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annotate src/goodjava/webserver/handlers/SafeHandler.java @ 1797:ba43135bb98d

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author Franklin Schmidt <fschmidt@gmail.com>
date Sun, 11 Feb 2024 18:52:53 -0700
parents fa066aaa068c
children
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1 package goodjava.webserver.handlers;
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2
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3 import java.io.Writer;
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4 import java.io.OutputStreamWriter;
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5 import java.io.PrintWriter;
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6 import java.io.IOException;
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7 import goodjava.logging.Logger;
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8 import goodjava.logging.LoggerFactory;
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9 import goodjava.webserver.Handler;
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10 import goodjava.webserver.Request;
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11 import goodjava.webserver.Response;
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12 import goodjava.webserver.ResponseOutputStream;
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13 import goodjava.webserver.Status;
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16 public final class SafeHandler implements Handler {
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17 private static final Logger logger = LoggerFactory.getLogger(SafeHandler.class);
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18
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19 private final Handler handler;
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20
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21 public SafeHandler(Handler handler) {
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22 this.handler = handler;
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23 }
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24
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25 public Response handle(Request request) {
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26 try {
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27 Response response = handler.handle(request);
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28 if( response != null )
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29 return response;
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30 } catch(RuntimeException e) {
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31 logger.error("",e);
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32 Response response = new Response();
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33 response.status = Status.INTERNAL_SERVER_ERROR;
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34 response.headers.put( "Content-Type", "text/plain; charset=utf-8" );
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35 PrintWriter writer = new PrintWriter( new ResponseOutputStream(response) );
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36 writer.write( "Internel Server Error\n\n" );
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37 e.printStackTrace(writer);
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38 writer.close();
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39 return response;
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40 }
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41 return Response.errorResponse( Status.NOT_FOUND, request.path+" not found\n" );
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42 }
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43
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44 }