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.maven;
017
018import static org.kuali.common.util.base.Precondition.checkNotNull;
019import static org.kuali.common.util.maven.RepositoryUtils.getFilename;
020import static org.kuali.common.util.maven.RepositoryUtils.getRepositoryPath;
021
022import org.kuali.common.util.maven.model.Artifact;
023
024import com.google.common.base.Function;
025import com.google.common.base.Joiner;
026
027// Singleton enum pattern
028public enum RepositoryKeyFunction implements Function<Artifact, String> {
029        INSTANCE;
030
031        private static final Joiner JOINER = Joiner.on('/');
032
033        @Override
034        public String apply(Artifact artifact) {
035                checkNotNull(artifact, "artifact");
036                return JOINER.join(getRepositoryPath(artifact), getFilename(artifact));
037        }
038
039}