protected void initProperties(String propFileName) {
// Create instance of Class Properties
props = new Properties(System.getProperties());
// Try to load property list
try {
props.load(new BufferedInputStream(new FileInputStream(propFileName)));
} catch (IOException ex) {
ex.printStackTrace();
System.out.println("Exception in SpaceAccessor");
System.exit(-3);
}
// Output property list (can be ommitted - testing only)
System.out.println("jiniURL = " + props.getProperty("jiniURL"));
// Assign values to fields
jiniURL = props.getProperty("jiniURL");
}
public TransactionManagerAccessor(String propFileName) {
LookupLocator locator = null;
ServiceRegistrar registrar = null;
// Security manager
try {
System.setSecurityManager(new RMISecurityManager());
} catch (Exception e) {
e.printStackTrace();
}
// Get properties from property file
initProperties(propFileName);
try {
// Get lookup service locator at "jini://hostname"
// use default port and register of the locator
locator = new LookupLocator(jiniURL);
registrar = locator.getRegistrar();
// Space name provided in property file
ServiceTemplate template;
// Specify the service requirement, array (length 1) of
// instances of Class
Class[] types = new Class[] {TransactionManager.class};
template = new ServiceTemplate(null, types, null);
// Get manager, 10 attempts!
for (int i = 0; i < 10; i++) {
Object obj = registrar.lookup(template);
if (obj instanceof TransactionManager) {
manager = (TransactionManager) obj;
break;
}
System.out.println("BasicService. TransactionManager not " + "available. Trying again...");
Thread.sleep(MAX_LOOKUP_WAIT);
}
} catch (Exception e) {
e.printStackTrace();
}
}