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 |
|
|