/*
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    *
    * You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
   * or http://forgerock.org/license/CDDLv1.0.html.
   * See the License for the specific language governing permissions
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   * When distributing Covered Code, include this CDDL HEADER in each
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   *
   *      Copyright 2009-2010 Sun Microsystems, Inc.
   *      Portions copyright 2011-2012 ForgeRock AS
   */
  
  package org.forgerock.opendj.examples;
  
  import org.forgerock.i18n.LocalizableMessage;
  import org.forgerock.opendj.ldap.Connection;
  import org.forgerock.opendj.ldap.DN;
  import org.forgerock.opendj.ldap.ErrorResultException;
  import org.forgerock.opendj.ldap.LDAPConnectionFactory;
  import org.forgerock.opendj.ldap.schema.AttributeType;
  import org.forgerock.opendj.ldap.schema.MatchingRule;
  import org.forgerock.opendj.ldap.schema.ObjectClass;
  import org.forgerock.opendj.ldap.schema.Schema;
  import org.forgerock.opendj.ldap.schema.Syntax;
  
  /**
   * An example client application which prints a summary of the schema on the
   * named server as well as any warnings encountered while parsing the schema.
   * This example takes the following command line parameters:
   *
   * <pre>
   *  &lt;host> &lt;port> &lt;username> &lt;password>
   * </pre>
   */
  public final class ReadSchema {
      /**
       * Main method.
       *
       * @param args
       *            The command line arguments: host, port, username, password.
       */
      public static void main(final String[] args) {
          if (args.length != 4) {
              System.err.println("Usage: host port username password");
              System.exit(1);
          }
  
          // Parse command line arguments.
          final String hostName = args[0];
          final int port = Integer.parseInt(args[1]);
          final String userName = args[2];
          final String password = args[3];
  
          // Connect and bind to the server.
          final LDAPConnectionFactory factory = new LDAPConnectionFactory(hostName, port);
          Connection connection = null;
  
          try {
              connection = factory.getConnection();
              connection.bind(userName, password.toCharArray());
  
              // Read the schema.
              Schema schema = Schema.readSchemaForEntry(connection, DN.rootDN());
  
              System.out.println("Attribute types");
              for (AttributeType at : schema.getAttributeTypes()) {
                  System.out.println("  " + at.getNameOrOID());
              }
              System.out.println();
  
              System.out.println("Object classes");
              for (ObjectClass oc : schema.getObjectClasses()) {
                  System.out.println("  " + oc.getNameOrOID());
              }
              System.out.println();
  
              System.out.println("Matching rules");
              for (MatchingRule mr : schema.getMatchingRules()) {
                  System.out.println("  " + mr.getNameOrOID());
              }
              System.out.println();
  
              System.out.println("Syntaxes");
              for (Syntax s : schema.getSyntaxes()) {
                 System.out.println("  " + s.getDescription());
             }
             System.out.println();
 
             // Etc...
 
             System.out.println("WARNINGS");
             for (LocalizableMessage m : schema.getWarnings()) {
                 System.out.println("  " + m.toString());
             }
             System.out.println();
         } catch (final ErrorResultException e) {
             System.err.println(e.getMessage());
             System.exit(e.getResult().getResultCode().intValue());
             return;
         } finally {
             if (connection != null) {
                 connection.close();
             }
         }
     }
 
     private ReadSchema() {
         // Not used.
     }
 }