| commit | author | age | ||
| 86bbf7 | 1 | /* |
| U | 2 | * To change this license header, choose License Headers in Project Properties. |
| 3 | * To change this template file, choose Tools | Templates | |
| 4 | * and open the template in the editor. | |
| 5 | */ | |
| 6 | package de.uhilger.mediaz.api; | |
| 7 | ||
| 8 | import com.google.gson.Gson; | |
| 8d7d35 | 9 | import com.sun.net.httpserver.HttpExchange; |
| U | 10 | import com.sun.net.httpserver.HttpHandler; |
| 11 | import java.io.BufferedReader; | |
| 12 | import java.io.IOException; | |
| 13 | import java.io.InputStream; | |
| 14 | import java.io.InputStreamReader; | |
| 15 | import java.io.OutputStream; | |
| 16 | import java.util.logging.Level; | |
| 17 | import java.util.logging.Logger; | |
| 18 | ||
| 86bbf7 | 19 | |
| U | 20 | /** |
| 21 | * | |
| 22 | * @author ulrich | |
| 23 | */ | |
| 8d7d35 | 24 | public abstract class AbstractHandler extends JsonHelper implements HttpHandler { |
| 86bbf7 | 25 | |
| 8d7d35 | 26 | private static final Logger logger = Logger.getLogger(AbstractHandler.class.getName()); |
| U | 27 | |
| 28 | /** Name der HTTP Methode GET */ | |
| 29 | public static final String HTTP_GET = "GET"; | |
| 30 | ||
| 31 | /** Name der HTTP Methode PUT */ | |
| 32 | public static final String HTTP_PUT = "PUT"; | |
| 33 | ||
| 34 | /** Name der HTTP Methode POST */ | |
| 35 | public static final String HTTP_POST = "POST"; | |
| 36 | ||
| 37 | /** Name der HTTP Methode DELETE */ | |
| 38 | public static final String HTTP_DELETE = "DELETE"; | |
| 39 | ||
| 40 | @Override | |
| 41 | public void handle(HttpExchange e) throws IOException { | |
| 42 | String method = e.getRequestMethod(); | |
| 43 | String response = ""; | |
| 44 | int code = 200; | |
| 45 | switch(method) { | |
| 46 | case HTTP_GET: | |
| 47 | String json = get(e); | |
| 48 | if(json != null) { | |
| 49 | response = json; | |
| 50 | } else { | |
| 51 | response = "nicht gefunden"; | |
| 52 | code = 404; | |
| 53 | } | |
| 54 | break; | |
| 55 | ||
| 56 | case HTTP_PUT: | |
| 57 | response = put(e); | |
| 58 | break; | |
| 59 | ||
| 60 | case HTTP_POST: | |
| 61 | response = post(e); | |
| 62 | code = 404; | |
| 63 | break; | |
| 64 | ||
| 65 | case HTTP_DELETE: | |
| 66 | boolean geloescht = delete(e); | |
| 67 | if(geloescht) { | |
| 68 | response = "geloescht"; | |
| 69 | } else { | |
| 70 | response = "nicht geloescht"; | |
| 71 | } | |
| 72 | break; | |
| 73 | } | |
| 74 | logger.fine(response); | |
| 75 | e.sendResponseHeaders(code, response.length()); | |
| 76 | OutputStream os = e.getResponseBody(); | |
| 77 | os.write(response.getBytes()); | |
| 78 | os.close(); | |
| 86bbf7 | 79 | } |
| U | 80 | |
| 8d7d35 | 81 | protected String bodyLesen(HttpExchange e) throws IOException { |
| U | 82 | InputStream is = e.getRequestBody(); |
| 83 | BufferedReader r = new BufferedReader(new InputStreamReader(is)); | |
| 86bbf7 | 84 | StringBuilder sb = new StringBuilder(); |
| 8d7d35 | 85 | String line = r.readLine(); |
| U | 86 | while(line != null) { |
| 87 | sb.append(line); | |
| 88 | line = r.readLine(); | |
| 89 | } | |
| 90 | r.close(); | |
| 91 | String json = sb.toString(); | |
| 92 | logger.log(Level.FINE, "json: {0}", json); | |
| 93 | return json; | |
| 86bbf7 | 94 | } |
| 8d7d35 | 95 | |
| U | 96 | |
| 97 | protected abstract String get(HttpExchange e); | |
| 98 | protected abstract String put(HttpExchange e) throws IOException; | |
| 99 | protected abstract String post(HttpExchange e); | |
| 100 | protected abstract boolean delete(HttpExchange e); | |
| 86bbf7 | 101 | |
| U | 102 | } |
