messagerenderingimage.java

用Hibernate开发的JiveJdon

/*
 * Copyright 2003-2006 the original author or authors.
 * 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.jdon.jivejdon.model.message.upload;

import java.util.Collection;
import java.util.Iterator;

import com.jdon.jivejdon.model.ForumMessage;
import com.jdon.jivejdon.model.UploadFile;
import com.jdon.jivejdon.model.message.MessageRendering;
import com.jdon.jivejdon.util.ImageUtils;
import com.jdon.jivejdon.util.ToolsUtil;

/**
 * @author banq(http://www.jdon.com)
 *
 */
public class MessageRenderingImage  extends MessageRendering{
    private final static String SHOW_NAME = "/imageShow.jsp";  
    
    public MessageRendering clone(ForumMessage message) {
        MessageRenderingImage filter = new MessageRenderingImage();
        filter.message = message;
        return filter;
      }
    
    public String applyFilteredBody() {
        return appendTags(message.getFilteredBody());
      }

    public  String appendTags(String str){
    	Collection uploadFiles = message.getUploadFiles();
    	if ((uploadFiles == null) || (uploadFiles.size() == 0)){
    		return str;
    	}
    	UploadHelper uploadHelper = new UploadHelper();
        StringBuffer sb = new StringBuffer(str);
        sb.append("\n");
        Iterator iter = uploadFiles.iterator();
        while(iter.hasNext()){
            UploadFile uploadFile = (UploadFile)iter.next();
            if(uploadFile.isNew()) {
            	if (uploadHelper.isImage(uploadFile.getName())){
            		//生成图片文件路径，然后在数据库中保存路径
            		String hashFileName = ToolsUtil.hash(uploadFile.getName());
            		String uploadFileName = uploadFile.getName();   			
            		int extInt = uploadFileName.lastIndexOf(".");
            		String extension = uploadFileName.substring(extInt+1);
            		String saveFileName = uploadFile.getApplicationPath()+"/upload/message/" + hashFileName + "." + extension;
            		ImageUtils.saveUploadedFile(uploadFile.getTheFile(), saveFileName);            	           		            		
            		
            		String ubbPath = uploadFile.getContextPath()+"/upload/message/" + hashFileName + "." + extension;
            		uploadFile.setFilePath(saveFileName);
            		
            		append(ubbPath, sb);
            		
            	}
            }
        }
        return sb.toString();
    }
    

    private void append(String ubbPath,StringBuffer sb){
        sb.append("[img]"+ubbPath+"[/img]");
        sb.append("\n");
    }
}