Examples with GetRaftGroupIdsOp com.hazelcast.cp.internal.raftop.metadata.GetRaftGroupIdsOp used on opensource projects

Example 1 with GetRaftGroupIdsOp

use of com.hazelcast.cp.internal.raftop.metadata.GetRaftGroupIdsOp in project hazelcast by hazelcast.

the class RaftInvocationManager method invokeGetMembersToCreateRaftGroup.

private void invokeGetMembersToCreateRaftGroup(String groupName, int groupSize, InternalCompletableFuture<RaftGroupId> resultFuture) {
    RaftGroupId metadataGroupId = raftService.getMetadataGroupId();
    InternalCompletableFuture<List<CPMemberInfo>> f1 = query(metadataGroupId, new GetActiveCPMembersOp(), LINEARIZABLE);
    InternalCompletableFuture<Collection<RaftGroupId>> f2 = query(metadataGroupId, new GetRaftGroupIdsOp(), LINEARIZABLE);
    f1.thenCombineAsync(f2, (cpMembers, groupIds) -> {
        if (cpMembers.size() < groupSize) {
            Exception e = new IllegalArgumentException("There are not enough active CP members to create CP group " + groupName + ". Active CP members: " + cpMembers.size() + ", Requested CP group size: " + groupSize);
            resultFuture.completeExceptionally(e);
            return null;
        }
        long groupIndex = generateRandomGroupIndex(groupIds);
        List<RaftEndpoint> groupEndpoints = generateRandomGroupMembers(cpMembers, groupSize);
        invokeCreateRaftGroup(groupName, groupSize, groupIndex, groupEndpoints, resultFuture);
        return null;
    }).exceptionally(t -> {
        resultFuture.completeExceptionally(t);
        return null;
    });
}