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comparison src/luan/tools/WebServlet.java @ 76:97b03fc807ad

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add HttpLib and WebServlet git-svn-id: https://luan-java.googlecode.com/svn/trunk@77 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Fri, 15 Feb 2013 04:52:16 +0000
parents
children 4bf3d0c0b6b9
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75:aa7538ae5fb6 76:97b03fc807ad
1 package luan.tools;
2
3 import java.io.IOException;
4 import javax.servlet.ServletException;
5 import javax.servlet.ServletOutputStream;
6 import javax.servlet.http.HttpServlet;
7 import javax.servlet.http.HttpServletRequest;
8 import javax.servlet.http.HttpServletResponse;
9 import luan.LuanState;
10 import luan.LuanException;
11 import luan.LuanRuntimeException;
12 import luan.LuanFunction;
13 import luan.LuanElement;
14 import luan.interp.LuanCompiler;
15 import luan.lib.HttpLib;
16 import luan.lib.BasicLib;
17 import luan.lib.PackageLib;
18 import luan.lib.MathLib;
19 import luan.lib.StringLib;
20 import luan.lib.TableLib;
21 import luan.lib.HtmlLib;
22
23
24 public class WebServlet extends HttpServlet {
25
26 public static final String HTTP_SERVER = "http_server";
27
28 protected void loadLibs(LuanState luan) throws LuanException {
29 luan.load(BasicLib.LOADER,BasicLib.NAME);
30 luan.load(PackageLib.LOADER,PackageLib.NAME);
31 luan.load(MathLib.LOADER,MathLib.NAME);
32 luan.load(StringLib.LOADER,StringLib.NAME);
33 luan.load(TableLib.LOADER,TableLib.NAME);
34 luan.load(HtmlLib.LOADER,HtmlLib.NAME);
35 }
36
37 protected void loadLuan(LuanState luan) throws LuanException {
38 PackageLib.require(luan,HTTP_SERVER);
39 Object fn = luan.global.get(HttpLib.FN_NAME);
40 if( !(fn instanceof LuanFunction) )
41 throw new LuanException( luan, LuanElement.JAVA, "function '"+HttpLib.FN_NAME+"' not defined" );
42 }
43
44 protected LuanState newLuanState() throws LuanException {
45 LuanState luan = LuanCompiler.newLuanState();
46 loadLibs(luan);
47 loadLuan(luan);
48 return luan;
49 }
50
51 protected LuanState getLuanState() throws LuanException {
52 return newLuanState();
53 }
54
55 protected void service(HttpServletRequest request,HttpServletResponse response)
56 throws ServletException, IOException
57 {
58 try {
59 LuanState luan = getLuanState();
60 HttpLib.service(luan,request,response);
61 } catch(LuanException e) {
62 throw new LuanRuntimeException(e);
63 }
64 }
65
66 }