/**
* 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.hadoop.hdfs.server.datanode;
import java.io.IOException;
import java.net.InetSocketAddress;
import org.apache.hadoop.hdfs.protocol.Block;
import org.apache.hadoop.hdfs.protocol.LocatedBlock;
import org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol;
import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration;
public abstract class NamespaceService implements Runnable, SyncBlock {
volatile long lastBeingAlive = 0;
abstract UpgradeManagerDatanode getUpgradeManager();
abstract DatanodeRegistration getNsRegistration();
abstract boolean isAlive();
abstract boolean initialized();
abstract void start();
abstract void join();
abstract void stop();
abstract void reportBadBlocks(LocatedBlock[] blocks) throws IOException;
abstract int getNamespaceId();
abstract String getNameserviceId();
abstract InetSocketAddress getNNSocketAddress();
abstract DatanodeProtocol getDatanodeProtocol();
abstract void notifyNamenodeReceivedBlock(Block block, String delHint);
abstract void notifyNamenodeDeletedBlock(Block block);
abstract void scheduleBlockReport(long delay);
abstract void scheduleBlockReceivedAndDeleted(long delay);
}