| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.bookkeeper.mledger.impl; |
| |
| import java.util.Map; |
| import java.util.UUID; |
| import java.util.concurrent.CompletableFuture; |
| import org.apache.bookkeeper.client.api.ReadHandle; |
| import org.apache.bookkeeper.mledger.LedgerOffloader; |
| import org.apache.pulsar.common.policies.data.OffloadPolicies; |
| |
| /** |
| * Null implementation that throws an error on any invokation. |
| */ |
| public class NullLedgerOffloader implements LedgerOffloader { |
| public static final NullLedgerOffloader INSTANCE = new NullLedgerOffloader(); |
| |
| @Override |
| public String getOffloadDriverName() { |
| return "NullLedgerOffloader"; |
| } |
| |
| @Override |
| public CompletableFuture<Void> offload(ReadHandle ledger, |
| UUID uid, |
| Map<String, String> extraMetadata) { |
| CompletableFuture<Void> promise = new CompletableFuture<>(); |
| promise.completeExceptionally(new UnsupportedOperationException()); |
| return promise; |
| } |
| |
| @Override |
| public CompletableFuture<ReadHandle> readOffloaded(long ledgerId, UUID uid, |
| Map<String, String> offloadDriverMetadata) { |
| CompletableFuture<ReadHandle> promise = new CompletableFuture<>(); |
| promise.completeExceptionally(new UnsupportedOperationException()); |
| return promise; |
| } |
| |
| @Override |
| public CompletableFuture<Void> deleteOffloaded(long ledgerId, UUID uid, |
| Map<String, String> offloadDriverMetadata) { |
| CompletableFuture<Void> promise = new CompletableFuture<>(); |
| promise.completeExceptionally(new UnsupportedOperationException()); |
| return promise; |
| } |
| |
| @Override |
| public OffloadPolicies getOffloadPolicies() { |
| return null; |
| } |
| |
| @Override |
| public void close() { |
| |
| } |
| } |