Mercurial Hosting > luan

annotate src/luan/tools/WebServlet.java @ 84:cca4f8522893

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
minor changes git-svn-id: https://luan-java.googlecode.com/svn/trunk@85 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Mon, 18 Feb 2013 23:15:14 +0000
parents 9df729fa4419
children 6db8f286fa6c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
76
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
1 package luan.tools;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
2
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
3 import java.io.IOException;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
4 import javax.servlet.ServletException;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
5 import javax.servlet.ServletOutputStream;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
6 import javax.servlet.http.HttpServlet;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
7 import javax.servlet.http.HttpServletRequest;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
8 import javax.servlet.http.HttpServletResponse;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
9 import luan.LuanState;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
10 import luan.LuanException;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
11 import luan.LuanRuntimeException;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
12 import luan.LuanFunction;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
13 import luan.LuanElement;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
14 import luan.interp.LuanCompiler;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
15 import luan.lib.HttpLib;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
16 import luan.lib.BasicLib;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
17 import luan.lib.PackageLib;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
18 import luan.lib.MathLib;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
19 import luan.lib.StringLib;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
20 import luan.lib.TableLib;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
21 import luan.lib.HtmlLib;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
22
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
23
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
24 public class WebServlet extends HttpServlet {
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
25
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
26 public static final String HTTP_SERVER = "http_server";
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
27
77
4bf3d0c0b6b9 make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 76
diff changeset
28 protected LuanState luanState = null;
4bf3d0c0b6b9 make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 76
diff changeset
29
76
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
30 protected void loadLibs(LuanState luan) throws LuanException {
84
cca4f8522893 minor changes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 81
diff changeset
31 luan.load(BasicLib.NAME,BasicLib.LOADER);
cca4f8522893 minor changes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 81
diff changeset
32 luan.load(PackageLib.NAME,PackageLib.LOADER);
cca4f8522893 minor changes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 81
diff changeset
33 luan.load(MathLib.NAME,MathLib.LOADER);
cca4f8522893 minor changes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 81
diff changeset
34 luan.load(StringLib.NAME,StringLib.LOADER);
cca4f8522893 minor changes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 81
diff changeset
35 luan.load(TableLib.NAME,TableLib.LOADER);
cca4f8522893 minor changes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 81
diff changeset
36 luan.load(HtmlLib.NAME,HtmlLib.LOADER);
76
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
37 }
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
38
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
39 protected LuanState newLuanState() throws LuanException {
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
40 LuanState luan = LuanCompiler.newLuanState();
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
41 loadLibs(luan);
84
cca4f8522893 minor changes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 81
diff changeset
42 PackageLib.require(luan,HTTP_SERVER);
cca4f8522893 minor changes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 81
diff changeset
43 Object fn = luan.global().get(HttpLib.FN_NAME);
cca4f8522893 minor changes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 81
diff changeset
44 if( !(fn instanceof LuanFunction) )
cca4f8522893 minor changes
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 81
diff changeset
45 throw new LuanException( luan, LuanElement.JAVA, "function '"+HttpLib.FN_NAME+"' not defined" );
76
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
46 return luan;
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
47 }
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
48
81
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 77
diff changeset
49 protected LuanState getLuanState(HttpServletRequest request) throws LuanException {
77
4bf3d0c0b6b9 make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 76
diff changeset
50 synchronized(this) {
4bf3d0c0b6b9 make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 76
diff changeset
51 if( luanState == null )
4bf3d0c0b6b9 make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 76
diff changeset
52 luanState = newLuanState();
4bf3d0c0b6b9 make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 76
diff changeset
53 }
4bf3d0c0b6b9 make LuanState cloneable
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 76
diff changeset
54 return luanState.deepClone();
76
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
55 }
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
56
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
57 protected void service(HttpServletRequest request,HttpServletResponse response)
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
58 throws ServletException, IOException
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
59 {
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
60 try {
81
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 77
diff changeset
61 LuanState luan = getLuanState(request);
76
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
62 HttpLib.service(luan,request,response);
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
63 } catch(LuanException e) {
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
64 throw new LuanRuntimeException(e);
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
65 }
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
66 }
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
67
97b03fc807ad add HttpLib and WebServlet
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
68 }