| /* |
| * |
| * 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.Arrays; |
| import java.util.concurrent.TimeUnit; |
| import java.security.GeneralSecurityException; |
| |
| import org.apache.bookkeeper.client.AsyncCallback.OpenCallback; |
| import org.apache.bookkeeper.client.AsyncCallback.ReadLastConfirmedCallback; |
| import org.apache.bookkeeper.client.BookKeeper.DigestType; |
| import org.apache.bookkeeper.proto.BookkeeperInternalCallbacks.GenericCallback; |
| import org.apache.bookkeeper.stats.OpStatsLogger; |
| import org.apache.bookkeeper.util.MathUtils; |
| import org.apache.bookkeeper.util.OrderedSafeExecutor.OrderedSafeGenericCallback; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Encapsulates the ledger open operation |
| * |
| */ |
| class LedgerOpenOp implements GenericCallback<LedgerMetadata> { |
| static final Logger LOG = LoggerFactory.getLogger(LedgerOpenOp.class); |
| |
| final BookKeeper bk; |
| final long ledgerId; |
| final OpenCallback cb; |
| final Object ctx; |
| LedgerHandle lh; |
| final byte[] passwd; |
| boolean doRecovery = true; |
| boolean administrativeOpen = false; |
| long startTime; |
| OpStatsLogger openOpLogger; |
| |
| final DigestType suggestedDigestType; |
| final boolean enableDigestAutodetection; |
| |
| /** |
| * Constructor. |
| * |
| * @param bk |
| * @param ledgerId |
| * @param digestType. Ignored if conf.getEnableDigestTypeAutodetection() is true |
| * @param passwd |
| * @param cb |
| * @param ctx |
| */ |
| public LedgerOpenOp(BookKeeper bk, long ledgerId, DigestType digestType, byte[] passwd, |
| OpenCallback cb, Object ctx) { |
| this.bk = bk; |
| this.ledgerId = ledgerId; |
| this.passwd = passwd; |
| this.cb = cb; |
| this.ctx = ctx; |
| this.enableDigestAutodetection = bk.conf.getEnableDigestTypeAutodetection(); |
| this.suggestedDigestType = digestType; |
| } |
| |
| public LedgerOpenOp(BookKeeper bk, long ledgerId, OpenCallback cb, Object ctx) { |
| this.bk = bk; |
| this.ledgerId = ledgerId; |
| this.cb = cb; |
| this.ctx = ctx; |
| |
| this.passwd = bk.getConf().getBookieRecoveryPasswd(); |
| this.administrativeOpen = true; |
| this.enableDigestAutodetection = false; |
| this.suggestedDigestType = bk.conf.getBookieRecoveryDigestType(); |
| } |
| |
| /** |
| * Inititates the ledger open operation |
| */ |
| public void initiate() { |
| startTime = MathUtils.nowInNano(); |
| |
| openOpLogger = bk.getOpenOpLogger(); |
| |
| /** |
| * Asynchronously read the ledger metadata node. |
| */ |
| bk.getLedgerManager().readLedgerMetadata(ledgerId, this); |
| } |
| |
| /** |
| * Inititates the ledger open operation without recovery |
| */ |
| public void initiateWithoutRecovery() { |
| this.doRecovery = false; |
| initiate(); |
| } |
| |
| /** |
| * Implements Open Ledger Callback. |
| */ |
| @Override |
| public void operationComplete(int rc, LedgerMetadata metadata) { |
| if (BKException.Code.OK != rc) { |
| // open ledger failed. |
| openComplete(rc, null); |
| return; |
| } |
| |
| final byte[] passwd; |
| DigestType digestType = enableDigestAutodetection |
| ? metadata.getDigestType() |
| : suggestedDigestType; |
| |
| /* For an administrative open, the default passwords |
| * are read from the configuration, but if the metadata |
| * already contains passwords, use these instead. */ |
| if (administrativeOpen && metadata.hasPassword()) { |
| passwd = metadata.getPassword(); |
| digestType = metadata.getDigestType(); |
| } else { |
| passwd = this.passwd; |
| |
| if (metadata.hasPassword()) { |
| if (!Arrays.equals(passwd, metadata.getPassword())) { |
| LOG.error("Provided passwd does not match that in metadata"); |
| openComplete(BKException.Code.UnauthorizedAccessException, null); |
| return; |
| } |
| if (digestType != metadata.getDigestType()) { |
| LOG.error("Provided digest does not match that in metadata"); |
| openComplete(BKException.Code.DigestMatchException, null); |
| return; |
| } |
| } |
| } |
| |
| // get the ledger metadata back |
| try { |
| lh = new ReadOnlyLedgerHandle(bk, ledgerId, metadata, digestType, passwd, !doRecovery); |
| } catch (GeneralSecurityException e) { |
| LOG.error("Security exception while opening ledger: " + ledgerId, e); |
| openComplete(BKException.Code.DigestNotInitializedException, null); |
| return; |
| } catch (NumberFormatException e) { |
| LOG.error("Incorrectly entered parameter throttle: " + bk.getConf().getThrottleValue(), e); |
| openComplete(BKException.Code.IncorrectParameterException, null); |
| return; |
| } |
| |
| if (metadata.isClosed()) { |
| // Ledger was closed properly |
| openComplete(BKException.Code.OK, lh); |
| return; |
| } |
| |
| if (doRecovery) { |
| lh.recover(new OrderedSafeGenericCallback<Void>(bk.mainWorkerPool, ledgerId) { |
| @Override |
| public void safeOperationComplete(int rc, Void result) { |
| if (rc == BKException.Code.OK) { |
| openComplete(BKException.Code.OK, lh); |
| } else if (rc == BKException.Code.UnauthorizedAccessException) { |
| openComplete(BKException.Code.UnauthorizedAccessException, null); |
| } else { |
| openComplete(bk.getReturnRc(BKException.Code.LedgerRecoveryException), null); |
| } |
| } |
| @Override |
| public String toString() { |
| return String.format("Recover(%d)", ledgerId); |
| } |
| }); |
| } else { |
| lh.asyncReadLastConfirmed(new ReadLastConfirmedCallback() { |
| @Override |
| public void readLastConfirmedComplete(int rc, |
| long lastConfirmed, Object ctx) { |
| if (rc != BKException.Code.OK) { |
| openComplete(bk.getReturnRc(BKException.Code.ReadException), null); |
| } else { |
| lh.lastAddConfirmed = lh.lastAddPushed = lastConfirmed; |
| openComplete(BKException.Code.OK, lh); |
| } |
| } |
| }, null); |
| |
| } |
| } |
| |
| void openComplete(int rc, LedgerHandle lh) { |
| if (BKException.Code.OK != rc) { |
| openOpLogger.registerFailedEvent(MathUtils.elapsedNanos(startTime), TimeUnit.NANOSECONDS); |
| } else { |
| openOpLogger.registerSuccessfulEvent(MathUtils.elapsedNanos(startTime), TimeUnit.NANOSECONDS); |
| } |
| cb.openComplete(rc, lh, ctx); |
| } |
| } |