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annotate src/goodjava/webserver/handlers/DomainHandler.java @ 1596:a9ff30fb5d89
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| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Fri, 26 Mar 2021 20:10:44 -0600 |
| parents | 1b809d2fdf03 |
| children | de5a81327d9c |
| rev | line source |
|---|---|
|
1402
27efb1fcbcb5
move luan.lib to goodjava
Franklin Schmidt <fschmidt@gmail.com>
parents:
1401
diff
changeset
|
1 package goodjava.webserver.handlers; |
| 1315 | 2 |
| 3 import java.io.Closeable; | |
| 4 import java.io.IOException; | |
| 5 import java.util.Map; | |
| 6 import java.util.HashMap; | |
| 1443 | 7 import java.util.Set; |
| 8 import java.util.Timer; | |
| 9 import java.util.TimerTask; | |
| 10 import java.util.concurrent.ConcurrentHashMap; | |
| 1498 | 11 import goodjava.util.SoftCacheMap; |
|
1402
27efb1fcbcb5
move luan.lib to goodjava
Franklin Schmidt <fschmidt@gmail.com>
parents:
1401
diff
changeset
|
12 import goodjava.logging.Logger; |
|
27efb1fcbcb5
move luan.lib to goodjava
Franklin Schmidt <fschmidt@gmail.com>
parents:
1401
diff
changeset
|
13 import goodjava.logging.LoggerFactory; |
|
27efb1fcbcb5
move luan.lib to goodjava
Franklin Schmidt <fschmidt@gmail.com>
parents:
1401
diff
changeset
|
14 import goodjava.webserver.Handler; |
|
27efb1fcbcb5
move luan.lib to goodjava
Franklin Schmidt <fschmidt@gmail.com>
parents:
1401
diff
changeset
|
15 import goodjava.webserver.Request; |
|
27efb1fcbcb5
move luan.lib to goodjava
Franklin Schmidt <fschmidt@gmail.com>
parents:
1401
diff
changeset
|
16 import goodjava.webserver.Response; |
| 1315 | 17 |
| 18 | |
| 19 public final class DomainHandler implements Handler { | |
| 20 private static final Logger logger = LoggerFactory.getLogger(DomainHandler.class); | |
| 21 | |
| 22 public interface Factory { | |
| 23 public Handler newHandler(String domain); | |
| 24 } | |
| 25 | |
| 1443 | 26 private static class MyTask extends TimerTask { |
| 27 private final Set<Handler> dontGc; | |
| 28 | |
| 29 MyTask(Set<Handler> dontGc) { | |
| 30 this.dontGc = dontGc; | |
| 31 } | |
| 32 | |
| 33 public void run() { | |
| 34 dontGc.clear(); | |
| 35 logger.info("dontGc.clear()"); | |
| 1315 | 36 } |
| 37 } | |
| 38 | |
| 1443 | 39 private static final long HOUR = 1000L*60*60; |
| 1498 | 40 private final Map<String,Handler> map = new SoftCacheMap<String,Handler>(); |
| 1443 | 41 private final Set<Handler> dontGc = ConcurrentHashMap.newKeySet(); |
| 42 private final Timer timer = new Timer(); | |
| 1315 | 43 |
| 44 private final Factory factory; | |
| 45 | |
| 46 public DomainHandler(Factory factory) { | |
| 47 this.factory = factory; | |
| 1443 | 48 timer.schedule(new MyTask(dontGc),HOUR,HOUR); |
| 49 } | |
| 50 | |
| 51 protected void finalize() throws Throwable { | |
| 52 timer.cancel(); | |
| 1315 | 53 } |
| 54 | |
| 55 public Response handle(Request request) { | |
| 56 String host = (String)request.headers.get("host"); | |
| 1331 | 57 if( host == null ) |
| 58 return null; | |
| 1315 | 59 int i = host.indexOf(':'); |
| 60 String domain = i == -1 ? host : host.substring(0,i); | |
| 61 Handler handler = getHandler(domain); | |
| 1443 | 62 if( handler==null ) |
| 63 return null; | |
| 64 dontGc.add(handler); | |
| 65 return handler.handle(request); | |
| 1315 | 66 } |
| 67 | |
| 68 public Handler getHandler(String domain) { | |
| 1401 | 69 domain = domain.toLowerCase(); |
| 70 synchronized(map) { | |
| 1498 | 71 Handler handler = map.get(domain); |
| 1401 | 72 if( handler == null ) { |
| 73 //if(ref!=null) logger.info("gc "+domain); | |
| 74 handler = factory.newHandler(domain); | |
| 75 if( handler == null ) | |
| 76 return null; | |
| 1498 | 77 map.put(domain,handler); |
| 1401 | 78 } |
| 79 return handler; | |
| 80 } | |
| 1315 | 81 } |
| 82 | |
| 83 public void removeHandler(String domain) { | |
| 1405 | 84 //logger.info("removeHandler "+domain); |
| 1315 | 85 domain = domain.toLowerCase(); |
| 86 synchronized(map) { | |
| 1498 | 87 Handler handler = map.remove(domain); |
| 1401 | 88 if( handler != null ) { |
| 89 close(handler); | |
| 1315 | 90 } |
| 91 } | |
| 92 } | |
| 93 | |
| 1443 | 94 private static void close(Handler handler) { |
| 95 if( handler instanceof Closeable ) { | |
| 96 try { | |
| 97 ((Closeable)handler).close(); | |
| 98 } catch(IOException e) { | |
| 99 logger.error(handler.toString(),e); | |
| 100 } | |
| 101 } | |
| 102 } | |
| 103 | |
| 1315 | 104 } |