diff options
Diffstat (limited to 'aai-core/src/main/java/org/onap/aai/dbmap/InMemoryGraph.java')
-rw-r--r-- | aai-core/src/main/java/org/onap/aai/dbmap/InMemoryGraph.java | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/aai-core/src/main/java/org/onap/aai/dbmap/InMemoryGraph.java b/aai-core/src/main/java/org/onap/aai/dbmap/InMemoryGraph.java new file mode 100644 index 00000000..61b4e36e --- /dev/null +++ b/aai-core/src/main/java/org/onap/aai/dbmap/InMemoryGraph.java @@ -0,0 +1,106 @@ +/** + * ============LICENSE_START======================================================= + * org.onap.aai + * ================================================================================ + * Copyright © 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========================================================= + * + * ECOMP is a trademark and service mark of AT&T Intellectual Property. + */ +package org.onap.aai.dbmap; + +import java.io.FileInputStream; +import java.io.IOException; +import java.io.InputStream; + +import java.util.Properties; + +import org.apache.commons.lang.exception.ExceptionUtils; +import org.apache.tinkerpop.gremlin.structure.io.IoCore; +import org.onap.aai.dbgen.SchemaGenerator; +import org.onap.aai.logging.LogFormatTools; + +import com.thinkaurelius.titan.core.TitanFactory; +import com.thinkaurelius.titan.core.TitanGraph; +import com.thinkaurelius.titan.core.TitanTransaction; +import com.thinkaurelius.titan.core.schema.TitanManagement; + +import com.att.eelf.configuration.EELFLogger; +import com.att.eelf.configuration.EELFManager; + +public class InMemoryGraph { + + private static final EELFLogger LOGGER = EELFManager.getInstance().getLogger(InMemoryGraph.class); + private TitanGraph graph = null; + + + public InMemoryGraph(Builder builder) throws IOException { + /* + * Create a In-memory graph + */ + InputStream is = new FileInputStream(builder.propertyFile); + try { + graph = TitanFactory.open(builder.propertyFile); + + Properties graphProps = new Properties(); + graphProps.load(is); + TitanManagement graphMgt = graph.openManagement(); + if(builder.isSchemaEnabled){ + LOGGER.info("Schema Enabled"); + SchemaGenerator.loadSchemaIntoTitan(graph, graphMgt); + } + TitanTransaction transaction = graph.newTransaction(); + LOGGER.info("Loading snapshot"); + transaction.io(IoCore.graphson()).readGraph(builder.graphsonLocation); + transaction.commit(); + + } catch (Exception e) { + // TODO : Changesysout to logger + LOGGER.error( + "ERROR: Could not load datasnapshot to in memory graph. \n" + LogFormatTools.getStackTop(e)); + throw new IllegalStateException("Could not load datasnapshot to in memory graph"); + + } + finally{ + is.close(); + } + + } + + public static class Builder { + private String graphsonLocation = ""; + private String propertyFile = ""; + private boolean isSchemaEnabled = false; + + /* + * Builder constructor doesnt do anything + */ + public Builder() { + //Do nothing + } + + public InMemoryGraph build(String graphsonFile, String propertyFile, boolean isSchemaEnabled) throws IOException { + this.graphsonLocation = graphsonFile; + this.propertyFile = propertyFile; + this.isSchemaEnabled = isSchemaEnabled; + return new InMemoryGraph(this); + } + } + + public TitanGraph getGraph() { + return graph; + } + +} |