| /* |
| * |
| * 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.client; |
| |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.locks.ReentrantReadWriteLock; |
| |
| import org.apache.bookkeeper.client.AsyncCallback.DeleteCallback; |
| import org.apache.bookkeeper.client.SyncCallbackUtils.SyncDeleteCallback; |
| import org.apache.bookkeeper.client.api.DeleteBuilder; |
| import org.apache.bookkeeper.stats.OpStatsLogger; |
| import org.apache.bookkeeper.util.MathUtils; |
| import org.apache.bookkeeper.versioning.Version; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Encapsulates asynchronous ledger delete operation. |
| * |
| */ |
| class LedgerDeleteOp { |
| |
| static final Logger LOG = LoggerFactory.getLogger(LedgerDeleteOp.class); |
| |
| final BookKeeper bk; |
| final long ledgerId; |
| final DeleteCallback cb; |
| final Object ctx; |
| final long startTime; |
| final OpStatsLogger deleteOpLogger; |
| |
| /** |
| * Constructor. |
| * |
| * @param bk |
| * BookKeeper object |
| * @param ledgerId |
| * ledger Id |
| * @param cb |
| * callback implementation |
| * @param ctx |
| * optional control object |
| */ |
| LedgerDeleteOp(BookKeeper bk, BookKeeperClientStats clientStats, |
| long ledgerId, DeleteCallback cb, Object ctx) { |
| this.bk = bk; |
| this.ledgerId = ledgerId; |
| this.cb = cb; |
| this.ctx = ctx; |
| this.startTime = MathUtils.nowInNano(); |
| this.deleteOpLogger = clientStats.getDeleteOpLogger(); |
| } |
| |
| /** |
| * Initiates the operation. |
| */ |
| public void initiate() { |
| // Asynchronously delete the ledger from meta manager |
| // When this completes, it will invoke the callback method below. |
| bk.getLedgerManager().removeLedgerMetadata(ledgerId, Version.ANY) |
| .whenCompleteAsync((ignore, exception) -> { |
| if (exception != null) { |
| deleteOpLogger.registerFailedEvent(MathUtils.elapsedNanos(startTime), TimeUnit.NANOSECONDS); |
| } else { |
| deleteOpLogger.registerSuccessfulEvent(MathUtils.elapsedNanos(startTime), TimeUnit.NANOSECONDS); |
| } |
| cb.deleteComplete(BKException.getExceptionCode(exception), this.ctx); |
| }, bk.getMainWorkerPool().chooseThread(ledgerId)); |
| } |
| |
| @Override |
| public String toString() { |
| return String.format("LedgerDeleteOp(%d)", ledgerId); |
| } |
| |
| static class DeleteBuilderImpl implements DeleteBuilder { |
| |
| private Long builderLedgerId; |
| private final BookKeeper bk; |
| |
| DeleteBuilderImpl(BookKeeper bk) { |
| this.bk = bk; |
| } |
| |
| @Override |
| public DeleteBuilder withLedgerId(long ledgerId) { |
| this.builderLedgerId = ledgerId; |
| return this; |
| } |
| |
| @Override |
| public CompletableFuture<Void> execute() { |
| CompletableFuture<Void> future = new CompletableFuture<>(); |
| SyncDeleteCallback result = new SyncDeleteCallback(future); |
| delete(builderLedgerId, result); |
| return future; |
| } |
| |
| private boolean validate() { |
| if (builderLedgerId == null || builderLedgerId < 0) { |
| LOG.error("invalid ledgerId {} < 0", builderLedgerId); |
| return false; |
| } |
| return true; |
| } |
| |
| private void delete(Long ledgerId, AsyncCallback.DeleteCallback cb) { |
| if (!validate()) { |
| cb.deleteComplete(BKException.Code.IncorrectParameterException, null); |
| return; |
| } |
| LedgerDeleteOp op = new LedgerDeleteOp(bk, bk.getClientCtx().getClientStats(), ledgerId, cb, null); |
| ReentrantReadWriteLock closeLock = bk.getCloseLock(); |
| closeLock.readLock().lock(); |
| try { |
| if (bk.isClosed()) { |
| cb.deleteComplete(BKException.Code.ClientClosedException, null); |
| return; |
| } |
| op.initiate(); |
| } finally { |
| closeLock.readLock().unlock(); |
| } |
| } |
| } |
| |
| } |