiguration.getKeys().forEachRemaining(k -> graphProps.setProperty(k, propertiesConfiguration.getString(k)));
-
- if ("inmemory".equals(graphProps.get("storage.backend"))) {
- // Load the propertyKeys, indexes and edge-Labels into the DB
- loadSchema(graph);
- loadSnapShotToInMemoryGraph(graph, graphProps);
- }
-
- if (graph == null) {
- throw new AAIException("AAI_5102");
- }
-
- graphs.put(name, graph);
- } catch (FileNotFoundException fnfe) {
- throw new AAIException("AAI_4001");
- } catch (IOException e) {
- throw new AAIException("AAI_4002");
- }
- }
-
- private void loadSnapShotToInMemoryGraph(TitanGraph graph, Properties graphProps) {
- if (logger.isDebugEnabled()) {
- logger.debug("Load Snapshot to InMemory Graph");
- }
- if (graphProps.containsKey("load.snapshot.file")) {
- String value = graphProps.getProperty("load.snapshot.file");
- if ("true".equals(value)) {
- try (Graph transaction = graph.newTransaction()) {
- String location = System.getProperty("snapshot.location");
- logAndPrint(logger, "Loading snapshot to inmemory graph.");
- transaction.io(IoCore.graphson()).readGraph(location);
- transaction.tx().commit();
- logAndPrint(logger, "Snapshot loaded to inmemory graph.");
- } catch (Exception e) {
- logAndPrint(logger,
- "ERROR: Could not load datasnapshot to in memory graph. \n"
- + ExceptionUtils.getFullStackTrace(e));
- System.exit(0);
- }
- }
- }
- }
-
- private void loadSchema(TitanGraph graph) {
- // Load the propertyKeys, indexes and edge-Labels into the DB
- TitanManagement graphMgt = graph.openManagement();
-
- System.out.println("-- loading schema into Titan");
- SchemaGenerator.loadSchemaIntoTitan( graph, graphMgt );
- }
-
- /**
- * Close all of the graph connections made in the instance.
- */
- public void graphShutdown() {
- graphs.values().stream().filter(TitanGraph::isOpen).forEach(TitanGraph::close);
- }
-
- /**
- * Gets the graph.
- *
- * @return the graph
- */
- public TitanGraph getGraph() {
- return graphs.get(REALTIME_DB);
- }
-
- public void graphShutdown(DBConnectionType connectionType) {
-
- graphs.get(this.getGraphName(connectionType)).close();
- }
-
- public TitanGraph getGraph(DBConnectionType connectionType) {
- return graphs.get(this.getGraphName(connectionType));
- }
-
- private String getGraphName(DBConnectionType connectionType) {
- String graphName = "";
- if (DBConnectionType.CACHED.equals(connectionType)) {
- graphName = this.CACHED_DB;
- } else if (DBConnectionType.REALTIME.equals(connectionType)) {
- graphName = this.REALTIME_DB;
- }
-
- return graphName;
- }
-
- private void logAndPrint(EELFLogger logger, String msg) {
- System.out.println(msg);
- logger.info(msg);
- }
+ private static final Logger logger = LoggerFactory.getLogger(AAIGraph.class);
+ private static final String IN_MEMORY = "inmemory";
+ protected JanusGraph graph;
+ private static boolean isInit = false;
+
+ /**
+ * Instantiates a new AAI graph.
+ */
+ private AAIGraph() {
+ try {
+ String serviceName = System.getProperty("aai.service.name", "NA");
+ String rtConfig = System.getProperty("realtime.db.config");
+ if (rtConfig == null) {
+ rtConfig = AAIConstants.REALTIME_DB_CONFIG;
+ }
+ this.loadGraph(rtConfig, serviceName);
+ } catch (Exception e) {
+ throw new RuntimeException("Failed to instantiate graphs", e);
+ }
+ }
+
+ private static class Helper {
+ private static final AAIGraph INSTANCE = new AAIGraph();
+
+ private Helper() {
+
+ }
+ }
+
+ /**
+ * Gets the single instance of AAIGraph.
+ *
+ * @return single instance of AAIGraph
+ */
+ public static AAIGraph getInstance() {
+ isInit = true;
+ return Helper.INSTANCE;
+ }
+
+ public static boolean isInit() {
+ return isInit;
+ }
+
+ private void loadGraph(String configPath, String serviceName) throws Exception {
+ // Graph being opened by JanusGraphFactory is being placed in hashmap to be used later
+ // These graphs shouldn't be closed until the application shutdown
+ try {
+ PropertiesConfiguration propertiesConfiguration = new AAIGraphConfig.Builder(configPath)
+ .forService(serviceName).withGraphType("realtime").buildConfiguration();
+ graph = JanusGraphFactory.open(propertiesConfiguration);
+
+ Properties graphProps = new Properties();
+ propertiesConfiguration.getKeys()
+ .forEachRemaining(k -> graphProps.setProperty(k, propertiesConfiguration.getString(k)));
+
+ if (IN_MEMORY.equals(graphProps.get("storage.backend"))) {
+ // Load the propertyKeys, indexes and edge-Labels into the DB
+ loadSchema(graph);
+ loadSnapShotToInMemoryGraph(graph, graphProps);
+ }
+
+ if (graph == null) {
+ throw new AAIException("AAI_5102");
+ }
+
+ } catch (FileNotFoundException e) {
+ throw new AAIException("AAI_4001", e);
+ }
+ }
+
+ private void loadSnapShotToInMemoryGraph(JanusGraph graph, Properties graphProps) {
+ if (logger.isDebugEnabled()) {
+ logger.debug("Load Snapshot to InMemory Graph");
+ }
+ if (graphProps.containsKey("load.snapshot.file")) {
+ String value = graphProps.getProperty("load.snapshot.file");
+ if ("true".equals(value)) {
+ try (Graph transaction = graph.newTransaction()) {
+ String location = System.getProperty("snapshot.location");
+ logger.info("Loading snapshot to inmemory graph.");
+ transaction.io(IoCore.graphson()).readGraph(location);
+ transaction.tx().commit();
+ logger.info("Snapshot loaded to inmemory graph.");
+ } catch (Exception e) {
+ logger.info(String.format("ERROR: Could not load datasnapshot to in memory graph. %n%s",
+ ExceptionUtils.getStackTrace(e)));
+ throw new RuntimeException(e);
+ }
+ }
+ }
+ }
+
+ private void loadSchema(JanusGraph graph) {
+ // Load the propertyKeys, indexes and edge-Labels into the DB
+ boolean dbNotEmpty = graph.traversal().V().limit(1).hasNext();
+ logger.info("-- loading schema into JanusGraph");
+ if ("true".equals(
+ SpringContextAware.getApplicationContext().getEnvironment().getProperty("history.enabled", "false"))) {
+ JanusGraphManagement graphMgt = graph.openManagement();
+ SchemaGenerator4Hist.loadSchemaIntoJanusGraph(graphMgt, IN_MEMORY);
+ } else {
+ SchemaGenerator.loadSchemaIntoJanusGraph(graph, IN_MEMORY, dbNotEmpty);
+ }
+ }
+
+ /**
+ * Close all of the graph connections made in the instance.
+ */
+ public void graphShutdown() {
+ if (graph != null && graph.isOpen()) {
+ graph.close();
+ }
+ }
+
+ /**
+ * Gets the graph.
+ *
+ * @return the graph
+ */
+ public JanusGraph getGraph() {
+ return graph;
+ }
+
}
Code Review / aai / aai-common.git / blobdiff