wutil.java

Java写的ERP系统

/******************************************************************************
 * The contents of this file are subject to the   Compiere License  Version 1.1
 * ("License"); You may not use this file except in compliance with the License
 * You may obtain a copy of the License at http://www.compiere.org/license.html
 * Software distributed under the License is distributed on an  "AS IS"  basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
 * the specific language governing rights and limitations under the License.
 * The Original Code is                  Compiere  ERP & CRM  Business Solution
 * The Initial Developer of the Original Code is Jorg Janke  and ComPiere, Inc.
 * Portions created by Jorg Janke are Copyright (C) 1999-2001 Jorg Janke, parts
 * created by ComPiere are Copyright (C) ComPiere, Inc.;   All Rights Reserved.
 * Contributor(s): ______________________________________.
 *****************************************************************************/
package org.compiere.www;

import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import java.sql.*;
import java.io.*;
import javax.mail.internet.*;

import org.apache.ecs.*;
import org.apache.ecs.xhtml.*;
import org.apache.log4j.Logger;

import org.compiere.wstore.*;
import org.compiere.util.*;
import org.compiere.model.*;

/**
 *  Servlet Utilities
 *
 *  @author Jorg Janke
 *  @version  $Id: WUtil.java,v 1.10 2003/05/04 06:47:28 jjanke Exp $
 */
public final class WUtil
{
	/**	Logging								*/
	private static Logger			s_log = Logger.getLogger("org.compiere.www.WUtil");

	/**
	 *  Create Timeout Message
	 *
	 *  @param request request
	 *  @param response response
	 *  @param servlet servlet
	 *  @param ctx context
	 *  @param message - optional message
	 *  @throws ServletException
	 *  @throws IOException
	 */
	public static void createTimeoutPage (HttpServletRequest request, HttpServletResponse response,
		HttpServlet servlet, Properties ctx, String message) throws ServletException, IOException
	{
		s_log.info("createTimeoutPage - " + message);
		String windowTitle = "Timeout";
		if (ctx != null)
			windowTitle = Msg.getMsg(ctx, "Timeout");

		WDoc doc = WDoc.create (windowTitle);

		//	Body
		body body = doc.getBody();
		//  optional message
		if (message != null && message.length() > 0)
			body.addElement(new p(message));

		//  login button
		body.addElement(getLoginButton(ctx));

		//
		body.addElement(new hr());
		body.addElement(new small(servlet.getClass().getName()));
		//	fini
		createResponse (request, response, servlet, null, doc, false);
	}   //  createTimeoutPage

	/**
	 *  Create Error Message
	 *
	 *  @param request request
	 *  @param response response
	 *  @param servlet servlet
	 *  @param ctx context
	 *  @param message message
	 *  @throws ServletException
	 *  @throws IOException
	 */
	public static void createErrorPage (HttpServletRequest request, HttpServletResponse response,
		HttpServlet servlet, Properties ctx, String message) throws ServletException, IOException
	{
		s_log.info("createErrorPage - " + message);
		String windowTitle = "Error";
		if (ctx != null)
			windowTitle = Msg.getMsg(ctx, "Error");		//	JUST TO GET LANGUAGE ??
		if (message != null)
			windowTitle += ": " + message;

		WDoc doc = WDoc.create (windowTitle);

		//	Body
		body b = doc.getBody();

		b.addElement(new p(servlet.getServletName(), AlignType.center));
		b.addElement(new br());

		//	fini
		createResponse (request, response, servlet, null, doc, true);
	}   //  createErrorPage

	/**
	 *  Create Exit Page "Log-off".
	 *  <p>
	 *  - End Session
	 *  - Go to start page (e.g. /compiere/index.html)
	 *
	 *  @param request request
	 *  @param response response
	 *  @param servlet servlet
	 *  @param ctx context
	 *  @param AD_Message messahe
	 *  @throws ServletException
	 *  @throws IOException
	 */
	public static void createLoginPage (HttpServletRequest request, HttpServletResponse response,
		HttpServlet servlet, Properties ctx, String AD_Message) throws ServletException, IOException
	{
		request.getSession().invalidate();
		String url = WEnv.getBaseDirectory("index.html");
		//
		WDoc doc = null;
		if (ctx != null && AD_Message != null && !AD_Message.equals(""))
			doc = WDoc.create (Msg.getMsg(ctx, AD_Message));
		else if (AD_Message != null)
			doc = WDoc.create (AD_Message);
		else
			doc = WDoc.create (false);
		script script = new script("window.top.location.replace('" + url + "');");
		doc.getBody().addElement(script);
		//
		createResponse (request, response, servlet, null, doc, false);
	}   //  createLoginPage

	/**
	 *  Create Login Button - replace Window
	 *
	 *  @param ctx context
	 *  @return Button
	 */
	public static button getLoginButton(Properties ctx)
	{
		String text = Msg.getMsg(ctx, "Login");
		button button = new button();
		button.setType("button").setName("Login").addElement(text);
		StringBuffer cmd = new StringBuffer ("window.top.location.replace('");
		cmd.append(WEnv.getBaseDirectory("index.html"));
		cmd.append("');");
		button.setOnClick(cmd.toString());
		return button;
	}   //  getLoginButton

	/*************************************************************************/

	/**
	 *  Get Cookie Properties
	 *
	 *  @param request request
	 *  @return Properties
	 */
	public static Properties getCookieProprties(HttpServletRequest request)
	{
		//  Get Properties
		Cookie[] cookies = request.getCookies();
		if (cookies != null)
		{
			for (int i = 0; i < cookies.length; i++)
			{
				if (cookies[i].getName().equals(WEnv.COOKIE_INFO))
					return propertiesDecode(cookies[i].getValue());
			}
		}
		return new Properties();
	}   //  getProperties

	/**
	 *  Get numeric Parameter - 0 if not defined
	 *
	 *  @param request request
	 *  @param parameter parameter
	 *  @return int result or 0
	 */
	public static int getParameterAsInt(HttpServletRequest request, String parameter)
	{
		if (request == null || parameter == null)
			return 0;
		String data = request.getParameter(parameter);
		if (data == null || data.length() == 0)
			return 0;
		try
		{
			return Integer.parseInt(data);
		}
		catch (Exception e)
		{
			s_log.debug("getParameterAsInt - " + parameter + "=" + data, e);
		}
		return 0;
	}   //  getParameter

	/*************************************************************************/

	/**
	 *  Create Standard Response Header with optional Cookie and print document.
	 *  D:\j2sdk1.4.0\docs\guide\intl\encoding.doc.html
	 *
	 *  @param request request
	 *  @param response response
	 *  @param servlet servlet
	 *  @param cookieProperties cookie properties
	 *  @param doc doc
	 *  @param debug debug
	 *  @throws IOException
	 */
	public static void createResponse (HttpServletRequest request, HttpServletResponse response,
		HttpServlet servlet, Properties cookieProperties, WDoc doc, boolean debug) throws IOException
	{
		response.setHeader("Cache-Control", "no-cache");
	//	response.setContentType("text/html; charset=ISO-8859-1");   //  default
		response.setContentType("text/html; charset=UTF-8");

		//
		//  Update Cookie - overwrite
		if (cookieProperties != null)
		{
			Cookie cookie = new Cookie (WEnv.COOKIE_INFO, propertiesEncode(cookieProperties));
			cookie.setComment("(c) ComPiere, Inc - Jorg Janke");
			cookie.setSecure(false);
			cookie.setPath("/");
			if (cookieProperties.size() == 0)
				cookie.setMaxAge(0);            //  delete cookie
			else
				cookie.setMaxAge(2592000);      //  30 days in seconds   60*60*24*30
			response.addCookie(cookie);
		}
		//  add diagnostics
		if (debug && WEnv.DEBUG)
		{
		//	doc.output(System.out);
			WEnv.addFooter(request, response, servlet, doc.getBody());
		//	doc.output(System.out);
		}
	//	String content = doc.toString();
	//  response.setContentLength(content.length());    //  causes problems at the end of the output

		//  print document
		PrintWriter out = response.getWriter();     //  with character encoding support
		doc.output(out);
		out.flush();
		if (out.checkError())
			s_log.error("createResponse - error writing");
		//  binary output (is faster but does not do character set conversion)
	//	OutputStream out = response.getOutputStream();
	//	byte[] data = doc.toString().getBytes();
	//	response.setContentLength(data.length);
	//	out.write(doc.toString().getBytes());
		//
		out.close();
	}   //  createResponse

	/*************************************************************************/

	/**
	 *  Create Java Script to clear Target frame and display message
	 *
	 *  @param target target