text: package org.apache.archiva.web.security;
  /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  import org.apache.archiva.admin.model.RepositoryAdminException;
  import org.apache.archiva.admin.model.runtime.RedbackRuntimeConfigurationAdmin;
  import org.apache.archiva.components.cache.Cache;
  import org.apache.archiva.redback.users.AbstractUserManager;
  import org.apache.archiva.redback.users.User;
  import org.apache.archiva.redback.users.UserManager;
  import org.apache.archiva.redback.users.UserManagerException;
  import org.apache.archiva.redback.users.UserNotFoundException;
  import org.apache.archiva.redback.users.UserQuery;
  import org.springframework.context.ApplicationContext;
  import org.springframework.stereotype.Service;
  
  import javax.annotation.PostConstruct;
  import javax.inject.Inject;
  import javax.inject.Named;
  import java.util.ArrayList;
  import java.util.LinkedHashMap;
  import java.util.List;
  import java.util.Map;
  
  /**
   * @author Olivier Lamy
   * @since 1.4-M4
   */
  @Service("userManager#archiva")
  public class ArchivaConfigurableUsersManager
      extends AbstractUserManager
  {
  
      @Inject
      private RedbackRuntimeConfigurationAdmin redbackRuntimeConfigurationAdmin;
  
      @Inject
      private ApplicationContext applicationContext;
  
      private Map<String, UserManager> userManagerPerId;
  
      @Inject
      @Named(value = "cache#users")
      private Cache<String, User> usersCache;
  
      private boolean useUsersCache;
  
      @PostConstruct
      @Override
      public void initialize()
      {
          try
          {
              List<String> userManagerImpls =
                  redbackRuntimeConfigurationAdmin.getRedbackRuntimeConfiguration().getUserManagerImpls();
              log.info( "use userManagerImpls: '{}'", userManagerImpls );
  
              userManagerPerId = new LinkedHashMap<>( userManagerImpls.size() );
              for ( String id : userManagerImpls )
              {
                  UserManager userManagerImpl = applicationContext.getBean( "userManager#" + id, UserManager.class );
                  setUserManagerImpl( userManagerImpl );
                  userManagerPerId.put( id, userManagerImpl );
              }
              this.usersCache.clear();
              this.useUsersCache = redbackRuntimeConfigurationAdmin.getRedbackRuntimeConfiguration().isUseUsersCache();
          }
          catch ( RepositoryAdminException e )
          {
              // revert to a default one ?
              log.error( e.getMessage(), e );
              throw new RuntimeException( e.getMessage(), e );
          }
      }
  
      protected boolean useUsersCache()
      {
          return this.useUsersCache;
      }
  
      @Override
      public User addUser( User user )
          throws UserManagerException
      {
          user = userManagerPerId.get( user.getUserManagerId() ).addUser( user );
  
          if ( useUsersCache() )
          {
              usersCache.put( user.getUsername(), user );
          }
  
          return user;
      }
  
      @Override
      public void addUserUnchecked( User user )
          throws UserManagerException
      {
          userManagerPerId.get( user.getUserManagerId() ).addUserUnchecked( user );
  
          if ( useUsersCache() )
          {
              usersCache.put( user.getUsername(), user );
          }
      }
  
      @Override
      public User createUser( String username, String fullName, String emailAddress )
          throws UserManagerException
      {
          Exception lastException = null;
          boolean allFailed = true;
          User user = null;
          for ( UserManager userManager : userManagerPerId.values() )
          {
              try
              {
                  if ( !userManager.isReadOnly() )
                  {
                      user = userManager.createUser( username, fullName, emailAddress );
                      allFailed = false;
                  }
              }
              catch ( Exception e )
              {
                  lastException = e;
              }
          }
          if ( lastException != null && allFailed )
          {
              throw new UserManagerException( lastException.getMessage(), lastException );
          }
          return user;
      }
  
      @Override
      public UserQuery createUserQuery()
      {
          return userManagerPerId.values().iterator().next().createUserQuery();
      }
  
  
      @Override
      public void deleteUser( String username )
          throws UserNotFoundException, UserManagerException
      {
          Exception lastException = null;
          boolean allFailed = true;
          User user = null;
          for ( UserManager userManager : userManagerPerId.values() )
          {
              try
              {
                  if ( !userManager.isReadOnly() )
                  {
                      userManager.deleteUser( username );
                      allFailed = false;
                  }
              }
              catch ( Exception e )
              {
                  lastException = e;
              }
          }
          if ( lastException != null && allFailed )
          {
              throw new UserManagerException( lastException.getMessage(), lastException );
          }
      }
  
      @Override
      public void eraseDatabase()
      {
          for ( UserManager userManager : userManagerPerId.values() )
          {
              userManager.eraseDatabase();
          }
      }
  
      @Override
      public User findUser( String username, boolean useCache )
          throws UserNotFoundException, UserManagerException
      {
          User user = null;
          if ( useUsersCache() && useCache )
          {
              user = usersCache.get( username );
              if ( user != null )
              {
                  return user;
              }
  
          }
          Exception lastException = null;
          for ( UserManager userManager : userManagerPerId.values() )
          {
              try
              {
                  user = userManager.findUser( username );
                  if ( user != null )
                  {
                      if ( useUsersCache() )
                      {
                          usersCache.put( username, user );
                      }
                      return user;
                  }
              }
              catch ( UserNotFoundException e )
              {
                  lastException = e;
              }
              catch ( Exception e )
              {
                  lastException = e;
              }
          }
  
          if ( user == null )
          {
              if ( lastException != null )
              {
                  if ( lastException instanceof UserNotFoundException )
                  {
                      throw (UserNotFoundException) lastException;
                  }
                  throw new UserManagerException( lastException.getMessage(), lastException );
              }
          }
  
          return user;
      }
  
      @Override
      public User findUser( String username )
          throws UserManagerException
      {
          return findUser( username, useUsersCache() );
      }
  
  
      @Override
      public User getGuestUser()
       throws UserNotFoundException, UserManagerException
      {
          return findUser( GUEST_USERNAME );
      }
  
      @Override
      public List<User> findUsersByEmailKey( String emailKey, boolean orderAscending )
          throws UserManagerException
      {
          List<User> users = new ArrayList<>();
  
          for ( UserManager userManager : userManagerPerId.values() )
          {
              List<? extends User> found = userManager.findUsersByEmailKey( emailKey, orderAscending );
              if ( found != null )
              {
                  users.addAll( found );
              }
          }
          return users;
      }
  
      @Override
      public List<User> findUsersByFullNameKey( String fullNameKey, boolean orderAscending )
          throws UserManagerException
      {
          List<User> users = new ArrayList<>();
  
          for ( UserManager userManager : userManagerPerId.values() )
          {
              List<? extends User> found = userManager.findUsersByFullNameKey( fullNameKey, orderAscending );
              if ( found != null )
              {
                  users.addAll( found );
              }
          }
          return users;
      }
  
      @Override
      public List<User> findUsersByQuery( UserQuery query )
          throws UserManagerException
      {
          List<User> users = new ArrayList<>();
  
          for ( UserManager userManager : userManagerPerId.values() )
          {
              List<? extends User> found = userManager.findUsersByQuery( query );
              if ( found != null )
              {
                  users.addAll( found );
              }
          }
          return users;
      }
  
      @Override
      public List<User> findUsersByUsernameKey( String usernameKey, boolean orderAscending )
          throws UserManagerException
      {
          List<User> users = new ArrayList<>();
  
          for ( UserManager userManager : userManagerPerId.values() )
          {
              List<? extends User> found = userManager.findUsersByUsernameKey( usernameKey, orderAscending );
              if ( found != null )
              {
                  users.addAll( found );
              }
          }
          return users;
      }
  
      @Override
      public String getId()
      {
          return "archiva-configurable";
      }
  
      @Override
      public List<User> getUsers()
          throws UserManagerException
      {
          List<User> users = new ArrayList<>();
  
          for ( UserManager userManager : userManagerPerId.values() )
          {
              List<? extends User> found = userManager.getUsers();
              if ( found != null )
              {
                  users.addAll( found );
              }
          }
          return users;
      }
  
      @Override
      public List<User> getUsers( boolean orderAscending )
          throws UserManagerException
      {
          List<User> users = new ArrayList<>();
  
          for ( UserManager userManager : userManagerPerId.values() )
          {
              List<? extends User> found = userManager.getUsers( orderAscending );
              if ( found != null )
              {
                  users.addAll( found );
              }
          }
          return users;
      }
  
      @Override
      public boolean isReadOnly()
      {
          boolean readOnly = false;
  
          for ( UserManager userManager : userManagerPerId.values() )
          {
              readOnly = readOnly || userManager.isReadOnly();
          }
          return readOnly;
      }
  
      @Override
      public User updateUser( User user )
          throws UserNotFoundException, UserManagerException
      {
  
          UserManager userManager = userManagerPerId.get( user.getUserManagerId() );
  
          user = userManager.updateUser( user );
  
          if ( useUsersCache() )
          {
              usersCache.put( user.getUsername(), user );
          }
  
          return user;
      }
  
      @Override
      public User updateUser( User user, boolean passwordChangeRequired )
          throws UserNotFoundException, UserManagerException
      {
          user = userManagerPerId.get( user.getUserManagerId() ).updateUser( user, passwordChangeRequired );
  
          if ( useUsersCache() )
          {
              usersCache.put( user.getUsername(), user );
          }
  
          return user;
      }
  
      public void setUserManagerImpl( UserManager userManagerImpl )
      {
          // not possible here but we know so no need of log.error
          log.debug( "setUserManagerImpl cannot be used in this implementation" );
      }
  
      @Override
      public User createGuestUser()
          throws UserManagerException
      {
          Exception lastException = null;
          boolean allFailed = true;
          User user = null;
          for ( UserManager userManager : userManagerPerId.values() )
          {
              try
              {
                  if ( !userManager.isReadOnly() )
                  {
                      user = userManager.createGuestUser();
                      allFailed = false;
                  }
              }
              catch ( Exception e )
              {
                  lastException = e;
              }
          }
          if ( lastException != null && allFailed )
          {
              throw new UserManagerException( lastException.getMessage(), lastException );
          }
          return user;
      }
  
  
      @Override
      public boolean userExists( String userName )
          throws UserManagerException
      {
          Exception lastException = null;
          boolean allFailed = true;
          boolean exists = false;
          for ( UserManager userManager : userManagerPerId.values() )
          {
              try
              {
  
                  if ( userManager.userExists( userName ) )
                  {
                      exists = true;
                  }
                  allFailed = false;
  
              }
              catch ( Exception e )
              {
                  lastException = e;
              }
          }
          if ( lastException != null && allFailed )
          {
              throw new UserManagerException( lastException.getMessage(), lastException );
          }
          return exists;
      }
  
  
      @Override
      public boolean isFinalImplementation()
      {
          return false;
      }
  
      @Override
      public String getDescriptionKey()
      {
          return "archiva.redback.usermanager.configurable.archiva";
      }
  
  
  }
  