| /* |
| * |
| * 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.security.GeneralSecurityException; |
| import java.util.ArrayList; |
| |
| import org.apache.bookkeeper.client.AsyncCallback.CreateCallback; |
| import org.apache.bookkeeper.client.BKException.BKNotEnoughBookiesException; |
| import org.apache.bookkeeper.client.BookKeeper.DigestType; |
| import org.apache.bookkeeper.meta.LedgerIdGenerator; |
| import org.apache.bookkeeper.net.BookieSocketAddress; |
| import org.apache.bookkeeper.proto.BookkeeperInternalCallbacks.GenericCallback; |
| import org.apache.bookkeeper.stats.OpStatsLogger; |
| import org.apache.bookkeeper.util.MathUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Encapsulates asynchronous ledger create operation |
| * |
| */ |
| class LedgerCreateOp implements GenericCallback<Void> { |
| |
| static final Logger LOG = LoggerFactory.getLogger(LedgerCreateOp.class); |
| |
| CreateCallback cb; |
| LedgerMetadata metadata; |
| LedgerHandle lh; |
| Long ledgerId; |
| Object ctx; |
| byte[] passwd; |
| BookKeeper bk; |
| DigestType digestType; |
| long startTime; |
| OpStatsLogger createOpLogger; |
| |
| /** |
| * Constructor |
| * |
| * @param bk |
| * BookKeeper object |
| * @param ensembleSize |
| * ensemble size |
| * @param writeQuorumSize |
| * write quorum size |
| * @param ackQuorumSize |
| * ack quorum size |
| * @param digestType |
| * digest type, either MAC or CRC32 |
| * @param passwd |
| * password |
| * @param cb |
| * callback implementation |
| * @param ctx |
| * optional control object |
| */ |
| |
| LedgerCreateOp(BookKeeper bk, int ensembleSize, |
| int writeQuorumSize, int ackQuorumSize, |
| DigestType digestType, |
| byte[] passwd, CreateCallback cb, Object ctx) { |
| this.bk = bk; |
| this.metadata = new LedgerMetadata(ensembleSize, writeQuorumSize, ackQuorumSize, digestType, passwd); |
| this.digestType = digestType; |
| this.passwd = passwd; |
| this.cb = cb; |
| this.ctx = ctx; |
| this.startTime = MathUtils.nowInNano(); |
| this.createOpLogger = bk.getCreateOpLogger(); |
| } |
| |
| /** |
| * Initiates the operation |
| */ |
| public void initiate() { |
| // allocate ensemble first |
| |
| /* |
| * Adding bookies to ledger handle |
| */ |
| |
| ArrayList<BookieSocketAddress> ensemble; |
| try { |
| ensemble = bk.bookieWatcher |
| .newEnsemble(metadata.getEnsembleSize(), metadata.getWriteQuorumSize()); |
| } catch (BKNotEnoughBookiesException e) { |
| LOG.error("Not enough bookies to create ledger"); |
| createComplete(e.getCode(), null); |
| return; |
| } |
| |
| /* |
| * Add ensemble to the configuration |
| */ |
| metadata.addEnsemble(0L, ensemble); |
| |
| createLedger(); |
| } |
| |
| void createLedger() { |
| // generate a ledger id and then create the ledger with metadata |
| final LedgerIdGenerator ledgerIdGenerator = bk.getLedgerIdGenerator(); |
| ledgerIdGenerator.generateLedgerId(new GenericCallback<Long>() { |
| @Override |
| public void operationComplete(int rc, Long ledgerId) { |
| if (BKException.Code.OK != rc) { |
| createComplete(rc, null); |
| return; |
| } |
| |
| LedgerCreateOp.this.ledgerId = ledgerId; |
| // create a ledger with metadata |
| bk.getLedgerManager().createLedgerMetadata(ledgerId, metadata, LedgerCreateOp.this); |
| } |
| }); |
| } |
| |
| /** |
| * Callback when created ledger. |
| */ |
| @Override |
| public void operationComplete(int rc, Void result) { |
| if (BKException.Code.LedgerExistException == rc) { |
| // retry to generate a new ledger id |
| createLedger(); |
| return; |
| } else if (BKException.Code.OK != rc) { |
| createComplete(rc, null); |
| return; |
| } |
| |
| try { |
| lh = new LedgerHandle(bk, ledgerId, metadata, digestType, passwd); |
| } catch (GeneralSecurityException e) { |
| LOG.error("Security exception while creating ledger: " + ledgerId, e); |
| createComplete(BKException.Code.DigestNotInitializedException, null); |
| return; |
| } catch (NumberFormatException e) { |
| LOG.error("Incorrectly entered parameter throttle: " + bk.getConf().getThrottleValue(), e); |
| createComplete(BKException.Code.IncorrectParameterException, null); |
| return; |
| } |
| // return the ledger handle back |
| createComplete(BKException.Code.OK, lh); |
| } |
| |
| private void createComplete(int rc, LedgerHandle lh) { |
| // Opened a new ledger |
| if (BKException.Code.OK != rc) { |
| createOpLogger.registerFailedEvent(MathUtils.elapsedMSec(startTime)); |
| } else { |
| createOpLogger.registerSuccessfulEvent(MathUtils.elapsedMSec(startTime)); |
| } |
| cb.createComplete(rc, lh, ctx); |
| } |
| |
| } |