pulsar-broker/src/main/java/com/yahoo/pulsar/broker/ManagedLedgerClientFactory.java

/**
 * Copyright 2016 Yahoo Inc.
 *
 * Licensed 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 com.yahoo.pulsar.broker;

import java.io.Closeable;
import java.io.IOException;

import org.apache.bookkeeper.client.BookKeeper;
import org.apache.bookkeeper.mledger.ManagedLedgerFactory;
import org.apache.bookkeeper.mledger.ManagedLedgerFactoryConfig;
import org.apache.bookkeeper.mledger.impl.ManagedLedgerFactoryImpl;
import org.apache.zookeeper.ZooKeeper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ManagedLedgerClientFactory implements Closeable {

    private static final Logger log = LoggerFactory.getLogger(ManagedLedgerClientFactory.class);

    private final ManagedLedgerFactory managedLedgerFactory;
    private final BookKeeper bkClient;

    public ManagedLedgerClientFactory(ServiceConfiguration conf, ZooKeeper zkClient,
            BookKeeperClientFactory bookkeeperProvider) throws Exception {
        this.bkClient = bookkeeperProvider.create(conf, zkClient);

        ManagedLedgerFactoryConfig managedLedgerFactoryConfig = new ManagedLedgerFactoryConfig();
        managedLedgerFactoryConfig.setMaxCacheSize(conf.getManagedLedgerCacheSizeMB() * 1024L * 1024L);
        managedLedgerFactoryConfig.setCacheEvictionWatermark(conf.getManagedLedgerCacheEvictionWatermark());

        this.managedLedgerFactory = new ManagedLedgerFactoryImpl(bkClient, zkClient, managedLedgerFactoryConfig);
    }

    public ManagedLedgerFactory getManagedLedgerFactory() {
        return managedLedgerFactory;
    }

    public void close() throws IOException {
        try {
            managedLedgerFactory.shutdown();
            log.info("Closed managed ledger factory");

            bkClient.close();
            log.info("Closed BookKeeper client");
        } catch (Exception e) {
            log.warn(e.getMessage(), e);
            throw new IOException(e);
        }
    }
}