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/**
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* '$RCSfile$'
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* Purpose: A Class that implements database administrative methods
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* Copyright: 2008 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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* Authors: Michael Daigle
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*
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* '$Author: daigle $'
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* '$Date: 2009-08-24 14:34:17 -0700 (Mon, 24 Aug 2009) $'
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* '$Revision: 5030 $'
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package edu.ucsb.nceas.metacat.util;
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import java.util.Map;
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import java.util.TreeSet;
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import java.util.Vector;
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import org.apache.log4j.Logger;
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import edu.ucsb.nceas.metacat.database.DBVersion;
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import edu.ucsb.nceas.metacat.properties.PropertyService;
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import edu.ucsb.nceas.metacat.shared.MetacatUtilException;
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import edu.ucsb.nceas.utilities.PropertyNotFoundException;
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public class DatabaseUtil {
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private static Logger logMetacat = Logger.getLogger(DatabaseUtil.class);
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/**
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* private constructor - all methods are static so there is no no need to
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* instantiate.
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*/
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private DatabaseUtil() {}
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/**
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* Reports whether database is fully configured.
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*
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* @return a boolean that is true if database is not unconfigured and false
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* otherwise
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*/
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public static boolean isDatabaseConfigured() throws MetacatUtilException {
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String databaseConfiguredString = PropertyService.UNCONFIGURED;
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try {
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databaseConfiguredString =
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PropertyService.getProperty("configutil.databaseConfigured");
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} catch (PropertyNotFoundException pnfe) {
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throw new MetacatUtilException("Could not determine if database is configured: "
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+ pnfe.getMessage());
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}
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return !databaseConfiguredString.equals(PropertyService.UNCONFIGURED);
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}
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/**
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* Gets the available upgrade versions for metacat by getting a list of
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* upgrade script from properties in metacat.properties that start with
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* "database.upgradeVersion". It then creats a DBVersion object for each
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* upgrade version.
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*
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* @return a TreeSet of DBVersion objects holding individual version information
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*/
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public static TreeSet<DBVersion> getUpgradeVersions() throws PropertyNotFoundException {
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TreeSet<DBVersion> versionSet = new TreeSet<DBVersion>();
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Vector<String> upgradeVersionKeys = PropertyService.getPropertyNamesByGroup("database.upgradeVersion");
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for (String upgradeVersionKey : upgradeVersionKeys) {
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String upgradeVersionId = upgradeVersionKey.substring(24);
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logMetacat.debug("Creating DBVersion object for version: " + upgradeVersionId);
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DBVersion dbVersion = new DBVersion(upgradeVersionId);
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versionSet.add(dbVersion);
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}
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return versionSet;
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}
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/**
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* Gets the available upgrade versions for metacat by getting a list of
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* upgrade script from properties in metacat.properties that start with
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* "database.upgradeVersion". It then creats a DBVersion object for each
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* upgrade version.
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*
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* @return a TreeSet of DBVersion objects holding individual version information
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*/
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public static Map<String, String> getScriptSuffixes() throws PropertyNotFoundException {
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return PropertyService.getPropertiesByGroup("database.scriptsuffix");
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}
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}
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