actionfacade.java

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package org.javabb.action.ajax;

import java.util.HashMap;

import javax.servlet.http.HttpServletRequest;

import org.javabb.action.infra.ActionSuper;
import org.javabb.component.Spy;
import org.javabb.component.VelocityTemplate;
import org.javabb.infra.FileTransfer;
import org.javabb.transaction.PostTransaction;
import org.javabb.transaction.TopicTransaction;
import org.javabb.vo.FavUserTopic;
import org.javabb.vo.FavUserTopicPK;
import org.javabb.vo.PostFile;
import org.javabb.vo.User;

import uk.ltd.getahead.dwr.WebContext;
import uk.ltd.getahead.dwr.WebContextFactory;


public class ActionFacade extends ActionSuper {
	private static final long serialVersionUID = 1L;

	private TopicTransaction topicTransaction;

	private PostTransaction postTransaction;
	
	public void setTopicTransaction(TopicTransaction topicTransaction) {
		this.topicTransaction = topicTransaction;
	}
	
	public void setPostTransaction(PostTransaction postTransaction) {
		this.postTransaction = postTransaction;
	}



	private HttpServletRequest getRequest(){
		WebContext ctx = WebContextFactory.get();
		return ctx.getHttpServletRequest();
	}
	

	public String addFavoriteTopic(Long topicId) {
		try {
			
			User user = (User) getRequest().getSession().getAttribute("jbbuser");

			if (topicId != null && user != null && user.getId() != null) {
				Long userId = user.getId();
				FavUserTopic favUserTopic = new FavUserTopic(
						new FavUserTopicPK(topicId, userId));

				topicTransaction.add(favUserTopic);
			}
		} catch (Exception e) {
			log.debug("Error at addFavoriteTopic = " + e.getMessage());
			return "addFavoriteTopic=0";
		}
		return "addFavoriteTopic=1";
	}

	public String deleteFavoriteTopic(Long topicId) {
		try {
			User user = (User) getRequest().getSession().getAttribute("jbbuser");

			if (topicId != null && user != null && user.getId() != null) {
				Long userId = user.getId();
				FavUserTopic favUserTopic = new FavUserTopic(
						new FavUserTopicPK(topicId, userId));
				topicTransaction.delete(favUserTopic);
			}
		} catch (Exception e) {
			log.debug("Error at deleteFavoriteTopic = " + e.getMessage());
			return "deleteFavoriteTopic=0";
		}
		return "deleteFavoriteTopic=1";
	}

	public String addWatchTopic(Long topicId) {
		try {
			User user = (User) getRequest().getSession().getAttribute("jbbuser");

			if (topicId != null && user != null && user.getId() != null) {
				Long userId = user.getId();
				topicTransaction.insertWatchTopicUser(topicId, userId);
			}
		} catch (Exception e) {
			log.debug("Error at addWatchTopic = " + e.getMessage());
			return "addWatchTopic=0";
		}
		return "addWatchTopic=1";
	}
	
	
	public String deleteWatchTopic(Long topicId) {
		try {
			User user = (User) getRequest().getSession().getAttribute("jbbuser");

			if (topicId != null && user != null && user.getId() != null) {
				Long userId = user.getId();
				topicTransaction.deleteWatchTopicUser(topicId, userId);
			}
		} catch (Exception e) {
			log.debug("Error at deleteWatchTopic = " + e.getMessage());
			return "deleteWatchTopic=0";
		}
		return "deleteWatchTopic=1";
	}
	

	public String spyTemplate(){
		HashMap map = new HashMap();
		map.put("msgs", Spy.topicViews);		
		return VelocityTemplate.makeTemplate(map, "spy_table.vm");
	}


	public String deleteFile(Long fileId){
		try {
			if(fileId != null){
				User user = (User) getRequest().getSession().getAttribute("jbbuser");
				PostFile postFile = postTransaction.loadPostFile(fileId);
				if(user != null){
					if(postFile != null){
						if((postFile.getPost().getUser().getId().intValue() 
								== user.getIdUser().intValue()) || user.isAdministrator()){
							FileTransfer.deleteFile(postFile.getFilePath(), postFile.getFileName());
							postTransaction.deletePostFile(postFile.getFileId());
						}
					}
				}
			}
		} catch (Exception e) {
			return "deleteFile=0";
		}
		return "deleteFile=1";
	}
	
	
}