| 8 |
|
|
| 9 |
|
/** |
| 10 |
|
* A Filter Startup Class |
| 11 |
+ |
* A filter is an iscream component. |
| 12 |
|
* |
| 13 |
|
* @author $Author$ |
| 14 |
|
* @version $Id$ |
| 15 |
|
*/ |
| 16 |
< |
class FilterMain { |
| 16 |
> |
public class FilterMain implements uk.ac.ukc.iscream.util.Component { |
| 17 |
|
|
| 18 |
|
//---FINAL ATTRIBUTES--- |
| 19 |
|
|
| 24 |
|
|
| 25 |
|
//---STATIC METHODS--- |
| 26 |
|
|
| 27 |
< |
public static void main(String[] args) { |
| 28 |
< |
// *************************************** |
| 29 |
< |
// VERY TEMPORARY - will find a better way |
| 30 |
< |
System.setProperty("org.omg.CORBA.ORBClass","jacorb.orb.ORB"); |
| 31 |
< |
System.setProperty("org.omg.CORBA.ORBSingletonClass","jacorb.orb.ORBSingleton"); |
| 32 |
< |
// *************************************** |
| 27 |
> |
//---CONSTRUCTORS--- |
| 28 |
> |
|
| 29 |
> |
/** |
| 30 |
> |
* Constructs a Filter with the name given |
| 31 |
> |
* |
| 32 |
> |
* @param givenName the name |
| 33 |
> |
*/ |
| 34 |
> |
public FilterMain(String givenName) { |
| 35 |
> |
NAME = givenName; |
| 36 |
> |
} |
| 37 |
|
|
| 38 |
< |
// get our name from the command line |
| 39 |
< |
String ourName = ""; |
| 40 |
< |
if (args.length == 1) { |
| 41 |
< |
ourName = args[0]; |
| 42 |
< |
} |
| 43 |
< |
else { |
| 44 |
< |
usage(); |
| 45 |
< |
} |
| 41 |
< |
|
| 42 |
< |
// can't have a real toString() :) |
| 43 |
< |
String toString = "Filter{" + ourName + "}(" + REVISION.substring(11, REVISION.length() - 2) + ")"; |
| 44 |
< |
|
| 45 |
< |
ReferenceManager refman = ReferenceManager.init(null, ourName); |
| 46 |
< |
|
| 47 |
< |
refman.getLogger().write(toString, Logger.SYSINIT, "coming up"); |
| 38 |
> |
//---PUBLIC METHODS--- |
| 39 |
> |
|
| 40 |
> |
/** |
| 41 |
> |
* Starts the Filter component |
| 42 |
> |
*/ |
| 43 |
> |
public void start() throws ComponentStartException { |
| 44 |
> |
|
| 45 |
> |
_logger.write(toString(), Logger.SYSINIT, "coming up"); |
| 46 |
|
|
| 47 |
|
// configuration variables we require |
| 48 |
|
int UDPListenPort = 0; |
| 49 |
|
int TCPListenPort = 0; |
| 50 |
|
String parentFilterName = null; |
| 51 |
|
|
| 52 |
< |
Configuration config = refman.getCM().getConfiguration(refman.getName()); |
| 52 |
> |
Configuration config = _refman.getCM().getConfiguration(FilterMain.NAME); |
| 53 |
|
if (config == null) { |
| 54 |
< |
throw new RuntimeException ("CRITICAL:Unable to obtain configuration" + |
| 55 |
< |
" Advise you check the i-scream log for more information."); |
| 54 |
> |
System.err.println("CRITICAL:Unable to obtain configuration" + |
| 55 |
> |
"\n Advise you check the i-scream log for more information."); |
| 56 |
> |
_logger.write(toString(), Logger.FATAL, "ERROR - unable to obtain configuration"); |
| 57 |
> |
System.exit(1); |
| 58 |
|
} else { |
| 59 |
|
try { |
| 60 |
|
UDPListenPort = Integer.parseInt(config.getProperty("Filter.UDPListenPort")); |
| 61 |
|
TCPListenPort = Integer.parseInt(config.getProperty("Filter.TCPListenPort")); |
| 62 |
|
parentFilterName = config.getProperty("Filter.parentFilter"); |
| 63 |
|
} catch (org.omg.CORBA.MARSHAL e) { |
| 64 |
< |
refman.getLogger().write(toString, Logger.FATAL, "required config property not present"); |
| 65 |
< |
throw new RuntimeException ("CRITICAL:Unable to obtain required configuration property" + |
| 66 |
< |
" Advise you check the i-scream log for more information."); |
| 67 |
< |
|
| 64 |
> |
System.err.println ("CRITICAL:Unable to obtain required configuration property" + |
| 65 |
> |
"\n Advise you check the i-scream log for more information."); |
| 66 |
> |
_logger.write(toString(), Logger.FATAL, "ERROR - required configuration property not present"); |
| 67 |
> |
System.exit(1); |
| 68 |
|
} |
| 69 |
|
} |
| 70 |
< |
refman.getLogger().write(toString, Logger.SYSINIT, "configured"); |
| 70 |
> |
_logger.write(toString(), Logger.SYSINIT, "configured"); |
| 71 |
> |
|
| 72 |
|
// get parent |
| 73 |
< |
Filter parentFilter = FilterHelper.narrow(refman.getCORBARef("iscream.Filter." + parentFilterName)); |
| 73 |
> |
Filter parentFilter = FilterHelper.narrow(_refman.getCORBARef("iscream.Filter." + parentFilterName)); |
| 74 |
|
|
| 74 |
– |
|
| 75 |
– |
|
| 75 |
|
// FilterServant start (for inbound child filter data) |
| 76 |
< |
refman.getLogger().write(toString, Logger.DEBUG, "starting Filter Child -> Parent link for upstream parent - " + parentFilterName); |
| 76 |
> |
_logger.write(toString(), Logger.DEBUG, "starting Filter Child -> Parent link for upstream parent - " + parentFilterName); |
| 77 |
|
FilterServant filterServant = new FilterServant(parentFilter, TCPListenPort, UDPListenPort); |
| 78 |
< |
refman.bindToOrb(filterServant, "iscream.Filter." + refman.getName()); |
| 78 |
> |
_refman.bindToOrb(filterServant, "iscream.Filter." + FilterMain.NAME); |
| 79 |
|
|
| 80 |
|
// UDL Reader start (for inbound host data) |
| 81 |
< |
refman.getLogger().write(toString, Logger.SYSINIT, "starting Filter UDP listener"); |
| 81 |
> |
_logger.write(toString(), Logger.SYSINIT, "starting Filter UDP listener"); |
| 82 |
|
UDPReader udpReader = new UDPReader(UDPListenPort, parentFilter); |
| 83 |
|
udpReader.start(); |
| 84 |
|
|
| 85 |
|
// TCP Reader start (for heartbeats) |
| 86 |
< |
refman.getLogger().write(toString, Logger.SYSINIT, "starting Filter TCP listener"); |
| 86 |
> |
_logger.write(toString(), Logger.SYSINIT, "starting Filter TCP listener"); |
| 87 |
|
TCPReader tcpReader = new TCPReader(TCPListenPort, parentFilter); |
| 88 |
|
tcpReader.start(); |
| 89 |
|
|
| 90 |
< |
// start the POA off |
| 92 |
< |
// now we are running, we just need to serve |
| 93 |
< |
// so we ask the orb to block for us until it has finished |
| 94 |
< |
refman.activatePOA(); |
| 95 |
< |
refman.getLogger().write(toString, Logger.SYSINIT, "started"); |
| 96 |
< |
refman.getORB().run(); |
| 90 |
> |
_logger.write(toString(), Logger.SYSINIT, "started"); |
| 91 |
|
} |
| 92 |
|
|
| 93 |
< |
/** |
| 94 |
< |
* A simple method to print the usage of this class. |
| 95 |
< |
* It never returns, but instead exits to the system |
| 96 |
< |
* with a value 1, to indicate the system did not start |
| 97 |
< |
* properly. |
| 93 |
> |
/** |
| 94 |
> |
* Overrides the {@link java.lang.Object#toString() Object.toString()} |
| 95 |
> |
* method to provide clean logging (every class should have this). |
| 96 |
> |
* |
| 97 |
> |
* This uses the uk.ac.ukc.iscream.util.NameFormat class |
| 98 |
> |
* to format the toString() |
| 99 |
> |
* |
| 100 |
> |
* @return the name of this class and its CVS revision |
| 101 |
|
*/ |
| 102 |
< |
public static void usage() { |
| 103 |
< |
System.out.println("USAGE: java FilterMain <name>"); |
| 104 |
< |
System.out.println("WHERE <name>:"); |
| 105 |
< |
System.out.println(" The unique identifier for the Filter in the system."); |
| 106 |
< |
System.exit(1); |
| 102 |
> |
public String toString() { |
| 103 |
> |
return FormatName.getName( |
| 104 |
> |
NAME, |
| 105 |
> |
getClass().getName(), |
| 106 |
> |
REVISION); |
| 107 |
|
} |
| 108 |
|
|
| 112 |
– |
//---CONSTRUCTORS--- |
| 113 |
– |
|
| 114 |
– |
//---PUBLIC METHODS--- |
| 115 |
– |
|
| 109 |
|
//---PRIVATE METHODS--- |
| 110 |
|
|
| 111 |
|
//---ACCESSOR/MUTATOR METHODS--- |
| 112 |
|
|
| 113 |
|
//---ATTRIBUTES--- |
| 114 |
|
|
| 115 |
+ |
/** |
| 116 |
+ |
* This holds a reference to the |
| 117 |
+ |
* system logger that is being used. |
| 118 |
+ |
*/ |
| 119 |
+ |
private Logger _logger = ReferenceManager.getInstance().getLogger(); |
| 120 |
+ |
|
| 121 |
+ |
/** |
| 122 |
+ |
* A reference to the reference manager in use |
| 123 |
+ |
*/ |
| 124 |
+ |
private ReferenceManager _refman = ReferenceManager.getInstance(); |
| 125 |
+ |
|
| 126 |
|
//---STATIC ATTRIBUTES--- |
| 127 |
+ |
|
| 128 |
+ |
/** |
| 129 |
+ |
* The friendly name for this component, used by |
| 130 |
+ |
* all related classes. |
| 131 |
+ |
* This is set from the configuration. |
| 132 |
+ |
*/ |
| 133 |
+ |
public static String NAME; |
| 134 |
|
|
| 135 |
|
} |
