content: /*******************************************************************************
   * Copyright 2017 Bstek
   *
   * 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 com.bstek.ureport.chart.dataset.impl;
  
  import com.bstek.ureport.build.Context;
  import com.bstek.ureport.chart.dataset.Dataset;
  import com.bstek.ureport.chart.dataset.impl.category.BarDataset;
  import com.bstek.ureport.chart.dataset.impl.category.LineDataset;
  import com.bstek.ureport.exception.ReportComputeException;
  import com.bstek.ureport.model.Cell;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * @author
   * @since 6月8日
   */
  public class MixDataset implements Dataset {
  	private List<BarDataset> barDatasets=new ArrayList<BarDataset>();
  	private List<LineDataset> lineDatasets=new ArrayList<LineDataset>();
  
  	@Override
  	public String buildDataJson(Context context,Cell cell) {
  		StringBuilder sb=new StringBuilder();
  		sb.append("{");
  		sb.append("\"datasets\":[");
  		int index=0;
  		for(BarDataset ds:barDatasets){
  			if(index>0){
  				sb.append(",");
  			}
  			sb.append(ds.toMixJson(context, cell, index));
  		}
  		for(LineDataset ds:lineDatasets){
  			if(index>0){
  				sb.append(",");
  			}
  			sb.append(ds.toMixJson(context, cell, index));
  		}
  		sb.append("],");
  		String labels=null;
  		if(barDatasets.size()>0){
  			labels=barDatasets.get(0).getLabels();
  		}else if(lineDatasets.size()>0){
  			labels=lineDatasets.get(0).getLabels();
  		}else{
  			throw new ReportComputeException("Mix chart need one dataset at least.");
  		}
  		sb.append("labels:"+labels);
  		sb.append("}");
  		return sb.toString();
  	}
  
  
  	@Override
  	public String getType() {
  		return "bar";
  	}
  
  	public List<BarDataset> getBarDatasets() {
  		return barDatasets;
  	}
  
  	public void setBarDatasets(List<BarDataset> barDatasets) {
  		this.barDatasets = barDatasets;
  	}
  
  	public List<LineDataset> getLineDatasets() {
  		return lineDatasets;
  	}
  
  	public void setLineDatasets(List<LineDataset> lineDatasets) {
  		this.lineDatasets = lineDatasets;
  	}
  }
  