Mercurial Hosting > luan
annotate src/goodjava/webserver/handlers/DomainHandler.java @ 1800:a045f30fa67d
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| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Fri, 08 Mar 2024 10:24:00 -0700 |
| parents | 9d9683e76496 |
| children |
| 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; | |
| 1443 | 6 import java.util.Set; |
| 1601 | 7 import java.util.Collections; |
| 1443 | 8 import java.util.Timer; |
| 9 import java.util.TimerTask; | |
| 10 import java.util.concurrent.ConcurrentHashMap; | |
| 1498 | 11 import goodjava.util.SoftCacheMap; |
| 1766 | 12 import goodjava.util.WeakCacheMap; |
|
1402
27efb1fcbcb5
move luan.lib to goodjava
Franklin Schmidt <fschmidt@gmail.com>
parents:
1401
diff
changeset
|
13 import goodjava.logging.Logger; |
|
27efb1fcbcb5
move luan.lib to goodjava
Franklin Schmidt <fschmidt@gmail.com>
parents:
1401
diff
changeset
|
14 import goodjava.logging.LoggerFactory; |
|
27efb1fcbcb5
move luan.lib to goodjava
Franklin Schmidt <fschmidt@gmail.com>
parents:
1401
diff
changeset
|
15 import goodjava.webserver.Handler; |
|
27efb1fcbcb5
move luan.lib to goodjava
Franklin Schmidt <fschmidt@gmail.com>
parents:
1401
diff
changeset
|
16 import goodjava.webserver.Request; |
|
27efb1fcbcb5
move luan.lib to goodjava
Franklin Schmidt <fschmidt@gmail.com>
parents:
1401
diff
changeset
|
17 import goodjava.webserver.Response; |
| 1315 | 18 |
| 19 | |
| 20 public final class DomainHandler implements Handler { | |
| 21 private static final Logger logger = LoggerFactory.getLogger(DomainHandler.class); | |
| 22 | |
| 23 public interface Factory { | |
| 24 public Handler newHandler(String domain); | |
| 25 } | |
| 26 | |
| 1443 | 27 private static class MyTask extends TimerTask { |
| 28 private final Set<Handler> dontGc; | |
| 29 | |
| 30 MyTask(Set<Handler> dontGc) { | |
| 31 this.dontGc = dontGc; | |
| 32 } | |
| 33 | |
| 34 public void run() { | |
| 35 dontGc.clear(); | |
| 36 logger.info("dontGc.clear()"); | |
| 1315 | 37 } |
| 38 } | |
| 39 | |
| 1443 | 40 private static final long HOUR = 1000L*60*60; |
| 1601 | 41 private final Map<String,Handler> map = Collections.synchronizedMap(new SoftCacheMap<String,Handler>()); |
| 1443 | 42 private final Set<Handler> dontGc = ConcurrentHashMap.newKeySet(); |
| 43 private final Timer timer = new Timer(); | |
| 1315 | 44 |
| 45 private final Factory factory; | |
| 46 | |
| 47 public DomainHandler(Factory factory) { | |
| 48 this.factory = factory; | |
| 1443 | 49 timer.schedule(new MyTask(dontGc),HOUR,HOUR); |
| 50 } | |
| 51 | |
| 52 protected void finalize() throws Throwable { | |
| 53 timer.cancel(); | |
| 1315 | 54 } |
| 55 | |
| 56 public Response handle(Request request) { | |
| 57 String host = (String)request.headers.get("host"); | |
| 1331 | 58 if( host == null ) |
| 59 return null; | |
| 1315 | 60 int i = host.indexOf(':'); |
| 61 String domain = i == -1 ? host : host.substring(0,i); | |
| 62 Handler handler = getHandler(domain); | |
| 1443 | 63 if( handler==null ) |
| 64 return null; | |
| 65 dontGc.add(handler); | |
| 66 return handler.handle(request); | |
| 1315 | 67 } |
| 68 | |
| 69 public Handler getHandler(String domain) { | |
| 1601 | 70 domain = domain.toLowerCase().intern(); |
| 71 synchronized(domain) { | |
| 1498 | 72 Handler handler = map.get(domain); |
| 1401 | 73 if( handler == null ) { |
| 74 //if(ref!=null) logger.info("gc "+domain); | |
| 75 handler = factory.newHandler(domain); | |
| 76 if( handler == null ) | |
| 77 return null; | |
| 1498 | 78 map.put(domain,handler); |
| 1401 | 79 } |
| 80 return handler; | |
| 81 } | |
| 1315 | 82 } |
| 83 | |
| 84 public void removeHandler(String domain) { | |
| 1405 | 85 //logger.info("removeHandler "+domain); |
| 1601 | 86 domain = domain.toLowerCase().intern(); |
| 87 synchronized(domain) { | |
| 1498 | 88 Handler handler = map.remove(domain); |
| 1401 | 89 if( handler != null ) { |
| 90 close(handler); | |
| 1769 | 91 dontGc.remove(handler); |
| 1315 | 92 } |
| 93 } | |
| 94 } | |
| 95 | |
| 1443 | 96 private static void close(Handler handler) { |
| 97 if( handler instanceof Closeable ) { | |
| 98 try { | |
| 99 ((Closeable)handler).close(); | |
| 100 } catch(IOException e) { | |
| 101 logger.error(handler.toString(),e); | |
| 102 } | |
| 103 } | |
| 104 } | |
| 105 | |
| 1315 | 106 } |