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// **********************************************************************
//
// Copyright (c) 2003-2006 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 class FixedReference extends Reference
{
public
FixedReference(Instance inst,
Ice.Communicator com,
Ice.Identity ident,
java.util.Map ctx,
String fs,
int md,
Ice.ConnectionI[] fixedConns)
{
super(inst, com, ident, ctx, fs, md);
_fixedConnections = fixedConns;
}
public final Ice.ConnectionI[]
getFixedConnections()
{
return _fixedConnections;
}
public boolean
getSecure()
{
return false;
}
public String
getAdapterId()
{
return "";
}
public EndpointI[]
getEndpoints()
{
return new EndpointI[0];
}
public boolean
getCollocationOptimization()
{
return false;
}
public int
getLocatorCacheTimeout()
{
return 0;
}
public final boolean
getCacheConnection()
{
return false;
}
public final Ice.EndpointSelectionType
getEndpointSelection()
{
return Ice.EndpointSelectionType.Random;
}
public Reference
changeSecure(boolean sec)
{
return this;
}
public Reference
changeRouter(Ice.RouterPrx newRouter)
{
return this;
}
public Reference
changeLocator(Ice.LocatorPrx newLocator)
{
return this;
}
public Reference
changeCollocationOptimization(boolean newCollocationOptimization)
{
return this;
}
public Reference
changeAdapterId(String newAdapterId)
{
return this;
}
public Reference
changeEndpoints(EndpointI[] newEndpoints)
{
return this;
}
public Reference
changeLocatorCacheTimeout(int newTimeout)
{
return this;
}
public final Reference
changeCacheConnection(boolean newCache)
{
return this;
}
public final Reference
changeEndpointSelection(Ice.EndpointSelectionType newType)
{
return this;
}
public Reference
changeCompress(boolean newCompress)
{
// TODO: FixedReferences should probably have a _compress flag,
// that gets its default from the fixed connection this reference
// refers to. This should be changable with changeCompress().
return this;
}
public Reference
changeTimeout(int newTimeout)
{
return this;
}
public Reference
changeConnectionId(String connectionId)
{
return this;
}
public void
streamWrite(BasicStream s)
throws Ice.MarshalException
{
throw new Ice.MarshalException("Cannot marshal a fixed proxy");
}
public String
toString()
throws Ice.MarshalException
{
throw new Ice.MarshalException("Cannot marshal a fixed proxy");
}
public Ice.ConnectionI
getConnection(Ice.BooleanHolder compress)
{
Ice.ConnectionI[] filteredConns = filterConnections(_fixedConnections);
if(filteredConns.length == 0)
{
Ice.NoEndpointException ex = new Ice.NoEndpointException();
ex.proxy = ""; // No stringified representation for fixed proxies.
throw ex;
}
Ice.ConnectionI connection = filteredConns[0];
assert(connection != null);
connection.throwException(); // Throw in case our connection is already destroyed.
compress.value = connection.endpoint().compress();
return connection;
}
public boolean
equals(java.lang.Object obj)
{
if(this == obj)
{
return true;
}
if(!(obj instanceof FixedReference))
{
return false;
}
FixedReference rhs = (FixedReference)obj;
if(!super.equals(rhs))
{
return false;
}
return java.util.Arrays.equals(_fixedConnections, rhs._fixedConnections);
}
//
// Filter connections based on criteria from this reference.
//
private Ice.ConnectionI[]
filterConnections(Ice.ConnectionI[] allConnections)
{
java.util.ArrayList connections = new java.util.ArrayList(allConnections.length);
switch(getMode())
{
case Reference.ModeTwoway:
case Reference.ModeOneway:
case Reference.ModeBatchOneway:
{
//
// Filter out datagram connections.
//
for(int i = 0; i < allConnections.length; ++i)
{
if(!allConnections[i].endpoint().datagram())
{
connections.add(allConnections[i]);
}
}
break;
}
case Reference.ModeDatagram:
case Reference.ModeBatchDatagram:
{
//
// Filter out non-datagram connections.
//
for(int i = 0; i < allConnections.length; i++)
{
if(allConnections[i].endpoint().datagram())
{
connections.add(allConnections[i]);
}
}
break;
}
}
//
// Randomize the order of connections.
//
java.util.Collections.shuffle(connections);
//
// If a secure connection is requested, remove all non-secure
// endpoints. Otherwise make non-secure endpoints preferred over
// secure endpoints by partitioning the endpoint vector, so that
// non-secure endpoints come first.
//
if(getSecure())
{
java.util.Iterator i = connections.iterator();
while(i.hasNext())
{
Ice.ConnectionI connection = (Ice.ConnectionI)i.next();
if(!connection.endpoint().secure())
{
i.remove();
}
}
}
else
{
java.util.Collections.sort(connections, _connectionComparator);
}
Ice.ConnectionI[] arr = new Ice.ConnectionI[connections.size()];
connections.toArray(arr);
return arr;
}
static class ConnectionComparator implements java.util.Comparator
{
public int
compare(java.lang.Object l, java.lang.Object r)
{
Ice.ConnectionI lc = (Ice.ConnectionI)l;
Ice.ConnectionI rc = (Ice.ConnectionI)r;
boolean ls = lc.endpoint().secure();
boolean rs = rc.endpoint().secure();
if((ls && rs) || (!ls && !rs))
{
return 0;
}
else if(!ls && rs)
{
return -1;
}
else
{
return 1;
}
}
}
private static ConnectionComparator _connectionComparator = new ConnectionComparator();
private Ice.ConnectionI _fixedConnections[];
}
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