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annotate src/goodjava/webserver/handlers/FileHandler.java @ 1521:d3e61cd2aca0

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docs and shell bug fix
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 25 Jun 2020 23:17:14 -0600
parents 27efb1fcbcb5
children 8a7519dee55c
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1 package goodjava.webserver.handlers;
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2
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3 import java.io.File;
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4 import java.io.FileInputStream;
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5 import java.io.Writer;
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6 import java.io.OutputStreamWriter;
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7 import java.io.IOException;
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8 import java.text.DateFormat;
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9 import java.text.SimpleDateFormat;
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10 import java.util.Date;
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11 import goodjava.webserver.Handler;
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12 import goodjava.webserver.Request;
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13 import goodjava.webserver.Response;
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14 import goodjava.webserver.ResponseOutputStream;
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16
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17 public class FileHandler implements Handler {
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18 final File dir;
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20 public FileHandler() {
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21 this(".");
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22 }
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24 public FileHandler(String pathname) {
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25 this(new File(pathname));
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26 }
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28 public FileHandler(File dir) {
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29 if( !dir.isDirectory() )
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30 throw new RuntimeException("must be a directory");
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31 this.dir = dir;
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32 }
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33
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34 File file(Request request) {
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35 return new File(dir,request.path);
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36 }
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37
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38 public Response handle(Request request) {
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39 try {
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40 File file = file(request);
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41 if( file.isFile() ) {
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42 Response response = new Response();
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43 response.body = new Response.Body( file.length(), new FileInputStream(file) );
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44 return response;
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45 }
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46 return null;
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47 } catch(IOException e) {
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48 throw new RuntimeException(e);
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49 }
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50 }
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51 }