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## org.fourthline.cling.protocol.sync
Class ReceivingSubscribe

    java.lang.Object
      org.fourthline.cling.protocol.ReceivingAsync<IN>
          org.fourthline.cling.protocol.ReceivingSync<StreamRequestMessage,OutgoingSubscribeResponseMessage>
              org.fourthline.cling.protocol.sync.ReceivingSubscribe

All Implemented Interfaces:
  Runnable

    public class ReceivingSubscribe

extends ReceivingSync<StreamRequestMessage,OutgoingSubscribeResponseMessage>

Handles reception of GENA event subscription (initial and renewal) messages.

This protocol tries to find a local event subscription URI matching the requested URI, then creates a new `LocalGENASubscription` if no subscription identifer was supplied.

The subscription is however only registered with the local service, and monitoring of state changes is established, if the response of this protocol was successfully delivered to the client which requested the subscription.

Once registration and monitoring is active, an initial event with the current state of the service is send to the subscriber. This will only happen after the subscription response message was successfully delivered to the subscriber.

Author:
  Christian Bauer

Field Summary
`protected LocalGENASubscription` | `subscription`

Fields inherited from class org.fourthline.cling.protocol.ReceivingSync
`outputMessage, remoteClientInfo`

Constructor Summary
`ReceivingSubscribe(UpnpService upnpService, StreamRequestMessage inputMessage)`

Method Summary
`protected OutgoingSubscribeResponseMessage` | `executeSync()`
`protected OutgoingSubscribeResponseMessage` | `processNewSubscription(LocalService service, IncomingSubscribeRequestMessage requestMessage)`
`protected OutgoingSubscribeResponseMessage` | `processRenewal(LocalService service, IncomingSubscribeRequestMessage requestMessage)`
`void` | `responseException(Throwable t)` Called by the client of this protocol if the returned response was not delivered.
`void` | `responseSent(StreamResponseMessage responseMessage)` Called by the client of this protocol after the returned response has been successfully delivered.

Methods inherited from class org.fourthline.cling.protocol.ReceivingSync
`execute, getOutputMessage, getRemoteClientInfo, toString`

Methods inherited from class org.fourthline.cling.protocol.ReceivingAsync
`getFirstHeader, getInputMessage, getUpnpService, run, waitBeforeExecution`

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

Field Detail

### subscription

    protected LocalGENASubscription subscription

Constructor Detail

### ReceivingSubscribe

    public ReceivingSubscribe(UpnpService upnpService,
                              StreamRequestMessage inputMessage)

Method Detail

### executeSync

    protected OutgoingSubscribeResponseMessage executeSync()

  Specified by:
    `executeSync` in class `ReceivingSync<StreamRequestMessage,OutgoingSubscribeResponseMessage>`

### processRenewal

    protected OutgoingSubscribeResponseMessage processRenewal(LocalService service,
                                                              IncomingSubscribeRequestMessage requestMessage)

### processNewSubscription

    protected OutgoingSubscribeResponseMessage processNewSubscription(LocalService service,
                                                                      IncomingSubscribeRequestMessage requestMessage)

### responseSent

    public void responseSent(StreamResponseMessage responseMessage)

  Description copied from class: `ReceivingSync`
  Called by the client of this protocol after the returned response has been successfully delivered.

  NOOP by default.

  Overrides:
    `responseSent` in class `ReceivingSync<StreamRequestMessage,OutgoingSubscribeResponseMessage>`

### responseException

    public void responseException(Throwable t)

  Description copied from class: `ReceivingSync`
  Called by the client of this protocol if the returned response was not delivered.

  NOOP by default.

  Overrides:
    `responseException` in class `ReceivingSync<StreamRequestMessage,OutgoingSubscribeResponseMessage>`
  Parameters:
    `t` - The reason why the response wasn't delivered.

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Copyright © 2013 4th Line GmbH, Switzerland. All Rights Reserved.