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/**
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* '$RCSfile$'
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* Purpose: A Class that implements properties methods for metacat
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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: 2009-06-12 16:39:43 -0700 (Fri, 12 Jun 2009) $'
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* '$Revision: 4950 $'
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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.service;
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import java.io.IOException;
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import java.util.Map;
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import java.util.Set;
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import java.util.Vector;
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import javax.servlet.ServletContext;
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import javax.servlet.http.HttpServletRequest;
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import javax.xml.transform.TransformerException;
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import org.apache.log4j.Logger;
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import edu.ucsb.nceas.metacat.util.SystemUtil;
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import edu.ucsb.nceas.metacat.util.MetacatUtilException;
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import edu.ucsb.nceas.utilities.FileUtil;
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import edu.ucsb.nceas.utilities.GeneralPropertyException;
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import edu.ucsb.nceas.utilities.MetaDataProperty;
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import edu.ucsb.nceas.utilities.PropertiesMetaData;
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import edu.ucsb.nceas.utilities.PropertyNotFoundException;
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import edu.ucsb.nceas.utilities.SortedProperties;
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/**
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* A suite of utility classes for the metadata configuration utility
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*/
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public class PropertyService extends BaseService {
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private static PropertyService propertyService = null;
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// system is configured
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public static final String CONFIGURED = "true";
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// system has never been configured
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public static final String UNCONFIGURED = "false";
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public static final String BYPASSED = "bypassed";
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private static final String MAIN_CONFIG_NAME = "metacat.properties";
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private static final String AUTH_CONFIG_NAME = "auth.properties";
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private static boolean bypassAlreadyChecked = false;
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private static String recommendedExternalDir = null;
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private static String mainPropertiesFilePath = null;
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private static SortedProperties mainProperties = null;
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private static String mainBackupPropertiesFilePath = null;
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private static SortedProperties mainBackupProperties = null;
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private static String propertiesMetaDataFilePath = null;
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private static PropertiesMetaData mainMetaData = null;
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private static String authBackupPropertiesFilePath = null;
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private static SortedProperties authBackupProperties = null;
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private static String authMetaDataFilePath = null;
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private static PropertiesMetaData authMetaData = null;
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private static boolean testInstance = false;
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private static String testConfigDir = null;
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private static Logger logMetacat = Logger.getLogger(PropertyService.class);
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/**
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* private constructor since this is a singleton
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*
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* @param servletContext the context we will use to get relative paths
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*/
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private PropertyService() throws ServiceException {
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initialize();
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}
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/**
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* Get the single instance of PropertyService.
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*
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* @return the single instance of PropertyService
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*/
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public static PropertyService getInstance() throws ServiceException {
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if (propertyService == null) {
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propertyService = new PropertyService();
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}
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return propertyService;
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}
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/**
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* Get the single instance of PropertyService for test purposes. In this
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* case, we allow the configuration directory to be passed in.
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*
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* @param configDir the configuration directory we need to look in
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* @return the single instance of PropertyService
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*/
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public static PropertyService getTestInstance(String configDir) throws ServiceException {
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if (propertyService == null) {
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testInstance = true;
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testConfigDir = configDir;
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propertyService = new PropertyService();
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}
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return propertyService;
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}
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public boolean refreshable() {
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return true;
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}
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protected void doRefresh() throws ServiceException {
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initialize();
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}
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/**
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* Initialize the singleton.
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*
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* @param servletContext the context we will use to get relative paths
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*/
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private void initialize() throws ServiceException {
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logMetacat.debug("Initializing PropertyService");
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String configDir;
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if (testInstance) {
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configDir = testConfigDir;
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} else {
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configDir = ServiceService.getRealConfigDir();
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}
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try {
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// mainProperties will hold the primary configuration values for
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// metacat.
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mainPropertiesFilePath = configDir + FileUtil.getFS() + MAIN_CONFIG_NAME;
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mainProperties = new SortedProperties(mainPropertiesFilePath);
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mainProperties.load();
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// mainMetaData holds configuration information about main
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// properties. This is primarily used to display input fields on
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// the configuration page. The information is retrieved from an
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// xml metadata file
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propertiesMetaDataFilePath =
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configDir + FileUtil.getFS() + MAIN_CONFIG_NAME + ".metadata.xml";
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mainMetaData = new PropertiesMetaData(propertiesMetaDataFilePath);
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// authMetaData holds configuration information about organization
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// level
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// properties. This is primarily used to display input fields on
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// the auth configuration page. The information is retrieved
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// from an xml metadata file dedicated just to auth properties.
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authMetaDataFilePath =
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configDir + FileUtil.getFS() + AUTH_CONFIG_NAME + ".metadata.xml";
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authMetaData = new PropertiesMetaData(authMetaDataFilePath);
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String recommendedExternalDir = SystemUtil.discoverExternalDir();
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setRecommendedExternalDir(recommendedExternalDir);
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String backupPath = getProperty("application.backupDir");
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if (backupPath == null || backupPath.equals("")) {
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backupPath = SystemUtil.getStoredBackupDir();
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}
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if (backupPath == null || backupPath.equals("") && recommendedExternalDir != null) {
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backupPath =
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recommendedExternalDir + FileUtil.getFS() + "." + ServiceService.getRealApplicationContext();
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}
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// if backupPath is still null, no reason to initialize the
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// backup properties. The system will need to prompt the user for
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// the backup properties and reinitialize PropertyService.
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if (backupPath != null && !backupPath.equals("")) {
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setProperty("application.backupDir", backupPath);
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SystemUtil.writeStoredBackupFile(backupPath);
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// The mainBackupProperties hold properties that were backed up
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// the last time the application was configured. On disk, the
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// file will look like a smaller version of metacat.properties.
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// It is stored in the data storage directory outside the
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// application directories.
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mainBackupPropertiesFilePath =
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backupPath + FileUtil.getFS() + MAIN_CONFIG_NAME + ".backup";
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mainBackupProperties = new SortedProperties(mainBackupPropertiesFilePath);
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mainBackupProperties.load();
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// The authBackupProperties hold properties that were backed up
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// the last time the auth was configured. On disk, the file
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// will look like a smaller version of metacat.properties. It
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// is stored in the data storage directory outside the
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// application directories.
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authBackupPropertiesFilePath =
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backupPath + FileUtil.getFS() + AUTH_CONFIG_NAME + ".backup";
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authBackupProperties = new SortedProperties(authBackupPropertiesFilePath);
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authBackupProperties.load();
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}
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} catch (TransformerException te) {
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throw new ServiceException("Transform problem while loading properties: "
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+ te.getMessage());
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} catch (IOException ioe) {
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throw new ServiceException("I/O problem while loading properties: "
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+ ioe.getMessage());
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} catch (GeneralPropertyException gpe) {
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throw new ServiceException("General properties problem while loading properties: "
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+ gpe.getMessage());
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} catch (MetacatUtilException ue) {
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throw new ServiceException("Utilities problem while loading properties: "
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+ ue.getMessage());
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}
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}
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/**
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* Utility method to get a property value from the properties file
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*
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* @param propertyName
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* the name of the property requested
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* @return the String value for the property
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*/
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public static String getProperty(String propertyName)
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throws PropertyNotFoundException {
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return mainProperties.getProperty(propertyName);
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}
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/**
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* Get a set of all property names.
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*
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* @return Set of property names
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*/
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public static Vector<String> getPropertyNames() {
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return mainProperties.getPropertyNames();
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}
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/**
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* Get a Set of all property names that start with the groupName prefix.
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*
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* @param groupName
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* the prefix of the keys to search for.
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* @return enumeration of property names
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*/
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public static Vector<String> getPropertyNamesByGroup(String groupName) {
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return mainProperties.getPropertyNamesByGroup(groupName);
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}
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/**
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* Get a Map of all properties that start with the groupName prefix.
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*
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* @param groupName
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* the prefix of the keys to search for.
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* @return Map of property names
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*/
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public static Map<String, String> getPropertiesByGroup(String groupName) throws PropertyNotFoundException {
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return mainProperties.getPropertiesByGroup(groupName);
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}
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/**
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* Utility method to set a property value both in memory and to the
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* properties file
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*
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* @param propertyName
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* the name of the property requested
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* @param newValue
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* the new value for the property
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*/
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public static void setProperty(String propertyName, String newValue) throws GeneralPropertyException {
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mainProperties.setProperty(propertyName, newValue);
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mainProperties.store();
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}
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/**
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* Utility method to set a property value in memory. This will NOT cause the
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* property to be written to disk. Use this method to set multiple
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* properties in a row without causing excessive I/O. You must call
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* persistProperties() once you're done setting properties to have them
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* written to disk.
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*
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* @param propertyName
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* the name of the property requested
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* @param newValue
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* the new value for the property
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*/
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public static void setPropertyNoPersist(String propertyName, String newValue) throws GeneralPropertyException {
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mainProperties.setPropertyNoPersist(propertyName, newValue);
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}
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/**
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* Save the properties to a properties file. Note, the
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* order and comments will be preserved.
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*/
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public static void persistProperties() throws GeneralPropertyException {
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mainProperties.store();
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}
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/**
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* Get the main backup properties file. These are configurable properties that
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* are stored outside the metacat install directories so the user does not
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* need to re-enter all the configuration information every time they do an
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* upgrade.
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*
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* @return a SortedProperties object with the backup properties
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*/
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public static SortedProperties getMainBackupProperties() {
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return mainBackupProperties;
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}
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/**
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* Get the auth backup properties file. These are configurable
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* properties that are stored outside the metacat install directories so
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* the user does not need to re-enter all the configuration information
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* every time they do an upgrade.
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*
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* @return a SortedProperties object with the backup properties
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*/
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public static SortedProperties getAuthBackupProperties() {
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return authBackupProperties;
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}
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/**
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* Get the main properties metadata. This is retrieved from an xml file that
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* describes the attributes of configurable properties.
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*
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* @return a PropertiesMetaData object with the main properties metadata
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*/
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public static PropertiesMetaData getMainMetaData() {
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return mainMetaData;
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}
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/**
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* Get the auth properties metadata. This is retrieved from an xml
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* file that describes the attributes of configurable properties.
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*
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* @return a PropertiesMetaData object with the organization properties
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* metadata
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*/
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public static PropertiesMetaData getAuthMetaData() {
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return authMetaData;
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}
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/**
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* Writes out backup configurable properties to a file.
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*/
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public static void persistMainBackupProperties(ServletContext servletContext)
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throws GeneralPropertyException {
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// Use the metadata to extract configurable properties from the
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// overall properties list, and store those properties.
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try {
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SortedProperties backupProperties = new SortedProperties(mainBackupPropertiesFilePath);
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// Populate the backup properties for main metacat properties using
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// the associated metadata file
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PropertiesMetaData mainMetadata = new PropertiesMetaData(propertiesMetaDataFilePath);
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Map<String, MetaDataProperty> mainKeyMap = mainMetadata.getProperties();
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Set<String> mainKeySet = mainKeyMap.keySet();
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for (String propertyKey : mainKeySet) {
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// don't backup passwords
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MetaDataProperty metaData = mainKeyMap.get(propertyKey);
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if (!metaData.getFieldType().equals(MetaDataProperty.PASSWORD_TYPE)) {
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backupProperties.addProperty(propertyKey, getProperty(propertyKey));
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}
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}
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// store the properties to file
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backupProperties.store();
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mainBackupProperties =
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new SortedProperties(mainBackupPropertiesFilePath);
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mainBackupProperties.load();
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} catch (TransformerException te) {
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throw new GeneralPropertyException("Could not transform backup properties xml: "
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+ te.getMessage());
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} catch (IOException ioe) {
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throw new GeneralPropertyException("Could not backup configurable properties: "
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+ ioe.getMessage());
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}
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}
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|
398
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/**
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* Writes out backup configurable properties to a file.
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*/
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public static void persistAuthBackupProperties(ServletContext servletContext)
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throws GeneralPropertyException {
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403
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|
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// Use the metadata to extract configurable properties from the
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// overall properties list, and store those properties.
|
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try {
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SortedProperties backupProperties =
|
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new SortedProperties(authBackupPropertiesFilePath);
|
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|
|
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// Populate the backup properties for auth properties using
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// the associated metadata file
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PropertiesMetaData authMetadata = new PropertiesMetaData(authMetaDataFilePath);
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Map<String, MetaDataProperty> authKeyMap = authMetadata.getProperties();
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Set<String> authKeySet = authKeyMap.keySet();
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for (String propertyKey : authKeySet) {
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// don't backup passwords
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MetaDataProperty metaData = authKeyMap.get(propertyKey);
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if (!metaData.getFieldType().equals(MetaDataProperty.PASSWORD_TYPE)) {
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backupProperties.addProperty(propertyKey, getProperty(propertyKey));
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}
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}
|
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// store the properties to file
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backupProperties.store();
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authBackupProperties =
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new SortedProperties(authBackupPropertiesFilePath);
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authBackupProperties.load();
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|
|
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} catch (TransformerException te) {
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throw new GeneralPropertyException("Could not transform backup properties xml: "
|
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+ te.getMessage());
|
433
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} catch (IOException ioe) {
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434
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throw new GeneralPropertyException("Could not backup configurable properties: "
|
435
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+ ioe.getMessage());
|
436
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}
|
437
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}
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438
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|
439
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/**
|
440
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* Reports whether properties are fully configured.
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441
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*
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* @return a boolean that is true if properties are not unconfigured and
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443
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* false otherwise
|
444
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*/
|
445
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public static boolean arePropertiesConfigured() throws MetacatUtilException {
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446
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try {
|
447
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String propertiesConfigured = PropertyService.getProperty("configutil.propertiesConfigured");
|
448
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if (propertiesConfigured != null && !propertiesConfigured.equals(UNCONFIGURED)) {
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449
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return true;
|
450
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}
|
451
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return false;
|
452
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} catch (PropertyNotFoundException pnfe) {
|
453
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throw new MetacatUtilException("Could not determine if properties are configured: "
|
454
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+ pnfe.getMessage());
|
455
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}
|
456
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}
|
457
|
|
458
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/**
|
459
|
* Determine if the system is configured to bypass configuration. If so, the
|
460
|
* system will look for backup configuration files at startup time and use
|
461
|
* those to configure metacat. The bypass options should only be set by
|
462
|
* developers. Production code should never bypass confguration.
|
463
|
*
|
464
|
* @return true if dev.runConfiguration is set to true in metacat.properties
|
465
|
* and we have not already checked for bypass, false otherwise.
|
466
|
*/
|
467
|
public static boolean doBypass() throws PropertyNotFoundException {
|
468
|
// We only want to go through the check once to see if we want to
|
469
|
// bypass the configuration. We don't want to run through all of
|
470
|
// this every time we hit metacat.
|
471
|
if (bypassAlreadyChecked) {
|
472
|
logMetacat.debug("bypassConfiguration not performing full bypass check. Bypass set to false");
|
473
|
return false;
|
474
|
}
|
475
|
|
476
|
// check how dev.runConfiguration is set in metacat.properties
|
477
|
String strRunConfiguration = PropertyService.getProperty("dev.runConfiguration");
|
478
|
boolean runConfiguration = Boolean.parseBoolean(strRunConfiguration);
|
479
|
logMetacat.debug("bypassConfiguration: dev.runConfiguration property set to: " + strRunConfiguration);
|
480
|
|
481
|
// if the dev.runConfiguration is true, return false here.
|
482
|
if (runConfiguration) {
|
483
|
bypassAlreadyChecked = true;
|
484
|
return false;
|
485
|
}
|
486
|
|
487
|
return true;
|
488
|
}
|
489
|
|
490
|
/**
|
491
|
* Reports whether the metacat configuration utility should be run.
|
492
|
* Returns false if
|
493
|
* -- dev.runConfiguration=false and
|
494
|
* -- backup properties file exists
|
495
|
* Note that dev.runConfiguration should only be set to false when
|
496
|
* reinstalling the same version of the application in developement.
|
497
|
*
|
498
|
* @return a boolean that is false if dev.runConfiguration is false and
|
499
|
* the backup properties file exists.
|
500
|
*/
|
501
|
public static void bypassConfiguration() throws ServiceException {
|
502
|
try {
|
503
|
boolean doBypass = doBypass();
|
504
|
|
505
|
if (!doBypass) {
|
506
|
throw new ServiceException(
|
507
|
"Attempting to do bypass when system is not configured for it.");
|
508
|
}
|
509
|
|
510
|
// The system is bypassing the configuration utility. We need to
|
511
|
// get the backup properties and replace existing properties with
|
512
|
// backup values. We do this for main and org properties.
|
513
|
logMetacat.debug("bypassConfiguration: setting main backup properties.");
|
514
|
SortedProperties mainBackupProperties = getMainBackupProperties();
|
515
|
Vector<String> backupPropertyNames =
|
516
|
mainBackupProperties.getPropertyNames();
|
517
|
for (String backupPropertyName : backupPropertyNames) {
|
518
|
String value = mainBackupProperties.getProperty(backupPropertyName);
|
519
|
setPropertyNoPersist(backupPropertyName, value);
|
520
|
}
|
521
|
|
522
|
logMetacat.debug("bypassConfiguration: setting auth backup properties.");
|
523
|
SortedProperties authBackupProperties = getAuthBackupProperties();
|
524
|
Vector<String> authBackupPropertyNames =
|
525
|
authBackupProperties.getPropertyNames();
|
526
|
for (String authBackupPropertyName : authBackupPropertyNames) {
|
527
|
String value = authBackupProperties.getProperty(authBackupPropertyName);
|
528
|
setPropertyNoPersist(authBackupPropertyName, value);
|
529
|
}
|
530
|
|
531
|
logMetacat.debug("bypassConfiguration: setting configutil sections to true.");
|
532
|
setPropertyNoPersist("configutil.propertiesConfigured", "true");
|
533
|
setPropertyNoPersist("configutil.authConfigured", "true");
|
534
|
setPropertyNoPersist("configutil.skinsConfigured", "true");
|
535
|
setPropertyNoPersist("configutil.databaseConfigured", "true");
|
536
|
setPropertyNoPersist("configutil.geoserverConfigured", "bypassed");
|
537
|
|
538
|
persistProperties();
|
539
|
|
540
|
} catch (PropertyNotFoundException pnfe) {
|
541
|
logMetacat.error("bypassConfiguration: Could not find property: " + pnfe.getMessage());
|
542
|
} catch (GeneralPropertyException gpe) {
|
543
|
logMetacat.error("bypassConfiguration: General property error: " + gpe.getMessage());
|
544
|
}
|
545
|
|
546
|
bypassAlreadyChecked = true;
|
547
|
}
|
548
|
|
549
|
/**
|
550
|
* Take input from the user in an HTTP request about an property to be changed
|
551
|
* and update the metacat property file with that new value if it has
|
552
|
* changed from the value that was originally set.
|
553
|
*
|
554
|
* @param request
|
555
|
* that was generated by the user
|
556
|
* @param response
|
557
|
* to send output back to the user
|
558
|
* @param propertyName
|
559
|
* the name of the property to be checked and set
|
560
|
*/
|
561
|
public static void checkAndSetProperty(HttpServletRequest request, String propertyName)
|
562
|
throws GeneralPropertyException {
|
563
|
String value = PropertyService.getProperty(propertyName);
|
564
|
String newValue = request.getParameter(propertyName);
|
565
|
if (newValue != null && !newValue.trim().equals(value)) {
|
566
|
PropertyService.setPropertyNoPersist(propertyName, newValue.trim());
|
567
|
}
|
568
|
}
|
569
|
|
570
|
/**
|
571
|
* Sets the recommended external directory. This is populated during initialization
|
572
|
* time using the SystemUtil.discoverExternalDir() method. This directory will be used to
|
573
|
* suggest external user directories when the user configures metacat for the first time.
|
574
|
*
|
575
|
*/
|
576
|
public static void setRecommendedExternalDir(String extBaseDir) {
|
577
|
recommendedExternalDir = extBaseDir;
|
578
|
}
|
579
|
|
580
|
/**
|
581
|
* Returns the recommended external base directory. This is populated during initialization
|
582
|
* time using the SystemUtil.discoverExternalBaseDir() method. This directory will be used to
|
583
|
* suggest external user directories when the user configures metacat for the first time.
|
584
|
*
|
585
|
* @return a String holding the recommended external directory
|
586
|
*/
|
587
|
public static String getRecommendedExternalDir() {
|
588
|
return recommendedExternalDir;
|
589
|
}
|
590
|
|
591
|
}
|