org.archive.modules.fetcher

Class DefaultServerCache

java.lang.Object

org.archive.modules.net.ServerCache

org.archive.modules.fetcher.DefaultServerCache

All Implemented Interfaces:

Closeable, Serializable, AutoCloseable

Direct Known Subclasses:

BdbServerCache

public class DefaultServerCache
extends ServerCache
implements Closeable, Serializable

Server and Host cache.

Version:

$Date$, $Revision$

Author:

stack

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected ObjectIdentityCache<CrawlHost>	hosts hostname -> CrawlHost.
protected ObjectIdentityCache<CrawlServer>	servers hostname[:port] -> CrawlServer.

Constructor Summary

Constructors

Constructor and Description
DefaultServerCache() Constructor.
DefaultServerCache(ObjectIdentityCache<CrawlServer> servers, ObjectIdentityCache<CrawlHost> hosts)

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Called when shutting down the cache so we can do clean up.
boolean	containsHost(String hostKey)
boolean	containsServer(String serverKey)
void	forAllHostsDo(org.apache.commons.collections.Closure c) NOTE: Should not mutate the CrawlHost instance so retrieved; depending on the hostscache implementation, the change may not be reliably persistent.
CrawlHost	getHostFor(String hostname) Get the CrawlHost associated with name.
CrawlServer	getServerFor(String serverKey) Get the CrawlServer associated with name.
Set<String>	hostKeys()

Methods inherited from class org.archive.modules.net.ServerCache

getHostFor, getServerFor

Methods inherited from class java.lang.Object

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

Field Detail

servers

protected ObjectIdentityCache<CrawlServer> servers

hostname[:port] -> CrawlServer. Set in the initialization.

hosts

protected ObjectIdentityCache<CrawlHost> hosts

hostname -> CrawlHost. Set in the initialization.

Constructor Detail

DefaultServerCache

public DefaultServerCache()

Constructor.

DefaultServerCache

public DefaultServerCache(ObjectIdentityCache<CrawlServer> servers,
                  ObjectIdentityCache<CrawlHost> hosts)

Method Detail

getServerFor

public CrawlServer getServerFor(String serverKey)

Get the CrawlServer associated with name.

Specified by:

getServerFor in class ServerCache

Parameters:

serverKey - Server name we're to return server for.

Returns:

CrawlServer instance that matches the passed server name.

getHostFor

public CrawlHost getHostFor(String hostname)

Get the CrawlHost associated with name.

Specified by:

getHostFor in class ServerCache

Parameters:

hostname - Host name we're to return Host for.

Returns:

CrawlHost instance that matches the passed Host name.

containsServer

public boolean containsServer(String serverKey)

Parameters:

serverKey - Key to use doing lookup.

Returns:

True if a server instance exists.

containsHost

public boolean containsHost(String hostKey)

Parameters:

hostKey - Key to use doing lookup.

Returns:

True if a host instance exists.

close

public void close()

Called when shutting down the cache so we can do clean up.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

forAllHostsDo

public void forAllHostsDo(org.apache.commons.collections.Closure c)

NOTE: Should not mutate the CrawlHost instance so retrieved; depending on the hostscache implementation, the change may not be reliably persistent.

Specified by:

forAllHostsDo in class ServerCache

Parameters:

c - 1-argument Closure to apply to each CrawlHost

See Also:

ServerCache.forAllHostsDo(org.apache.commons.collections.Closure)

hostKeys

public Set<String> hostKeys()

Specified by:

hostKeys in class ServerCache