OPENDJ-1271 (CR-3008) dsreplication pre-external-initialization task fails with STOPPED_BY_ERROR


Improved design for Replication Topology


ReplicationBroker.java + *Test.java:
Extracted the Topology class to encapsulate the dsList and replicationServerInfos fields + atomically set it via an AtomicReference + moved setLocallyConfiguredFlag(), isSameReplicationServerUrl(), computeConnectedDSs() to Topology class.
Created methods computeNewTopology() and topologyChange() to compute and set the new topology.
Removed generationID instance variable duplicated with the one from ReplicationDomain + updated ctor and setGenerationID().
Improved debugging messages.
Renamed getDsList() to getReplicaInfos() + changed return type from List<DSInfo> to Map<Integer, DSInfo>.
Renamed getRsList() to getRsInfos().
Extracted method toRSInfos().

ReplicationBrokerTest.java: ADDED
Added to test new ReplicationBroker.Topology class.


DSInfo.java:
Changed equals(Set<String>, Set<String>) to equals(Object, Object).
In toString(), hid the assured fields if assured replication is off.

RSInfo.java:
Renamed fields id and serverUrl to rsServerId and rsServerURL.
In toString(), relied on the compiler to generate the String.


TopologyMsg.java:
Renamed fields dsList and rsList to replicaInfos and rsInfos.
Renamed getDsList() to getReplicaInfos() + changed return type from List<DSInfo> to Map<Integer, DSInfo>.
Renamed getRsList() to getRsInfos().
Extracted methods readStrings() and writeStrings().
Code cleanup
Used javadocs


ReplicationDomain.java, replication*.properties:
Extracted class ECLIncludes to replace eclIncludesLock, eclIncludesByServer, eclIncludesAllServers, eclIncludesForDeletesByServer, eclIncludesForDeletesAllServers + moved setEclIncludes() implementation to this class + removed synchronized blocks from all the getters.
Added baseDN to ERR_INIT_NO_SUCCESS_START_FROM_SERVERS.
Inlined initializeRemote().
Removed unused initializeFromRemote().
Reduced methods visibility.
Renamed getReplicaList() to getReplicaInfos() + changed return type from List<DSInfo> to Map<Integer, DSInfo>.
Renamed getRsList() to getRsInfos().
In initializeRemote(), waitForRemoteEndOfInit(), isRemoteDSConnected() and getProtocolVersion(), simplified code.

*.java:
Consequence of the changes above.
Simplified code in a number of places, particularly in the tests.