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java.lang.Object
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+--sunlabs.brazil.session.SessionManager
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+--sunlabs.brazil.session.CacheManager
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+--sunlabs.brazil.session.PropertiesCacheManager
A version of the CacheManager that saves out any session state that is either a "java properties" object, or implements "Saveable" into a directory in the filesystem, one file per entry, then restores them on server startup. This is a "poor man's" serialization, that saves only ascii state represented in properties files. This permits a wider variety of changes to be made to the server code, yet still have the ability to read in the proper session information.
Classes that are not properties files may implement "Saveable", which has the store() and load() methods from Properties; they are expected to generate and restore the state of the object in Properties format.
This handler/sessionManager can take an ascii-readable "snapshot" of the server state, for all state that is a java properties object (or implements Saveable). It doesn't perturb the existing state.
Properties:
| Nested Class Summary | |
static interface |
PropertiesCacheManager.Saveable
This interface allows for persistence of non-properties session objects. |
| Constructor Summary | |
PropertiesCacheManager()
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| Method Summary | |
boolean |
init(Server server,
String prefix)
Initializes the handler. |
boolean |
respond(Request request)
Responds to an HTTP request. |
| Methods inherited from class sunlabs.brazil.session.CacheManager |
removeObj |
| Methods inherited from class sunlabs.brazil.session.SessionManager |
get, getSession, put, remove, setSessionManager |
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public PropertiesCacheManager()
| Method Detail |
public boolean init(Server server,
String prefix)
Handler
init in interface Handlerinit in class CacheManagerserver - The HTTP server that created this Handler.
Typical Handlers will use Server.props
to obtain run-time configuration information.prefix - The handlers name.
The string this Handler may prepend to all
of the keys that it uses to extract configuration information
from Server.props. This is set (by the Server
and ChainHandler) to help avoid configuration parameter
namespace collisions.
true if this Handler initialized
successfully, false otherwise. If
false is returned, this Handler
should not be used.public boolean respond(Request request)
Handler
respond in interface Handlerrespond in class CacheManagerrequest - The Request object that represents the HTTP
request.
true if the request was handled. A request was
handled if a response was supplied to the client, typically
by calling Request.sendResponse() or
Request.sendError.
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Version 2.1, Generated 12/30/04 Copyright (c) 2001-2004, Sun Microsystems. |
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