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.expression.model.condition;
  
  import com.bstek.ureport.Utils;
  import com.bstek.ureport.build.Context;
  import com.bstek.ureport.exception.ReportComputeException;
  import com.bstek.ureport.expression.model.Expression;
  import com.bstek.ureport.expression.model.data.ExpressionData;
  import com.bstek.ureport.model.Cell;
  
  import java.util.List;
  
  /**
   * @author
   * @since 4月7日
   */
  public class CellExpressionCondition extends BaseCondition {
  	private ConditionType type=ConditionType.cell;
  	private String cellName;
  	private Expression rightExpression;
  	@Override
  	Object computeLeft(Cell cell, Cell currentCell, Object obj, Context context) {
  		if(cellName.equals(currentCell.getName())){
  			return currentCell.getData();
  		}else{
  			List<Cell> cells=Utils.fetchTargetCells(cell, context, cellName);
  			int size=cells.size();
  			if(cells==null || size==0){
  				return new ReportComputeException("Unknow cell : "+cellName);
  			}else{
  				for(Cell c:cells){
  					if(c.getRow()==cell.getRow() || c.getColumn()==cell.getColumn()){
  						return c.getData();
  					}
  				}
  				if(size>1){
  					StringBuilder sb=new StringBuilder();
  					for(Cell c:cells){
  						if(sb.length()>0){
  							sb.append(",");
  						}
  						sb.append(c.getData());
  					}
  					return sb.toString();
  				}else{
  					return cells.get(0).getData();
  				}
  			}
  		}
  	}
  
  	@Override
  	Object computeRight(Cell cell, Cell currentCell, Object obj, Context context) {
  		ExpressionData<?> exprData = rightExpression.execute(cell,currentCell, context);
  		return extractExpressionData(exprData);
  	}
  
  	@Override
  	public ConditionType getType() {
  		return type;
  	}
  
  	public void setCellName(String cellName) {
  		this.cellName = cellName;
  	}
  	public void setRightExpression(Expression rightExpression) {
  		this.rightExpression = rightExpression;
  	}
  }
  