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1
15
16 package com.jdon.bussinessproxy.remote.http;
17
18 import java.io.IOException  ;
19 import java.io.ObjectInputStream ;
20 import java.io.ObjectOutputStream ;
21 import java.io.OutputStream ;
22 import java.io.PrintWriter ;
23 import java.util.ArrayList ;
24 import java.util.Collection ;
25
26 import javax.servlet.ServletContext ;
27 import javax.servlet.ServletException ;
28 import javax.servlet.http.HttpServlet ;
29 import javax.servlet.http.HttpServletRequest ;
30 import javax.servlet.http.HttpServletResponse ;
31 import javax.servlet.http.HttpSession ;
32
33 import com.jdon.bussinessproxy.TargetMetaDef;
34 import com.jdon.bussinessproxy.meta.MethodMetaArgs;
35 import com.jdon.container.ContainerWrapper;
36 import com.jdon.container.config.app.AppConfigureCollection;
37 import com.jdon.container.finder.ComponentKeys;
38 import com.jdon.container.finder.ServletContainerFinder;
39 import com.jdon.container.startup.ContainerSetupScript;
40 import com.jdon.controller.service.Service;
41 import com.jdon.controller.service.ServiceFacade;
42 import com.jdon.controller.service.ServiceFactory;
43
44 import com.jdon.util.Debug;
45 import com.jdon.util.StringUtil;
46
47
59 public class InvokerServlet extends HttpServlet {
60
61 public final static String module = InvokerServlet.class.getName();
62 private ContainerSetupScript css = new ContainerSetupScript();
63 private final static ServletContainerFinder scf = new ServletContainerFinder();
64
70 public void init() throws ServletException {
71 ServletContext sc = this.getServletContext();
72 String configList = this.getServletConfig().getInitParameter("configList");
73 String [] configs = StringUtil.split(configList, ",");
74 for(int i = 0 ; i < configs.length; i ++){
75 Debug.logVerbose("[JdonFramework] locate a configuration in web.xml :" + configs[i], module);
76 css.prepare(configs[i], sc);
77 }
78 }
79
80 public void destroy() {
81 css.destroyed(this.getServletContext());
82 }
83
84 protected void doGet(HttpServletRequest request,
85 HttpServletResponse response) throws ServletException ,
86 IOException {
87 response.setContentType("text/html");
88 PrintWriter out = new PrintWriter (response.getOutputStream());
89 out.println("<html>");
90 out.println("<head><title>InvokerServlet</title></head>");
91 out.println("<body> ");
92 out.println(request.getRemoteUser());
93 out.println(" Welcome to login in !!</body></html>");
94 out.close();
95 }
96
97 protected void doPost(HttpServletRequest request,
98 HttpServletResponse response) throws ServletException ,
99 IOException {
100 if (request.getParameter("login") != null) {
101 doGet(request, response);
103 return;
104 }
105 HttpRequest httpRequest = getHttpServiceRequest(request);
107 if (httpRequest == null) return;
108 HttpResponse httpResponse = null;
109 try {
110 TargetMetaDef targetMetaDef = httpRequest.getTargetMetaDef();
111 String p_methodName = httpRequest.getMethodName();
112 Class [] paramTypes = httpRequest.getParamTypes();
113 Object [] p_args = httpRequest.getArgs();
114
115 ServiceFacade serviceFacade = new ServiceFacade();
116 Service service = serviceFacade.getService(request);
117
118 MethodMetaArgs methodMetaArgs = new MethodMetaArgs(p_methodName,
120 paramTypes, p_args);
121 Object object = service.execute(targetMetaDef,
122 methodMetaArgs,
123 request);
124 httpResponse = new HttpResponse(object);
125 } catch (Exception e) {
126 Debug.logError(e, module);
127 httpResponse = new HttpResponse(new Throwable (e));
128 } catch (Throwable te) {
129 Debug.logError(te, module);
130 httpResponse = new HttpResponse(te);
131 }
132
133 HttpSession session = request.getSession(true);
135 response.addHeader("jsessionid", session.getId());
136 writeHttpServiceResponse(response, httpResponse);
137 }
138
139
142 private void writeHttpServiceResponse(HttpServletResponse response,
143 HttpResponse httpResponse) throws
144 IOException {
145 OutputStream outputStream = response.getOutputStream();
146 ObjectOutputStream oos = new ObjectOutputStream (outputStream);
147 oos.writeObject(httpResponse);
148 oos.close();
149 }
150
151
154 private HttpRequest getHttpServiceRequest(HttpServletRequest request) throws
155 IOException {
156 HttpRequest httpServiceRequest = null;
157 ObjectInputStream ois = null;
158 try {
159 ois = new ObjectInputStream (request.getInputStream());
160 httpServiceRequest = (HttpRequest) ois.readObject();
161 } catch (Exception e) {
162 Debug.logError(e, module);
163 }finally{
164 if (ois != null)
165 ois.close();
166 }
167 return httpServiceRequest;
168 }
169
170 }
171 |
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