/** {@inheritDoc} */ @Override public Tuple2<LongWritable, Mutation> map(PED persistentEdgeData) throws Exception { LongWritable key = new LongWritable(persistentEdgeData.getId()); Put put = new Put(edgeDataHandler.getRowKey(persistentEdgeData.getId())); put = edgeDataHandler.writeEdgeData(put, persistentEdgeData); reuseTuple.f0 = key; reuseTuple.f1 = put; return reuseTuple; }
/** * Creates the tables used by the graph store. * * @param config Hadoop configuration * @param vertexDataHandler vertex storage handler * @param edgeDataHandler edge storage handler * @param graphDataHandler graph storage handler * @param vertexDataTableName vertex data table name * @param edgeTableName edge data table name * @param graphDataTableName graph data table name * @throws IOException */ private static void createTablesIfNotExists( final Configuration config, final VertexDataHandler vertexDataHandler, final EdgeDataHandler edgeDataHandler, final GraphDataHandler graphDataHandler, final String vertexDataTableName, final String edgeTableName, final String graphDataTableName) throws IOException { HTableDescriptor vertexDataTableDescriptor = new HTableDescriptor(TableName.valueOf(vertexDataTableName)); HTableDescriptor edgeDataTableDescriptor = new HTableDescriptor(TableName.valueOf(edgeTableName)); HTableDescriptor graphDataTableDescriptor = new HTableDescriptor(TableName.valueOf(graphDataTableName)); HBaseAdmin admin = new HBaseAdmin(config); if (!admin.tableExists(vertexDataTableDescriptor.getName())) { vertexDataHandler.createTable(admin, vertexDataTableDescriptor); } if (!admin.tableExists(edgeDataTableDescriptor.getName())) { edgeDataHandler.createTable(admin, edgeDataTableDescriptor); } if (!admin.tableExists(graphDataTableDescriptor.getName())) { graphDataHandler.createTable(admin, graphDataTableDescriptor); } admin.close(); }