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// **********************************************************************
//
// Copyright (c) 2003-2007 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.
//
// **********************************************************************
package IceInternal;
public final class LocatorInfo
{
LocatorInfo(Ice.LocatorPrx locator, LocatorTable table)
{
_locator = locator;
_table = table;
}
synchronized public void
destroy()
{
_locatorRegistry = null;
_table.clear();
}
public boolean
equals(java.lang.Object obj)
{
if(this == obj)
{
return true;
}
if(obj instanceof LocatorInfo)
{
return _locator.equals(((LocatorInfo)obj)._locator);
}
return false;
}
public Ice.LocatorPrx
getLocator()
{
//
// No synchronization necessary, _locator is immutable.
//
return _locator;
}
public synchronized Ice.LocatorRegistryPrx
getLocatorRegistry()
{
if(_locatorRegistry == null) // Lazy initialization
{
_locatorRegistry = _locator.getRegistry();
//
// The locator registry can't be located.
//
_locatorRegistry = Ice.LocatorRegistryPrxHelper.uncheckedCast(_locatorRegistry.ice_locator(null));
}
return _locatorRegistry;
}
public EndpointI[]
getEndpoints(IndirectReference ref, int ttl, Ice.BooleanHolder cached)
{
EndpointI[] endpoints = null;
Ice.ObjectPrx object = null;
cached.value = true;
String adapterId = ref.getAdapterId();
Ice.Identity identity = ref.getIdentity();
try
{
if(adapterId.length() > 0)
{
endpoints = _table.getAdapterEndpoints(adapterId, ttl);
if(endpoints == null)
{
cached.value = false;
if(ref.getInstance().traceLevels().location >= 1)
{
StringBuffer s = new StringBuffer();
s.append("searching for adapter by id\n");
s.append("adapter = " + adapterId);
ref.getInstance().initializationData().logger.trace(
ref.getInstance().traceLevels().locationCat, s.toString());
}
//
// Search the adapter in the location service if we didn't
// find it in the cache.
//
object = _locator.findAdapterById(adapterId);
if(object != null)
{
endpoints = ((Ice.ObjectPrxHelperBase)object).__reference().getEndpoints();
if(endpoints.length > 0)
{
_table.addAdapterEndpoints(adapterId, endpoints);
}
}
}
}
else
{
boolean objectCached = true;
object = _table.getProxy(identity, ttl);
if(object == null)
{
objectCached = false;
if(ref.getInstance().traceLevels().location >= 1)
{
StringBuffer s = new StringBuffer();
s.append("searching for object by id\n");
s.append("object = " + ref.getInstance().identityToString(identity));
ref.getInstance().initializationData().logger.trace(
ref.getInstance().traceLevels().locationCat, s.toString());
}
object = _locator.findObjectById(identity);
}
boolean endpointsCached = true;
if(object != null)
{
Reference r = ((Ice.ObjectPrxHelperBase)object).__reference();
if(r instanceof DirectReference)
{
endpointsCached = false;
DirectReference odr = (DirectReference)r;
endpoints = odr.getEndpoints();
}
else
{
IndirectReference oir = (IndirectReference)r;
if(oir.getAdapterId().length() > 0)
{
Ice.BooleanHolder c = new Ice.BooleanHolder();
endpoints = getEndpoints(oir, ttl, c);
endpointsCached = c.value;
}
}
}
if(!objectCached && endpoints != null && endpoints.length > 0)
{
_table.addProxy(identity, object);
}
cached.value = objectCached || endpointsCached;
}
}
catch(Ice.AdapterNotFoundException ex)
{
if(ref.getInstance().traceLevels().location >= 1)
{
StringBuffer s = new StringBuffer();
s.append("adapter not found\n");
s.append("adapter = " + adapterId);
ref.getInstance().initializationData().logger.trace(
ref.getInstance().traceLevels().locationCat, s.toString());
}
Ice.NotRegisteredException e = new Ice.NotRegisteredException();
e.kindOfObject = "object adapter";
e.id = adapterId;
throw e;
}
catch(Ice.ObjectNotFoundException ex)
{
if(ref.getInstance().traceLevels().location >= 1)
{
StringBuffer s = new StringBuffer();
s.append("object not found\n");
s.append("object = " + ref.getInstance().identityToString(identity));
ref.getInstance().initializationData().logger.trace(
ref.getInstance().traceLevels().locationCat, s.toString());
}
Ice.NotRegisteredException e = new Ice.NotRegisteredException();
e.kindOfObject = "object";
e.id = ref.getInstance().identityToString(identity);
throw e;
}
catch(Ice.NotRegisteredException ex)
{
throw ex;
}
catch(Ice.LocalException ex)
{
if(ref.getInstance().traceLevels().location >= 1)
{
StringBuffer s = new StringBuffer();
s.append("couldn't contact the locator to retrieve adapter endpoints\n");
if(adapterId.length() > 0)
{
s.append("adapter = " + adapterId + "\n");
}
else
{
s.append("object = " + ref.getInstance().identityToString(identity) + "\n");
}
s.append("reason = " + ex);
ref.getInstance().initializationData().logger.trace(
ref.getInstance().traceLevels().locationCat, s.toString());
}
throw ex;
}
if(ref.getInstance().traceLevels().location >= 1)
{
if(endpoints != null && endpoints.length > 0)
{
if(cached.value)
{
trace("found endpoints in locator table", ref, endpoints);
}
else
{
trace("retrieved endpoints from locator, adding to locator table", ref, endpoints);
}
}
else
{
StringBuffer s = new StringBuffer();
s.append("no endpoints configured for ");
if(adapterId.length() > 0)
{
s.append("adapter\n");
s.append("adapter = " + adapterId + "\n");
}
else
{
s.append("object\n");
s.append("object = " + ref.getInstance().identityToString(identity) + "\n");
}
}
}
return endpoints == null ? new EndpointI[0] : endpoints;
}
public void
clearObjectCache(IndirectReference ref)
{
if(ref.getAdapterId().length() == 0)
{
Ice.ObjectPrx object = _table.removeProxy(ref.getIdentity());
if(object != null)
{
if(((Ice.ObjectPrxHelperBase)object).__reference() instanceof IndirectReference)
{
IndirectReference oir = (IndirectReference)((Ice.ObjectPrxHelperBase)object).__reference();
if(oir.getAdapterId().length() > 0)
{
clearCache(oir);
}
}
else
{
if(ref.getInstance().traceLevels().location >= 2)
{
trace("removed endpoints from locator table",
ref, ((Ice.ObjectPrxHelperBase)object).__reference().getEndpoints());
}
}
}
}
}
public void
clearCache(IndirectReference ref)
{
if(ref.getAdapterId().length() > 0)
{
EndpointI[] endpoints = _table.removeAdapterEndpoints(ref.getAdapterId());
if(endpoints != null && ref.getInstance().traceLevels().location >= 2)
{
trace("removed endpoints from locator table\n", ref, endpoints);
}
}
else
{
Ice.ObjectPrx object = _table.removeProxy(ref.getIdentity());
if(object != null)
{
if(((Ice.ObjectPrxHelperBase)object).__reference() instanceof IndirectReference)
{
IndirectReference oir = (IndirectReference)((Ice.ObjectPrxHelperBase)object).__reference();
if(oir.getAdapterId().length() > 0)
{
clearCache(oir);
}
}
else
{
if(ref.getInstance().traceLevels().location >= 2)
{
trace("removed endpoints from locator table",
ref, ((Ice.ObjectPrxHelperBase)object).__reference().getEndpoints());
}
}
}
}
}
private void
trace(String msg, IndirectReference ref, EndpointI[] endpoints)
{
StringBuffer s = new StringBuffer();
s.append(msg + "\n");
if(ref.getAdapterId().length() > 0)
{
s.append("adapter = " + ref.getAdapterId() + "\n");
}
else
{
s.append("object = " + ref.getInstance().identityToString(ref.getIdentity()) + "\n");
}
s.append("endpoints = ");
final int sz = endpoints.length;
for(int i = 0; i < sz; i++)
{
s.append(endpoints[i].toString());
if(i + 1 < sz)
s.append(":");
}
ref.getInstance().initializationData().logger.trace(ref.getInstance().traceLevels().locationCat, s.toString());
}
private final Ice.LocatorPrx _locator;
private Ice.LocatorRegistryPrx _locatorRegistry;
private final LocatorTable _table;
}
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