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launcher/src/main/java/org/apidesign/bck2brwsr/dew/Dew.java
author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
Wed, 16 Jan 2013 11:36:19 +0100
branchdew
changeset 465 443eb0f21a0a
parent 462 aa69b1387624
child 466 d6b1f996c0d8
permissions -rw-r--r--
Trying to server real HTML and Java code 
     1 /*

     2  * To change this template, choose Tools | Templates

     3  * and open the template in the editor.

     4  */

     5 package org.apidesign.bck2brwsr.dew;

     6 

     7 import java.io.ByteArrayInputStream;

     8 import java.io.IOException;

     9 import java.io.InputStream;

    10 import java.io.InputStreamReader;

    11 import java.io.OutputStream;

    12 import java.util.List;

    13 import java.util.logging.Logger;

    14 import javax.tools.Diagnostic;

    15 import javax.tools.JavaFileObject;

    16 import org.glassfish.grizzly.http.Method;

    17 import org.glassfish.grizzly.http.server.HttpHandler;

    18 import org.glassfish.grizzly.http.server.Request;

    19 import org.glassfish.grizzly.http.server.Response;

    20 import org.glassfish.grizzly.http.util.HttpStatus;

    21 import org.json.JSONObject;

    22 import org.json.JSONTokener;

    23 

    24 /**

    25  *

    26  * @author phrebejk

    27  */

    28 public class Dew extends HttpHandler {

    29     private String html = "<html><body>\n"

    30         + " <button id='btn'>Hello!</button>\n"

    31         + " <hr/>\n"

    32         + "\n"

    33         + "\n"

    34         + "\n"

    35         + " <script src=\"/bck2brwsr.js\"></script>\n"

    36         + " <script type=\"text/javascript\">\n"

    37         + "   function ldCls(res) {\n"

    38         + "     var request = new XMLHttpRequest();\n"

    39         + "     request.open('GET', '/dew/classes/' + res, false);\n"

    40         + "     request.send();\n"

    41         + "     var arr = eval('(' + request.responseText + ')');\n"

    42         + "     return arr;\n"

    43         + "   }\n"

    44         + " //  var vm = new bck2brwsr(ldCls);\n"

    45         + " //  vm.loadClass('bck2brwsr.demo.Index');\n"

    46         + " </script>\n"

    47         + "</body></html>\n";

    48     private String java = "package bck2brwsr.demo;\n"

    49                 + "import org.apidesign.bck2brwsr.htmlpage.api.*;\n"

    50             + "@Page(xhtml=\"index.html\", className=\"Index\")\n"

    51             + "class X {\n"

    52             + "   @OnClick(id=\"btn\") static void clcs() {\n"

    53             + "     Index.BTN.setDisabled(true);\n"

    54             + "   }\n"

    55             + "}\n";

    56     private Compile data;

    57 

    58     @Override

    59     public void service(Request request, Response response) throws Exception {

    60         

    61         if ( request.getMethod() == Method.POST ) {

    62             InputStream is = request.getInputStream();

    63             JSONTokener tok = new JSONTokener(new InputStreamReader(is));

    64             JSONObject obj = new JSONObject(tok);

    65             html = obj.getString("html");

    66             java = obj.getString("java");

    67             

    68             Compile res = Compile.create(html, java);

    69             List<Diagnostic<? extends JavaFileObject>> err = res.getErrors();

    70             if (err.isEmpty()) {

    71                 data = res;

    72                 response.getOutputStream().write("[]".getBytes());

    73                 response.setStatus(HttpStatus.OK_200);

    74             } else {

    75                 response.getOutputStream().write(("[errors:'" + err + "']").getBytes());

    76                 response.setStatus(HttpStatus.PRECONDITION_FAILED_412);

    77             }

    78             

    79             return;

    80         }

    81         

    82         String r = request.getHttpHandlerPath();

    83         if (r == null || r.equals("/")) {

    84             r = "index.html";

    85         }

    86         if (r.equals("/result.html")) {

    87             response.setContentType("text/html");

    88             response.getOutputBuffer().write(html);

    89             response.setStatus(HttpStatus.OK_200);

    90             return;

    91         }

    92         

    93         if (r.startsWith("/")) {

    94             r = r.substring(1);

    95         }

    96         if (r.startsWith("classes/")) {

    97             if (data == null) {

    98                 //data = Compile.create(html, java);

    99             }

   100             r = r.substring(8);

   101             byte[] is = data == null ? null : data.get(r);

   102             if (is == null) {

   103                 is = new byte[0];

   104             }

   105             OutputStream os = response.getOutputStream();

   106             copyStream(new ByteArrayInputStream(is), os, request.getRequestURL().toString() );

   107             return;

   108         }

   109         

   110         if (r.endsWith(".html") || r.endsWith(".xhtml")) {

   111             response.setContentType("text/html");

   112         }

   113         OutputStream os = response.getOutputStream();

   114         try (InputStream is = Dew.class.getResourceAsStream(r) ) {

   115             copyStream(is, os, request.getRequestURL().toString() );

   116         } catch (IOException ex) {

   117             response.setDetailMessage(ex.getLocalizedMessage());

   118             response.setError();

   119             response.setStatus(404);

   120         }

   121     }

   122     private static final Logger LOG = Logger.getLogger(Dew.class.getName());

   123     

   124     static void copyStream(InputStream is, OutputStream os, String baseURL) throws IOException {

   125         for (;;) {

   126             int ch = is.read();

   127             if (ch == -1) {

   128                 break;

   129             }

   130             os.write(ch);            

   131         }

   132     }

   133     

   134 }
hg/bck2brwsr