Examples with ConfigurationNotificationEvent org.apache.ignite.configuration.notifications.ConfigurationNotificationEvent used on opensource projects

Example 1 with ConfigurationNotificationEvent

use of org.apache.ignite.configuration.notifications.ConfigurationNotificationEvent in project ignite-3 by apache.

the class TableManager method start.

/**
 * {@inheritDoc}
 */
@Override
public void start() {
    tablesCfg.tables().listenElements(new ConfigurationNamedListListener<>() {

        @Override
        public CompletableFuture<?> onCreate(ConfigurationNotificationEvent<TableView> ctx) {
            if (!busyLock.enterBusy()) {
                String tblName = ctx.newValue().name();
                UUID tblId = ((ExtendedTableView) ctx.newValue()).id();
                fireEvent(TableEvent.CREATE, new TableEventParameters(ctx.storageRevision(), tblId, tblName), new NodeStoppingException());
                return CompletableFuture.failedFuture(new NodeStoppingException());
            }
            try {
                onTableCreateInternal(ctx);
            } finally {
                busyLock.leaveBusy();
            }
            return CompletableFuture.completedFuture(null);
        }

        /**
         * Method for handle a table configuration event.
         *
         * @param ctx Configuration event.
         */
        private void onTableCreateInternal(ConfigurationNotificationEvent<TableView> ctx) {
            String tblName = ctx.newValue().name();
            UUID tblId = ((ExtendedTableView) ctx.newValue()).id();
            // configuration, which is not supported now.
            assert ((ExtendedTableView) ctx.newValue()).assignments() != null : IgniteStringFormatter.format("Table [id={}, name={}] has empty assignments.", tblId, tblName);
            // TODO: IGNITE-16369 Listener with any placeholder should be used instead.
            ((ExtendedTableConfiguration) tablesCfg.tables().get(tblName)).schemas().listenElements(new ConfigurationNamedListListener<>() {

                @Override
                public CompletableFuture<?> onCreate(ConfigurationNotificationEvent<SchemaView> schemasCtx) {
                    long causalityToken = schemasCtx.storageRevision();
                    if (!busyLock.enterBusy()) {
                        fireEvent(TableEvent.ALTER, new TableEventParameters(causalityToken, tblId, tblName), new NodeStoppingException());
                        return CompletableFuture.failedFuture(new NodeStoppingException());
                    }
                    try {
                        // FIXME: https://issues.apache.org/jira/browse/IGNITE-16369
                        if (ctx.storageRevision() != schemasCtx.storageRevision()) {
                            return tablesByIdVv.get(causalityToken).thenAccept(tablesById -> {
                                TableImpl table = tablesById.get(tblId);
                                ((SchemaRegistryImpl) table.schemaView()).onSchemaRegistered(SchemaSerializerImpl.INSTANCE.deserialize((schemasCtx.newValue().schema())));
                                fireEvent(TableEvent.ALTER, new TableEventParameters(causalityToken, table), null);
                            });
                        }
                        return CompletableFuture.completedFuture(null);
                    } catch (Exception e) {
                        fireEvent(TableEvent.ALTER, new TableEventParameters(causalityToken, tblId, tblName), e);
                        return CompletableFuture.failedFuture(e);
                    } finally {
                        busyLock.leaveBusy();
                    }
                }
            });
            ((ExtendedTableConfiguration) tablesCfg.tables().get(tblName)).assignments().listen(assignmentsCtx -> {
                if (!busyLock.enterBusy()) {
                    return CompletableFuture.failedFuture(new NodeStoppingException());
                }
                try {
                    // FIXME: https://issues.apache.org/jira/browse/IGNITE-16369
                    if (ctx.storageRevision() == assignmentsCtx.storageRevision()) {
                        return CompletableFuture.completedFuture(null);
                    } else {
                        return updateAssignmentInternal(assignmentsCtx.storageRevision(), tblId, assignmentsCtx);
                    }
                } finally {
                    busyLock.leaveBusy();
                }
            });
            createTableLocally(ctx.storageRevision(), tblName, tblId, (List<List<ClusterNode>>) ByteUtils.fromBytes(((ExtendedTableView) ctx.newValue()).assignments()), SchemaSerializerImpl.INSTANCE.deserialize(((ExtendedTableView) ctx.newValue()).schemas().get(String.valueOf(INITIAL_SCHEMA_VERSION)).schema()));
        }

        private CompletableFuture<?> updateAssignmentInternal(long causalityToken, UUID tblId, ConfigurationNotificationEvent<byte[]> assignmentsCtx) {
            List<List<ClusterNode>> oldAssignments = (List<List<ClusterNode>>) ByteUtils.fromBytes(assignmentsCtx.oldValue());
            List<List<ClusterNode>> newAssignments = (List<List<ClusterNode>>) ByteUtils.fromBytes(assignmentsCtx.newValue());
            CompletableFuture<?>[] futures = new CompletableFuture<?>[oldAssignments.size()];
            // TODO: be exact same amount of partitions and replicas for both old and new assignments
            for (int i = 0; i < oldAssignments.size(); i++) {
                int partId = i;
                List<ClusterNode> oldPartitionAssignment = oldAssignments.get(partId);
                List<ClusterNode> newPartitionAssignment = newAssignments.get(partId);
                var toAdd = new HashSet<>(newPartitionAssignment);
                toAdd.removeAll(oldPartitionAssignment);
                // Create new raft nodes according to new assignments.
                futures[i] = tablesByIdVv.get(causalityToken).thenCompose(tablesById -> {
                    InternalTable internalTable = tablesById.get(tblId).internalTable();
                    try {
                        return raftMgr.updateRaftGroup(raftGroupName(tblId, partId), newPartitionAssignment, toAdd, () -> new PartitionListener(tblId, new VersionedRowStore(internalTable.storage().getOrCreatePartition(partId), txManager))).thenAccept(updatedRaftGroupService -> ((InternalTableImpl) internalTable).updateInternalTableRaftGroupService(partId, updatedRaftGroupService)).exceptionally(th -> {
                            LOG.error("Failed to update raft groups one the node", th);
                            return null;
                        });
                    } catch (NodeStoppingException e) {
                        throw new AssertionError("Loza was stopped before Table manager", e);
                    }
                });
            }
            return CompletableFuture.allOf(futures);
        }

        @Override
        public CompletableFuture<?> onRename(String oldName, String newName, ConfigurationNotificationEvent<TableView> ctx) {
            return CompletableFuture.completedFuture(null);
        }

        @Override
        public CompletableFuture<?> onDelete(ConfigurationNotificationEvent<TableView> ctx) {
            if (!busyLock.enterBusy()) {
                String tblName = ctx.oldValue().name();
                UUID tblId = ((ExtendedTableView) ctx.oldValue()).id();
                fireEvent(TableEvent.DROP, new TableEventParameters(ctx.storageRevision(), tblId, tblName), new NodeStoppingException());
                return CompletableFuture.failedFuture(new NodeStoppingException());
            }
            try {
                dropTableLocally(ctx.storageRevision(), ctx.oldValue().name(), ((ExtendedTableView) ctx.oldValue()).id(), (List<List<ClusterNode>>) ByteUtils.fromBytes(((ExtendedTableView) ctx.oldValue()).assignments()));
            } finally {
                busyLock.leaveBusy();
            }
            return CompletableFuture.completedFuture(null);
        }
    });
    engine.start();
    DataRegion defaultDataRegion = engine.createDataRegion(dataStorageCfg.defaultRegion());
    dataRegions.put(DEFAULT_DATA_REGION_NAME, defaultDataRegion);
    defaultDataRegion.start();
}