| 24 |
|
* The current CVS revision of this class |
| 25 |
|
*/ |
| 26 |
|
public final String REVISION = "$Revision$"; |
| 27 |
+ |
|
| 28 |
+ |
/** |
| 29 |
+ |
* The maximum size of a packet |
| 30 |
+ |
*/ |
| 31 |
+ |
private final int packetSizeLimit = 8192; |
| 32 |
|
|
| 33 |
|
//---STATIC METHODS--- |
| 34 |
|
|
| 38 |
|
* It is normal to use this constructor in preference |
| 39 |
|
* to any other in this class. |
| 40 |
|
*/ |
| 41 |
< |
public UDPReader(int port, Filter parent){ |
| 41 |
> |
public UDPReader(int port, Queue queue){ |
| 42 |
|
_port = port; |
| 43 |
< |
_parent = parent; |
| 43 |
> |
_queue = queue; |
| 44 |
|
} |
| 45 |
|
|
| 46 |
|
//---PUBLIC METHODS--- |
| 68 |
|
while (running){ |
| 69 |
|
try { |
| 70 |
|
|
| 71 |
< |
// receive request and pass on to the FilterThread. |
| 71 |
> |
// receive request and put it in the Queue |
| 72 |
|
buf = new byte[packetSizeLimit]; |
| 73 |
|
DatagramPacket packet = new DatagramPacket(buf, buf.length); |
| 74 |
|
socket.receive(packet); |
| 75 |
< |
FilterThread t = new FilterThread(packet, _parent); |
| 76 |
< |
t.start(); |
| 72 |
< |
|
| 75 |
> |
String xml = new String(packet.getData()); |
| 76 |
> |
_queue.add(xml); |
| 77 |
|
} |
| 78 |
|
catch (IOException e) { |
| 79 |
|
_logger.write(this.toString(), Logger.WARNING, "This UDPReader thread has been shut down as an exception occured: "+e); |
| 87 |
|
* Overrides the {@link java.lang.Object#toString() Object.toString()} |
| 88 |
|
* method to provide clean logging (every class should have this). |
| 89 |
|
* |
| 90 |
+ |
* This uses the uk.ac.ukc.iscream.util.NameFormat class |
| 91 |
+ |
* to format the toString() |
| 92 |
+ |
* |
| 93 |
|
* @return the name of this class and its CVS revision |
| 94 |
|
*/ |
| 95 |
|
public String toString() { |
| 96 |
< |
return this.getClass().getName() + "(" + REVISION.substring(11, REVISION.length() - 2) + ")"; |
| 96 |
> |
return FormatName.getName( |
| 97 |
> |
_name, |
| 98 |
> |
getClass().getName(), |
| 99 |
> |
REVISION); |
| 100 |
|
} |
| 101 |
|
|
| 102 |
|
//---PRIVATE METHODS--- |
| 105 |
|
|
| 106 |
|
//---ATTRIBUTES--- |
| 107 |
|
|
| 108 |
< |
Logger _logger = ReferenceManager.getInstance().getLogger(); |
| 109 |
< |
int _port; |
| 110 |
< |
Filter _parent; |
| 108 |
> |
/** |
| 109 |
> |
* This is the friendly identifier of the |
| 110 |
> |
* component this class is running in. |
| 111 |
> |
* eg, a Filter may be called "filter1", |
| 112 |
> |
* If this class does not have an owning |
| 113 |
> |
* component, a name from the configuration |
| 114 |
> |
* can be placed here. This name could also |
| 115 |
> |
* be changed to null for utility classes. |
| 116 |
> |
*/ |
| 117 |
> |
private String _name = FilterMain.NAME; |
| 118 |
|
|
| 119 |
< |
final int packetSizeLimit = 8192; |
| 119 |
> |
/** |
| 120 |
> |
* This holds a reference to the |
| 121 |
> |
* system logger that is being used. |
| 122 |
> |
*/ |
| 123 |
> |
private Logger _logger = ReferenceManager.getInstance().getLogger(); |
| 124 |
> |
|
| 125 |
> |
/** |
| 126 |
> |
* The port that this reader is using |
| 127 |
> |
*/ |
| 128 |
> |
int _port; |
| 129 |
> |
|
| 130 |
> |
/** |
| 131 |
> |
* The Queue object |
| 132 |
> |
*/ |
| 133 |
> |
Queue _queue; |
| 134 |
|
|
| 135 |
|
//---STATIC ATTRIBUTES--- |
| 136 |
|
|
