@BeforeClass
public static void startServer() throws Exception {
Thread.sleep(1000);
// LOG = LoggerFactory.getLogger(BaseTest.class);
// manager = DDFManager.get("spark");
/*
manager = DDFManager.get("jdbc", new JDBCDataSourceDescriptor(new
DataSourceURI("jdbc:mysql://localhost/testdb"), new
JDBCDataSourceDescriptor.JDBCDataSourceCredentials("pauser",
"papwd"), null));
DataSourceDescriptor ds = manager.getDataSourceDescriptor();
if (ds instanceof
JDBCDataSourceDescriptor) {
System.out.println("hello");
}
DDF ret = manager.sql2ddf("select * from testtable", "jdbc");*/
// Add 2 test ddfs.
manager = DDFManager.get("spark");
manager.setEngineName("spark");
Schema schema = new Schema("tablename1", "d d,d d");
DDF ddf =
manager.newDDF(manager, new Class<?>[] {DDFManager.class}, "spark", "adatao", "a", schema);
Schema schema2 = new Schema("tablename2", "d d,d d");
DDF ddf2 =
manager.newDDF(manager, new Class<?>[] {DDFManager.class}, "spark", "adatao", "b", schema2);
parser = new CCJSqlParserManager();
}
@Override
public DDF residuals() throws DDFException {
SparkDDF predictionDDF = (SparkDDF) this.getDDF();
JavaRDD<double[]> predictionRDD = predictionDDF.getJavaRDD(double[].class);
JavaRDD<double[]> result = predictionRDD.map(new MetricsMapperResiduals());
if (result == null) mLog.error(">> javaRDD result of MetricMapper residuals is null");
if (predictionDDF.getManager() == null) mLog.error(">> predictionDDF.getManager() is null");
if (result.rdd() == null) mLog.error(">> result.rdd() is null");
if (predictionDDF.getSchema() == null) mLog.error(">> predictionDDF.getSchema() is null");
if (predictionDDF.getName() == null) mLog.error(">> predictionDDF.getName() is null");
Schema schema = new Schema("residuals double");
DDFManager manager = this.getDDF().getManager();
DDF residualDDF =
manager.newDDF(
manager, result.rdd(), new Class<?>[] {RDD.class, double[].class}, null, schema);
if (residualDDF == null) mLog.error(">>>>>>>>>>>.residualDDF is null");
return residualDDF;
}