CssRegistry.java

/**
Copyright (c) 2011, SOCIETIES Consortium (WATERFORD INSTITUTE OF TECHNOLOGY (TSSG), HERIOT-WATT UNIVERSITY (HWU), SOLUTA.NET 

(SN), GERMAN AEROSPACE CENTRE (Deutsches Zentrum fuer Luft- und Raumfahrt e.V.) (DLR), Zavod za varnostne tehnologije
informacijske družbe in elektronsko poslovanje (SETCCE), INSTITUTE OF COMMUNICATION AND COMPUTER SYSTEMS (ICCS), LAKE
COMMUNICATIONS (LAKE), INTEL PERFORMANCE LEARNING SOLUTIONS LTD (INTEL), PORTUGAL TELECOM INOVAÇÃO, SA (PTIN), IBM Corp (IBM),
INSTITUT TELECOM (ITSUD), AMITEC DIACHYTI EFYIA PLIROFORIKI KAI EPIKINONIES ETERIA PERIORISMENIS EFTHINIS (AMITEC), TELECOM 
ITALIA S.p.a.(TI), TRIALOG (TRIALOG), Stiftelsen SINTEF (SINTEF), NEC EUROPE LTD (NEC))
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following
conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
   disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.societies.css.cssRegistry;

import java.util.ArrayList;
import java.util.List;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.criterion.Restrictions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import org.societies.api.internal.css.cssRegistry.ICssRegistry;
import org.societies.api.internal.css.cssRegistry.exception.CssRegistrationException;

import org.societies.api.schema.cssmanagement.CssInterfaceResult;
import org.societies.api.schema.cssmanagement.CssNode;
import org.societies.api.schema.cssmanagement.CssRecord;
import org.societies.api.schema.cssmanagement.CssRequest;
import org.societies.css.cssRegistry.model.CssFriendEntry;
import org.societies.css.cssRegistry.model.CssNodeEntry;
import org.societies.css.cssRegistry.model.CssRegistryEntry;
import org.societies.css.cssRegistry.model.CssRequestEntry;
import org.societies.api.schema.cssmanagement.CssRequestStatusType;

public class CssRegistry implements ICssRegistry {
	private SessionFactory sessionFactory;
	private static Logger log = LoggerFactory.getLogger(CssRegistry.class);

	/**
	 * @return the sessionFactory
	 */
	public SessionFactory getSessionFactory() {
		return sessionFactory;
	}

	/**
	 * @param sessionFactory
	 *            the sessionFactory to set
	 */
	public void setSessionFactory(SessionFactory sessionFactory) {
		this.sessionFactory = sessionFactory;
	}

	public CssRegistry() {
		log.debug("CSS registry bundle instantiated.");
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.societies.api.internal.css.cssRegistry.ICssRegistry#registerCss(org
	 * .societies.api.internal.css.management.CSSRecord)
	 */
	@Override
	public CssInterfaceResult registerCss(CssRecord cssRecord)
			throws CssRegistrationException {
		// TODO Auto-generated method stub
		
		log.debug("CSSRegistry registerCss Called : ");
		log.debug("CSSRegistry cssRecord node Size passed in is : " +cssRecord.getCssNodes().size());

		CssInterfaceResult result = new CssInterfaceResult();

		Session session = sessionFactory.openSession();
		CssRegistryEntry tmpRegistryEntry = null;
		CssNodeEntry tmpNodeEntry = null;

		Transaction t = session.beginTransaction();
		try {

			if (cssRecord.getCssNodes() != null) {
				log.debug("CSSRegistry Node Size is : " +cssRecord.getCssNodes().size());
				for (CssNode cssNode : cssRecord.getCssNodes()) {
					tmpNodeEntry = new CssNodeEntry(cssNode.getIdentity(),
						cssNode.getStatus(), cssNode.getType(), cssNode.getCssNodeMAC(), cssNode.getInteractable(), false);
					session.save(tmpNodeEntry);
					log.debug("CSSRegistry Node entry saved");
				}
			}
			if (cssRecord.getArchiveCSSNodes() != null) {
				for (CssNode cssNode : cssRecord.getArchiveCSSNodes()) {
					tmpNodeEntry = new CssNodeEntry(cssNode.getIdentity(),
						cssNode.getStatus(), cssNode.getType(), cssNode.getCssNodeMAC(), cssNode.getInteractable(), true);
					session.save(tmpNodeEntry);
					log.debug("CSSRegistry Archived Node entry saved");
				}
			}
			tmpRegistryEntry = new CssRegistryEntry(
					cssRecord.getCssIdentity(), cssRecord.getEmailID(),
					cssRecord.getEntity(), cssRecord.getForeName(),
					cssRecord.getHomeLocation(), cssRecord.getName(),
					cssRecord.getSex(), cssRecord.getWorkplace(),
					cssRecord.getPosition());

			session.save(tmpRegistryEntry);
			log.debug("CSSRegistry record entry saved");

			t.commit();

		} catch (Exception e) {
			t.rollback();
			e.printStackTrace();
			throw new CssRegistrationException(e);
		} finally {
			if (session != null) {
				session.close();
			}
		}

		result.setResultStatus(true);
		result.setProfile(cssRecord);
		log.debug("CSSRegistry cssRecord node Size passed in is : " +cssRecord.getCssNodes().size());
		for (int index = 0; index < cssRecord.getCssNodes().size(); index++) {
			log.debug("CSSRegistry cssRecord node identity is : " +cssRecord.getCssNodes().get(index).getIdentity());
		}
			//

		return result;

	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.societies.api.internal.css.cssRegistry.ICssRegistry#unregisterCss
	 * (org.societies.api.internal.css.management.CSSRecord)
	 */
	@Override
	public void unregisterCss(CssRecord cssRecord)
			throws CssRegistrationException {
		// TODO Auto-generated method stub
		log.debug("CSSRegistry unregisterCss Called");
		
		Session session = sessionFactory.openSession();
		CssRegistryEntry tmpRegistryEntry = null;
		CssNodeEntry tmpNodeEntry = null;

		Transaction t = session.beginTransaction();
		try {

			if (cssRecord.getCssNodes() != null) {
				for (CssNode cssNode : cssRecord.getCssNodes()) {
					tmpNodeEntry = new CssNodeEntry(cssNode.getIdentity(),
						cssNode.getStatus(), cssNode.getType(), cssNode.getCssNodeMAC(), cssNode.getInteractable(), false);
					session.delete(tmpNodeEntry);
					log.debug("CSSRegistry Node entry deleted");
				}
			}
			
			if (cssRecord.getArchiveCSSNodes() != null) {
				for (CssNode cssNode : cssRecord.getArchiveCSSNodes()) {
					tmpNodeEntry = new CssNodeEntry(cssNode.getIdentity(),
						cssNode.getStatus(), cssNode.getType(), cssNode.getCssNodeMAC(), cssNode.getInteractable(), true);
					session.delete(tmpNodeEntry);
					log.debug("CSSRegistry Archived Node entry deleted");
				}
			}
			
			tmpRegistryEntry = new CssRegistryEntry(
					cssRecord.getCssIdentity(), cssRecord.getEmailID(),
					cssRecord.getEntity(), cssRecord.getForeName(),
					cssRecord.getHomeLocation(), cssRecord.getName(),
					cssRecord.getSex(), cssRecord.getWorkplace(),
					cssRecord.getPosition());

			session.delete(tmpRegistryEntry);
			log.debug("CSSRegistry record deleted");

			t.commit();

		} catch (Exception e) {
			t.rollback();
			e.printStackTrace();
			throw new CssRegistrationException(e);
		} finally {
			if (session != null) {
				session.close();
			}
		}

	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.societies.api.internal.css.cssRegistry.ICssRegistry#registerCss(org
	 * .societies.api.internal.css.management.CSSRecord)
	 */
	@SuppressWarnings("unchecked")
	@Override
	public CssRecord getCssRecord() throws CssRegistrationException {
		Session session = sessionFactory.openSession();
		CssRecord cssDetails = new CssRecord();
		CssNode cssNodeDetails = null;
		
		log.debug("CSSRegistry getCssRecord Called : ");

		Transaction t = session.beginTransaction();
		try {

			List<CssRegistryEntry> tmpRegistryEntryList = session
					.createCriteria(CssRegistryEntry.class).list();
			
			//Ensure it exists before we start reading values
			if ((tmpRegistryEntryList != null) && (tmpRegistryEntryList.size() > 0))
			{	

				cssDetails.setEntity(tmpRegistryEntryList.get(0).getEntity());
				cssDetails.setForeName(tmpRegistryEntryList.get(0).getForeName());
				cssDetails.setName(tmpRegistryEntryList.get(0).getName());
				cssDetails.setEmailID(tmpRegistryEntryList.get(0).getEmailID());
				cssDetails.setSex(tmpRegistryEntryList.get(0).getSex());
				cssDetails.setHomeLocation(tmpRegistryEntryList.get(0)
						.getHomeLocation());
				cssDetails.setCssIdentity(tmpRegistryEntryList.get(0)
						.getCssIdentity());
				cssDetails.setWorkplace(tmpRegistryEntryList.get(0).getWorkplace());
				cssDetails.setPosition(tmpRegistryEntryList.get(0).getPosition());

				List<CssNodeEntry> tmpNodeRegistryEntryList = session
						.createCriteria(CssNodeEntry.class).list();

			
				log.debug("CSSRegistry tmpNodeRegistryEntryList size : " +tmpNodeRegistryEntryList.size());
			
				if (tmpNodeRegistryEntryList != null) {
					for (CssNodeEntry savedNode : tmpNodeRegistryEntryList) {
						cssNodeDetails = new CssNode();
						cssNodeDetails.setIdentity(savedNode.getNodeIdentity());
						cssNodeDetails.setType(savedNode.getType());
						cssNodeDetails.setStatus(savedNode.getStatus());
						cssNodeDetails.setCssNodeMAC(savedNode.getcssNodeMAC());
						cssNodeDetails.setInteractable(savedNode.getInteractable());

						if (savedNode.getArchived() == true) 
							cssDetails.getArchiveCSSNodes().add(cssNodeDetails);
						else
							cssDetails.getCssNodes().add(cssNodeDetails);
					}
				}
			}

		} catch (Exception e) {
			t.rollback();
			e.printStackTrace();
			throw new CssRegistrationException(e);
		} finally {
			if (session != null) {
				session.close();
			}
		}
		return cssDetails;

	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.societies.api.internal.css.cssRegistry.ICssRegistry#registerCss(org
	 * .societies.api.internal.css.management.CSSRecord)
	 */
	@SuppressWarnings("unchecked")
	@Override
	public void updateCssRecord(CssRecord cssDetails)
			throws CssRegistrationException {

		log.debug("CSSRegistry updateCssRecord Called : ");
		
		Session session = sessionFactory.openSession();
		CssNodeEntry tmpNodeEntry = null;

		Transaction t = session.beginTransaction();
		try {

			// Clear the nodeEntry table, we will re-populate it
			List<CssNodeEntry> tmpNodeRegistryEntryList = session
					.createCriteria(CssNodeEntry.class).list();
			session.delete(tmpNodeRegistryEntryList);
			log.debug("CSSRegistry Node tables cleared");

			if (cssDetails.getCssNodes() != null) {
				for (CssNode cssNode : cssDetails.getCssNodes()) {
					tmpNodeEntry = new CssNodeEntry(cssNode.getIdentity(),
						cssNode.getStatus(), cssNode.getType(), cssNode.getCssNodeMAC(), cssNode.getInteractable(), false);
					session.save(tmpNodeEntry);
					log.debug("CSSRegistry Node entry saved");
				}
			}

			if (cssDetails.getArchiveCSSNodes() != null) {
				for (CssNode cssNode : cssDetails.getArchiveCSSNodes()) {
					tmpNodeEntry = new CssNodeEntry(cssNode.getIdentity(),
						cssNode.getStatus(), cssNode.getType(), cssNode.getCssNodeMAC(), cssNode.getInteractable(), true);
					session.save(tmpNodeEntry);
					log.debug("CSSRegistry ArchivedNode entry saved");
				}
			}

			List<CssRegistryEntry> tmpCssRegistryEntryList = session
					.createCriteria(CssRegistryEntry.class).list();

			// Now to update the main table
			tmpCssRegistryEntryList.get(0).setEntity(cssDetails.getEntity());
			tmpCssRegistryEntryList.get(0)
					.setForeName(cssDetails.getForeName());
			tmpCssRegistryEntryList.get(0).setName(cssDetails.getName());
			tmpCssRegistryEntryList.get(0).setEmailID(cssDetails.getEmailID());
			tmpCssRegistryEntryList.get(0).setSex(cssDetails.getSex());
			tmpCssRegistryEntryList.get(0).setHomeLocation(
					cssDetails.getHomeLocation());
			tmpCssRegistryEntryList.get(0).setCssIdentity(
					cssDetails.getCssIdentity());
			tmpCssRegistryEntryList.get(0)
			.setWorkplace(cssDetails.getWorkplace());
			tmpCssRegistryEntryList.get(0)
			.setPosition(cssDetails.getPosition());

			session.update(tmpCssRegistryEntryList);
			log.debug("CSSRegistry record udated");

			t.commit();
		} catch (Exception e) {
			t.rollback();
			e.printStackTrace();
			throw new CssRegistrationException(e);
		} finally {
			if (session != null) {
				session.close();
			}
		}

	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.societies.api.internal.css.cssRegistry.ICssRegistry#registerCss(org
	 * .societies.api.internal.css.management.CSSRecord)
	 */

	@SuppressWarnings("unchecked")
	@Override
	public void updateCssRequestRecord(CssRequest cssRequest)
			throws CssRegistrationException {

		Session session = sessionFactory.openSession();
		CssRequestEntry filterRegistryEntry = new CssRequestEntry();
		
		
		Transaction t = session.beginTransaction();
		try {

			filterRegistryEntry.setCssIdentity(cssRequest.getCssIdentity());

			List<CssRequestEntry> tmpRegistryEntryList = session.createCriteria(CssRequestEntry.class)
					.add(Restrictions.eq("cssIdentity",
							cssRequest.getCssIdentity()).ignoreCase()).list();
			if (tmpRegistryEntryList != null) {
				for (CssRequestEntry tmpEn : tmpRegistryEntryList) {
					session.delete(tmpEn);
				}
			}

			if ((cssRequest.getRequestStatus() != CssRequestStatusType.CANCELLED) && (cssRequest.getRequestStatus() != CssRequestStatusType.ACCEPTED) && (cssRequest.getRequestStatus() != CssRequestStatusType.DELETEFRIEND)) {
				log.info("updateCssRequestRecord getRequestStatus() = " +cssRequest.getRequestStatus());
				filterRegistryEntry.setRequestStatus(cssRequest
						.getRequestStatus().value());

				session.save(filterRegistryEntry);
			}
			t.commit();
		} catch (Exception e) {
			t.rollback();
			e.printStackTrace();
			throw new CssRegistrationException(e);
		} finally {
			if (session != null) {
				session.close();
			}
		}

	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.societies.api.internal.css.cssRegistry.ICssRegistry#registerCss(org
	 * .societies.api.internal.css.management.CSSRecord)
	 */
	@Override
	@SuppressWarnings("unchecked")
	public List<CssRequest> getCssRequests() throws CssRegistrationException {

		Session session = sessionFactory.openSession();
		CssRequest registryEntry = null;
		List<CssRequest> requestList = new ArrayList<CssRequest>();

		try {

			List<CssRequestEntry> tmpRegistryEntryList = session.createCriteria(CssRequestEntry.class).list();
			if (tmpRegistryEntryList != null) {
				for (CssRequestEntry tmpEn : tmpRegistryEntryList) {
					registryEntry = new CssRequest();

					registryEntry.setCssIdentity(tmpEn.getCssIdentity());

					registryEntry.setRequestStatus(CssRequestStatusType
							.valueOf(tmpEn.getRequestStatus().toUpperCase()));
					requestList.add(registryEntry);

				}
			}

		} catch (Exception e) {

			e.printStackTrace();
			throw new CssRegistrationException(e);
		} finally {
			if (session != null) {
				session.close();
			}
		}

		return requestList;

	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.societies.api.internal.css.cssRegistry.ICssRegistry#registerCss(org
	 * .societies.api.internal.css.management.CSSRecord)
	 */
	@Override
	@SuppressWarnings("unchecked")
	public void updateCssFriendRequestRecord(CssRequest cssRequest)
			throws CssRegistrationException {

		
		Session session = sessionFactory.openSession();
		CssFriendEntry filterRegistryEntry = new CssFriendEntry();

		Transaction t = session.beginTransaction();
		try {

			filterRegistryEntry.setFriendIdentity(cssRequest.getCssIdentity());

			List<CssFriendEntry> tmpRegistryEntryList = session
					.createCriteria(CssFriendEntry.class)
					.add(Restrictions.eq("friendIdentity",
							cssRequest.getCssIdentity()).ignoreCase()).list();

			if (tmpRegistryEntryList != null) {
				for (CssFriendEntry tmpEn : tmpRegistryEntryList) {
					session.delete(tmpEn);
				}
			}

			if ((cssRequest.getRequestStatus() != CssRequestStatusType.CANCELLED)  && (cssRequest.getRequestStatus() != CssRequestStatusType.DELETEFRIEND)){
				log.info("updateCssFriendRequestRecord Called: IF Statement for CANCELLED");
				filterRegistryEntry.setRequestStatus(cssRequest
						.getRequestStatus().value());

				session.save(filterRegistryEntry);
			}
			t.commit();
		} catch (Exception e) {
			t.rollback();
			e.printStackTrace();
			throw new CssRegistrationException(e);
		} finally {
			if (session != null) {
				session.close();
			}
		}

	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.societies.api.internal.css.cssRegistry.ICssRegistry#registerCss(org
	 * .societies.api.internal.css.management.CSSRecord)
	 */
	@Override
	@SuppressWarnings("unchecked")
	public List<CssRequest> getCssFriendRequests()
			throws CssRegistrationException {

		Session session = sessionFactory.openSession();
		CssRequest registryEntry = null;
		List<CssRequest> requestList = new ArrayList<CssRequest>();

		try {

			List<CssFriendEntry> tmpRegistryEntryList = session.createCriteria(CssFriendEntry.class).list();
			if (tmpRegistryEntryList != null) {
				for (CssFriendEntry tmpEn : tmpRegistryEntryList) {
					registryEntry = new CssRequest();

					registryEntry.setCssIdentity(tmpEn.getFriendIdentity());

					registryEntry.setRequestStatus(CssRequestStatusType
							.valueOf(tmpEn.getRequestStatus().toUpperCase()));
					requestList.add(registryEntry);

				}
			}

		} catch (Exception e) {

			e.printStackTrace();
			throw new CssRegistrationException(e);
		} finally {
			if (session != null) {
				session.close();
			}
		}

		return requestList;

	}



	@Override
	@SuppressWarnings("unchecked")
	public List<String> getCssFriends()
			throws CssRegistrationException {

		Session session = sessionFactory.openSession();
		String friendID = null;
		List<String> friendList = new ArrayList<String>();

		try {

			List<CssFriendEntry> tmpRegistryEntryList = session.createCriteria(CssFriendEntry.class)
					.add(Restrictions.eq("requestStatus",CssRequestStatusType.ACCEPTED.toString())).list();
			
			if (tmpRegistryEntryList != null) {
				for (CssFriendEntry tmpEn : tmpRegistryEntryList) {
					friendID = new String(tmpEn.getFriendIdentity());
					friendList.add(friendID);
				}
			}

		} catch (Exception e) {

			e.printStackTrace();
			throw new CssRegistrationException(e);
		} finally {
			if (session != null) {
				session.close();
			}
		}

		return friendList;

	}
	
	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.societies.api.internal.css.cssRegistry.ICssRegistry#registerCss(org
	 * .societies.api.internal.css.management.CSSRecord)
	 */
	@Override
	@SuppressWarnings("unchecked")
	public CssRequest getCssFriendRequest(String cssFriendId)
			throws CssRegistrationException {

		Session session = sessionFactory.openSession();
		CssRequest registryEntry = new CssRequest();
		registryEntry.setCssIdentity(cssFriendId);
		registryEntry.setRequestStatus(CssRequestStatusType.NOTREQUESTED); // default
																			// value

		try {

			List<CssFriendEntry> tmpRegistryEntryList = session
					.createCriteria(CssFriendEntry.class)
					.add(Restrictions.eq("friendIdentity", cssFriendId).ignoreCase()).list();

			if (tmpRegistryEntryList != null && tmpRegistryEntryList.size() > 0) {
				registryEntry.setRequestStatus(CssRequestStatusType
						.valueOf(tmpRegistryEntryList.get(0).getRequestStatus()
								.toUpperCase()));

			}

		} catch (Exception e) {

			e.printStackTrace();
			throw new CssRegistrationException(e);
		} finally {
			if (session != null) {
				session.close();
			}
		}

		return registryEntry;

	}

	@SuppressWarnings("unchecked")
	@Override
	public boolean cssRecordExists() throws CssRegistrationException {
		log.debug("CSSRegistry cssRecordExists");

		boolean retValue = false;
		
		Session session = sessionFactory.openSession();
		
		try {

			List<CssRegistryEntry> tmpRegistryEntryList = session
					.createCriteria(CssRegistryEntry.class).list();
			
			if (tmpRegistryEntryList.size() > 0) {
				retValue = true;
			}

		} catch (Exception e) {
			e.printStackTrace();
			throw new CssRegistrationException(e);
		} finally {
			if (session != null) {
				session.close();
			}
		}
		return retValue;
	}

}