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

    java.lang.Object
      org.fourthline.cling.protocol.SendingAsync
          org.fourthline.cling.protocol.SendingSync<OutgoingSubscribeRequestMessage,IncomingSubscribeResponseMessage>
              org.fourthline.cling.protocol.sync.SendingSubscribe

All Implemented Interfaces:
  Runnable

    public class SendingSubscribe

extends SendingSync<OutgoingSubscribeRequestMessage,IncomingSubscribeResponseMessage>

Establishing a GENA event subscription with a remote host.

Calls the `RemoteGENASubscription.establish()` method if the subscription request was responded to correctly.

The `RemoteGENASubscription.fail(org.fourthline.cling.model.message.UpnpResponse)` method will be called if the request failed. No response from the remote host is indicated with a `null` argument value. Note that this is also the response if the subscription has to be aborted early, when no local stream server for callback URL creation is available. This is the case when the local network transport layer is switched off, subscriptions will fail immediately with no response.

Author:
  Christian Bauer

Field Summary
`protected RemoteGENASubscription` | `subscription`

Fields inherited from class org.fourthline.cling.protocol.SendingSync
`outputMessage`

Constructor Summary
`SendingSubscribe(UpnpService upnpService, RemoteGENASubscription subscription, List<NetworkAddress> activeStreamServers)`

Method Summary
`protected IncomingSubscribeResponseMessage` | `executeSync()`
`protected void` | `onSubscriptionFailure()`

Methods inherited from class org.fourthline.cling.protocol.SendingSync
`execute, getInputMessage, getOutputMessage, toString`

Methods inherited from class org.fourthline.cling.protocol.SendingAsync
`getUpnpService, run`

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

Field Detail

### subscription

    protected final RemoteGENASubscription subscription

Constructor Detail

### SendingSubscribe

    public SendingSubscribe(UpnpService upnpService,
                            RemoteGENASubscription subscription,
                            List<NetworkAddress> activeStreamServers)

Method Detail

### executeSync

    protected IncomingSubscribeResponseMessage executeSync()
                                                    throws RouterException

  Specified by:
    `executeSync` in class `SendingSync<OutgoingSubscribeRequestMessage,IncomingSubscribeResponseMessage>`
  Throws:
    `RouterException`

### onSubscriptionFailure

    protected void onSubscriptionFailure()

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