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/*
* TransportEvent.java October 2012
*
* Copyright (C) 2007, Niall Gallagher <niallg@users.sf.net>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package org.simpleframework.transport;
/**
* The <code>TransportEvent</code> enum represents various events that
* can occur with the transport. Events that are available here are
* typically those that refer to low level I/O operations within the
* server. If a <code>Trace</code> has been associated with the socket
* connection then it will receive these events as they occur.
*
* @author Niall Gallagher
*/
public enum TransportEvent {
/**
* This event represents a read operation on the underlying socket.
*/
READ,
/**
* This event occurs when there is no more data available to read.
*/
READ_WAIT,
/**
* This event represents a write operation on the underlying socket.
*/
WRITE,
/**
* This event represents a write buffer operation on the underlying socket.
*/
WRITE_BUFFER,
/**
* This event occurs when no more data can be sent over the socket.
*/
WRITE_WAIT,
/**
* This event occurs when a thread must wait for a write to finish.
*/
WRITE_BLOCKING,
/**
* This event occurs with HTTPS when a new SSL handshake starts.
*/
HANDSHAKE_BEGIN,
/**
* This event occurs with HTTPS when a SSL handshake has finished.
*/
HANDSHAKE_DONE,
/**
* This event occurs when a server challenges for an X509 certificate.
*/
CERTIFICATE_CHALLENGE,
/**
* This event indicates that the handshake failed in some way.
*/
HANDSHAKE_FAILED,
/**
* This event occurs when the underlying connection is terminated.
*/
CLOSE,
/**
* This event occurs when there is an error with the transport.
*/
ERROR
}
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