/*
 * 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.core.userdetails.memory;

import java.beans.PropertyEditorSupport;
import java.util.ArrayList;
import java.util.List;

import org.springframework.util.StringUtils;

/**
 * Property editor that creates a {@link UserAttribute} from a comma separated list of
 * values.
 *
 * @author Ben Alex
 */
public class UserAttributeEditor extends PropertyEditorSupport {
	// ~ Methods
	// ========================================================================================================

	public void setAsText(String s) throws IllegalArgumentException {
		if (StringUtils.hasText(s)) {
			String[] tokens = StringUtils.commaDelimitedListToStringArray(s);
			UserAttribute userAttrib = new UserAttribute();

			List<String> authoritiesAsStrings = new ArrayList<String>();

			for (int i = 0; i < tokens.length; i++) {
				String currentToken = tokens[i].trim();

				if (i == 0) {
					userAttrib.setPassword(currentToken);
				}
				else {
					if (currentToken.toLowerCase().equals("enabled")) {
						userAttrib.setEnabled(true);
					}
					else if (currentToken.toLowerCase().equals("disabled")) {
						userAttrib.setEnabled(false);
					}
					else {
						authoritiesAsStrings.add(currentToken);
					}
				}
			}
			userAttrib.setAuthoritiesAsString(authoritiesAsStrings);

			if (userAttrib.isValid()) {
				setValue(userAttrib);
			}
			else {
				setValue(null);
			}
		}
		else {
			setValue(null);
		}
	}
}
