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Revision 3099

Added by Matt Jones almost 18 years ago

Updated MetaCatServlet so that it supports a web-based interface for configuring its own properties the first time it is run (determined by the property "configured" being set to false). Which properties are exposed in the web interface is determined by the list of properties in the 'metacat.properties.metadata' file. This file is managed by the new OptionsMetadata class in the utilities module, and provides information that allows metacat to build a human-readable configuration page for the properties. Still need to finish filling out the information in metacat.properties.metadata for the rest of the properties that we want to be editable. This autoconfiguration process is the first step towards building a turnkey installer for metacat.

Note: you need to remove the lib/utilities.jar file from your metacat workspace, update the utilities module, and then rebuild metacat clean in order to pickup the changes introduced here.

lib/metacat.properties.metadata
	1	# user,Database Username,Database,1,Name of database user to own all tables
	2	# password,Database Password,Database,2,Password for database user
	3	# administrators,Administrators,Access Configuration,1,List of administrators for this installation in LDAP DN syntax (colon separated)
	4	# moderators,Moderators,Access Configuration,2,List of moderators for this installation in LDAP DN syntax (colon separated)
0	5

     <%@ page    language="java" import="java.util.Enumeration" %>
     <%@ page    language="java" import="java.util.Enumeration,java.util.Iterator,java.util.Set,java.util.Map,edu.ucsb.nceas.utilities.OptionsMetadata" %>
     <%
     /**
      *  '$RCSfile$'
-...
     <br clear="right"/>
     <form method="POST" action="<%= request.getContextPath() %>/metacat">
     <p class="section">All properties (unsorted, need to fix)</p>
     <%
        Enumeration optionsList = (Enumeration)request.getAttribute("optionslist");
        while (optionsList.hasMoreElements()) {
            String name = (String)optionsList.nextElement();
            if (!name.equals("configured")) {
         OptionsMetadata metadata = (OptionsMetadata)request.getAttribute("metadata");
     	if (metadata != null) {
             Set groups = metadata.getGroups();
             Iterator iter = groups.iterator();
        		while (iter.hasNext()) {
            		String groupName = (String)iter.next();
     %>
             <label for="<%= name %>"><%= name %></label>
     	    <input id="<%= name %>" name="<%= name %>"
     	           value="<%= request.getAttribute(name) %>"
     	           <% if (name.equals("password")) { %>
     	           type="password"
     	           <% } else { %>
     	           type="text"
     	           <% } %>
     	           /><br/>
     			<p class="section"><%= groupName  %></p>
     <%
+           }
+       }
     			Map keys = metadata.getKeysInGroup(groupName);
     			Iterator optionsList = keys.values().iterator();
     			while (optionsList.hasNext()) {
         			String name = (String)optionsList.next();
         			if (!name.equals("configured")) {
     %>
          				<label for="<%= name %>" title="<%= metadata.getOptionDescription(name) %>"><%= metadata.getOptionLabel(name) %></label>
     	    			<input id="<%= name %>" name="<%= name %>"
     	           			value="<%= request.getAttribute(name) %>"
     	           			<% if (name.equals("password")) { %>
     	           				type="password"
     	           			<% } else { %>
     	           				type="text"
     	           			<% } %>
     	           			alt="<%= metadata.getOptionDescription(name) %>"
     	           			/><br/>
     <%
+        			}
+    			}
+       		}
+       	}
     %>
     <input type="hidden" name="action" value="configure"/>
     <p><input type="submit" value="Save"/></p>
     			<input type="hidden" name="action" value="configure"/>
     			<p><input type="submit" value="Save"/></p>
     </form>

     /**
      *  '$RCSfile$'
      *    Purpose: A Class that implements a metadata catalog as a java Servlet
      *  Copyright: 2000 Regents of the University of California and the
      *  Copyright: 2006 Regents of the University of California and the
      *             National Center for Ecological Analysis and Synthesis
      *    Authors: Matt Jones, Dan Higgins, Jivka Bojilova, Chad Berkley, Matthew Perry
+     *
-...
     import java.io.BufferedInputStream;
     import java.io.File;
     import java.io.FileInputStream;
     import java.io.FileNotFoundException;
     import java.io.FileReader;
     import java.io.IOException;
     import java.io.PrintWriter;
     import java.io.Reader;
     import java.io.StringReader;
     import java.net.MalformedURLException;
     import java.net.URL;
-...
     import java.util.Hashtable;
     import java.util.Iterator;
     import java.util.Properties;
     import java.util.Set;
     import java.util.Timer;
     import java.util.Vector;
     import java.util.zip.ZipEntry;
-...
     import com.oreilly.servlet.multipart.Part;
     import edu.ucsb.nceas.utilities.Options;
     import edu.ucsb.nceas.utilities.OptionsMetadata;
     import edu.ucsb.nceas.metacat.spatial.SpatialHarvester;
     import edu.ucsb.nceas.metacat.spatial.SpatialQuery;
-...
                 // Initialize the properties file for our options
                 String dirPath = context.getRealPath(CONFIG_DIR);
                 File propertyFile = new File(dirPath, CONFIG_NAME);
                 String LOG_CONFIG_NAME = dirPath + "/log4j.properties";
                 PropertyConfigurator.configureAndWatch(LOG_CONFIG_NAME);
-...
                 // The servlet configuration parameters have not been set, so
                 // redirect to a web form for configuring metacat
                 // Add attributes to the request for all configuration options so
                 // that the configuration form can display the names and values of
                 // all configuration options.
                 // TODO: Still need to determine a way to get some metadata about
                 // each attribute to the form jsp, such as a description and
                 // possibly a label and widget type to use and possibly a
                 // controlled values list
                 // Load the properties metadata file to determine which properties
                 // need to be configured, and include this metadata object in
                 // the request so that the JSP page can use the metadata in
                 // constructing the editing form
                 String dirPath = this.getServletContext().getRealPath(CONFIG_DIR);
                 File metadataFile = new File(dirPath, CONFIG_NAME+".metadata");
                 OptionsMetadata metadata = null;
                 try {
                     Reader reader = new FileReader(metadataFile);
                     metadata = new OptionsMetadata(reader);
                     reader.close();
                     request.setAttribute("metadata", metadata);
                 } catch (IOException e) {
                     Logger logMetacat = Logger.getLogger(MetaCatServlet.class);
                     logMetacat.error("Error reading properties metadata: " +
                             e.getMessage());
+                }
                 // Also add the list of options and their values to the request
                 Enumeration properties = options.propertyNames();
                 while (properties.hasMoreElements()) {
                     String name = (String)properties.nextElement();
-...
                 properties = options.propertyNames();
                 request.setAttribute("optionslist", properties);
                 // Forward the request
                 // Forward the request to the JSP page
                 forwardRequest(request, response,
                         MetaCatUtil.getOption("configurationPage"));
             } else {
                 // The configuration form is being submitted and needs to be
                 // processed, setting the properties in the configuration file
                 // then restarting metacat
                 // then restart metacat
                 // TODO: Should first validate that the options provided are
                 // legitimate, and possibly even test them (for example, use
-...
                 try {
                     PrintWriter out = response.getWriter();
                     out.println("Error while forwarding to: " + destination);
                     e1.printStackTrace(out);
                     out.close();
                 } catch (IOException e) {
                     Logger logMetacat = Logger.getLogger(MetaCatServlet.class);

                  tofile="${build.war}/web.xml" />
            <copy file="lib/metacat.properties" todir="${war.webinf}"
                  filtering="yes" />
        	   <copy file="lib/metacat.properties.metadata" todir="${war.webinf}"
        	             filtering="no" />
            <copy todir="${war.webinf}" filtering="yes">
     	   	  <fileset dir="lib">
                <include name="skin.configs/**"/>
-...
              <fileset dir="lib">
                <exclude name="*.jar"/>
                <exclude name="*.properties"/>
              	<exclude name="*.metadata"/>
                <exclude name="web.xml"/>
                <exclude name="**/*.jpg"/>
                <exclude name="**/*.png"/>

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Revision 3099

Added by Matt Jones almost 18 years ago