private static Properties adjustProperties(Properties pp) {
// A BackEndContainer is never a Main
pp.setProperty(Profile.MAIN, "false");
// Set default additional services if not already set
String services = pp.getProperty(Profile.SERVICES);
if (services == null) {
services = "jade.core.event.NotificationService";
}
String additionalServices = pp.getProperty(BEManagementService.ADDITIONAL_SERVICES);
if (additionalServices != null) {
services += ";" + additionalServices;
}
pp.setProperty(Profile.SERVICES, services);
// Merge back-end and front-end services
String feServices = pp.getProperty(MicroRuntime.BE_REQUIRED_SERVICES_KEY);
if (feServices != null) {
Vector ss = Specifier.parseList(pp.getProperty(Profile.SERVICES), ';');
Vector fess = Specifier.parseList(feServices, ';');
for (int i = 0; i < fess.size(); ++i) {
String s = (String) fess.get(i);
if (!ss.contains(s)) {
ss.add(s);
}
}
pp.setProperty(Profile.SERVICES, Specifier.encodeList(ss, Specifier.SPECIFIER_SEPARATOR));
}
return pp;
}
/** Initialize this JICPMediator */
public void init(JICPMediatorManager mgr, String id, Properties props) throws ICPException {
myMediatorManager = mgr;
myID = id;
myProperties = props;
// Max disconnection time
long maxDisconnectionTime = JICPProtocol.DEFAULT_MAX_DISCONNECTION_TIME;
try {
maxDisconnectionTime =
Long.parseLong(props.getProperty(JICPProtocol.MAX_DISCONNECTION_TIME_KEY));
} catch (Exception e) {
// Keep default
}
// Keep-alive time
keepAliveTime = JICPProtocol.DEFAULT_KEEP_ALIVE_TIME;
try {
keepAliveTime = Long.parseLong(props.getProperty(JICPProtocol.KEEP_ALIVE_TIME_KEY));
} catch (Exception e) {
// Keep default
}
// Server-keep-alive time
enableServerKeepAlive = false;
try {
enableServerKeepAlive =
Boolean.valueOf(props.getProperty("enable-server-keep-alive")).booleanValue();
} catch (Exception e) {
// Keep default
}
// inpCnt
int inpCnt = 0;
try {
inpCnt = (Integer.parseInt(props.getProperty("lastsid")) + 1) & 0x0f;
} catch (Exception e) {
// Keep default
}
System.out.println("Next command for FE will have sessionID " + inpCnt);
// lastSid
int lastSid = 0x0f;
try {
lastSid = (byte) (Integer.parseInt(props.getProperty("outcnt")) - 1);
if (lastSid < 0) {
lastSid = 0x0f;
}
} catch (Exception e) {
// Keep default
}
FrontEndStub st = new FrontEndStub(this);
inpManager = new InputManager(inpCnt, st);
BackEndSkel sk = startBackEndContainer(props);
outManager = new OutputManager(lastSid, sk, maxDisconnectionTime);
}
/** Create a BackEnd in the fixed network and return a stub to communicate with it */
public BackEnd getBackEnd(FrontEnd fe, Properties p) throws IMTPException {
props = p;
beAddrsText = props.getProperty(FrontEnd.REMOTE_BACK_END_ADDRESSES);
backEndAddresses = parseBackEndAddresses(beAddrsText);
// Host
String host = props.getProperty("host");
if (host == null) {
host = "localhost";
}
// Port
int port = JICPProtocol.DEFAULT_PORT;
try {
port = Integer.parseInt(props.getProperty("port"));
} catch (NumberFormatException nfe) {
// Use default
}
// Compose URL. Note that we build a JICPAddress just to avoid loading the HTTPAddress class.
mediatorTA = JICPProtocol.getInstance().buildAddress(host, String.valueOf(port), null, null);
// Mediator class
String tmp = props.getProperty(JICPProtocol.MEDIATOR_CLASS_KEY);
if (tmp != null) {
myMediatorClass = tmp;
} else {
// Set the default mediator class since this must be propagated to the mediator.
props.setProperty(JICPProtocol.MEDIATOR_CLASS_KEY, myMediatorClass);
}
// Read re-connection retry time
long retryTime = JICPProtocol.DEFAULT_RETRY_TIME;
try {
retryTime = Long.parseLong(props.getProperty(JICPProtocol.RECONNECTION_RETRY_TIME_KEY));
} catch (Exception e) {
// Use default
}
// Read Max disconnection time
maxDisconnectionTime = JICPProtocol.DEFAULT_MAX_DISCONNECTION_TIME;
try {
maxDisconnectionTime =
Long.parseLong(props.getProperty(JICPProtocol.MAX_DISCONNECTION_TIME_KEY));
} catch (Exception e) {
// Use default
props.setProperty(
JICPProtocol.MAX_DISCONNECTION_TIME_KEY, String.valueOf(maxDisconnectionTime));
}
// Read Keep-alive time
keepAliveTime = JICPProtocol.DEFAULT_KEEP_ALIVE_TIME;
try {
keepAliveTime = Long.parseLong(props.getProperty(JICPProtocol.KEEP_ALIVE_TIME_KEY));
} catch (Exception e) {
// Use default
props.setProperty(JICPProtocol.KEEP_ALIVE_TIME_KEY, String.valueOf(keepAliveTime));
}
if (myLogger.isLoggable(Logger.CONFIG)) {
myLogger.log(Logger.CONFIG, "Remote URL = http://" + host + ":" + port);
myLogger.log(Logger.CONFIG, "Mediator class = " + myMediatorClass);
myLogger.log(Logger.CONFIG, "Reconnection retry time = " + retryTime);
myLogger.log(Logger.CONFIG, "Max disconnection time = " + maxDisconnectionTime);
myLogger.log(Logger.CONFIG, "Keep-alive time = " + keepAliveTime);
}
myDisconnectionManager = new DisconnectionManager(retryTime, maxDisconnectionTime);
myKeepAliveManager = new KeepAliveManager(keepAliveTime);
myInputManager = new InputManager();
// Read the owner if any
owner = props.getProperty("owner");
// Create the BackEnd stub and the FrontEnd skeleton
myStub = new BackEndStub(this);
mySkel = new FrontEndSkel(fe);
// Start the InputManager
myInputManager.start();
// Create the remote BackEnd
createBackEnd();
return myStub;
}
/**
* Send the CREATE_MEDIATOR command with the necessary parameter in order to create the BackEnd in
* the fixed network. Executed - at bootstrap time by the thread that creates the
* FrontEndContainer. - To re-attach to the platform after a fault of the BackEnd
*/
private synchronized void createBackEnd() throws IMTPException {
StringBuffer sb = BackEndStub.encodeCreateMediatorRequest(props);
if (myMediatorID != null) {
// This is a request to re-create my expired back-end
BackEndStub.appendProp(sb, JICPProtocol.MEDIATOR_ID_KEY, myMediatorID);
BackEndStub.appendProp(sb, "outcnt", String.valueOf(outCnt));
BackEndStub.appendProp(sb, "lastsid", String.valueOf(lastSid));
}
JICPPacket pkt =
new JICPPacket(
JICPProtocol.CREATE_MEDIATOR_TYPE,
JICPProtocol.DEFAULT_INFO,
null,
sb.toString().getBytes());
// Try first with the current transport address, then with the various backup addresses
for (int i = -1; i < backEndAddresses.length; i++) {
if (i >= 0) {
// Set the mediator address to a new address..
String addr = backEndAddresses[i];
int colonPos = addr.indexOf(':');
String host = addr.substring(0, colonPos);
String port = addr.substring(colonPos + 1, addr.length());
mediatorTA = new JICPAddress(host, port, myMediatorID, "");
}
try {
HTTPClientConnection hc = (HTTPClientConnection) getConnection(mediatorTA);
myLogger.log(
Logger.INFO,
"Creating BackEnd on "
+ hc.getProtocol()
+ mediatorTA.getHost()
+ ":"
+ mediatorTA.getPort());
pkt = deliver(pkt);
String replyMsg = new String(pkt.getData());
if (pkt.getType() != JICPProtocol.ERROR_TYPE) {
// BackEnd creation successful
BackEndStub.parseCreateMediatorResponse(replyMsg, props);
myMediatorID = props.getProperty(JICPProtocol.MEDIATOR_ID_KEY);
// Complete the mediator address with the mediator ID
mediatorTA =
new JICPAddress(mediatorTA.getHost(), mediatorTA.getPort(), myMediatorID, null);
myDisconnectionManager.setReachable();
myKeepAliveManager.update();
myLogger.log(Logger.INFO, "BackEnd OK. Mediator ID is " + myMediatorID);
return;
} else {
myLogger.log(Logger.WARNING, "Mediator error: " + replyMsg);
}
} catch (IOException ioe) {
// Ignore it, and try the next address...
myLogger.log(Logger.WARNING, "Connection error", ioe);
}
}
// No address succeeded!
throw new IMTPException("Error creating the BackEnd.");
}
/**
* Searches for the user defined parameter with the specified key. The method returns <code>null
* </code> if the parameter is not found.
*
* @param key the parameter key.
* @return the value in this ACLMessage with the specified key value.
*/
public String getUserDefinedParameter(String key) {
if (userDefProps == null) return null;
else return userDefProps.getProperty(key);
}