EDIT

package eu.etaxonomy.cdm.remote.vaadin.components;

import java.util.Arrays;

import java.util.Collection;

import java.util.List;

import javax.annotation.PostConstruct;

import javax.sql.DataSource;

import org.apache.log4j.Logger;

import org.hibernate.SessionFactory;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.context.annotation.Scope;

import org.springframework.orm.hibernate4.HibernateTransactionManager;

import org.springframework.stereotype.Component;

import com.vaadin.data.util.BeanItemContainer;

import com.vaadin.ui.Table;

import eu.etaxonomy.cdm.api.conversation.ConversationHolder;

import eu.etaxonomy.cdm.api.service.IDescriptionService;

import eu.etaxonomy.cdm.api.service.INameService;

import eu.etaxonomy.cdm.api.service.ITaxonService;

import eu.etaxonomy.cdm.api.service.ITermService;

import eu.etaxonomy.cdm.model.description.DescriptionElementBase;

import eu.etaxonomy.cdm.model.description.PresenceAbsenceTermBase;

import eu.etaxonomy.cdm.model.taxon.Taxon;

import eu.etaxonomy.cdm.model.taxon.TaxonBase;

import eu.etaxonomy.cdm.remote.dto.redlist.RedlistDTO;

/**

 * 

 * This class is a Vaadin Component. It starts a long running session at the moment. 

 * This might change in the future, but for now it beautifully works for this prototype.<p>

 * This class takes advantage of the dto and fills a container with data from the DB. Lazyloading or 

 * Paging needs to be used!!!!

 * <p>

 * Further clarification is needed about the exact process when marking this component as dirty.

 * What will happen to the bound session? Why are changed Object saved without calling services explicitly.

 * 

 * 

 * @author a.oppermann

 *

 */

@Component

@Scope("request")

public class TaxonTableDTO extends Table{

	/**

	 * automatic generated ID

	 */

	@Autowired

	ITaxonService taxonService;

	@Autowired

	INameService nameService;

	@Autowired

	IDescriptionService descriptionService;

	@Autowired

	ITermService termService;

    @Autowired

    private HibernateTransactionManager transactionManager;

    @Autowired

    private DataSource dataSource;

    @Autowired

    private SessionFactory sessionFactory;

	private ConversationHolder conversationHolder;

	Logger logger = Logger.getLogger(TaxonTableDTO.class);

	private static final long serialVersionUID = -8449485694571526437L;

	@PostConstruct

	@SuppressWarnings("rawtypes")

	void PostConstruct(){

		setSizeFull();

//		conversationHolder = new ConversationHolder(dataSource, sessionFactory, transactionManager);

//		conversationHolder.bind();

		final BeanItemContainer<RedlistDTO> redListContainer = new BeanItemContainer<RedlistDTO>(RedlistDTO.class);

		//TODO: Make use of paging

		Collection<Taxon> listTaxon = taxonService.list(Taxon.class, null, null, null, NODE_INIT_STRATEGY);

		for(Taxon taxonBase:listTaxon){

			Taxon taxon = (Taxon) taxonBase;

			List<PresenceAbsenceTermBase> termList = termService.listByTermClass(PresenceAbsenceTermBase.class, null, null, null, DESCRIPTION_INIT_STRATEGY);

			List<DescriptionElementBase> listTaxonDescription = descriptionService.listDescriptionElementsForTaxon(taxon, null, null, null, null, DESCRIPTION_INIT_STRATEGY);

			RedlistDTO redlistDTO = new RedlistDTO(taxon, listTaxonDescription, termList);

			redListContainer.addBean(redlistDTO);

		}

		setContainerDataSource(redListContainer);

		setColumnReorderingAllowed(true);

		String[] columns = new String[]{"fullTitleCache", "rank", "UUID", "distributionStatus"};

		setVisibleColumns(columns);

		setColumnHeaders(new String[]{"Taxon", "Rang" , "UUID", "Deutschland"});

		setImmediate(true);

		setColumnCollapsingAllowed(true);

		setSelectable(true);

		setSizeFull();

		setPageLength(10);

	}

	public ConversationHolder getConversationHolder() {

		return conversationHolder;

	}

	private static final List<String> NODE_INIT_STRATEGY = Arrays.asList(new String[]{

    		"descriptions",

    		"descriptions.*",

    		"description.state",

    		"feature",

    		"feature.*",

    		"childNodes",

    		"childNodes.taxon",

    		"childNodes.taxon.name",

    		"taxonNodes",

    		"taxonNodes.*",

            "taxonNodes.taxon.*",

    		"taxon.*",

    		"taxon.descriptions",

    		"taxon.sec",

    		"taxon.name.*",

    		"taxon.synonymRelations",

    		"terms",

            "name.*",

            "name.rank.representations",

            "name.status.type.representations",

            "sources.$",

            "stateData.$"

    });

	protected static final List<String> DESCRIPTION_INIT_STRATEGY = Arrays.asList(new String []{

            "$",

            "elements.*",

            "elements.sources.citation.authorTeam.$",

            "elements.sources.nameUsedInSource.originalNameString",

            "elements.area.level",

            "elements.modifyingText",

            "elements.states.*",

            "elements.media",

            "elements.multilanguageText",

            "multilanguageText",

            "stateData.$"

    });

}