org.vrspace.server.object
Class WebGate

java.lang.Object
  java.util.Observable
      org.vrspace.server.VRObject
          org.vrspace.server.DBObject
              org.vrspace.server.PublicDBObject
                  org.vrspace.server.OwnedDBObject
                      org.vrspace.server.object.File
                          org.vrspace.server.object.VrmlFile
                              org.vrspace.server.object.WebGate

All Implemented Interfaces:

java.lang.Cloneable, HasTransform, java.util.Observer, Owned

public class WebGate

extends VrmlFile

WebGate to another host. This object uses a dynamic web page server to handle the act of transferring a VRSpace user to another space.

Nested Class Summary

Nested classes inherited from class org.vrspace.server.object.VrmlFile

VrmlFile.ParsedUploadFilter

Nested classes inherited from class org.vrspace.server.object.File

File.GZippedUploadFilter, File.UploadFilter

Field Summary

java.lang.String	author Author of the target space.
boolean	autoCommit Not implemented.
java.lang.String	description Description of the target space.
java.lang.String	dynamicPageURL Absolute URL for the dynamic web page implementing the WebGate.
boolean	online Whether server behind this Gate is online.
java.lang.String	port Port on which the target space's server is listening. The distribution uses port 8500 by default.
boolean	remove Not implemented.
java.lang.String	screen URL of the image used to represent that the target space's server is online.
java.lang.String	vrmlFile The main vrml file of the target space.

Fields inherited from class org.vrspace.server.object.VrmlFile

transform

Fields inherited from class org.vrspace.server.object.File

_downloads, _lastUpdate, _uploads, name, ownerRole, publicRole, url

Fields inherited from class org.vrspace.server.DBObject

db

Fields inherited from class org.vrspace.server.VRObject

db_id, primitiveMap, primitives

Constructor Summary

WebGate()

Method Summary

void	set__enter(Request r, java.lang.String args) Handles a user's request to be transferred by the WebGate.

Methods inherited from class org.vrspace.server.object.VrmlFile

createTransform, getTransform, getTransformID, set__clone, set_download, set_upload, set_url, setTransform, update

Methods inherited from class org.vrspace.server.object.File

encodeAsURI, getClassAndId, grantAccess, processEvent, sendEvent, setValue

Methods inherited from class org.vrspace.server.OwnedDBObject

addOwner, isOwned, notifyOwners, ownershipRequired, removeOwner

Methods inherited from class org.vrspace.server.DBObject

delete, get, put, put

Methods inherited from class org.vrspace.server.VRObject

arrayToString, canRead, canWrite, clone, equals, fieldToText, fromString, fromText, getClassName, getField, getFields, getId, getID, getMemebers, hasField, hasMethod, isNew, newInstance, sendResponse, setField, setField, setField, setFields, setFields, stringToArray, toString, toText, toText, toText

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Field Detail

author

public java.lang.String author

Author of the target space.

description

public java.lang.String description

Description of the target space.

screen

public java.lang.String screen

URL of the image used to represent that the target space's server is online.

dynamicPageURL

public java.lang.String dynamicPageURL

Absolute URL for the dynamic web page implementing the WebGate. Given the standard distribution of VRSpace on www.foo.com, with a JSP Engine listening on port 8500, the url would be http://www.foo.com:8080/vrspace/vrspace.jsp.

For the purposes of testing the server, the default value for this variable is http://localhost:8080/vrspace/vrspace.jsp.

vrmlFile

public java.lang.String vrmlFile

The main vrml file of the target space. This URL is relative to the URL specified in dynamicPageURL.

The distribution comes with VRSpace.wrl as the main vrml file. If no value is set for this variable, VRSpace.wrl will be used.

port

public java.lang.String port

Port on which the target space's server is listening.

The distribution uses port 8500 by default. If no value is set for the variable, 8500 will be assumed.

online

public boolean online

Whether server behind this Gate is online. Set on last enter attemt, default: true

remove

public boolean remove

Not implemented. Whether ProxyDispatcher behind this Gate should remove cached objects from the local database. If true, objects are removed only if not observed. False means keep local copy of remote database persistent - refresh occurs whenever local Admin sees remote objects. Default: false

See Also:

ProxyDispatcher

autoCommit

public boolean autoCommit

Not implemented. Whether ProxyDispatcher should commit database after each Add/Remove. Default: true

See Also:

ProxyDispatcher, Remove, Add

Constructor Detail

WebGate

public WebGate()

Method Detail

set__enter

public void set__enter(Request r,
                       java.lang.String args)
                throws java.lang.Exception

Handles a user's request to be transferred by the WebGate. If any error occurs during transfer, the online variable for the gate is set to false and an exception is thrown. Otherwise, it is set to true.

Throws:

java.lang.Exception