Java tutorial
// Copyright 2009 Jose Antonio Jamilena Daza // // 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. package josejamilena.pfc.analizador; import java.awt.Color; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.util.Iterator; import java.util.Map; import java.util.TreeMap; import javax.swing.JDialog; import javax.swing.JPanel; import javax.swing.JScrollPane; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.data.category.DefaultCategoryDataset; public class GraficoPorScript extends JDialog { public GraficoPorScript(final String hostCliente, final String hostSgbd) throws ClassNotFoundException, SQLException { Map<String, String> res = new TreeMap<String, String>(); DefaultCategoryDataset dataset = new DefaultCategoryDataset(); Statement stmt = null; ResultSet rs = null; String consulta = "select tiempo, fecha from estadisticas where host_cliente=\'" + hostCliente + "\' and host_sgbd=\'" + hostSgbd + "\'"; stmt = App.conn.createStatement(); rs = stmt.executeQuery(consulta); while (rs.next()) { res.put(rs.getString(2), rs.getString(1)); } rs.close(); stmt.close(); Iterator it = res.entrySet().iterator(); while (it.hasNext()) { Map.Entry pairs = (Map.Entry) it.next(); dataset.setValue(Double.parseDouble(pairs.getValue().toString()), hostCliente, pairs.getKey().toString()); } JFreeChart chart = ChartFactory.createBarChart(hostCliente + " / " + hostSgbd, // chart title "Hora", // domain axis label "Duracin (milisegundos)", // range axis label dataset, // data PlotOrientation.HORIZONTAL, false, // include legend true, false); CategoryPlot plot = chart.getCategoryPlot(); chart.setBackgroundPaint(Color.white); plot.setOutlinePaint(Color.black); ChartPanel chartPanel = new ChartPanel(chart); JScrollPane scrollPane = new JScrollPane(); scrollPane.getViewport().add((new JPanel()).add(chartPanel)); setContentPane(scrollPane); } }