Chart.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2015 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.charts;
 
import java.util.ArrayList;
import org.turro.string.Strings;
import org.turro.elephant.context.IConstructor;
import org.turro.marker.ElephantMarker;
 
public class Chart {
 
  protected IConstructor constructor;
  protected ArrayList<Series> series;
 
  public Chart(IConstructor constructor) {
    this.constructor = constructor;
    this.series = new ArrayList<>();
  }
 
  public ArrayList<Series> getSeries() {
    return series;
  }
 
  public Series addSeries(String name) {
    Series s = new Series(name);
    if(series.add(s)) {
      return s;
    }
    return null;
  }
  
  public String getPieData() {
    StringBuilder sb = new StringBuilder();
    for(Series s : series) {
      if(sb.length() > 0) {
        sb.append(",");
      }
      sb.append("[");
      boolean first = true;
      for(Data d : s.getData()) {
        if(first) { first = false; } else { sb.append(","); }
        sb.append("{name:\"")
                .append(d.key)
                .append("\",y:")
                .append(d.getValue(0.0));
        if(!Strings.isBlank(d.getLink())) {
          sb.append(",events:{click:function(){location.href=\"")
                  .append(d.getLink())
                  .append("\"}}");
        }
        sb.append("}");
      }
      sb.append("]");
    }
    return sb.toString();
  }
  
  public String getLineData() {
    StringBuilder sb = new StringBuilder();
    for(Series s : series) {
      if(sb.length() > 0) {
        sb.append(",");
      }
      sb.append("[");
      boolean first = true;
      for(Data d : s.getData()) {
        if(first) { first = false; } else { sb.append(","); }
        sb.append("{name:\"")
                .append(d.key)
                .append("\",y:")
                .append(d.getValue(0.0));
        if(!Strings.isBlank(d.getLink())) {
          sb.append(",events:{click:function(){location.href=\"")
                  .append(d.getLink())
                  .append("\"}}");
        }
        sb.append("}");
      }
      sb.append("]");
    }
    return sb.toString();
  }
  
  public String parsePie(String identifier) {
    return parsePie(identifier, "");
  }
  
  public String parseLine(String identifier) {
    return parseLine(identifier, "");
  }
  
  public String parsePie(String identifier, String title) {
    if(series.isEmpty()) loadData();
    ElephantMarker marker = new ElephantMarker(constructor);
    marker.put("identifier", identifier);
    marker.put("title", title);
    marker.put("data", getPieData());
    return marker.parse("charts", "pie");
  }
  
  public String parseLine(String identifier, String title) {
    if(series.isEmpty()) loadData();
    ElephantMarker marker = new ElephantMarker(constructor);
    marker.put("identifier", identifier);
    marker.put("title", title);
    marker.put("data", getLineData());
    return marker.parse("charts", "line");
  }
  
  protected void loadData() {}
  
}