StartServiceInfo(String service, String value, String[] serverArgs) {
name = service;
//
// Separate the entry point from the arguments.
//
int pos = IceUtilInternal.StringUtil.findFirstOf(value, " \t\n");
if (pos == -1) {
className = value;
args = new String[0];
} else {
className = value.substring(0, pos);
try {
args = IceUtilInternal.Options.split(value.substring(pos));
} catch (IceUtilInternal.Options.BadQuote ex) {
FailureException e = new FailureException();
e.reason =
"ServiceManager: invalid arguments for service `" + name + "':\n" + ex.toString();
throw e;
}
}
if (serverArgs.length > 0) {
java.util.List<String> l = new java.util.ArrayList<String>(java.util.Arrays.asList(args));
for (String arg : serverArgs) {
if (arg.startsWith("--" + service + ".")) {
l.add(arg);
}
}
args = l.toArray(args);
}
}
private synchronized void start(String service, String className, String[] args)
throws FailureException {
//
// Instantiate the class.
//
ServiceInfo info = new ServiceInfo();
info.name = service;
info.status = StatusStopped;
info.args = args;
try {
Class<?> c = IceInternal.Util.findClass(className, null);
if (c == null) {
FailureException e = new FailureException();
e.reason = "ServiceManager: class " + className + " not found";
throw e;
}
java.lang.Object obj = c.newInstance();
try {
info.service = (Service) obj;
} catch (ClassCastException ex) {
FailureException e = new FailureException();
e.reason = "ServiceManager: class " + className + " does not implement IceBox.Service";
throw e;
}
} catch (IllegalAccessException ex) {
FailureException e = new FailureException();
e.reason = "ServiceManager: unable to access default constructor in class " + className;
e.initCause(ex);
throw e;
} catch (InstantiationException ex) {
FailureException e = new FailureException();
e.reason = "ServiceManager: unable to instantiate class " + className;
e.initCause(ex);
throw e;
}
//
// Invoke Service::start().
//
try {
//
// If Ice.UseSharedCommunicator.<name> is defined, create a
// communicator for the service. The communicator inherits
// from the shared communicator properties. If it's not
// defined, add the service properties to the shared
// commnunicator property set.
//
Ice.Communicator communicator;
if (_communicator.getProperties().getPropertyAsInt("IceBox.UseSharedCommunicator." + service)
> 0) {
assert (_sharedCommunicator != null);
communicator = _sharedCommunicator;
} else {
//
// Create the service properties. We use the communicator properties as the default
// properties if IceBox.InheritProperties is set.
//
Ice.InitializationData initData = new Ice.InitializationData();
initData.properties = createServiceProperties(service);
Ice.StringSeqHolder serviceArgs = new Ice.StringSeqHolder(info.args);
if (serviceArgs.value.length > 0) {
//
// Create the service properties with the given service arguments. This should
// read the service config file if it's specified with --Ice.Config.
//
initData.properties = Ice.Util.createProperties(serviceArgs, initData.properties);
//
// Next, parse the service "<service>.*" command line options (the Ice command
// line options were parsed by the createProperties above)
//
serviceArgs.value =
initData.properties.parseCommandLineOptions(service, serviceArgs.value);
}
//
// Clone the logger to assign a new prefix.
//
initData.logger =
_logger.cloneWithPrefix(initData.properties.getProperty("Ice.ProgramName"));
//
// Remaining command line options are passed to the communicator. This is
// necessary for Ice plug-in properties (e.g.: IceSSL).
//
info.communicator = Ice.Util.initialize(serviceArgs, initData);
info.args = serviceArgs.value;
communicator = info.communicator;
}
try {
info.service.start(service, communicator, info.args);
info.status = StatusStarted;
//
// There is no need to notify the observers since the 'start all'
// (that indirectly calls this method) occurs before the creation of
// the Server Admin object, and before the activation of the main
// object adapter (so before any observer can be registered)
//
} catch (Throwable ex) {
if (info.communicator != null) {
try {
info.communicator.shutdown();
info.communicator.waitForShutdown();
} catch (Ice.CommunicatorDestroyedException e) {
//
// Ignore, the service might have already destroyed
// the communicator for its own reasons.
//
} catch (java.lang.Exception e) {
java.io.StringWriter sw = new java.io.StringWriter();
java.io.PrintWriter pw = new java.io.PrintWriter(sw);
e.printStackTrace(pw);
pw.flush();
_logger.warning(
"ServiceManager: exception in shutting down communicator for service "
+ service
+ "\n"
+ sw.toString());
}
try {
info.communicator.destroy();
} catch (java.lang.Exception e) {
java.io.StringWriter sw = new java.io.StringWriter();
java.io.PrintWriter pw = new java.io.PrintWriter(sw);
e.printStackTrace(pw);
pw.flush();
_logger.warning(
"ServiceManager: exception in destroying communciator for service"
+ service
+ "\n"
+ sw.toString());
}
}
throw ex;
}
_services.add(info);
} catch (FailureException ex) {
throw ex;
} catch (Throwable ex) {
FailureException e = new FailureException();
e.reason = "ServiceManager: exception while starting service " + service + ": " + ex;
e.initCause(ex);
throw e;
}
}
public int run() {
try {
Ice.Properties properties = _communicator.getProperties();
//
// Create an object adapter. Services probably should NOT share
// this object adapter, as the endpoint(s) for this object adapter
// will most likely need to be firewalled for security reasons.
//
Ice.ObjectAdapter adapter = null;
if (!properties.getProperty("IceBox.ServiceManager.Endpoints").equals("")) {
adapter = _communicator.createObjectAdapter("IceBox.ServiceManager");
Ice.Identity identity = new Ice.Identity();
identity.category = properties.getPropertyWithDefault("IceBox.InstanceName", "IceBox");
identity.name = "ServiceManager";
adapter.add(this, identity);
}
//
// Parse the property set with the prefix "IceBox.Service.". These
// properties should have the following format:
//
// IceBox.Service.Foo=Package.Foo [args]
//
// We parse the service properties specified in IceBox.LoadOrder
// first, then the ones from remaining services.
//
final String prefix = "IceBox.Service.";
java.util.Map<String, String> services = properties.getPropertiesForPrefix(prefix);
String[] loadOrder = properties.getPropertyAsList("IceBox.LoadOrder");
java.util.List<StartServiceInfo> servicesInfo = new java.util.ArrayList<StartServiceInfo>();
for (String name : loadOrder) {
if (name.length() > 0) {
String key = prefix + name;
String value = services.get(key);
if (value == null) {
FailureException ex = new FailureException();
ex.reason = "ServiceManager: no service definition for `" + name + "'";
throw ex;
}
servicesInfo.add(new StartServiceInfo(name, value, _argv));
services.remove(key);
}
}
for (java.util.Map.Entry<String, String> p : services.entrySet()) {
String name = p.getKey().substring(prefix.length());
String value = p.getValue();
servicesInfo.add(new StartServiceInfo(name, value, _argv));
}
//
// Check if some services are using the shared communicator in which
// case we create the shared communicator now with a property set which
// is the union of all the service properties (services which are using
// the shared communicator).
//
if (properties.getPropertiesForPrefix("IceBox.UseSharedCommunicator.").size() > 0) {
Ice.InitializationData initData = new Ice.InitializationData();
initData.properties = createServiceProperties("SharedCommunicator");
for (StartServiceInfo service : servicesInfo) {
if (properties.getPropertyAsInt("IceBox.UseSharedCommunicator." + service.name) <= 0) {
continue;
}
//
// Load the service properties using the shared communicator properties as
// the default properties.
//
Ice.StringSeqHolder serviceArgs = new Ice.StringSeqHolder(service.args);
Ice.Properties svcProperties =
Ice.Util.createProperties(serviceArgs, initData.properties);
service.args = serviceArgs.value;
//
// Erase properties from the shared communicator which don't exist in the
// service properties (which include the shared communicator properties
// overriden by the service properties).
//
java.util.Map<String, String> allProps = initData.properties.getPropertiesForPrefix("");
for (String key : allProps.keySet()) {
if (svcProperties.getProperty(key).length() == 0) {
initData.properties.setProperty(key, "");
}
}
//
// Add the service properties to the shared communicator properties.
//
for (java.util.Map.Entry<String, String> p :
svcProperties.getPropertiesForPrefix("").entrySet()) {
initData.properties.setProperty(p.getKey(), p.getValue());
}
//
// Parse <service>.* command line options (the Ice command line options
// were parsed by the createProperties above)
//
service.args = initData.properties.parseCommandLineOptions(service.name, service.args);
}
_sharedCommunicator = Ice.Util.initialize(initData);
}
for (StartServiceInfo s : servicesInfo) {
start(s.name, s.className, s.args);
}
//
// We may want to notify external scripts that the services
// have started. This is done by defining the property:
//
// IceBox.PrintServicesReady=bundleName
//
// Where bundleName is whatever you choose to call this set of
// services. It will be echoed back as "bundleName ready".
//
// This must be done after start() has been invoked on the
// services.
//
String bundleName = properties.getProperty("IceBox.PrintServicesReady");
if (bundleName.length() > 0) {
System.out.println(bundleName + " ready");
}
//
// Don't move after the adapter activation. This allows
// applications to wait for the service manager to be
// reachable before sending a signal to shutdown the
// IceBox.
//
Ice.Application.shutdownOnInterrupt();
//
// Register "this" as a facet to the Admin object and
// create Admin object
//
try {
_communicator.addAdminFacet(this, "IceBox.ServiceManager");
//
// Add a Properties facet for each service
//
for (ServiceInfo info : _services) {
Ice.Communicator communicator =
info.communicator != null ? info.communicator : _sharedCommunicator;
_communicator.addAdminFacet(
new PropertiesAdminI(communicator.getProperties()),
"IceBox.Service." + info.name + ".Properties");
}
_communicator.getAdmin();
} catch (Ice.ObjectAdapterDeactivatedException ex) {
//
// Expected if the communicator has been shutdown.
//
}
//
// Start request dispatching after we've started the services.
//
if (adapter != null) {
try {
adapter.activate();
} catch (Ice.ObjectAdapterDeactivatedException ex) {
//
// Expected if the communicator has been shutdown.
//
}
}
_communicator.waitForShutdown();
Ice.Application.defaultInterrupt();
//
// Invoke stop() on the services.
//
stopAll();
} catch (FailureException ex) {
java.io.StringWriter sw = new java.io.StringWriter();
java.io.PrintWriter pw = new java.io.PrintWriter(sw);
pw.println(ex.reason);
ex.printStackTrace(pw);
pw.flush();
_logger.error(sw.toString());
stopAll();
return 1;
} catch (Ice.LocalException ex) {
java.io.StringWriter sw = new java.io.StringWriter();
java.io.PrintWriter pw = new java.io.PrintWriter(sw);
ex.printStackTrace(pw);
pw.flush();
_logger.error("ServiceManager: " + ex + "\n" + sw.toString());
stopAll();
return 1;
} catch (java.lang.Exception ex) {
java.io.StringWriter sw = new java.io.StringWriter();
java.io.PrintWriter pw = new java.io.PrintWriter(sw);
ex.printStackTrace(pw);
pw.flush();
_logger.error("ServiceManager: unknown exception\n" + sw.toString());
stopAll();
return 1;
}
return 0;
}
