DeactivateUsersHandler.java

package org.sigmah.server.handler;

/*
 * #%L
 * Sigmah
 * %%
 * Copyright (C) 2010 - 2016 URD
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import org.apache.commons.collections4.CollectionUtils;
import org.sigmah.server.dao.UserDAO;
import org.sigmah.server.dispatch.impl.UserDispatch.UserExecutionContext;
import org.sigmah.server.domain.User;
import org.sigmah.server.handler.base.AbstractCommandHandler;
import org.sigmah.shared.command.DeactivateUsers;
import org.sigmah.shared.command.result.VoidResult;
import org.sigmah.shared.dispatch.CommandException;
import org.sigmah.shared.dto.UserDTO;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.inject.Inject;
import com.google.inject.persist.Transactional;
import java.util.List;

/**
 * Deactivates or activates the given users.
 * 
 * @author Maxime Lombard (mlombard@ideia.fr) (v2.0)
 * @author Denis Colliot (dcolliot@ideia.fr) (v2.0)
 * @author Raphaël Calabro (rcalabro@ideia.fr)
 */
public class DeactivateUsersHandler extends AbstractCommandHandler<DeactivateUsers, VoidResult> {

	/**
	 * Logger.
	 */
	private final static Logger LOG = LoggerFactory.getLogger(DeactivateUsersHandler.class);

	private final UserDAO userDAO;

	@Inject
	public DeactivateUsersHandler(final UserDAO userDAO) {
		this.userDAO = userDAO;
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public VoidResult execute(final DeactivateUsers cmd, final UserExecutionContext context) throws CommandException {

		if (CollectionUtils.isEmpty(cmd.getUsers())) {
			return new VoidResult();
		}

		performDeactivation(cmd.getUsers(), context);

		return new VoidResult();
	}

	/**
	 * Deactivate the given users in a transaction.
	 * 
	 * @param users List of users to deactivate. 
	 * @param context Execution context.
	 */
	@Transactional
	protected void performDeactivation(final List<UserDTO> users, final UserExecutionContext context) {
		for (final UserDTO userDTO : users) {
			LOG.debug("Updating activated state of the following user : {}", userDTO);

			User user = userDAO.findById(userDTO.getId());
			if (user == null) {
				user = userDAO.findUserByEmail(userDTO.getEmail());
			}

			user.setActive(!userDTO.getActive());
			userDAO.persist(user, context.getUser());
		}
	}

}