com.sun.grizzly.arp.AsyncExecutor Maven / Gradle / Ivy
/*
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2007-2008 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*
*/
package com.sun.grizzly.arp;
import com.sun.grizzly.http.ProcessorTask;
/**
* A interface used to define the execution of a {@link AsyncTask}
* By default, {@link AsyncTask} will invoke an implementation
* of this interface in this order:
*
* (1) preExecute()
* (2) interrupt()
* (3) postExecute()
*
* Implementation of this interface must decide when a task must be interrupted.
*
* @author Jeanfrancois Arcand
*/
public interface AsyncExecutor {
/**
* Pre-execute some http request operation like decoding the headers.
* @return true if the processing can continue.
*/
public boolean preExecute() throws Exception;
/**
* Interrupt the current request processing. To resume, just invoke
* the {@link #execute}
* @return true if the processing can continue, false if it needs to be
* interrupted.
*/
public boolean interrupt() throws Exception;
/**
* Execute the defined {@link Adapter} or {@link GrizzlyAdapter}
* @return true if the processing can continue, false if it needs to be
* interrupted.
*/
public boolean execute() throws Exception;
/**
* Commit the http response.
* @return true if the processing can continue.
*/
public boolean postExecute() throws Exception;
/**
* Set the {@link AsyncProcesssorTask}.
*/
public void setAsyncTask(AsyncTask task);
/**
* Get the {@link AsyncProcesssorTask}.
*/
public AsyncTask getAsyncTask();
/**
* Add a {@link AsyncFilter}
*/
public void addAsyncFilter(AsyncFilter asyncFilter);
/**
* Remove an {@link AsyncFilter}
*/
public boolean removeAsyncFilter(AsyncFilter asyncFilter);
/**
* Get the {@link AsyncHandler} who drive the asynchronous process.
*/
public AsyncHandler getAsyncHandler();
/**
* Set the {@link AsyncHandler} who drive the asynchronous process.
*/
public void setAsyncHandler(AsyncHandler asyncHandler);
/**
* Set the {@link ProcessorTask} used to execute the request processing.
* @param task a {@link ProcessorTask}
*/
public void setProcessorTask(ProcessorTask task);
/**
* The {@link ProcessorTask} used to execute the request processing.
* @return {@link ProcessorTask} used to execute the request processing.
*/
public ProcessorTask getProcessorTask();
}