1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/dew/src/main/java/org/apidesign/bck2brwsr/dew/Dew.java	Wed Jan 23 13:18:46 2013 +0100
     1.3 @@ -0,0 +1,131 @@
     1.4 +/**
     1.5 + * Back 2 Browser Bytecode Translator
     1.6 + * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
     1.7 + *
     1.8 + * This program is free software: you can redistribute it and/or modify
     1.9 + * it under the terms of the GNU General Public License as published by
    1.10 + * the Free Software Foundation, version 2 of the License.
    1.11 + *
    1.12 + * This program is distributed in the hope that it will be useful,
    1.13 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.14 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.15 + * GNU General Public License for more details.
    1.16 + *
    1.17 + * You should have received a copy of the GNU General Public License
    1.18 + * along with this program. Look for COPYING file in the top folder.
    1.19 + * If not, see http://opensource.org/licenses/GPL-2.0.
    1.20 + */
    1.21 +package org.apidesign.bck2brwsr.dew;
    1.22 +
    1.23 +import java.io.ByteArrayInputStream;
    1.24 +import java.io.IOException;
    1.25 +import java.io.InputStream;
    1.26 +import java.io.InputStreamReader;
    1.27 +import java.io.OutputStream;
    1.28 +import java.io.Writer;
    1.29 +import java.util.List;
    1.30 +import java.util.Locale;
    1.31 +import java.util.Locale;
    1.32 +import java.util.logging.Logger;
    1.33 +import javax.tools.Diagnostic;
    1.34 +import javax.tools.JavaFileObject;
    1.35 +import org.apidesign.vm4brwsr.Bck2Brwsr;
    1.36 +import org.glassfish.grizzly.http.Method;
    1.37 +import org.glassfish.grizzly.http.server.HttpHandler;
    1.38 +import org.glassfish.grizzly.http.server.Request;
    1.39 +import org.glassfish.grizzly.http.server.Response;
    1.40 +import org.glassfish.grizzly.http.util.HttpStatus;
    1.41 +import org.json.JSONArray;
    1.42 +import org.json.JSONObject;
    1.43 +import org.json.JSONStringer;
    1.44 +import org.json.JSONTokener;
    1.45 +
    1.46 +/**
    1.47 + *
    1.48 + * @author phrebejk
    1.49 + */
    1.50 +public class Dew extends HttpHandler implements Bck2Brwsr.Resources {
    1.51 +    private String html = "";
    1.52 +    private Compile data;
    1.53 +
    1.54 +    @Override
    1.55 +    public void service(Request request, Response response) throws Exception {
    1.56 +        
    1.57 +        if ( request.getMethod() == Method.POST ) {
    1.58 +            InputStream is = request.getInputStream();
    1.59 +            JSONTokener tok = new JSONTokener(new InputStreamReader(is));
    1.60 +            JSONObject obj = new JSONObject(tok);
    1.61 +            String tmpHtml = obj.getString("html");
    1.62 +            String tmpJava = obj.getString("java");
    1.63 +            
    1.64 +            Compile res = Compile.create(tmpHtml, tmpJava);
    1.65 +            List<Diagnostic<? extends JavaFileObject>> err = res.getErrors();
    1.66 +            if (err.isEmpty()) {
    1.67 +                data = res;
    1.68 +                html = tmpHtml;
    1.69 +                response.getOutputStream().write("[]".getBytes());
    1.70 +                response.setStatus(HttpStatus.OK_200);
    1.71 +            } else {
    1.72 +                
    1.73 +                JSONArray errors = new JSONArray();
    1.74 +                
    1.75 +                for (Diagnostic<? extends JavaFileObject> d : err) {
    1.76 +                    JSONObject e = new JSONObject();
    1.77 +                    e.put("col", d.getColumnNumber());
    1.78 +                    e.put("line", d.getLineNumber());
    1.79 +                    e.put("kind", d.getKind().toString());
    1.80 +                    e.put("msg", d.getMessage(Locale.ENGLISH));
    1.81 +                    errors.put(e);
    1.82 +                }
    1.83 +                
    1.84 +                errors.write(response.getWriter());                
    1.85 +                response.setStatus(HttpStatus.PRECONDITION_FAILED_412);
    1.86 +            }
    1.87 +            
    1.88 +            return;
    1.89 +        }
    1.90 +        
    1.91 +        String r = request.getHttpHandlerPath();
    1.92 +        if (r == null || r.equals("/")) {
    1.93 +            r = "index.html";
    1.94 +        }
    1.95 +        if (r.equals("/result.html")) {
    1.96 +            response.setContentType("text/html");
    1.97 +            response.getOutputBuffer().write(html);
    1.98 +            response.setStatus(HttpStatus.OK_200);
    1.99 +            return;
   1.100 +        }
   1.101 +        
   1.102 +        if (r.startsWith("/")) {
   1.103 +            r = r.substring(1);
   1.104 +        }
   1.105 +        
   1.106 +        if (r.endsWith(".html") || r.endsWith(".xhtml")) {
   1.107 +            response.setContentType("text/html");
   1.108 +        }
   1.109 +        OutputStream os = response.getOutputStream();
   1.110 +        try (InputStream is = Dew.class.getResourceAsStream(r) ) {
   1.111 +            copyStream(is, os, request.getRequestURL().toString() );
   1.112 +        } catch (IOException ex) {
   1.113 +            response.setDetailMessage(ex.getLocalizedMessage());
   1.114 +            response.setError();
   1.115 +            response.setStatus(404);
   1.116 +        }
   1.117 +    }
   1.118 +    
   1.119 +    static void copyStream(InputStream is, OutputStream os, String baseURL) throws IOException {
   1.120 +        for (;;) {
   1.121 +            int ch = is.read();
   1.122 +            if (ch == -1) {
   1.123 +                break;
   1.124 +            }
   1.125 +            os.write(ch);            
   1.126 +        }
   1.127 +    }
   1.128 +
   1.129 +    @Override
   1.130 +    public InputStream get(String r) throws IOException {
   1.131 +        byte[] arr = data == null ? null : data.get(r);
   1.132 +        return arr == null ? null : new ByteArrayInputStream(arr);
   1.133 +    }
   1.134 +}