/*
* Copyright 2009-2014 PrimeTek.
*
* 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.primefaces.component.chart;
import java.util.*;
import javax.faces.convert.Converter;
import org.primefaces.model.chart.CartesianChartModel;
import org.primefaces.model.chart.ChartSeries;
public class CartesianChart extends UIChart {
/**
* Finds the categories using first series
*
* @return List of categories
*/
public List<String> getCategories() {
CartesianChartModel model = (CartesianChartModel) this.getValue();
List<ChartSeries> series = model.getSeries();
List<String> categories = new ArrayList<String>();
Converter converter = this.getConverter();
if(series.size() > 0) {
Map<Object,Number> firstSeriesData = series.get(0).getData();
for(Iterator<Object> it = firstSeriesData.keySet().iterator(); it.hasNext();) {
Object key = it.next();
if(key instanceof String) {
categories.add(key.toString());
}
else if(key instanceof Date) {
String formattedDate = converter != null ? converter.getAsString(getFacesContext(), this, key) : key.toString();
categories.add(formattedDate);
}
else {
break;
}
}
}
return categories;
}
}