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/**
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* '$RCSfile$'
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* Purpose: A Class that implements main property configuration 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: 2009-10-06 10:55:18 -0700 (Tue, 06 Oct 2009) $'
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* '$Revision: 5076 $'
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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.admin;
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import java.util.Vector;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.apache.log4j.Logger;
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import edu.ucsb.nceas.metacat.MetacatVersion;
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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.service.ServiceService;
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import edu.ucsb.nceas.metacat.shared.MetacatUtilException;
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import edu.ucsb.nceas.metacat.shared.ServiceException;
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import edu.ucsb.nceas.metacat.util.RequestUtil;
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import edu.ucsb.nceas.metacat.util.SystemUtil;
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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.PropertiesMetaData;
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import edu.ucsb.nceas.utilities.SortedProperties;
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import edu.ucsb.nceas.utilities.UtilException;
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/**
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* Control the display of the main properties configuration page and the
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* processing of the configuration values.
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*/
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public class PropertiesAdmin extends MetacatAdmin {
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private static PropertiesAdmin propertiesAdmin = null;
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private static Logger logMetacat = Logger.getLogger(PropertiesAdmin.class);
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/**
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* private constructor since this is a singleton
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*/
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private PropertiesAdmin() {}
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/**
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* Get the single instance of the MetaCatConfig.
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*
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* @return the single instance of MetaCatConfig
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*/
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public static PropertiesAdmin getInstance() {
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if (propertiesAdmin == null) {
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propertiesAdmin = new PropertiesAdmin();
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}
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return propertiesAdmin;
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}
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/**
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* Handle configuration of the main application properties
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*
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* @param request
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* the http request object
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* @param response
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* the http response to be sent back to the client
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*/
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public void configureProperties(HttpServletRequest request,
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HttpServletResponse response) throws AdminException {
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String processForm = request.getParameter("processForm");
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String formErrors = (String)request.getAttribute("formErrors");
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if (processForm == null || !processForm.equals("true") || formErrors != null) {
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// The servlet configuration parameters have not been set, or there
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// were form errors on the last attempt to configure, so redirect to
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// the web form for configuring metacat
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try {
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// Load the properties metadata file so that the JSP page can
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// use the metadata to construct the editing form
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PropertiesMetaData metadata = PropertyService.getMainMetaData();
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request.setAttribute("metadata", metadata);
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String externalDir = PropertyService.getRecommendedExternalDir();
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if (externalDir == null) {
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throw new AdminException("Could not initialize property configuration "
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+ "page recommended application backup directory was null");
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}
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// Attempt to discover the following properties. These will show
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// up in the configuration fields if nothing else is provided.
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PropertyService.setPropertyNoPersist("application.context",
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ServiceService.getRealApplicationContext());
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PropertyService.setPropertyNoPersist("server.name", SystemUtil
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.discoverServerName(request));
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PropertyService.setPropertyNoPersist("server.httpPort", SystemUtil
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.discoverServerPort(request));
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PropertyService.setPropertyNoPersist("server.httpSSLPort",
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SystemUtil.discoverServerSSLPort(request));
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PropertyService.setPropertyNoPersist("application.deployDir",
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SystemUtil.discoverDeployDir(request));
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PropertyService.setPropertyNoPersist("application.datafilepath",
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externalDir + FileUtil.getFS() + "data");
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PropertyService.setPropertyNoPersist("application.inlinedatafilepath",
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externalDir + FileUtil.getFS() + "inline-data");
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PropertyService.setPropertyNoPersist("application.documentfilepath",
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externalDir + FileUtil.getFS() + "documents");
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PropertyService.setPropertyNoPersist("application.tempDir",
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externalDir + FileUtil.getFS() + "temporary");
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PropertyService.setPropertyNoPersist("replication.logdir",
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externalDir + FileUtil.getFS() + "logs");
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PropertyService.persistProperties();
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// Add the list of properties from metacat.properties to the request
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Vector<String> propertyNames = PropertyService.getPropertyNames();
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for (String propertyName : propertyNames) {
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request.setAttribute(propertyName, PropertyService.getProperty(propertyName));
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}
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// Check for any backup properties and apply them to the
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// request. These are properties from previous configurations.
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// They keep the user from having to re-enter all values when
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// upgrading. If this is a first time install, getBackupProperties
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// will return null.
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SortedProperties backupProperties = null;
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if ((backupProperties =
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PropertyService.getMainBackupProperties()) != null) {
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Vector<String> backupKeys = backupProperties.getPropertyNames();
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for (String key : backupKeys) {
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String value = backupProperties.getProperty(key);
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if (value != null) {
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request.setAttribute(key, value);
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}
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}
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}
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// Forward the request to the JSP page
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RequestUtil.forwardRequest(request, response,
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"/admin/properties-configuration.jsp", null);
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} catch (GeneralPropertyException gpe) {
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throw new AdminException("PropertiesAdmin.configureProperties - Problem getting or " +
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"setting property while initializing system properties page: " + gpe.getMessage());
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} catch (MetacatUtilException mue) {
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throw new AdminException("PropertiesAdmin.configureProperties - utility problem while initializing "
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+ "system properties page:" + mue.getMessage());
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} catch (ServiceException se) {
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throw new AdminException("PropertiesAdmin.configureProperties - Service problem while initializing "
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+ "system properties page:" + se.getMessage());
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}
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} else {
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// The configuration form is being submitted and needs to be
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// processed.
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Vector<String> validationErrors = new Vector<String>();
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Vector<String> processingErrors = new Vector<String>();
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Vector<String> processingSuccess = new Vector<String>();
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MetacatVersion metacatVersion = null;
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try {
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metacatVersion = SystemUtil.getMetacatVersion();
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// For each property, check if it is changed and save it
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Vector<String> propertyNames = PropertyService.getPropertyNames();
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for (String name : propertyNames) {
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PropertyService.checkAndSetProperty(request, name);
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}
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// we need to write the options from memory to the properties
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// file
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PropertyService.persistProperties();
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// Validate that the options provided are legitimate. Note that
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// we've allowed them to persist their entries. As of this point
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// there is no other easy way to go back to the configure form
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// and preserve their entries.
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validationErrors.addAll(validateOptions(request));
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// Try to create data directories if necessary.
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String dataDir = PropertyService.getProperty("application.datafilepath");
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try {
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FileUtil.createDirectory(dataDir);
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} catch (UtilException ue) {
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String errorString = "PropertiesAdmin.configureProperties - Could not create directory: " + dataDir +
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" : " + ue.getMessage();
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logMetacat.error(errorString);
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validationErrors.add(errorString);
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}
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// Try to create inline-data directories if necessary.
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String inlineDataDir = PropertyService.getProperty("application.inlinedatafilepath");
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try {
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FileUtil.createDirectory(inlineDataDir);
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} catch (UtilException ue) {
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String errorString = "PropertiesAdmin.configureProperties - Could not create directory: " + inlineDataDir +
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" : " + ue.getMessage();
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logMetacat.error(errorString);
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validationErrors.add(errorString);
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}
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// Try to create document directories if necessary.
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String documentfilepath = PropertyService.getProperty("application.documentfilepath");
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try {
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FileUtil.createDirectory(documentfilepath);
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} catch (UtilException ue) {
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String errorString = "PropertiesAdmin.configureProperties - Could not create directory: " + documentfilepath +
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" : " + ue.getMessage();
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logMetacat.error(errorString);
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validationErrors.add(errorString);
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}
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// Try to create temporary directories if necessary.
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String tempDir = PropertyService.getProperty("application.tempDir");
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try {
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FileUtil.createDirectory(tempDir);
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} catch (UtilException ue) {
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String errorString = "PropertiesAdmin.configureProperties - Could not create directory: " + tempDir +
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" : " + ue.getMessage();
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logMetacat.error(errorString);
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validationErrors.add(errorString);
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}
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// Try to create temporary directories if necessary.
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String replLogDir = PropertyService.getProperty("replication.logdir");
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try {
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FileUtil.createDirectory(replLogDir);
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} catch (UtilException ue) {
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String errorString = "PropertiesAdmin.configureProperties - Could not create directory: " + replLogDir +
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" : " + ue.getMessage();
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logMetacat.error(errorString);
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validationErrors.add(errorString);
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}
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// write the backup properties to a location outside the
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// application directories so they will be available after
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// the next upgrade
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PropertyService.persistMainBackupProperties();
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} catch (GeneralPropertyException gpe) {
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String errorMessage = "PropertiesAdmin.configureProperties - Problem getting or setting property while "
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+ "processing system properties page: " + gpe.getMessage();
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logMetacat.error(errorMessage);
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processingErrors.add(errorMessage);
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}
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try {
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if (validationErrors.size() > 0 || processingErrors.size() > 0) {
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RequestUtil.clearRequestMessages(request);
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RequestUtil.setRequestFormErrors(request, validationErrors);
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RequestUtil.setRequestErrors(request, processingErrors);
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RequestUtil.forwardRequest(request, response, "/admin", null);
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} else {
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// Now that the options have been set, change the
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// 'propertiesConfigured' option to 'true'
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PropertyService.setProperty("configutil.propertiesConfigured",
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PropertyService.CONFIGURED);
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// if the db version is already the same as the metacat version,
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// update metacat.properties. Have to do this after
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// propertiesConfigured is set to CONFIGURED
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DBVersion dbVersion = DBAdmin.getInstance().getDBVersion();
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if (dbVersion != null && metacatVersion != null &&
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dbVersion.compareTo(metacatVersion) == 0) {
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PropertyService.setProperty("configutil.databaseConfigured",
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PropertyService.CONFIGURED);
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}
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// Reload the main metacat configuration page
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processingSuccess.add("Properties successfully configured");
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RequestUtil.clearRequestMessages(request);
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RequestUtil.setRequestSuccess(request, processingSuccess);
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RequestUtil.forwardRequest(request, response,
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"/admin?configureType=configure&processForm=false", null);
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}
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} catch (MetacatUtilException mue) {
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throw new AdminException("PropertiesAdmin.configureProperties - utility problem while processing system "
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+ "properties page: " + mue.getMessage());
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} catch (GeneralPropertyException gpe) {
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throw new AdminException("PropertiesAdmin.configureProperties - problem with properties while "
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+ "processing system properties page: " + gpe.getMessage());
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}
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}
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}
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/**
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* Validate the most important configuration options submitted by the user.
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*
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* @param request
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* the http request object
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*
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* @return a vector holding error message for any fields that fail
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* validation.
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*/
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protected Vector<String> validateOptions(HttpServletRequest request) {
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Vector<String> errorVector = new Vector<String>();
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// Test database connectivity
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try {
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String dbError = DBAdmin.getInstance().validateDBConnectivity(
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request.getParameter("database.driver"),
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request.getParameter("database.connectionURI"),
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request.getParameter("database.user"),
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request.getParameter("database.password"));
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if (dbError != null) {
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errorVector.add(dbError);
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}
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} catch (AdminException ae) {
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errorVector.add("Could not instantiate database admin: "
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+ ae.getMessage());
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}
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return errorVector;
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}
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}
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