/*
 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
 * 
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * The contents of this file are subject to the terms of either the Universal Permissive License
 * v 1.0 as shown at http://oss.oracle.com/licenses/upl
 *
 * or the following license:
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this list of conditions
 * and the following disclaimer.
 * 
 * 2. 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.
 * 
 * 3. Neither the name of the copyright holder 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 HOLDER 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.openjdk.jmc.rjmx.util.internal;

import org.openjdk.jmc.rjmx.services.IAttributeInfo;

public class SimpleAttributeInfo implements IAttributeInfo {

	private final String name;
	private final String type;
	private final String description;

	public SimpleAttributeInfo(String name, String type) {
		this(name, type, null);
	}

	public SimpleAttributeInfo(String name, String type, String description) {
		this.name = name;
		this.type = type;
		this.description = description;
	}

	@Override
	public String getName() {
		return name;
	}

	@Override
	public String getDescription() {
		return description;
	}

	@Override
	public String getType() {
		return type;
	}

	// FIXME: add description to equals and hashcode?
	@Override
	public boolean equals(Object obj) {
		if (!(obj instanceof SimpleAttributeInfo)) {
			return super.equals(obj);
		}
		SimpleAttributeInfo that = (SimpleAttributeInfo) obj;
		if (getName() == null) {
			if (getType() == null) {
				return that.getName() == null && that.getType() == null;
			}
			return getType().equals(that.getType());
		}
		if (getType() == null) {
			return that.getType() == null && getName().equals(that.getName());
		}
		return getName().equals(that.getName()) && getType().equals(that.getType());
	}

	@Override
	public int hashCode() {
		if (getName() == null && getType() == null) {
			return 4711;
		}
		if (getType() == null) {
			return getName().hashCode();
		}
		if (getName() == null) {
			return getType().hashCode();
		}
		return getName().hashCode() ^ getType().hashCode();
	}
}
