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## org.jivesoftware.openfire.handler
Class IQHandler

    java.lang.Object
      org.jivesoftware.openfire.container.BasicModule
          org.jivesoftware.openfire.handler.IQHandler

All Implemented Interfaces:
  ChannelHandler, Module

Direct Known Subclasses:
  AdHocCommandHandler, IQAuthHandler, IQBindHandler, IQDiscoInfoHandler, IQDiscoItemsHandler, IQLastActivityHandler, IQOfflineMessagesHandler, IQPEPHandler, IQPEPOwnerHandler, IQPingHandler, IQPrivacyHandler, IQPrivateHandler, IQRegisterHandler, IQRosterHandler, IQSessionEstablishmentHandler, IQSharedGroupHandler, IQTimeHandler, IQvCardHandler, IQVersionHandler

    public abstract class IQHandler

extends BasicModule
implements ChannelHandler

Base class whose main responsibility is to handle IQ packets. Subclasses may only need to specify the IQHandlerInfo (i.e. name and namespace of the packets to handle) and actually handle the IQ packet. Simplifies creation of simple TYPE_IQ message handlers.

Author:
  Gaston Dombiak

Field Summary
`protected PacketDeliverer` | `deliverer`
`protected SessionManager` | `sessionManager`

Constructor Summary
`IQHandler(String moduleName)` Create a basic module with the given name.

Method Summary
`abstract IQHandlerInfo` | `getInfo()` Returns the handler information to help generically handle IQ packets.
`abstract org.xmpp.packet.IQ` | `handleIQ(org.xmpp.packet.IQ packet)` Handles the received IQ packet.
`void` | `initialize(XMPPServer server)` Initializes the basic module.
`void` | `process(org.xmpp.packet.Packet packet)` Process an XMPP packet.

Methods inherited from class org.jivesoftware.openfire.container.BasicModule
`destroy, getName, start, stop`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### deliverer

    protected PacketDeliverer deliverer

### sessionManager

    protected SessionManager sessionManager

Constructor Detail

### IQHandler

    public IQHandler(String moduleName)

  Create a basic module with the given name.

  Parameters:
    `moduleName` - The name for the module or null to use the default

Method Detail

### process

    public void process(org.xmpp.packet.Packet packet)
                 throws PacketException

  Description copied from interface: `ChannelHandler`
  Process an XMPP packet.

  Specified by:
    `process` in interface `ChannelHandler`
  Parameters:
    `packet` - a packet to process.
  Throws:
    `PacketException` - thrown if the packet is malformed (results in the sender's session being shutdown).

### handleIQ

    public abstract org.xmpp.packet.IQ handleIQ(org.xmpp.packet.IQ packet)
                                         throws UnauthorizedException

  Handles the received IQ packet.

  Parameters:
    `packet` - the IQ packet to handle.
  Returns:
    the response to send back.
  Throws:
    `UnauthorizedException` - if the user that sent the packet is not authorized to request the given operation.

### getInfo

    public abstract IQHandlerInfo getInfo()

  Returns the handler information to help generically handle IQ packets. IQHandlers that aren't local server iq handlers (e.g. chatbots, transports, etc) return `null`.

  Returns:
    The IQHandlerInfo for this handler

### initialize

    public void initialize(XMPPServer server)

  Description copied from class: `BasicModule`

  Initializes the basic module.

  Inheriting classes that choose to override this method MUST call this initialize() method before accessing BasicModule resources.

  Specified by:
    `initialize` in interface `Module`
  Overrides:
    `initialize` in class `BasicModule`
  Parameters:
    `server` - the server hosting this module.

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