de.iritgo.aktario.jdbc.LoadUser.java Source code

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Here is the source code for de.iritgo.aktario.jdbc.LoadUser.java

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/**
 * This file is part of the Iritgo/Aktario Framework.
 *
 * Copyright (C) 2005-2011 Iritgo Technologies.
 * Copyright (C) 2003-2005 BueroByte GbR.
 *
 * Iritgo 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.
 */

package de.iritgo.aktario.jdbc;

import de.iritgo.aktario.core.Engine;
import de.iritgo.aktario.core.command.Command;
import de.iritgo.aktario.core.logger.Log;
import de.iritgo.aktario.framework.server.Server;
import de.iritgo.aktario.framework.user.User;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.ResultSetHandler;
import javax.sql.DataSource;
import java.sql.ResultSet;
import java.sql.SQLException;

/**
 * This command loads a single user with a specific unique id.
 *
 * <table>
 *   <tr><th>Parameter</th><th>Type</th><th>Description</th></tr>
 *   <tr><td>id</td><td>Long</td><td>The unique id of the user load.</td></tr>
 * </table>
 */
public class LoadUser extends Command {
    /**
     * Create a new <code>LoadUser</code> command.
     */
    public LoadUser() {
        super("persist.LoadUser");
    }

    /**
     * Perform the command.
     */
    public void perform() {
        if (properties.get("id") == null) {
            Log.logError("persist", "LoadUser", "Missing unique id for the user to load");

            return;
        }

        long uniqueId = ((Long) properties.get("id")).longValue();

        JDBCManager jdbcManager = (JDBCManager) Engine.instance().getManager("persist.JDBCManager");
        DataSource dataSource = jdbcManager.getDefaultDataSource();

        try {
            QueryRunner query = new QueryRunner(dataSource);
            final User user = (User) query.query("select * from IritgoUser where id=?", new Long(uniqueId),
                    new ResultSetHandler() {
                        public Object handle(ResultSet rs) throws SQLException {
                            if (rs.next()) {
                                User user = new User(rs.getString("name"), rs.getString("email"), rs.getInt("id"),
                                        rs.getString("password"), 0);

                                Server.instance().getUserRegistry().addUser(user);
                                Engine.instance().getBaseRegistry().add(user);

                                return user;
                            } else {
                                return null;
                            }
                        }
                    });

            if (user == null) {
                Log.logError("persist", "LoadUser", "Unable to find user with id " + uniqueId);

                return;
            }

            Log.logVerbose("persist", "LoadUser",
                    "Successfully loaded user " + user.getName() + ":" + user.getUniqueId());
        } catch (SQLException x) {
            Log.logError("persist", "LoadUser", "Error while loading the users: " + x);
        }
    }
}