/*
    * The contents of this file are subject to the terms of the Common Development and
    * Distribution License (the License). You may not use this file except in compliance with the
    * License.
    *
    * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
    * specific language governing permission and limitations under the License.
    *
    * When distributing Covered Software, include this CDDL Header Notice in each file and include
   * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
   * Header, with the fields enclosed by brackets [] replaced by your own identifying
   * information: "Portions Copyright [year] [name of copyright owner]".
   *
   * Copyright 2015 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.DecodeException;
  import org.forgerock.opendj.ldap.Entry;
  import org.forgerock.opendj.ldap.EntryNotFoundException;
  import org.forgerock.opendj.ldap.LDAPConnectionFactory;
  import org.forgerock.opendj.ldap.LdapException;
  import org.forgerock.opendj.ldap.ResultCode;
  import org.forgerock.opendj.ldap.responses.Result;
  import org.forgerock.opendj.ldap.schema.Schema;
  import org.forgerock.opendj.ldap.schema.SchemaValidationPolicy;
  import org.forgerock.opendj.ldif.LDIFEntryReader;
  
  import java.io.IOException;
  import java.util.LinkedList;
  import java.util.List;
  
  /**
   * This example command-line client application validates an entry
   * against the directory server schema before adding it.
   *
   * <br>
   *
   * This example takes the following command line parameters:
   *
   * <pre>
   *  {@code <host> <port> <bindDN> <bindPassword>}
   * </pre>
   *
   * Then it reads an entry to add from System.in.
   * If the entry is valid according to the directory schema,
   * it tries to add the entry to the directory.
   */
  public final class UseSchema {
      /**
       * Main method.
       *
       * @param args
       *            The command line arguments: host, port, bindDN, bindPassword.
       */
      public static void main(final String[] args) {
          if (args.length != 4) {
              System.err.println("Usage: host port bindDN bindPassword");
              System.exit(1);
          }
  
          // Parse command line arguments.
          final String host         = args[0];
          final int    port         = Integer.parseInt(args[1]);
          final String bindDn       = args[2];
          final String bindPassword = args[3];
  
          // --- JCite ---
          // Connect and bind to the server.
          final LDAPConnectionFactory factory = new LDAPConnectionFactory(host, port);
          Connection connection = null;
  
          try {
              connection = factory.getConnection();
              connection.bind(bindDn, bindPassword.toCharArray());
  
              // Read the schema from the directory server.
              // If that fails, use the default schema from the LDAP SDK.
              Schema schema = null;
              try {
                  schema = Schema.readSchema(connection, DN.valueOf("cn=schema"));
              } catch (EntryNotFoundException e) {
                  System.err.println(e.getMessage());
                  schema = Schema.getDefaultSchema();
              } finally {
                  if (schema == null) {
                      System.err.println("Failed to get schema.");
                      System.exit(ResultCode.CLIENT_SIDE_LOCAL_ERROR.intValue());
                  }
              }
  
              // Read an entry from System.in.
              final LDIFEntryReader reader = new LDIFEntryReader(System.in);
              final Entry entry = reader.readEntry();
  
             // If the entry is valid, try to add it. Otherwise display errors.
             final List<LocalizableMessage> schemaErrors = new LinkedList<>();
             boolean conformsToSchema = schema.validateEntry(
                     entry, SchemaValidationPolicy.defaultPolicy(), schemaErrors);
             final String entryDn = entry.getName().toString();
             Result result = null;
             if (conformsToSchema) {
                 System.out.println("Processing ADD request for " + entryDn);
                 result = connection.add(entry);
             } else {
                 for (LocalizableMessage error : schemaErrors) {
                     System.err.println(error);
                 }
                 System.exit(ResultCode.CLIENT_SIDE_LOCAL_ERROR.intValue());
             }
 
             // Display the result. (A failed add results in an LdapException.)
             if (result != null) {
                 System.out.println("ADD operation successful for DN " + entryDn);
             }
         } catch (final LdapException e) {
             System.err.println(e.getMessage());
             System.exit(e.getResult().getResultCode().intValue());
         } catch (DecodeException e) {
             System.err.println(e.getMessage());
             System.exit(ResultCode.CLIENT_SIDE_DECODING_ERROR.intValue());
         } catch (IOException e) {
             System.err.println(e.getMessage());
             System.exit(ResultCode.CLIENT_SIDE_LOCAL_ERROR.intValue());
         } finally {
             if (connection != null) {
                 connection.close();
             }
         }
         // --- JCite ---
     }
 
     private UseSchema() {
         // Not used.
     }
 }