Java tutorial
/* * The contents of this file are subject to the Mozilla Public License * Version 1.1 (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.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the * License for the specific language governing rights and limitations * under the License. * * The Original Code is Ziptie Client Framework. * * The Initial Developer of the Original Code is AlterPoint. * Portions created by AlterPoint are Copyright (C) 2006, * AlterPoint, Inc. All Rights Reserved. */ package org.ziptie.server.job.backup; import java.io.File; import javax.xml.stream.XMLStreamException; import org.hibernate.SessionFactory; import org.hibernate.classic.Session; import org.ziptie.common.StringElf; import org.ziptie.credentials.CredentialSet; import org.ziptie.net.client.Backup; import org.ziptie.net.client.ConnectionPath; import org.ziptie.protocols.ProtocolSet; import org.ziptie.provider.credentials.CredentialsProvider; import org.ziptie.provider.devices.ZDeviceCore; import org.ziptie.server.dispatcher.Outcome; import org.ziptie.server.job.AbstractAdapterTask; import org.ziptie.server.job.AdapterEndpointElf; import org.ziptie.server.job.internal.CoreJobsActivator; import org.ziptie.zap.jta.TransactionElf; /** * The {@link BackupTask} class provides functionality for backing up all of device's configuration files and parsing various * device response to build a normalized data set about that device. */ public class BackupTask extends AbstractAdapterTask { /** * Creates a new {@link BackupTask} instance and associates the specified {@link ZDeviceCore} object with it. * * @param device The device to be associated with this {@link BackupTask} instance. */ BackupTask(ZDeviceCore device) { super("backup", device); //$NON-NLS-1$ } /** {@inheritDoc} */ @Override protected Outcome performTask(CredentialSet credentialSet, ProtocolSet protocolSet, ConnectionPath connectionPath) throws Exception { ZDeviceCore device = getDevice(); String ipAddress = device.getIpAddress(); String adapterId = device.getAdapterId(); String deviceId = Integer.toString(device.getDeviceId()); SessionFactory sessionFactory = CoreJobsActivator.getSessionFactory(); String backupOutput = null; File modelXmlFile = null; boolean success = false; TransactionElf.beginOrJoinTransaction(); // This thread OWNS this transaction try { // Execute the backup backupOutput = AdapterEndpointElf.getEndpoint(Backup.class, adapterId).backup(connectionPath); String filename = (ipAddress + "_backup.xml").replaceAll(":+", "."); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ modelXmlFile = StringElf.stringToTempFile(filename, backupOutput); backupOutput = null; Session currentSession = sessionFactory.getCurrentSession(); StaxProcessor processor = new StaxProcessor(); processor.process(device, modelXmlFile); currentSession.flush(); // Save the protocol set and credential set that were both successfully used to backup the device // and map this information to the device itself. CredentialsProvider credProvider = CoreJobsActivator.getCredentialsProvider(); credProvider.mapDeviceToProtocolSet(deviceId, protocolSet); credProvider.mapDeviceToCredentialSet(deviceId, credentialSet); success = true; return Outcome.SUCCESS; } // TODO dwhite: This is for checking to see the contents of a problematic XML related to // bug #635 (http://bugs.ziptie.org/show_bug.cgi?id=635) catch (XMLStreamException xse) { throw new XMLStreamException( xse.getMessage() + "\nProblematic XML:\n" + (backupOutput != null ? backupOutput : "null"), xse); } finally { if (modelXmlFile != null && modelXmlFile.exists()) { modelXmlFile.delete(); } if (success) { TransactionElf.commit(); } else { TransactionElf.rollback(); } } } }