001/**
002 * Copyright 2010-2014 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.kuali.common.util;
017
018import java.util.ArrayList;
019import java.util.List;
020
021import org.slf4j.Logger;
022import org.slf4j.LoggerFactory;
023
024public class ModeUtils {
025
026        private static final Logger logger = LoggerFactory.getLogger(ModeUtils.class);
027
028        public static final void validate(Mode mode, String msg) {
029                validate(mode, msg, msg);
030        }
031
032        public static final void validate(Mode mode, String msg, String errMsg) {
033                validate(mode, msg, null, errMsg);
034        }
035
036        public static final void validate(Mode mode, String msg, Object arg, String errMsg) {
037                validate(mode, msg, arg, null, errMsg);
038        }
039
040        public static final void validate(Mode mode, String msg, Object arg1, Object arg2, String errMsg) {
041                validate(mode, msg, getArgs(arg1, arg2), errMsg);
042        }
043
044        public static final void validate(Mode mode, String msg, Object[] args, String errMsg) {
045                switch (mode) {
046                case IGNORE:
047                        return;
048                case DEBUG:
049                        logger.debug(msg, args);
050                        return;
051                case INFORM:
052                        logger.info(msg, args);
053                        return;
054                case WARN:
055                        logger.warn(msg, args);
056                        return;
057                case ERROR:
058                        logger.error(msg, args);
059                        throw new IllegalStateException(errMsg);
060                default:
061                        throw new IllegalArgumentException("Mode '" + mode + "' is unknown");
062                }
063        }
064
065        protected static final Object[] getArgs(Object arg1, Object arg2) {
066                if (arg1 == null && arg2 == null) {
067                        return null;
068                }
069                List<Object> args = new ArrayList<Object>();
070                if (arg1 != null) {
071                        args.add(arg1);
072                }
073                if (arg2 != null) {
074                        args.add(arg2);
075                }
076                return CollectionUtils.toObjectArray(args);
077        }
078
079}