Java tutorial
/** * Abiquo community edition * cloud management application for hybrid clouds * Copyright (C) 2008-2010 - Abiquo Holdings S.L. * * This application is free software; you can redistribute it and/or * modify it under the terms of the GNU LESSER GENERAL PUBLIC * LICENSE as published by the Free Software Foundation under * version 3 of the License * * This software 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 * LESSER GENERAL PUBLIC LICENSE v.3 for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ package com.abiquo.abiserver.abicloudws; import java.net.URI; import java.net.URISyntaxException; import java.util.Set; import org.hibernate.Session; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.abiquo.abiserver.business.hibernate.pojohb.infrastructure.DatacenterHB; import com.abiquo.abiserver.business.hibernate.pojohb.service.RemoteServiceHB; import com.abiquo.abiserver.business.hibernate.pojohb.service.RemoteServiceType; import com.abiquo.abiserver.business.hibernate.pojohb.virtualappliance.VirtualDataCenterHB; import com.abiquo.abiserver.exception.PersistenceException; import com.abiquo.abiserver.exception.RemoteServiceException; import com.abiquo.abiserver.persistence.DAOFactory; import com.abiquo.abiserver.persistence.dao.infrastructure.DataCenterDAO; import com.abiquo.abiserver.persistence.hibernate.HibernateDAOFactory; import com.abiquo.abiserver.pojo.infrastructure.PhysicalMachine; import com.abiquo.abiserver.pojo.infrastructure.Rack; import com.abiquo.abiserver.pojo.virtualappliance.VirtualAppliance; /** * This class agluttinate basic functionalities to interact with RemoteService * * @author abiquo */ public class RemoteServiceUtils { /** The logger object */ private final static Logger logger = LoggerFactory.getLogger(RemoteServiceUtils.class); /** * Private helper to get the virtual factory destination address from the virtual appliance * object. Requires a nested session. * * @param virtualAppliance the virtual appliance associated with a virtual datacenter * @return the address destination * @throws PersistenceException * @throws RemoteServiceException */ public static String getVirtualFactoryFromVA(final VirtualAppliance virtualAppliance) throws PersistenceException, RemoteServiceException { String destination = null; DAOFactory factory = HibernateDAOFactory.instance(); DataCenterDAO datacenterDAO = factory.getDataCenterDAO(); factory.beginConnection(); DatacenterHB myDatacenter = datacenterDAO .findById(virtualAppliance.getVirtualDataCenter().getIdDataCenter()); factory.endConnection(); Set<RemoteServiceHB> remoteServices = myDatacenter.getRemoteServicesHB(); for (RemoteServiceHB remoteServiceHB : remoteServices) { if (remoteServiceHB .getRemoteServiceType() == com.abiquo.abiserver.business.hibernate.pojohb.service.RemoteServiceType.VIRTUAL_FACTORY) { destination = remoteServiceHB.getUri(); break; } } if (destination == null) { throw new RemoteServiceException( "There is no Virtual Factory remote service configured for this datacenter. " + "Check datacenter configuration in Infrastructure view."); } return destination; } /** * Private helper to get the VirtualSystemMonitorAddress address from the virtual appliance * object * * @param virtualAppliance the virtual appliance associated with a virtual datacenter * @return the address destination * @throws PersistenceException * @throws RemoteServiceException */ public static String getVirtualSystemMonitorFromVA(final VirtualAppliance virtualAppliance) throws RemoteServiceException { return getVirtualSystemMonitor(virtualAppliance.getVirtualDataCenter().getIdDataCenter()); } public static String getVirtualSystemMonitor(final int datacenterId) throws RemoteServiceException { DAOFactory factory = HibernateDAOFactory.instance(); DataCenterDAO datacenterDAO = factory.getDataCenterDAO(); String destination = null; factory.beginConnection(); DatacenterHB myDatacenter = datacenterDAO.findById(datacenterId); factory.endConnection(); Set<RemoteServiceHB> remoteServices = myDatacenter.getRemoteServicesHB(); for (RemoteServiceHB remoteServiceHB : remoteServices) { if (remoteServiceHB .getRemoteServiceType() == com.abiquo.abiserver.business.hibernate.pojohb.service.RemoteServiceType.VIRTUAL_SYSTEM_MONITOR) { destination = remoteServiceHB.getUri(); break; } } if (destination == null) { throw new RemoteServiceException( "There is no VirtualSystemMonitor remote service configured for this datacenter. " + "Check datacenter configuration in Infrastructure view."); } return destination; } /** * Private helper to get the VirtualSystemMonitorAddress address from a physical machine object * * @param physicalMachine the physical machine * @return the address destination * @throws PersistenceException * @throws RemoteServiceException */ public static String getVirtualSystemMonitorFromPhysicalMachine(final PhysicalMachine physicalMachine) throws PersistenceException, RemoteServiceException { String destination = null; DAOFactory factory = HibernateDAOFactory.instance(); DataCenterDAO datacenterDAO = factory.getDataCenterDAO(); Rack rack = (Rack) physicalMachine.getAssignedTo(); factory.beginConnection(); DatacenterHB myDatacenter = datacenterDAO.findById(rack.getDataCenter().getId()); factory.endConnection(); Set<RemoteServiceHB> remoteServices = myDatacenter.getRemoteServicesHB(); for (RemoteServiceHB remoteServiceHB : remoteServices) { if (remoteServiceHB .getRemoteServiceType() == com.abiquo.abiserver.business.hibernate.pojohb.service.RemoteServiceType.VIRTUAL_SYSTEM_MONITOR) { destination = remoteServiceHB.getUri(); break; } } if (destination == null) { throw new RemoteServiceException( "There is no VirtualSystemMonitor remote service configured for this datacenter. " + "Check datacenter configuration in Infrastructure view."); } return destination; } /** * Private helper to get the NodeCollecto address from the datacenter id. Requires a nested * transaction * * @param datacenterId the datacenter ID * @return the address destination * @throws PersistenceException * @throws RemoteServiceException */ public static String getNodeCollectorFromDatacenter(final Integer datacenterId) throws PersistenceException, RemoteServiceException { String destination = null; DAOFactory factory = HibernateDAOFactory.instance(); DataCenterDAO datacenterDAO = factory.getDataCenterDAO(); DatacenterHB myDatacenter = datacenterDAO.findById(datacenterId); Set<RemoteServiceHB> remoteServices = myDatacenter.getRemoteServicesHB(); for (RemoteServiceHB remoteServiceHB : remoteServices) { if (remoteServiceHB .getRemoteServiceType() == com.abiquo.abiserver.business.hibernate.pojohb.service.RemoteServiceType.NODE_COLLECTOR) { destination = remoteServiceHB.getUri(); break; } } if (destination == null) { throw new RemoteServiceException( "There is no NodeCollector remote service configured for this datacenter." + "Check datacenter configuration in Infrastructure view."); } return destination; } /** * Private helper to get the Virtual system monitor address from the datacenter id. Requires a * nested transaction * * @param datacenterId the datacenter ID * @return the address destination * @throws PersistenceException * @throws RemoteServiceException */ public static String getVirtualSystemMonitorFromDatacenter(final Integer datacenterId) throws PersistenceException, RemoteServiceException { String destination = null; DAOFactory factory = HibernateDAOFactory.instance(); DataCenterDAO datacenterDAO = factory.getDataCenterDAO(); DatacenterHB myDatacenter = datacenterDAO.findById(datacenterId); Set<RemoteServiceHB> remoteServices = myDatacenter.getRemoteServicesHB(); for (RemoteServiceHB remoteServiceHB : remoteServices) { if (remoteServiceHB .getRemoteServiceType() == com.abiquo.abiserver.business.hibernate.pojohb.service.RemoteServiceType.VIRTUAL_SYSTEM_MONITOR) { destination = remoteServiceHB.getUri(); break; } } if (destination == null) { throw new RemoteServiceException( "There is no Virtual system monitor remote service configured for this datacenter." + " Check datacenter configuration in Infrastructure view."); } return destination; } /** * Private helper to get the NodeCollecto address from the datacenter id. Requires a nested * transaction * * @param datacenterId the datacenter ID * @param the hibernate session * @return the address destination * @throws PersistenceException * @throws RemoteServiceException */ @Deprecated // use RemoteServiceDAO public static String getNodeCollectorFromDatacenter(final Integer datacenterId, final Session session) throws PersistenceException, RemoteServiceException { String destination = null; DatacenterHB myDatacenter = (DatacenterHB) session.get(DatacenterHB.class, datacenterId); Set<RemoteServiceHB> remoteServices = myDatacenter.getRemoteServicesHB(); for (RemoteServiceHB remoteServiceHB : remoteServices) { if (remoteServiceHB .getRemoteServiceType() == com.abiquo.abiserver.business.hibernate.pojohb.service.RemoteServiceType.NODE_COLLECTOR) { destination = remoteServiceHB.getUri(); break; } } if (destination == null) { throw new RemoteServiceException( "There is no NodeCollector remote service configured for this datacenter." + " Check datacenter configuration in Infrastructure view."); } return destination; } /** * Private helper to get the DHCP address. Requires a nested trabsaction * * @param idDataCenter the datacenter id * @return the address destination * @throws RemoteServiceException * @throws PersistenceException */ public static String getDhcpFromDatacenter(final Integer idDataCenter) throws PersistenceException, RemoteServiceException { String dhcpComplexAddress = getRemoteServiceByType(idDataCenter, com.abiquo.abiserver.business.hibernate.pojohb.service.RemoteServiceType.DHCP_SERVICE.name()); URI addressAddressURL = null; try { addressAddressURL = new URI(dhcpComplexAddress); } catch (URISyntaxException e) { logger.error("The DHCP server address has a malformed URI:" + dhcpComplexAddress); } return addressAddressURL.getHost() + ":" + addressAddressURL.getPort(); } /** * Private helper to get the remote service type from the idDatacenter and remote service type * * @param idDataCenter the id datacenter * @param remoteServiceType the remote service type * @return the address * @throws PersistenceException * @throws RemoteServiceException */ private static String getRemoteServiceByType(final Integer idDataCenter, final String remoteServiceType) throws PersistenceException, RemoteServiceException { String destination = null; DAOFactory factory = HibernateDAOFactory.instance(); DataCenterDAO datacenterDAO = factory.getDataCenterDAO(); DatacenterHB myDatacenter = datacenterDAO.findById(idDataCenter); Set<RemoteServiceHB> remoteServices = myDatacenter.getRemoteServicesHB(); for (RemoteServiceHB remoteServiceHB : remoteServices) { if (remoteServiceHB.getRemoteServiceType() == RemoteServiceType.valueOf(remoteServiceType)) { destination = remoteServiceHB.getUri(); break; } } if (destination == null) { throw new RemoteServiceException( "There is no remote service of type: " + remoteServiceType + "configured for this datacenter."); } return destination; } /** * Checks the remote services from the virtual appliance * * @param virtualAppliance the virtual appliance to check its remote services * @throws RemoteServiceException, if a remote service check fails */ public static void checkRemoteServicesFromVA(final VirtualAppliance virtualAppliance) throws RemoteServiceException { DAOFactory factory = HibernateDAOFactory.instance(); DataCenterDAO datacenterDAO = factory.getDataCenterDAO(); factory.beginConnection(); DatacenterHB myDatacenter = datacenterDAO .findById(virtualAppliance.getVirtualDataCenter().getIdDataCenter()); factory.endConnection(); Set<RemoteServiceHB> remoteServices = myDatacenter.getRemoteServicesHB(); for (RemoteServiceHB remoteServiceHB : remoteServices) { // For DHCP service and SSM the check is not done if (!remoteServiceHB.getRemoteServiceType().canBeChecked() || remoteServiceHB.getRemoteServiceType() == RemoteServiceType.STORAGE_SYSTEM_MONITOR) { continue; } RemoteServiceClient remoteServiceClient = new RemoteServiceClient(remoteServiceHB.getUri()); remoteServiceClient.ping(); } } /** * Checks the remote service SSM * * @param virtualDatacenter * @throws RemoteServiceException */ public static void checkRemoteServiceSSM(final VirtualDataCenterHB virtualDatacenter) throws RemoteServiceException { DAOFactory factory = HibernateDAOFactory.instance(); DataCenterDAO datacenterDAO = factory.getDataCenterDAO(); factory.beginConnection(); DatacenterHB myDatacenter = datacenterDAO.findById(virtualDatacenter.getIdDataCenter()); factory.endConnection(); Set<RemoteServiceHB> remoteServices = myDatacenter.getRemoteServicesHB(); for (RemoteServiceHB remoteServiceHB : remoteServices) { // Check SSM if (remoteServiceHB.getRemoteServiceType().canBeChecked() && remoteServiceHB.getRemoteServiceType() == RemoteServiceType.STORAGE_SYSTEM_MONITOR) { RemoteServiceClient remoteServiceClient = new RemoteServiceClient(remoteServiceHB.getUri()); remoteServiceClient.ping(); } } } }