/*
 * Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
 *
 * Licensed 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.springframework.security;

import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;

/**
 * Represents a secured object.
 *
 * @author Ben Alex
 */
public class TargetObject implements ITargetObject {
	// ~ Methods
	// ========================================================================================================

	public Integer computeHashCode(String input) {
		return Integer.valueOf(input.hashCode());
	}

	public int countLength(String input) {
		return input.length();
	}

	/**
	 * Returns the lowercase string, followed by security environment information.
	 *
	 * @param input the message to make lowercase
	 *
	 * @return the lowercase message, a space, the <code>Authentication</code> class that
	 * was on the <code>SecurityContext</code> at the time of method invocation, and a
	 * boolean indicating if the <code>Authentication</code> object is authenticated or
	 * not
	 */
	public String makeLowerCase(String input) {
		Authentication auth = SecurityContextHolder.getContext().getAuthentication();

		if (auth == null) {
			return input.toLowerCase() + " Authentication empty";
		}
		else {
			return input.toLowerCase() + " " + auth.getClass().getName() + " "
					+ auth.isAuthenticated();
		}
	}

	/**
	 * Returns the uppercase string, followed by security environment information.
	 *
	 * @param input the message to make uppercase
	 *
	 * @return the uppercase message, a space, the <code>Authentication</code> class that
	 * was on the <code>SecurityContext</code> at the time of method invocation, and a
	 * boolean indicating if the <code>Authentication</code> object is authenticated or
	 * not
	 */
	public String makeUpperCase(String input) {
		Authentication auth = SecurityContextHolder.getContext().getAuthentication();

		return input.toUpperCase() + " " + auth.getClass().getName() + " "
				+ auth.isAuthenticated();
	}

	/**
	 * Delegates through to the {@link #makeLowerCase(String)} method.
	 *
	 * @param input the message to be made lower-case
	 */
	public String publicMakeLowerCase(String input) {
		return this.makeLowerCase(input);
	}
}
