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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.coyote;
/**
* ActionCodes represent callbacks from the servlet container to the coyote
* connector. Actions are implemented by ProtocolHandler, using the ActionHook
* interface.
*
* @see ProtocolHandler
* @see ActionHook
* @author Remy Maucherat
*/
public enum ActionCode {
ACK,
CLOSE,
COMMIT,
/**
* A serious error occurred from which it is not possible to recover safely.
* Further attempts to write to the response should be ignored and the
* connection needs to be closed as soon as possible. This can also be used
* to forcibly close a connection if an error occurs after the response has
* been committed.
*/
CLOSE_NOW,
/**
* A flush() operation originated by the client ( i.e. a flush() on the
* servlet output stream or writer, called by a servlet ). Argument is the
* Response.
*/
CLIENT_FLUSH,
CUSTOM,
RESET,
/**
* Hook called after request, but before recycling. Can be used for logging,
* to update counters, custom cleanup - the request is still visible
*/
POST_REQUEST,
/**
* Has the processor been placed into the error state? Note that the
* response may not have an appropriate error code set.
*/
IS_ERROR,
/**
* Hook called if swallowing request input should be disabled.
* Example: Cancel a large file upload.
*
*/
DISABLE_SWALLOW_INPUT,
/**
* Callback for lazy evaluation - extract the remote host address.
*/
REQ_HOST_ATTRIBUTE,
/**
* Callback for lazy evaluation - extract the remote host infos (address,
* name, port) and local address.
*/
REQ_HOST_ADDR_ATTRIBUTE,
/**
* Callback for lazy evaluation - extract the SSL-related attributes.
*/
REQ_SSL_ATTRIBUTE,
/**
* Callback for lazy evaluation - extract the SSL-certificate (including
* forcing a re-handshake if necessary)
*/
REQ_SSL_CERTIFICATE,
/**
* Callback for lazy evaluation - socket remote port.
*/
REQ_REMOTEPORT_ATTRIBUTE,
/**
* Callback for lazy evaluation - socket local port.
*/
REQ_LOCALPORT_ATTRIBUTE,
/**
* Callback for lazy evaluation - local address.
*/
REQ_LOCAL_ADDR_ATTRIBUTE,
/**
* Callback for lazy evaluation - local address.
*/
REQ_LOCAL_NAME_ATTRIBUTE,
/**
* Callback for setting FORM auth body replay
*/
REQ_SET_BODY_REPLAY,
/**
* Callback for begin Comet processing.
*/
COMET_BEGIN,
/**
* Callback for end Comet processing.
*/
COMET_END,
/**
* Callback for getting the amount of available bytes.
*/
AVAILABLE,
/**
* Callback for an asynchronous close of the Comet event
*/
COMET_CLOSE,
/**
* Callback for setting the timeout asynchronously
*/
COMET_SETTIMEOUT,
/**
* Callback for an async request.
*/
ASYNC_START,
/**
* Callback for an async call to
* {@link javax.servlet.AsyncContext#dispatch()}.
*/
ASYNC_DISPATCH,
/**
* Callback to indicate the the actual dispatch has started and that the
* async state needs change.
*/
ASYNC_DISPATCHED,
/**
* Callback for an async call to
* {@link javax.servlet.AsyncContext#start(Runnable)}.
*/
ASYNC_RUN,
/**
* Callback for an async call to
* {@link javax.servlet.AsyncContext#complete()}.
*/
ASYNC_COMPLETE,
/**
* Callback to trigger the processing of an async timeout.
*/
ASYNC_TIMEOUT,
/**
* Callback to trigger the error processing.
*/
ASYNC_ERROR,
/**
* Callback for an async call to
* {@link javax.servlet.AsyncContext#setTimeout(long)}
*/
ASYNC_SETTIMEOUT,
/**
* Callback to determine if async processing is in progress.
*/
ASYNC_IS_ASYNC,
/**
* Callback to determine if async dispatch is in progress.
*/
ASYNC_IS_STARTED,
/**
* Call back to determine if async complete is in progress.
*/
ASYNC_IS_COMPLETING,
/**
* Callback to determine if async dispatch is in progress.
*/
ASYNC_IS_DISPATCHING,
/**
* Callback to determine if async is timing out.
*/
ASYNC_IS_TIMINGOUT,
/**
* Callback to determine if async is in error.
*/
ASYNC_IS_ERROR,
/**
* Callback to trigger Tomcat's proprietary HTTP upgrade process.
*/
UPGRADE_TOMCAT,
/**
* Callback to trigger post processing. Typically only used during error
* handling to trigger essential processing that otherwise would be skipped.
*/
ASYNC_POST_PROCESS,
/**
* Callback to trigger the Servlet 3.1 based HTTP upgrade process.
*/
UPGRADE,
/**
* Trigger end of request processing (remaining input swallowed, write any
* remaining parts of the response etc.).
*/
END_REQUEST
}
