| /* |
| * |
| * 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.bookie; |
| |
| import java.io.IOException; |
| |
| import org.apache.bookkeeper.bookie.LedgerStorage.LedgerDeletionListener; |
| import org.apache.bookkeeper.util.collections.ConcurrentLongHashMap; |
| |
| class HandleFactoryImpl implements HandleFactory, LedgerDeletionListener { |
| private final ConcurrentLongHashMap<LedgerDescriptor> ledgers; |
| private final ConcurrentLongHashMap<LedgerDescriptor> readOnlyLedgers; |
| |
| final LedgerStorage ledgerStorage; |
| |
| HandleFactoryImpl(LedgerStorage ledgerStorage) { |
| this.ledgerStorage = ledgerStorage; |
| this.ledgers = new ConcurrentLongHashMap<>(); |
| this.readOnlyLedgers = new ConcurrentLongHashMap<>(); |
| |
| ledgerStorage.registerLedgerDeletionListener(this); |
| } |
| |
| @Override |
| public LedgerDescriptor getHandle(final long ledgerId, final byte[] masterKey) throws IOException, BookieException { |
| LedgerDescriptor handle = ledgers.get(ledgerId); |
| |
| if (handle == null) { |
| handle = LedgerDescriptor.create(masterKey, ledgerId, ledgerStorage); |
| ledgers.putIfAbsent(ledgerId, handle); |
| } |
| |
| handle.checkAccess(masterKey); |
| return handle; |
| } |
| |
| @Override |
| public LedgerDescriptor getReadOnlyHandle(final long ledgerId) throws IOException, Bookie.NoLedgerException { |
| LedgerDescriptor handle = readOnlyLedgers.get(ledgerId); |
| |
| if (handle == null) { |
| handle = LedgerDescriptor.createReadOnly(ledgerId, ledgerStorage); |
| readOnlyLedgers.putIfAbsent(ledgerId, handle); |
| } |
| |
| return handle; |
| } |
| |
| @Override |
| public void ledgerDeleted(long ledgerId) { |
| ledgers.remove(ledgerId); |
| readOnlyLedgers.remove(ledgerId); |
| } |
| } |