jgit/org.eclipse.jgit/src/org/eclipse/jgit/transport/ServiceMayNotContinueException.java

/*
 * Copyright (C) 2011-2012, Google Inc.
 * and other copyright owners as documented in the project's IP log.
 *
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Distribution License v1.0 which
 * accompanies this distribution, is reproduced below, and is
 * available at http://www.eclipse.org/org/documents/edl-v10.php
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above
 *   copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials provided
 *   with the distribution.
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 * - Neither the name of the Eclipse Foundation, Inc. nor the
 *   names of its contributors may be used to endorse or promote
 *   products derived from this software without specific prior
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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package org.eclipse.jgit.transport;

import java.io.IOException;

import javax.servlet.http.HttpServletResponse;

import org.eclipse.jgit.internal.JGitText;

/**
 * Indicates a transport service may not continue execution.
 *
 * @since 2.0
 */
public class ServiceMayNotContinueException extends IOException {
	private static final long serialVersionUID = 1L;

	private final int statusCode;
	private boolean output;

	/** Initialize with no message. */
	public ServiceMayNotContinueException() {
		// Do not set a message.
		statusCode = HttpServletResponse.SC_FORBIDDEN;
	}

	/**
	 * @param msg
	 *            a message explaining why it cannot continue. This message may
	 *            be shown to an end-user.
	 */
	public ServiceMayNotContinueException(String msg) {
		super(msg);
		statusCode = HttpServletResponse.SC_FORBIDDEN;
	}

	/**
	 * @param msg
	 *            a message explaining why it cannot continue. This message may
	 *            be shown to an end-user.
	 * @param statusCode
	 *            the HTTP status code.
	 * @since 4.5
	 */
	public ServiceMayNotContinueException(String msg, int statusCode) {
		super(msg);
		this.statusCode = statusCode;
	}

	/**
	 * @param msg
	 *            a message explaining why it cannot continue. This message may
	 *            be shown to an end-user.
	 * @param cause
	 *            the cause of the exception.
	 * @since 3.2
	 */
	public ServiceMayNotContinueException(String msg, Throwable cause) {
		super(msg, cause);
		statusCode = HttpServletResponse.SC_FORBIDDEN;
	}

	/**
	 * @param msg
	 *            a message explaining why it cannot continue. This message may
	 *            be shown to an end-user.
	 * @param cause
	 *            the cause of the exception.
	 * @param statusCode
	 *            the HTTP status code.
	 * @since 4.5
	 */
	public ServiceMayNotContinueException(
			String msg, Throwable cause, int statusCode) {
		super(msg, cause);
		this.statusCode = statusCode;
	}

	/**
	 * Initialize with an "internal server error" message and a cause.
	 *
	 * @param cause
	 *            the cause of the exception.
	 * @since 3.2
	 */
	public ServiceMayNotContinueException(Throwable cause) {
		this(JGitText.get().internalServerError, cause);
	}

	/** @return true if the message was already output to the client. */
	public boolean isOutput() {
		return output;
	}

	/** Mark this message has being sent to the client. */
	public void setOutput() {
		output = true;
	}

	/**
	 * @return true if the message was already output to the client.
	 * @since 4.5
	 */
	public int getStatusCode() {
		return statusCode;
	}
}