hteaaction.java

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package math.htea.controller;

import java.util.List;

import javax.activation.DataSource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import math.htea.dao.HteaDAO;
import math.htea.model.Htea;
import math.news.DAO.NewsDAO;
import math.util.Pager;

import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

public class HteaAction extends Action {
	private org.apache.commons.logging.Log __log = LogFactory.getFactory()
			.getInstance(this.getClass());

	private javax.sql.DataSource ds = null;

	// ִ��
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
		ds = getDataSource(request);
		ActionForward myforward = null;
		String myaction = mapping.getParameter();
		if (isCancelled(request)) {
			if (__log.isInfoEnabled()) {
				__log.info(" [Htea] " + mapping.getAttribute()
						+ " - action was cancelled");
			}
			return mapping.findForward("cancel");
		}

		if (__log.isInfoEnabled()) {
			__log.info(" [Htea] action: " + myaction);
		}

		if ("".equalsIgnoreCase(myaction)) {
			myforward = mapping.findForward("error");
		} else if ("HTEAADD".equalsIgnoreCase(myaction)) {
			myforward = performHteaAdd(mapping, form, request, response);
		} else if ("HTEASELECT".equalsIgnoreCase(myaction)) {
			myforward = performHteaList(mapping, form, request, response);
		} else if ("HTEACHECKOUT".equalsIgnoreCase(myaction)) {
			myforward = performHteaCheck(mapping, form, request, response);
		} else if ("HTEADELETE".equalsIgnoreCase(myaction)) {
			myforward = performHteaDelete(mapping, form, request, response);
		}

		else if ("HTEAGET".equalsIgnoreCase(myaction)) {
			myforward = performHteaSelect(mapping, form, request, response);
		} else if ("HTEASAVE".equalsIgnoreCase(myaction)) {
			myforward = performHteaSave(mapping, form, request, response);
		}
		/*
		 * else if ("HTEADELETE".equalsIgnoreCase(myaction)) { myforward =
		 * performHteaDelete(mapping, form, request, response); } else if
		 * ("CHECKOUT".equalsIgnoreCase(myaction)) { myforward =
		 * performHteaCheck(mapping, form, request, response); } else if
		 * ("HteaSHOW".equalsIgnoreCase(myaction)) { myforward =
		 * performHteaShow(mapping, form, request, response); }
		 */
		return myforward;
	}

	private ActionForward performHteaAdd(ActionMapping mapping,
			ActionForm actionForm, HttpServletRequest request,
			HttpServletResponse response) throws Exception {
		Htea htea = new Htea();
		HteaForm hteaForm = (HteaForm) actionForm;
		BeanUtils.populate(htea, BeanUtils.describe(hteaForm));
		HteaDAO hteaDAO = new HteaDAO(ds);
		if (hteaDAO.headInsert(htea))
			return mapping.findForward("success");
		else
			return mapping.findForward("error");
	}

	private ActionForward performHteaList(ActionMapping mapping,
			ActionForm actionForm, HttpServletRequest request,
			HttpServletResponse response) {

		try {
			HttpSession session = request.getSession();
			String condition;
			HteaDAO hteaDAO = new HteaDAO(ds);

			int offset;
			int length = 10;
			String pagerOffset = request.getParameter("pager.offset");
			if (pagerOffset == null || pagerOffset.equals("")) {
				offset = 0;

				HteaForm hteaForm = (HteaForm) actionForm;
				String s = hteaForm.getHtea_title();
				if (s == null) {
					s = "";
				}
				condition =s;;
				session.setAttribute("CONDITION", condition);

			} else {
				offset = Integer.parseInt(pagerOffset);
				condition = (String) session.getAttribute("CONDITION");
				if (condition == null) {
					condition = "";
				}
			}
			List newslist = hteaDAO.list(offset, length, condition);
			int size = hteaDAO.getSize("htea",  "where htea_title like '%" + condition + "%'");
			String url = request.getContextPath() + mapping.getPath() + ".do";
			String pagerHeader = Pager.generate(offset, size, length, url);
			request.setAttribute("pagerHeader", pagerHeader);
			request.setAttribute("LIST", newslist);

			return mapping.findForward("success");

		} catch (Exception e) {
			generalError(request, e);
			return mapping.findForward("error");
		}

	}
	

	private ActionForward performHteaCheck(ActionMapping mapping,
			ActionForm actionForm, HttpServletRequest request,
			HttpServletResponse response) {

		try {
			HttpSession session = request.getSession();
			// HteaAddForm hteaform = new HteaAddForm();
			HteaDAO hteaDAO = new HteaDAO(ds);
			int id = 0;
			String hteaId = request.getParameter("id");

			if (hteaId != null && !hteaId.equals("")) {
				id = Integer.parseInt(hteaId);

			} else {
				return mapping.findForward("error");
			}
			Htea htea = hteaDAO.checkout(id);
			HteaForm hteaForm = (HteaForm) actionForm;

			BeanUtils.populate(hteaForm, BeanUtils.describe(htea));

			return mapping.findForward("check");

		} catch (Exception e) {
			generalError(request, e);
			return mapping.findForward("error");
		}
	}

	private ActionForward performHteaDelete(ActionMapping mapping,
			ActionForm actionForm, HttpServletRequest request,
			HttpServletResponse response) {

		try {

			HteaDAO hteaDAO = new HteaDAO(ds);
			int i = Integer.parseInt(request.getParameter("id"));
			hteaDAO.delete(i);
			return mapping.findForward("hteadelete");
		} catch (Exception e) {
			generalError(request, e);
			return mapping.findForward("error");
		}

	}

	private ActionForward performHteaSelect(ActionMapping mapping,
			ActionForm actionForm, HttpServletRequest request,
			HttpServletResponse response) {

		try {
			HteaDAO hteaDAO = new HteaDAO(ds);
			String str_id = request.getParameter("id");
			int id = 0;
			if (str_id != null && str_id.trim().length() > 0) {
				id = Integer.parseInt(str_id);
			} else {
				return mapping.findForward("error");
			}
			Htea htea = hteaDAO.select(id);
			HteaForm hteaForm = (HteaForm) actionForm;

			BeanUtils.populate(hteaForm, BeanUtils.describe(htea));

			return mapping.findForward("hteaselect");

		} catch (Exception e) {
			generalError(request, e);
			e.printStackTrace();
			return mapping.findForward("error");
		}

	}

	private ActionForward performHteaSave(ActionMapping mapping,
			ActionForm actionForm, HttpServletRequest request,
			HttpServletResponse response) {

		try {

			HteaDAO hteaDao = new HteaDAO(ds);
			HteaForm hteaForm = (HteaForm) actionForm;
			Htea htea = new Htea();
			int id = hteaForm.getHtea_id();
			htea = hteaDao.select(id);
			BeanUtils.populate(htea, BeanUtils.describe(hteaForm));
			hteaDao.update(htea);
			return mapping.findForward("update");

		}

		catch (Exception e) {
			generalError(request, e);
			e.printStackTrace();
			return mapping.findForward("error");
		}
	}

	private void sqlNullError(HttpServletRequest request, String objName) {
		ActionErrors errors = new ActionErrors();
		errors.add("Htea", new ActionError("error.Htea.null"));
		saveErrors(request, errors);
		if (__log.isErrorEnabled()) {
			__log.error(" [Htea] has not found - " + objName);
		}
	}

	private void generalError(HttpServletRequest request, Exception e) {
		ActionErrors aes = new ActionErrors();
		aes.add(aes.GLOBAL_ERROR, new ActionError("error.general", e
				.getMessage()));
		saveErrors(request, aes);
		e.printStackTrace();
		if (__log.isErrorEnabled()) {
			__log.error(" [Htea] Error - " + e.getMessage());
		}
	}
}