org.w3c.jigsaw.pics
Class PICSFilter
java.lang.Object
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+--org.w3c.tools.resources.AttributeHolder
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+--org.w3c.tools.resources.Resource
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+--org.w3c.tools.resources.FramedResource
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+--org.w3c.tools.resources.ResourceFrame
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+--org.w3c.tools.resources.ResourceFilter
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+--org.w3c.jigsaw.pics.PICSFilter
- All Implemented Interfaces:
- AttributeChangedListener, java.lang.Cloneable, java.util.EventListener, FilterInterface, FrameEventListener
- public class PICSFilter
- extends ResourceFilter
This package implements a PICS filter. The PICS filters allows server
administrator to rate the documents they deliver. The references for this
protocol is here.
The PICS filter defines the following attributes:
The list of parameters
Parameter name |
Semantics |
Default value |
Type |
bureau |
The label bureau to query for this entity labels. |
none |
java.lang.String |
Methods inherited from class org.w3c.tools.resources.ResourceFrame |
addFrameEventListener, attributeChanged, checkRequest, eventDisabled, fireFrameEvent, frameModified, getFilters, getFilters, getFrameReference, getResource, getResourceReference, getSpaceEntry, getURLPath, lookupFilters, lookupFrames, perform, postFrameEvent, processEvent, registerResource, removeFrameEventListener, setValue, unregisterResource, updateDefaultChildAttributes |
Methods inherited from class org.w3c.tools.resources.FramedResource |
addAttributeChangedListener, addStructureChangedListener, collectFramesReference, delete, disableEvent, displayEvent, enableEvent, fireAttributeChangeEvent, fireStructureChangedEvent, fireStructureChangedEvent, frameAdded, frameRemoved, getClone, getFrame, getFrame, getFrameReference, getFrameReference, getFramesReference, getOid, markModified, notifyUnload, performFrames, postAttributeChangeEvent, postEvent, postStructureChangedEvent, postStructureChangedEvent, registerFrame, registerFrameIfNone, removeAttributeChangedListener, removeStructureChangedListener, setSilentValue, setSilentValue, unregisterFrame |
Methods inherited from class org.w3c.tools.resources.Resource |
acceptUnload, checkMultipleLock, collectFrames, getContext, getFrame, getFrames, getHelpURL, getHelpURL, getIdentifier, getLastModified, getParent, getServer, getSpace, getStoreEntry, getValue, getValue, isInitialized, isUnloaded, setContext, setContext, setValue, unsafeGetContext, unsafeGetValue, updateAttributes |
Methods inherited from class org.w3c.tools.resources.AttributeHolder |
definesAttribute, definesAttribute, getAttributes, getBoolean, getChar, getClone, getClone, getDouble, getFloat, getInt, getLong, getString, getValue, lookupAttribute, print, setBoolean, setChar, setDouble, setFloat, setInt, setLong, setString, setValue |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ATTR_BUREAU_IDENTIFIER
protected static int ATTR_BUREAU_IDENTIFIER
- Attribute index - The identifier of our bureau.
bureau
protected LabelBureauInterface bureau
- Our loaded lable bureau.
PICSFilter
public PICSFilter()
getBureauIdentifier
public java.io.File getBureauIdentifier()
- Get our label bureau identifier.
acquireBureau
protected final void acquireBureau()
- Make sure our label bureau is loaded.
isPICSQuery
protected HttpBag isPICSQuery(Request request)
throws HTTPException
- Check the query to examine if it requires some PICS handling.
If this is the case, it returns a Bag object
corresponding to the part of the Accept-Protocol header that
relates with PICS.
- Parameters:
request
- The request to be checked.
- Returns:
- A Bag object if PICS handling required, null
otherwise.
- Throws:
HTTPException
- if processing the request failed.
outgoingFilter
public ReplyInterface outgoingFilter(RequestInterface req,
ReplyInterface rep)
throws HTTPException
- The outgoingFilter method.
This method is the one that gets called by Jigsaw core. By default it
will call the simpler
outgoingFilter
method that takes
only the request and the reply as parameters.
- Overrides:
outgoingFilter
in class ResourceFilter
- Parameters:
req
- The original request.rep
- It's original reply.
- Returns:
- A Reply instance, if that filter know how to complete the
request processing, or null if reminaing filters
are to be called by Jigsaw engine.
- Throws:
HTTPException
- If processing should be interrupted,
because an abnormal situation occured.
initialize
public void initialize(java.lang.Object[] values)
- Description copied from class:
FramedResource
- Initialize the frames of that framed resource.
- Overrides:
initialize
in class FramedResource
- Parameters:
values
- Default attribute values.