ShowStatisticsAction.java

/*
 * Copyright 2006-2014 the original author or authors.
 *
 * 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 org.jrecruiter.web.actions.admin;

import java.awt.BasicStroke;
import java.awt.Color;
import java.util.Calendar;
import java.util.List;

import org.apache.struts2.convention.annotation.Result;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.AxisLocation;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.block.BlockBorder;
import org.jfree.chart.labels.ItemLabelAnchor;
import org.jfree.chart.labels.ItemLabelPosition;
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.Marker;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.ValueMarker;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.chart.title.LegendTitle;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.time.Day;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.xy.XYDataset;
import org.jfree.ui.RectangleAnchor;
import org.jfree.ui.RectangleEdge;
import org.jfree.ui.RectangleInsets;
import org.jfree.ui.TextAnchor;
import org.jrecruiter.common.CalendarUtils;
import org.jrecruiter.common.CollectionUtils;
import org.jrecruiter.model.Job;
import org.jrecruiter.model.statistics.JobCountPerDay;
import org.jrecruiter.web.actions.BaseAction;

/**
 * List all the jobs.
 *
 * @author Gunnar Hillert
 *
 */
@Result(name="success", location="index", type="redirectAction")
public class ShowStatisticsAction extends BaseAction {

	/** serialVersionUID. */
	private static final long serialVersionUID = 4467043520853890820L;

	private JFreeChart chart;

	private List<Job> jobs = CollectionUtils.getArrayList();

	Boolean displayAjax = Boolean.FALSE;

	/**
	 * Default view for this controller.
	 *
	 */
	public final String execute() {

		jobs = jobService.getUsersJobsForStatistics(super.getLoggedInUser().getUsername());

		if (displayAjax) {
			return "ajax";
		}

		return INPUT;
	}

	/**
	 *
	 */
	public final String chartJobsHits() throws Exception {

		String chartTitle = null;

		jobs = jobService.getUsersJobsForStatistics(super.getLoggedInUser().getUsername(), 10);
		chartTitle = "Job Statistics Top 10 - Hits";

			final DefaultCategoryDataset dataset = new DefaultCategoryDataset();

			for (Job job : jobs) {

				if (job.getStatistic() != null) {

						if (job.getStatistic().getCounter().longValue() >= 0) {
							dataset.addValue(job.getStatistic().getCounter(),
									job.getJobTitle() + "_" + job.getId(), "");
						}
				}
			}

			this.chart = createChart(dataset, chartTitle);

		return SUCCESS;
	}

	private static JFreeChart createChart(
			final CategoryDataset categorydataset, final String chartTitle) {
		final JFreeChart chart = ChartFactory.createBarChart(chartTitle,
				"Jobs", "Number of Hits", categorydataset,
				PlotOrientation.VERTICAL, true, true, false);

		final CategoryPlot categoryplot = (CategoryPlot) chart.getPlot();
		categoryplot.setNoDataMessage("NO DATA!");

		chart.setBackgroundPaint(new Color(245, 245, 255));
		chart.setBorderPaint(new Color(204, 204, 204));
		chart.setBorderStroke(new BasicStroke(1f));

		final LegendTitle legend = chart.getLegend();
		legend.setWidth(1000);
		legend.setPosition(RectangleEdge.BOTTOM);

		final BlockBorder border = new BlockBorder(new Color(204, 204, 204));
		legend.setBorder(border);

		final CategoryPlot categoryPlot = (CategoryPlot) chart.getPlot();
		categoryPlot.setBackgroundPaint(Color.WHITE);
		categoryPlot.setRangeGridlinePaint(new Color(204, 204, 204));
		categoryPlot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);
		final NumberAxis numberaxis = (NumberAxis) categoryPlot.getRangeAxis();

		numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
		final BarRenderer renderer = (BarRenderer) categoryPlot.getRenderer();
		renderer.setDrawBarOutline(true);

		final ItemLabelPosition itemlabelposition = new ItemLabelPosition(
				ItemLabelAnchor.CENTER, TextAnchor.CENTER);
		renderer.setPositiveItemLabelPosition(itemlabelposition);

		renderer
				.setItemLabelGenerator(new StandardCategoryItemLabelGenerator());

		renderer.setItemLabelsVisible(true);
		return chart;
	}

	public final String chartJobCount() throws Exception {

			final Calendar calendarToday = CalendarUtils.getCalendarWithoutTime();

			final Calendar calendar30    = CalendarUtils.getCalendarWithoutTime();
			calendar30.add(Calendar.MONTH, -36);

			final List<JobCountPerDay>jobCountPerDayList = jobService.getJobCountPerDayAndPeriod(calendar30.getTime(), calendarToday.getTime());

			final TimeSeries hitsPerDayData = new TimeSeries( "Hits", Day.class );
			final XYDataset hitsPerDayDataset = new TimeSeriesCollection( hitsPerDayData );
			this.chart = ChartFactory.createTimeSeriesChart("",
					super.getText("class.ShowStatisticsAcion.chart.job.count.caption"), "", hitsPerDayDataset, false, true, false);


			final XYPlot xyplot = (XYPlot)this.chart.getPlot();

			for(JobCountPerDay jobCountPerDay : jobCountPerDayList ) {

			  final Day day =  new Day(jobCountPerDay.getJobDate());

			  if (jobCountPerDay.getAutomaticallyCleaned()) {

				  final Marker originalEnd = new ValueMarker(day.getFirstMillisecond());
				  originalEnd.setPaint(new Color(0, 80, 138, 150));
				  float[] dashPattern = { 6, 2 };

				  originalEnd.setStroke(new BasicStroke(2, BasicStroke.CAP_BUTT,
						  BasicStroke.JOIN_MITER, 10,
						  dashPattern, 0));
				  originalEnd.setLabelAnchor(RectangleAnchor.TOP_LEFT);
				  originalEnd.setLabelTextAnchor(TextAnchor.TOP_RIGHT);
				  originalEnd.setLabel("C");
				  originalEnd.setAlpha(0.1F);
				  xyplot.addDomainMarker(originalEnd);
			  }

			  hitsPerDayData.add(day, jobCountPerDay.getTotalNumberOfJobs());
			}




			chart.setBackgroundPaint(new Color(255,255,255,0));


			xyplot.setDomainGridlinePaint(Color.LIGHT_GRAY);
			xyplot.setBackgroundPaint(new Color(255,255,255,0));

			xyplot.setRangeGridlinePaint(Color.LIGHT_GRAY);
			xyplot.setAxisOffset(new RectangleInsets(5D, 5D, 5D, 5D));
			xyplot.setDomainCrosshairVisible(true);
			xyplot.setRangeCrosshairVisible(true);

			org.jfree.chart.renderer.xy.XYItemRenderer xyitemrenderer = xyplot.getRenderer();
			if(xyitemrenderer instanceof XYLineAndShapeRenderer)
			{
				XYLineAndShapeRenderer xylineandshaperenderer = (XYLineAndShapeRenderer)xyitemrenderer;
				xylineandshaperenderer.setBaseShapesVisible(false);
				xyitemrenderer.setSeriesPaint(0, new Color(244, 66, 0));
			}

			DateAxis dateaxis = (DateAxis)xyplot.getDomainAxis();

			dateaxis.setAutoRange(true);
			dateaxis.setAutoTickUnitSelection(true);

			NumberAxis valueAxis = (NumberAxis)xyplot.getRangeAxis();
			valueAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());


		return SUCCESS;
	}

	public Boolean getDisplayAjax() {
		return displayAjax;
	}

	public void setDisplayAjax(Boolean displayAjax) {
		this.displayAjax = displayAjax;
	}

	public JFreeChart getChart() {
		return chart;
	}

	public void setChart(JFreeChart chart) {
		this.chart = chart;
	}

	public List<Job> getJobs() {
		return jobs;
	}

	public void setJobs(List<Job> jobs) {
		this.jobs = jobs;
	}

}