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// **********************************************************************
//
// Copyright (c) 2003-present ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
namespace IceDiscovery
{
using System;
using System.Text;
public sealed class PluginFactory : Ice.PluginFactory
{
public Ice.Plugin
create(Ice.Communicator communicator, string name, string[] args)
{
return new PluginI(communicator);
}
}
public sealed class PluginI : Ice.Plugin
{
public
PluginI(Ice.Communicator communicator)
{
_communicator = communicator;
}
public void initialize()
{
Ice.Properties properties = _communicator.getProperties();
bool ipv4 = properties.getPropertyAsIntWithDefault("Ice.IPv4", 1) > 0;
bool preferIPv6 = properties.getPropertyAsInt("Ice.PreferIPv6Address") > 0;
string address;
if(ipv4 && !preferIPv6)
{
address = properties.getPropertyWithDefault("IceDiscovery.Address", "239.255.0.1");
}
else
{
address = properties.getPropertyWithDefault("IceDiscovery.Address", "ff15::1");
}
int port = properties.getPropertyAsIntWithDefault("IceDiscovery.Port", 4061);
string intf = properties.getProperty("IceDiscovery.Interface");
if(properties.getProperty("IceDiscovery.Multicast.Endpoints").Length == 0)
{
StringBuilder s = new StringBuilder();
s.Append("udp -h \"").Append(address).Append("\" -p ").Append(port);
if(intf.Length != 0)
{
s.Append(" --interface \"").Append(intf).Append("\"");
}
properties.setProperty("IceDiscovery.Multicast.Endpoints", s.ToString());
}
string lookupEndpoints = properties.getProperty("IceDiscovery.Lookup");
if(lookupEndpoints.Length == 0)
{
int protocol = ipv4 && !preferIPv6 ? IceInternal.Network.EnableIPv4 : IceInternal.Network.EnableIPv6;
var interfaces = IceInternal.Network.getInterfacesForMulticast(intf, protocol);
foreach(string p in interfaces)
{
if(p != interfaces[0])
{
lookupEndpoints += ":";
}
lookupEndpoints += "udp -h \"" + address + "\" -p " + port + " --interface \"" + p + "\"";
}
}
if(properties.getProperty("IceDiscovery.Reply.Endpoints").Length == 0)
{
properties.setProperty("IceDiscovery.Reply.Endpoints",
"udp -h " + (intf.Length == 0 ? "*" : "\"" + intf + "\""));
}
if(properties.getProperty("IceDiscovery.Locator.Endpoints").Length == 0)
{
properties.setProperty("IceDiscovery.Locator.AdapterId", Guid.NewGuid().ToString());
}
_multicastAdapter = _communicator.createObjectAdapter("IceDiscovery.Multicast");
_replyAdapter = _communicator.createObjectAdapter("IceDiscovery.Reply");
_locatorAdapter = _communicator.createObjectAdapter("IceDiscovery.Locator");
//
// Setup locatory registry.
//
LocatorRegistryI locatorRegistry = new LocatorRegistryI(_communicator);
Ice.LocatorRegistryPrx locatorRegistryPrx = Ice.LocatorRegistryPrxHelper.uncheckedCast(
_locatorAdapter.addWithUUID(locatorRegistry));
Ice.ObjectPrx lookupPrx = _communicator.stringToProxy("IceDiscovery/Lookup -d:" + lookupEndpoints);
// No colloc optimization or router for the multicast proxy!
lookupPrx = lookupPrx.ice_collocationOptimized(false).ice_router(null);
//
// Add lookup and lookup reply Ice objects
//
LookupI lookup = new LookupI(locatorRegistry, LookupPrxHelper.uncheckedCast(lookupPrx), properties);
_multicastAdapter.add(lookup, Ice.Util.stringToIdentity("IceDiscovery/Lookup"));
_replyAdapter.addDefaultServant(new LookupReplyI(lookup), "");
Ice.Identity id = new Ice.Identity("dummy", "");
lookup.setLookupReply(LookupReplyPrxHelper.uncheckedCast(_replyAdapter.createProxy(id).ice_datagram()));
//
// Setup locator on the communicator.
//
Ice.ObjectPrx loc;
loc = _locatorAdapter.addWithUUID(
new LocatorI(lookup, Ice.LocatorRegistryPrxHelper.uncheckedCast(locatorRegistryPrx)));
_defaultLocator = _communicator.getDefaultLocator();
_locator = Ice.LocatorPrxHelper.uncheckedCast(loc);
_communicator.setDefaultLocator(_locator);
_multicastAdapter.activate();
_replyAdapter.activate();
_locatorAdapter.activate();
}
public void destroy()
{
if(_multicastAdapter != null)
{
_multicastAdapter.destroy();
}
if(_replyAdapter != null)
{
_replyAdapter.destroy();
}
if(_locatorAdapter != null)
{
_locatorAdapter.destroy();
}
if(_communicator.getDefaultLocator().Equals(_locator))
{
// Restore original default locator proxy, if the user didn't change it in the meantime
_communicator.setDefaultLocator(_defaultLocator);
}
}
private Ice.Communicator _communicator;
private Ice.ObjectAdapter _multicastAdapter;
private Ice.ObjectAdapter _replyAdapter;
private Ice.ObjectAdapter _locatorAdapter;
private Ice.LocatorPrx _locator;
private Ice.LocatorPrx _defaultLocator;
}
public class Util
{
public static void
registerIceDiscovery(bool loadOnInitialize)
{
Ice.Util.registerPluginFactory("IceDiscovery", new PluginFactory(), loadOnInitialize);
}
}
}
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