Java tutorial
/* * TeleStax, Open Source Cloud Communications * Copyright 2011-2014, Telestax Inc and individual contributors * by the @authors tag. * * This program is free software: you can redistribute it and/or modify * under the terms of the GNU Affero 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/> * */ package org.mobicents.servlet.restcomm.dao.mybatis; import java.net.URI; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.ibatis.session.SqlSession; import org.apache.ibatis.session.SqlSessionFactory; import org.joda.time.DateTime; import static org.mobicents.servlet.restcomm.dao.DaoUtils.*; import org.mobicents.servlet.restcomm.dao.GatewaysDao; import org.mobicents.servlet.restcomm.entities.Gateway; import org.mobicents.servlet.restcomm.entities.Sid; import org.mobicents.servlet.restcomm.annotations.concurrency.ThreadSafe; /** * @author quintana.thomas@gmail.com (Thomas Quintana) */ @ThreadSafe public final class MybatisGatewaysDao implements GatewaysDao { private static final String namespace = "org.mobicents.servlet.sip.restcomm.dao.GatewaysDao."; private final SqlSessionFactory sessions; public MybatisGatewaysDao(final SqlSessionFactory sessions) { super(); this.sessions = sessions; } @Override public void addGateway(final Gateway gateway) { final SqlSession session = sessions.openSession(); try { session.insert(namespace + "addGateway", toMap(gateway)); session.commit(); } finally { session.close(); } } @Override public Gateway getGateway(final Sid sid) { final SqlSession session = sessions.openSession(); try { final Map<String, Object> result = session.selectOne(namespace + "getGateway", sid.toString()); if (result != null) { return toGateway(result); } else { return null; } } finally { session.close(); } } @Override public List<Gateway> getGateways() { final SqlSession session = sessions.openSession(); try { final List<Map<String, Object>> results = session.selectList(namespace + "getGateways"); final List<Gateway> gateways = new ArrayList<Gateway>(); if (results != null && !results.isEmpty()) { for (final Map<String, Object> result : results) { gateways.add(toGateway(result)); } } return gateways; } finally { session.close(); } } @Override public void removeGateway(final Sid sid) { final SqlSession session = sessions.openSession(); try { session.delete(namespace + "removeGateway", sid.toString()); session.commit(); } finally { session.close(); } } @Override public void updateGateway(final Gateway gateway) { final SqlSession session = sessions.openSession(); try { session.update(namespace + "updateGateway", toMap(gateway)); session.commit(); } finally { session.close(); } } private Gateway toGateway(final Map<String, Object> map) { final Sid sid = readSid(map.get("sid")); final DateTime dateCreated = readDateTime(map.get("date_created")); final DateTime dateUpdated = readDateTime(map.get("date_updated")); final String friendlName = readString(map.get("friendly_name")); final String password = readString(map.get("password")); final String proxy = readString(map.get("proxy")); final Boolean register = readBoolean(map.get("register")); final String userAgent = readString(map.get("user_name")); final Integer timeToLive = readInteger(map.get("ttl")); final URI uri = readUri(map.get("uri")); return new Gateway(sid, dateCreated, dateUpdated, friendlName, password, proxy, register, userAgent, timeToLive, uri); } private Map<String, Object> toMap(final Gateway gateway) { final Map<String, Object> map = new HashMap<String, Object>(); map.put("sid", writeSid(gateway.getSid())); map.put("date_created", writeDateTime(gateway.getDateCreated())); map.put("date_updated", writeDateTime(gateway.getDateUpdated())); map.put("friendly_name", gateway.getFriendlyName()); map.put("password", gateway.getPassword()); map.put("proxy", gateway.getProxy()); map.put("register", gateway.register()); map.put("user_name", gateway.getUserName()); map.put("ttl", gateway.getTimeToLive()); map.put("uri", writeUri(gateway.getUri())); return map; } }