SimpleSessionHandler (JAXRPC API) - JBoss 4.0.1 sp1 jaxrpc API Documentation 英文版文档

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org.apache.axis.handlers
Class SimpleSessionHandler

java.lang.Object
  org.apache.axis.handlers.BasicHandler
      org.apache.axis.handlers.SimpleSessionHandler

All Implemented Interfaces:: Handler, Serializable

public class SimpleSessionHandler
extends BasicHandler

This handler uses SOAP headers to do simple session management.

Essentially, you install it on both the request and response chains of your service, on both the client and the server side.

ON THE SERVER:

The REQUEST is checked for a session ID header. If present, we look up the correct SimpleSession. If not, we create a new session. In either case, we install the session into the MessageContext, and put its ID in the SESSION_ID property.
The RESPONSE gets a session ID header tacked on, assuming we found a SESSION_ID property in the MessageContext.

ON THE CLIENT:

The RESPONSE messages are checked for session ID headers. If present, we pull the ID out and insert it into an option in the AxisClient. This works because a given Call object is associated with a single AxisClient. However, we might want to find a way to put it into the Call object itself, which would make a little more sense. This would mean being able to get to the Call from the MC, i.e. adding a getCall() API (which would only work on the client side)....
When REQUESTS are generated, we look to see if an ID option is present in the AxisClient associated with the MessageContext. If so, we insert a session ID header with the appropriate ID.

SimpleSessions are "reaped" periodically via a very simplistic mechanism. Each time the handler is invoke()d we check to see if more than reapPeriodicity milliseconds have elapsed since the last reap. If so, we walk the collection of active Sessions, and for each one, if it hasn't been "touched" (i.e. had a getProperty() or setProperty() performed) in longer than its timeout, we remove it from the collection.

Author:: Glen Daniels (gdaniels@macromedia.com)
See Also:: Serialized Form

Field Summary

static String SESSION_ID


static String SESSION_LOCALPART


static String SESSION_NS


static javax.xml.namespace.QName sessionHeaderName


Fields inherited from class org.apache.axis.handlers.BasicHandler

makeLockable, name, options

Constructor Summary

SimpleSessionHandler()


Method Summary

void doClient(MessageContext context)
          Client side of processing.

void doServer(MessageContext context)
          Server side of processing.

void invoke(MessageContext context)
          Process a MessageContext.

void setDefaultSessionTimeout(int defaultSessionTimeout)
          Set the default session timeout in SECONDS
Again, for testing.

void setReapPeriodicity(long reapTime)
          Set the reaper periodicity in SECONDS
Convenience method for testing.

Methods inherited from class org.apache.axis.handlers.BasicHandler

canHandleBlock, cleanup, generateWSDL, getDeploymentData, getName, getOption, getOptions, getUnderstoodHeaders, init, initHashtable, onFault, setName, setOption, setOptionDefault, setOptions, setOptionsLockable

Methods inherited from class java.lang.Object

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

Field Detail

SESSION_ID

public static final String SESSION_ID

See Also:: Constant Field Values

SESSION_NS

public static final String SESSION_NS

See Also:: Constant Field Values

SESSION_LOCALPART

public static final String SESSION_LOCALPART

See Also:: Constant Field Values

sessionHeaderName

public static final javax.xml.namespace.QName sessionHeaderName

Constructor Detail