177 lines
6.8 KiB
Java
177 lines
6.8 KiB
Java
package org.gcube.dataanalysis.geo.connectors.table;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import org.gcube.contentmanagement.lexicalmatcher.utils.AnalysisLogger;
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import org.gcube.contentmanagement.lexicalmatcher.utils.DatabaseFactory;
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import org.gcube.dataanalysis.ecoengine.configuration.AlgorithmConfiguration;
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import org.gcube.dataanalysis.ecoengine.utils.DatabaseUtils;
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import org.gcube.dataanalysis.ecoengine.utils.Tuple;
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import org.gcube.dataanalysis.geo.utils.VectorOperations;
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import org.hibernate.SessionFactory;
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public class TableMatrixRepresentation {
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public static String xDimensionColumnParameter = "xColumn";
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public static String yDimensionColumnParameter = "yColumn";
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public static String zDimensionColumnParameter = "zColumn";
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public static String timeDimensionColumnParameter = "timeColumn";
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public static String valueDimensionColumnParameter = "valueColumn";
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public static String tableNameParameter = "geoReferencedTableName";
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public static String filterParameter = "filter";
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public HashMap<String, Integer> currentTimes = null;
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public HashMap<Double,List<Tuple<Double>>> currentcoordinates5d=null;
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public double maxZ = 0;
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public double minZ = 0;
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public void build5DTuples(AlgorithmConfiguration configuration, boolean cacheElements) throws Exception {
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currentTimes = new HashMap<String, Integer>();
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SessionFactory dbconnection = DatabaseUtils.initDBSession(configuration);
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try {
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String xField = configuration.getParam(xDimensionColumnParameter);
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String yField = configuration.getParam(yDimensionColumnParameter);
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String zField = configuration.getParam(zDimensionColumnParameter);
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String tField = configuration.getParam(timeDimensionColumnParameter);
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String valueField = configuration.getParam(valueDimensionColumnParameter);
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String tableName = configuration.getParam(tableNameParameter);
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if (tableName == null)
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throw new Exception("TableMatrixRepresentation: Error in retrieving elements from table, table name is null");
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String dbtuple = "";
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if (xField != null && xField.trim().length()>0)
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dbtuple += "\""+xField + "\" as x,";
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else
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dbtuple += "0 as x,";
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if (yField != null && yField.trim().length()>0)
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dbtuple += "\""+yField + "\" as y,";
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else
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dbtuple += "0 as y,";
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if (zField != null && zField.trim().length()>0)
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dbtuple += "\""+zField + "\" as z,";
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else
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dbtuple += "0 as z,";
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if (tField != null && tField.trim().length()>0)
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dbtuple += "\""+tField + "\" as time,";
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else
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dbtuple += "0 as time,";
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if (valueField != null && valueField.trim().length()>0)
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dbtuple += "\""+valueField+"\" as v";
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else
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dbtuple += "0 as v";
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List<Object> rows = null;
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if ((currentcoordinates5d == null) || !cacheElements){
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currentcoordinates5d = new HashMap<Double, List<Tuple<Double>>>();
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//find maxZ
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if (zField!=null && zField.trim().length()>0){
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String maxzq = "select max("+zField+") as max,min("+zField+") as min from "+tableName;
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Object [] maxzr = (Object [] )DatabaseFactory.executeSQLQuery(maxzq, dbconnection).get(0);
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maxZ = Double.parseDouble(""+maxzr[0]);
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minZ = Double.parseDouble(""+maxzr[1]);
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}
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String query = "select " + dbtuple + " from " + tableName;
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String filter=configuration.getParam(filterParameter);
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if (filter!=null && filter.trim().length()>0)
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query+=" where "+filter;
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query += " order by time";
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AnalysisLogger.getLogger().debug("TableMatrixRepresentation-> Query to execute: " + query);
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rows = DatabaseFactory.executeSQLQuery(query, dbconnection);
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AnalysisLogger.getLogger().debug("TableMatrixRepresentation-> Returned " + rows.size() + " rows");
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for (Object row : rows) {
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Object[] orow = (Object[]) row;
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Tuple<Double> t = build5DTuple(orow);
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double time = t.getElements().get(3);
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List<Tuple<Double>> coordinates5d = currentcoordinates5d.get(time);
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if (coordinates5d==null){
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coordinates5d=new ArrayList<Tuple<Double>>();
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currentcoordinates5d.put(time, coordinates5d);
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}
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//else
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//AnalysisLogger.getLogger().debug("TableMatrixRepresentation-> yet found time "+time+"->"+orow[3]);
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coordinates5d.add(t);
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}
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AnalysisLogger.getLogger().debug("TableMatrixRepresentation-> Association complete");
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AnalysisLogger.getLogger().debug("TableMatrixRepresentation-> coordinates set complete: "+currentcoordinates5d.size());
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}
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} catch (Exception e) {
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e.printStackTrace();
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AnalysisLogger.getLogger().debug("Error in getting elements from DB: " + e.getLocalizedMessage());
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throw e;
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} finally {
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if (dbconnection != null)
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dbconnection.close();
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}
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}
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private Tuple<Double> build5DTuple(Object[] row) {
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double x = Double.parseDouble("" + row[0]);
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double y = Double.parseDouble("" + row[1]);
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double z = Double.parseDouble("" + row[2]);
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double value = Double.parseDouble("" + row[4]);
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// transform time into a sequence
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String time = "" + row[3];
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Integer yetTime = currentTimes.get(time);
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if (yetTime == null) {
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int size = currentTimes.size();
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currentTimes.put(time, size);
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yetTime = size;
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}
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return new Tuple<Double>(x, y, z, (double)yetTime, value);
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}
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public static void main(String[] args) throws Exception {
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AlgorithmConfiguration config = new AlgorithmConfiguration();
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config.setConfigPath("./cfg/");
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config.setPersistencePath("./");
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config.setParam("DatabaseUserName", "utente");
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config.setParam("DatabasePassword", "d4science");
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config.setParam("DatabaseURL", "jdbc:postgresql://statistical-manager.d.d4science.research-infrastructures.eu/testdb");
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config.setParam("DatabaseDriver", "org.postgresql.Driver");
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// vessels
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config.setParam(tableNameParameter, "generic_id037d302d_2ba0_4e43_b6e4_1a797bb91728");
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// config.setParam(xDimensionColumnParameter, "x");
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// config.setParam(yDimensionColumnParameter, "y");
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// config.setParam(zDimensionColumnParameter,"");
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config.setParam(timeDimensionColumnParameter, "datetime");
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config.setParam(valueDimensionColumnParameter, "speed");
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config.setParam(filterParameter, "speed<2");
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AnalysisLogger.setLogger(config.getConfigPath() + AlgorithmConfiguration.defaultLoggerFile);
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TableMatrixRepresentation tmr = new TableMatrixRepresentation();
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tmr.build5DTuples(config,false);
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List<Tuple<Double>> tuples = tmr.currentcoordinates5d.get(0d);
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AnalysisLogger.getLogger().debug("TUPLES:" + tuples);
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List<Tuple<Double>> grid = VectorOperations.generateCoordinateTripletsInBoundingBox(-47.14, -46.00, 44.52, 45.55, 0, 0.5, 0.5);
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List<Double> values = VectorOperations.assignPointsValuesToGrid(grid, 0, tuples, 0.5);
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AnalysisLogger.getLogger().debug("VALUES:" + values);
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}
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}
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