001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.util;
016    
017    import com.liferay.portal.kernel.repository.InvalidRepositoryIdException;
018    import com.liferay.portal.kernel.repository.RepositoryException;
019    
020    /**
021     * @author Adolfo P??rez
022     */
023    public class RepositoryUtil {
024    
025            public static long getRepositoryEntryId(
026                            long folderId, long fileEntryId, long fileVersionId)
027                    throws RepositoryException {
028    
029                    long repositoryEntryId = 0;
030    
031                    if (folderId != 0) {
032                            repositoryEntryId = folderId;
033                    }
034                    else if (fileEntryId != 0) {
035                            repositoryEntryId = fileEntryId;
036                    }
037                    else if (fileVersionId != 0) {
038                            repositoryEntryId = fileVersionId;
039                    }
040    
041                    if (repositoryEntryId == 0) {
042                            throw new InvalidRepositoryIdException(
043                                    "Missing a valid ID for folder, file entry, or file version");
044                    }
045    
046                    return repositoryEntryId;
047            }
048    
049    }