org.apache.nifi.distributed.cache.server

Class AbstractCacheServer

java.lang.Object

org.apache.nifi.distributed.cache.server.AbstractCacheServer

All Implemented Interfaces:

CacheServer

Direct Known Subclasses:

MapCacheServer, SetCacheServer

public abstract class AbstractCacheServer
extends Object
implements CacheServer

Field Summary

Fields

Modifier and Type	Field and Description
private String	identifier
private static org.slf4j.Logger	logger
private int	port
private Set<Thread>	processInputThreads
private ServerSocketChannel	serverSocketChannel
private SSLContext	sslContext
protected boolean	stopped

Constructor Summary

Constructors

Constructor and Description
AbstractCacheServer(String identifier, SSLContext sslContext, int port)

Method Summary

Modifier and Type	Method and Description
int	getPort()
protected abstract boolean	listen(InputStream in, OutputStream out, int version) Listens for incoming data and communicates with remote peer
void	start()
void	stop()
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

logger

private static final org.slf4j.Logger logger

identifier

private final String identifier

port

private final int port

sslContext

private final SSLContext sslContext

stopped

protected volatile boolean stopped

processInputThreads

private final Set<Thread> processInputThreads

serverSocketChannel

private volatile ServerSocketChannel serverSocketChannel

Constructor Detail

AbstractCacheServer

public AbstractCacheServer(String identifier,
                           SSLContext sslContext,
                           int port)

Method Detail

getPort

public int getPort()

Specified by:

getPort in interface CacheServer

start

public void start()
           throws IOException

Specified by:

start in interface CacheServer

Throws:

IOException

stop

public void stop()
          throws IOException

Specified by:

stop in interface CacheServer

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object

listen

protected abstract boolean listen(InputStream in,
                                  OutputStream out,
                                  int version)
                           throws IOException

Listens for incoming data and communicates with remote peer

Parameters:

in - in

out - out

version - version

Returns:

true if communications should continue, false otherwise

Throws:

IOException - ex