/*
 * Copyright 2004-2006 the Seasar Foundation and the Others.
 *
 * 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 examples.jsf.action.impl;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.OutputStream;

import javax.servlet.http.HttpServletResponse;

import examples.jsf.action.AddAction;
import examples.jsf.dto.AddDto;
import examples.jsf.logic.AddLogic;

public class AddActionImpl implements AddAction {

    private AddDto addDto;

    private AddLogic addLogic;
    
	//response
	private HttpServletResponse response = null;

    public void setAddDto(AddDto addDto) {
        this.addDto = addDto;
    }

    public void setAddLogic(AddLogic addLogic) {
        this.addLogic = addLogic;
    }

    public String calculate() {
        int result = addLogic.calculate(addDto);
        addDto.setResult(result);
        return null;
    }
    
    public String download() {
    	
	    OutputStream outputStream = null; 
		try {
			
			response.setContentType("application/octet-stream;charset=Windows-31J");
		    response.setHeader("Content-Disposition","attachment;filename=\"test.xls\"");
		    outputStream = new BufferedOutputStream(response.getOutputStream());
		
	        InputStream inputStream = new BufferedInputStream(new FileInputStream("c:/test.xls"));
	        int byteData = 0;
	        while((byteData = inputStream.read()) != -1) {
	        	outputStream.write(byteData);
	        }
	        
	        inputStream.close();
	        outputStream.flush();
	        outputStream.close();
	        
	        //if(!aIsContinue) {
	        	//facesContext.responseComplete();
	        //}

		} catch(Exception e) {
			e.printStackTrace();
		} finally {
			if(outputStream != null) {
				outputStream = null;
			}
		}
    	
		return null;
		
    }

	/**
	 * response
	 * @param aResponse response
	 */
	public void setResponse(HttpServletResponse aResponse) {
		response = aResponse;
	}
}