/*
 * Copyright (C) 2011, 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.
 *
 * - 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
 *   written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.eclipse.jgit.internal.storage.dfs;

/**
 * A description of a Git repository on a DFS.
 */
public class DfsRepositoryDescription {
	private final String repositoryName;

	/**
	 * Initialize a new, empty repository description.
	 */
	public DfsRepositoryDescription() {
		this(null);
	}

	/**
	 * Initialize a new repository description.
	 *
	 * @param repositoryName
	 *             the name of the repository.
	 */
	public DfsRepositoryDescription(String repositoryName) {
		this.repositoryName = repositoryName;
	}

	/**
	 * Get the name of the repository.
	 *
	 * @return the name of the repository.
	 */
	public String getRepositoryName() {
		return repositoryName;
	}

	/** {@inheritDoc} */
	@Override
	public int hashCode() {
		if (getRepositoryName() != null)
			return getRepositoryName().hashCode();
		return System.identityHashCode(this);
	}

	/** {@inheritDoc} */
	@Override
	public boolean equals(Object b) {
		if (b instanceof DfsRepositoryDescription){
			String name = getRepositoryName();
			String otherName = ((DfsRepositoryDescription) b).getRepositoryName();
			return name != null ? name.equals(otherName) : this == b;
		}
		return false;
	}

	/** {@inheritDoc} */
	@SuppressWarnings("nls")
	@Override
	public String toString() {
		return "DfsRepositoryDescription[" + getRepositoryName() + "]";
	}
}