Examples with CheckedBiConsumer org.apache.ratis.util.function.CheckedBiConsumer used on opensource projects

Example 1 with CheckedBiConsumer

use of org.apache.ratis.util.function.CheckedBiConsumer in project incubator-ratis by apache.

the class GroupManagementBaseTest method runMultiGroupTest.

public static <T extends Throwable> void runMultiGroupTest(MiniRaftCluster cluster, int[] idIndex, int chosen, CheckedBiConsumer<MiniRaftCluster, RaftGroup, T> checker) throws IOException, InterruptedException, T {
    if (chosen < 0) {
        chosen = ThreadLocalRandom.current().nextInt(idIndex.length);
    }
    final String type = JavaUtils.getClassSimpleName(cluster.getClass()) + Arrays.toString(idIndex) + "chosen=" + chosen;
    LOG.info("\n\nrunMultiGroupTest with " + type + ": " + cluster.printServers());
    // Start server with an empty conf
    final RaftGroup emptyGroup = RaftGroup.valueOf(cluster.getGroupId());
    final List<RaftPeerId> ids = Arrays.stream(MiniRaftCluster.generateIds(idIndex[idIndex.length - 1], 0)).map(RaftPeerId::valueOf).collect(Collectors.toList());
    LOG.info("ids: " + ids);
    ids.forEach(id -> cluster.putNewServer(id, emptyGroup, true));
    LOG.info("putNewServer: " + cluster.printServers());
    TimeUnit.SECONDS.sleep(1);
    cluster.start();
    // Make sure that there are no leaders.
    TimeUnit.SECONDS.sleep(1);
    LOG.info("start: " + cluster.printServers());
    Assert.assertNull(cluster.getLeader());
    // Reinitialize servers to three groups
    final List<RaftPeer> allPeers = cluster.getPeers();
    Collections.sort(allPeers, Comparator.comparing(p -> p.getId().toString()));
    final RaftGroup[] groups = new RaftGroup[idIndex.length];
    for (int i = 0; i < idIndex.length; i++) {
        final RaftGroupId gid = RaftGroupId.randomId();
        final int previous = i == 0 ? 0 : idIndex[i - 1];
        final RaftPeer[] peers = allPeers.subList(previous, idIndex[i]).toArray(RaftPeer.emptyArray());
        groups[i] = RaftGroup.valueOf(gid, peers);
        LOG.info(i + ") starting " + groups[i]);
        for (RaftPeer p : peers) {
            try (final RaftClient client = cluster.createClient(p.getId(), emptyGroup)) {
                client.getGroupManagementApi(p.getId()).add(groups[i]);
            }
        }
        Assert.assertNotNull(RaftTestUtil.waitForLeader(cluster, gid));
        checker.accept(cluster, groups[i]);
    }
    printThreadCount(type, "start groups");
    LOG.info("start groups: " + cluster.printServers());
    // randomly remove two of the groups
    LOG.info("chosen = " + chosen + ", " + groups[chosen]);
    for (int i = 0; i < groups.length; i++) {
        if (i != chosen) {
            final RaftGroup g = groups[i];
            LOG.info(i + ") close " + cluster.printServers(g.getGroupId()));
            for (RaftPeer p : g.getPeers()) {
                final RaftServer.Division d = cluster.getDivision(p.getId(), g.getGroupId());
                final File root = d.getRaftStorage().getStorageDir().getRoot();
                Assert.assertTrue(root.exists());
                Assert.assertTrue(root.isDirectory());
                final RaftClientReply r;
                try (final RaftClient client = cluster.createClient(p.getId(), g)) {
                    r = client.getGroupManagementApi(p.getId()).remove(g.getGroupId(), true, false);
                }
                Assert.assertTrue(r.isSuccess());
                Assert.assertFalse(root.exists());
            }
        }
    }
    printThreadCount(type, "close groups");
    LOG.info("close groups: " + cluster.printServers());
    // update chosen group to use all the peers
    final RaftGroup newGroup = RaftGroup.valueOf(groups[chosen].getGroupId());
    for (int i = 0; i < groups.length; i++) {
        if (i != chosen) {
            LOG.info(i + ") groupAdd: " + cluster.printServers(groups[i].getGroupId()));
            for (RaftPeer p : groups[i].getPeers()) {
                try (final RaftClient client = cluster.createClient(p.getId(), groups[i])) {
                    client.getGroupManagementApi(p.getId()).add(newGroup);
                }
            }
        }
    }
    LOG.info(chosen + ") setConfiguration: " + cluster.printServers(groups[chosen].getGroupId()));
    try (final RaftClient client = cluster.createClient(groups[chosen])) {
        client.admin().setConfiguration(allPeers.toArray(RaftPeer.emptyArray()));
    }
    Assert.assertNotNull(RaftTestUtil.waitForLeader(cluster));
    checker.accept(cluster, groups[chosen]);
    LOG.info("update groups: " + cluster.printServers());
    printThreadCount(type, "update groups");
    cluster.shutdown();
    printThreadCount(type, "shutdown");
}