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// $Id$
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/**
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* Copyright (C) 2014 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.session;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.apache.log4j.Logger;
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import org.springframework.stereotype.Component;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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/**
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* @author cmathew
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* @date 16 Oct 2014
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*
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*/
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@Component
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public class CdmEntitySessionManager implements ICdmEntitySessionManager {
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private static final Logger logger = Logger.getLogger(CdmEntitySessionManager.class);
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private final Map<ICdmEntitySessionEnabled, ICdmEntitySession> ownerSessionMap =
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new HashMap<ICdmEntitySessionEnabled, ICdmEntitySession>();
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private final List<ICdmEntitySessionManagerObserver> sessionObservers = new ArrayList<ICdmEntitySessionManagerObserver>();
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private ICdmEntitySession activeSession;
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@Override
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public ICdmEntitySession newSession(ICdmEntitySessionEnabled sessionOwner, boolean setAsActive) {
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ICdmEntitySession session = ownerSessionMap.get(sessionOwner);
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if(session == null) {
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session = new CdmEntitySession(sessionOwner, this);
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addToOwnerSessionMap(sessionOwner, session);
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}
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if(setAsActive) {
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activeSession = session;
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}
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return session;
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}
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@Override
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public ICdmEntitySession getActiveSession() {
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return activeSession;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionManager#getSessions()
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*/
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@Override
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public Collection<ICdmEntitySession> getSessions() {
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return ownerSessionMap.values();
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionManager#bind(eu.etaxonomy.taxeditor.session.ISessionEventListener)
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*/
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@Override
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public void bind(ICdmEntitySessionEnabled sessionOwner) {
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if(sessionOwner == null) {
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activeSession = null;
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return;
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}
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ICdmEntitySession session = ownerSessionMap.get(sessionOwner);
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if(session == null) {
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session = newSession(sessionOwner,true);
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}
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activeSession = session;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionManager#load(T)
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*/
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@Override
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public <T extends Object> T load(T obj, boolean update) {
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if(activeSession == null) {
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return obj;
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} else {
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return activeSession.load(obj, update);
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}
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionManager#load(T)
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*/
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@Override
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public <T extends CdmBase> T load(T cdmBase, boolean update) {
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if(activeSession == null) {
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return cdmBase;
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}
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return activeSession.load(cdmBase, update);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionManager#load(java.util.Collection)
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*/
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@Override
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public <T extends CdmBase> Collection<T> load(Collection<T> cdmBaseList, boolean update) {
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if(activeSession == null) {
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return cdmBaseList;
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}
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return activeSession.load(cdmBaseList, update);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionManager#dispose(eu.etaxonomy.taxeditor.session.ISessionEventListener)
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*/
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void dispose(ICdmEntitySessionEnabled owner) {
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ICdmEntitySession session = ownerSessionMap.get(owner);
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if(session == null) {
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logger.info("No Session connected to owner, nothing to dispose");
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return;
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}
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if(session == activeSession) {
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activeSession = null;
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}
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ownerSessionMap.remove(owner);
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notifyObservers();
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}
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void addToOwnerSessionMap(ICdmEntitySessionEnabled owner, ICdmEntitySession session) {
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ownerSessionMap.put(owner, session);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionManager#addSessionListener()
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*/
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@Override
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public void addSessionObserver(ICdmEntitySessionManagerObserver sessionObserver) {
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sessionObservers.add(sessionObserver);
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}
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public void notifyObservers() {
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for(ICdmEntitySessionManagerObserver sessionObserver : sessionObservers) {
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sessionObserver.changed();
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}
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.session.ICdmEntitySessionManager#isRemoting()
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*/
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@Override
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public boolean isRemoting() {
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// FIXME:Remoting stupid method to check whether we are in remoting
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return true;
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}
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}
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