Java tutorial
/** * Academic Use Licence * * These licence terms apply to all licences granted by * OXFORD UNIVERSITY INNOVATION LIMITED whose administrative offices are at * University Offices, Wellington Square, Oxford OX1 2JD, United Kingdom ("OUI") * for use of BuRST, a generic tool for collating error and debug information from * a number of distributed tools, and provides a subscription service so that * end-users can be informed of messages ("the Software") through this website * https://github.com/OxBRCInformatics/BuRST (the "Website"). * * PLEASE READ THESE LICENCE TERMS CAREFULLY BEFORE DOWNLOADING THE SOFTWARE * THROUGH THIS WEBSITE. IF YOU DO NOT AGREE TO THESE LICENCE TERMS YOU SHOULD NOT * [REQUEST A USER NAME AND PASSWORD OR] DOWNLOAD THE SOFTWARE. * * THE SOFTWARE IS INTENDED FOR USE BY ACADEMICS CARRYING OUT RESEARCH AND NOT FOR * USE BY CONSUMERS OR COMMERCIAL BUSINESSES. * * 1. Academic Use Licence * * 1.1 The Licensee is granted a limited non-exclusive and non-transferable * royalty free licence to download and use the Software provided that the * Licensee will: * * (a) limit their use of the Software to their own internal academic * non-commercial research which is undertaken for the purposes of * education or other scholarly use; * * (b) not use the Software for or on behalf of any third party or to * provide a service or integrate all or part of the Software into a * product for sale or license to third parties; * * (c) use the Software in accordance with the prevailing instructions and * guidance for use given on the Website and comply with procedures on * the Website for user identification, authentication and access; * * (d) comply with all applicable laws and regulations with respect to their * use of the Software; and * * (e) ensure that the Copyright Notice (c) 2016, Oxford University * Innovation Ltd." appears prominently wherever the Software is * reproduced and is referenced or cited with the Copyright Notice when * the Software is described in any research publication or on any * documents or other material created using the Software. * * 1.2 The Licensee may only reproduce, modify, transmit or transfer the * Software where: * * (a) such reproduction, modification, transmission or transfer is for * academic, research or other scholarly use; * * (b) the conditions of this Licence are imposed upon the receiver of the * Software or any modified Software; * * (c) all original and modified Source Code is included in any transmitted * software program; and * * (d) the Licensee grants OUI an irrevocable, indefinite, royalty free, * non-exclusive unlimited licence to use and sub-licence any modified * Source Code as part of the Software. * * 1.3 OUI reserves the right at any time and without liability or prior * notice to the Licensee to revise, modify and replace the functionality * and performance of the access to and operation of the Software. * * 1.4 The Licensee acknowledges and agrees that OUI owns all intellectual * property rights in the Software. The Licensee shall not have any right, * title or interest in the Software. * * 1.5 This Licence will terminate immediately and the Licensee will no longer * have any right to use the Software or exercise any of the rights * granted to the Licensee upon any breach of the conditions in Section 1 * of this Licence. * * 2. Indemnity and Liability * * 2.1 The Licensee shall defend, indemnify and hold harmless OUI against any * claims, actions, proceedings, losses, damages, expenses and costs * (including without limitation court costs and reasonable legal fees) * arising out of or in connection with the Licensee's possession or use of * the Software, or any breach of these terms by the Licensee. * * 2.2 The Software is provided on an "as is" basis and the Licensee uses the * Software at their own risk. No representations, conditions, warranties or * other terms of any kind are given in respect of the the Software and all * statutory warranties and conditions are excluded to the fullest extent * permitted by law. Without affecting the generality of the previous * sentences, OUI gives no implied or express warranty and makes no * representation that the Software or any part of the Software: * * (a) will enable specific results to be obtained; or * * (b) meets a particular specification or is comprehensive within its field * or that it is error free or will operate without interruption; or * * (c) is suitable for any particular, or the Licensee's specific purposes. * * 2.3 Except in relation to fraud, death or personal injury, OUI"s liability to * the Licensee for any use of the Software, in negligence or arising in any * other way out of the subject matter of these licence terms, will not * extend to any incidental or consequential damages or losses, or any loss * of profits, loss of revenue, loss of data, loss of contracts or * opportunity, whether direct or indirect. * * 2.4 The Licensee hereby irrevocably undertakes to OUI not to make any claim * against any employee, student, researcher or other individual engaged by * OUI, being a claim which seeks to enforce against any of them any * liability whatsoever in connection with these licence terms or their * subject-matter. * * 3. General * * 3.1 Severability - If any provision (or part of a provision) of these licence * terms is found by any court or administrative body of competent * jurisdiction to be invalid, unenforceable or illegal, the other * provisions shall remain in force. * * 3.2 Entire Agreement - These licence terms constitute the whole agreement * between the parties and supersede any previous arrangement, understanding * or agreement between them relating to the Software. * * 3.3 Law and Jurisdiction - These licence terms and any disputes or claims * arising out of or in connection with them shall be governed by, and * construed in accordance with, the law of England. The Licensee * irrevocably submits to the exclusive jurisdiction of the English courts * for any dispute or claim that arises out of or in connection with these * licence terms. * * If you are interested in using the Software commercially, please contact * Oxford University Innovation Limited to negotiate a licence. * Contact details are enquiries@innovation.ox.ac.uk quoting reference 14422. */ package ox.softeng.burst.service.message; import ox.softeng.burst.domain.report.Message; import ox.softeng.burst.xml.MessageDTO; import com.rabbitmq.client.AMQP; import com.rabbitmq.client.Channel; import com.rabbitmq.client.DefaultConsumer; import com.rabbitmq.client.Envelope; import org.hibernate.HibernateException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import javax.persistence.EntityManagerFactory; import javax.xml.bind.JAXBContext; import javax.xml.bind.JAXBException; import javax.xml.bind.Unmarshaller; import java.io.IOException; import java.io.StringReader; /** * @since 05/05/2017 */ public class MessageConsumer extends DefaultConsumer { private static final Logger logger = LoggerFactory.getLogger(MessageConsumer.class); private final EntityManagerFactory entityManagerFactory; private final Unmarshaller unmarshaller; /** * Constructs a new instance and records its association to the passed-in channel. * * @param channel the channel to which this consumer is attached */ MessageConsumer(Channel channel, EntityManagerFactory entityManagerFactory) throws JAXBException { super(channel); this.entityManagerFactory = entityManagerFactory; unmarshaller = JAXBContext.newInstance(MessageDTO.class).createUnmarshaller(); } @Override public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException { String messageString = new String(body, "UTF-8"); String tag = properties.getMessageId() != null ? properties.getMessageId() : consumerTag; try { MessageDTO messageDto = (MessageDTO) unmarshaller.unmarshal(new StringReader(messageString)); Message message = Message.generateMessage(messageDto); logger.debug("{} - Received message", tag); logger.trace("{}", messageDto.toString()); message.save(entityManagerFactory); logger.info("{} - Received {} message from '{}'", tag, message.getSeverity(), message.getSource()); } catch (JAXBException e) { logger.error(tag + " - Could not unmarshall message\n" + messageString, e); } catch (HibernateException he) { logger.error(tag + " - Could not save message to database: " + he.getMessage(), he); } catch (Exception e) { logger.error(tag + " - Unhandled exception trying to process message", e); } } }