138 lines
4.4 KiB
Java
138 lines
4.4 KiB
Java
package org.gcube.dataanalysis.trendylyzeralgorithms;
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import java.awt.Image;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.sql.Statement;
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import java.util.HashMap;
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import java.util.LinkedHashMap;
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import java.util.Map;
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import org.gcube.contentmanagement.graphtools.data.conversions.ImageTools;
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import org.gcube.contentmanagement.graphtools.plotting.graphs.HistogramGraph;
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import org.gcube.contentmanagement.lexicalmatcher.utils.AnalysisLogger;
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import org.gcube.dataanalysis.ecoengine.datatypes.PrimitiveType;
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import org.gcube.dataanalysis.ecoengine.datatypes.StatisticalType;
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import org.gcube.dataanalysis.ecoengine.datatypes.enumtypes.PrimitiveTypes;
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import org.gcube.dataanalysis.ecoengine.interfaces.StandardLocalInfraAlgorithm;
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import org.jfree.chart.JFreeChart;
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import org.jfree.data.category.DefaultCategoryDataset;
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import org.postgresql.Driver;
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public class SimpleAlgorithm extends StandardLocalInfraAlgorithm{
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//case of db used
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static String urlParameterName = "DatabaseURL";
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static String userParameterName = "DatabaseUserName";
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static String passwordParameterName = "DatabasePassword";
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Class driverClass ;
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Driver driver ;
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Connection connection = null;
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LinkedHashMap<String, StatisticalType> map = new LinkedHashMap<String, StatisticalType>();
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private DefaultCategoryDataset defaultcategorydataset;
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private String species="Species";
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@Override
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public void init() throws Exception {
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AnalysisLogger.getLogger().debug("Initialization");
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String driverName = "org.postgresql.Driver";
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driverClass = Class.forName(driverName);
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driver = (Driver) driverClass.newInstance();
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}
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@Override
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public String getDescription() {
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// TODO Auto-generated method stub
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return null;
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}
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@Override
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protected void process() throws Exception {
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String userSelectedSp = getInputParameter(species);
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String databaseJdbc = getInputParameter(urlParameterName);
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String databaseUser = getInputParameter(userParameterName);
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String databasePwd = getInputParameter(passwordParameterName);
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connection = DriverManager.getConnection(databaseJdbc, databaseUser,
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databasePwd);
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Statement stmt = connection.createStatement();
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String query = "SELECT numberOfObservation FROM public.count_species_per_year WHERE tname ="
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+ species;
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ResultSet rs = stmt.executeQuery(query);
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int i =0;
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String s = "Species";
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while (rs.next()) {
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String count = rs.getString("numberOfObservation");
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int countOcc=Integer.parseInt(count);
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PrimitiveType val = new PrimitiveType(String.class.getName(), count, PrimitiveTypes.STRING, species, species);
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map.put(species, val);
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if(i<16)
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defaultcategorydataset.addValue(countOcc,s,species);
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else
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break;
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i++;
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}
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connection.close();
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}
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@Override
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protected void setInputParameters() {
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addStringInput(species, "Slected species", "Solea solea");
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addRemoteDatabaseInput("TrendyLyzerObis", urlParameterName,
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userParameterName, passwordParameterName, "driver", "dialect");
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}
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@Override
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public void shutdown() {
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AnalysisLogger.getLogger().debug("Shutdown");
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try {
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connection.close();
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} catch (SQLException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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@Override
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public StatisticalType getOutput() {
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PrimitiveType p = new PrimitiveType(Map.class.getName(), PrimitiveType.stringMap2StatisticalMap(outputParameters), PrimitiveTypes.MAP, "Discrepancy Analysis","");
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AnalysisLogger.getLogger().debug("MapsComparator: Producing Gaussian Distribution for the errors");
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//build image:
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HashMap<String, Image> producedImages = new HashMap<String, Image>();
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JFreeChart chart = HistogramGraph.createStaticChart(defaultcategorydataset);
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Image image = ImageTools.toImage(chart.createBufferedImage(680, 420));
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producedImages.put("Species Observations", image);
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PrimitiveType images = new PrimitiveType(HashMap.class.getName(), producedImages, PrimitiveTypes.IMAGES, "ErrorRepresentation", "Graphical representation of the error spread");
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//end build image
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AnalysisLogger.getLogger().debug("Bar Charts Species Occurrences Produced");
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//collect all the outputs
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map.put("Result", p);
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map.put("Images", images);
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//generate a primitive type for the collection
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PrimitiveType output = new PrimitiveType(HashMap.class.getName(), map, PrimitiveTypes.MAP, "ResultsMap", "Results Map");
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return output;
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}
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}
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