resource-registry/src/main/java/org/gcube/informationsystem/resourceregistry/er/relation/RelationManagement.java

/**
 * 
 */
package org.gcube.informationsystem.resourceregistry.er.relation;

import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.UUID;

import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONObject;
import org.gcube.informationsystem.model.AccessType;
import org.gcube.informationsystem.model.embedded.PropagationConstraint;
import org.gcube.informationsystem.model.embedded.PropagationConstraint.AddConstraint;
import org.gcube.informationsystem.model.embedded.PropagationConstraint.RemoveConstraint;
import org.gcube.informationsystem.model.entity.Entity;
import org.gcube.informationsystem.model.entity.Facet;
import org.gcube.informationsystem.model.entity.Resource;
import org.gcube.informationsystem.model.relation.ConsistsOf;
import org.gcube.informationsystem.model.relation.IsRelatedTo;
import org.gcube.informationsystem.model.relation.Relation;
import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
import org.gcube.informationsystem.resourceregistry.api.exceptions.context.ContextException;
import org.gcube.informationsystem.resourceregistry.api.exceptions.er.ERNotFoundException;
import org.gcube.informationsystem.resourceregistry.api.exceptions.relation.RelationNotFoundException;
import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaException;
import org.gcube.informationsystem.resourceregistry.context.ContextUtility;
import org.gcube.informationsystem.resourceregistry.context.SecurityContextMapper.PermissionMode;
import org.gcube.informationsystem.resourceregistry.er.ERManagement;
import org.gcube.informationsystem.resourceregistry.er.ERManagementUtility;
import org.gcube.informationsystem.resourceregistry.er.entity.EntityManagement;
import org.gcube.informationsystem.resourceregistry.er.entity.FacetManagement;
import org.gcube.informationsystem.resourceregistry.er.entity.ResourceManagement;
import org.gcube.informationsystem.resourceregistry.utils.Utility;

import com.fasterxml.jackson.databind.JsonNode;
import com.tinkerpop.blueprints.Direction;
import com.tinkerpop.blueprints.Edge;
import com.tinkerpop.blueprints.Vertex;
import com.tinkerpop.blueprints.impls.orient.OrientBaseGraph;
import com.tinkerpop.blueprints.impls.orient.OrientEdge;
import com.tinkerpop.blueprints.impls.orient.OrientEdgeType;
import com.tinkerpop.blueprints.impls.orient.OrientGraph;

/**
 * @author Luca Frosini (ISTI - CNR)
 */
@SuppressWarnings("rawtypes")
public abstract class RelationManagement<R extends Relation, S extends EntityManagement, T extends EntityManagement>
		extends ERManagement<R, Edge> {

	protected final Class<? extends Entity> targetEntityClass;

	private S sourceEntityManagemen;
	private T targetEntityManagemen;

	protected RelationManagement(AccessType accessType) {
		super(accessType);

		this.ignoreKeys.add(Relation.HEADER_PROPERTY);
		this.ignoreKeys.add(Relation.TARGET_PROPERTY);
		this.ignoreKeys.add(Relation.SOURCE_PROPERTY);
		this.ignoreKeys.add(OrientBaseGraph.CONNECTION_IN.toLowerCase());
		this.ignoreKeys.add(OrientBaseGraph.CONNECTION_OUT.toLowerCase());
		this.ignoreKeys.add(OrientBaseGraph.CONNECTION_IN.toUpperCase());
		this.ignoreKeys.add(OrientBaseGraph.CONNECTION_OUT.toUpperCase());

		switch (accessType) {
		case CONSISTS_OF:
			this.targetEntityClass = Facet.class;
			break;

		case IS_RELATED_TO:
			this.targetEntityClass = Resource.class;
			break;

		default:
			this.targetEntityClass = Resource.class;
			break;
		}

		sourceEntityManagemen = null;
		targetEntityManagemen = null;

	}

	protected RelationManagement(AccessType accessType, OrientGraph orientGraph) {
		this(accessType);
		this.orientGraph = orientGraph;
	}

	@SuppressWarnings("unchecked")
	protected S getSourceEntityManagemen() throws ResourceRegistryException {
		if (sourceEntityManagemen == null) {
			Vertex source = getElement().getVertex(Direction.OUT);
			sourceEntityManagemen = newSourceEntityManagement();
			sourceEntityManagemen.setElement(source);
		}
		return sourceEntityManagemen;
	}
	
	@SuppressWarnings("unchecked")
	public T getTargetEntityManagemen() throws ResourceRegistryException {
		if (targetEntityManagemen == null) {
			Vertex target = getElement().getVertex(Direction.IN);
			targetEntityManagemen = newTargetEntityManagement();
			targetEntityManagemen.setElement(target);
		}
		return targetEntityManagemen;
	}
	
	public void setSourceEntityManagement(S sourceEntityManagement) {
		this.sourceEntityManagemen = sourceEntityManagement;
	}

	public void setTargetEntityManagement(T targetEntityManagement) {
		this.targetEntityManagemen = targetEntityManagement;
	}
	
	@Override
	public String serialize() throws ResourceRegistryException {
		return serializeAsJson().toString();
	}

	@Override
	public JSONObject serializeAsJson() throws ResourceRegistryException {
		return serializeAsJson(true, true);
	}

	public JSONObject serializeAsJson(boolean includeSource, boolean includeTarget) throws ResourceRegistryException {
		JSONObject relation = serializeSelfOnly();

		try {
			if (includeSource) {
				relation.put(Relation.SOURCE_PROPERTY, getSourceEntityManagemen().serializeSelfOnly());
			}

			if (includeTarget) {
				relation.put(Relation.TARGET_PROPERTY, getTargetEntityManagemen().serializeAsJson());
			}

		} catch (ResourceRegistryException e) {
			logger.error("Unable to correctly serialize {}. This is really strange and should not occur.", element, e);
			throw e;
		} catch (Exception e) {
			logger.error("Unable to correctly serialize {}. This is really strange and should not occur.", element, e);
			throw new ResourceRegistryException(e);
		}

		return relation;
	}

	protected Map<String, JSONObject> fullSerialize(Map<String, JSONObject> visitedSourceResources)
			throws ResourceRegistryException {
		Vertex source = element.getVertex(Direction.OUT);

		String id = source.getId().toString();

		JSONObject sourceResource = visitedSourceResources.get(id);
		if (sourceResource == null) {
			ResourceManagement resourceManagement = (ResourceManagement) ERManagementUtility
					.getEntityManagement(orientGraph, source);
			if (this instanceof IsRelatedToManagement) {
				sourceResource = resourceManagement.serializeAsJson();
			} else if (this instanceof ConsistsOfManagement) {
				sourceResource = resourceManagement.serializeSelfOnly();
			} else {
				String error = String.format(
						"{%s is not a %s nor a %s. " + "This is really strange and should not occur. "
								+ "Please Investigate it.",
						this, IsRelatedToManagement.class.getSimpleName(), ConsistsOfManagement.class.getSimpleName());
				throw new ResourceRegistryException(error);
			}
		}

		if (this instanceof IsRelatedToManagement) {
			sourceResource = ResourceManagement.addIsRelatedTo(sourceResource, serializeAsJson());
		} else if (this instanceof ConsistsOfManagement) {
			sourceResource = ResourceManagement.addConsistsOf(sourceResource, serializeAsJson());
		} else {
			String error = String.format(
					"{%s is not a %s nor a %s. " + "This is really strange and should not occur. "
							+ "Please Investigate it.",
					this, IsRelatedToManagement.class.getSimpleName(), ConsistsOfManagement.class.getSimpleName());
			throw new ResourceRegistryException(error);
		}

		visitedSourceResources.put(id, sourceResource);

		return visitedSourceResources;
	}

	@Override
	protected Edge reallyCreate() throws ResourceRegistryException {

		if (sourceEntityManagemen == null) {

			if (!jsonNode.has(Relation.SOURCE_PROPERTY)) {
				throw new ResourceRegistryException("Error while creating relation. No source definition found");
			}

			UUID sourceUUID = org.gcube.informationsystem.impl.utils.Utility
					.getUUIDFromJsonNode(jsonNode.get(Relation.SOURCE_PROPERTY));
			
			sourceEntityManagemen = newSourceEntityManagement();
			sourceEntityManagemen.setUUID(sourceUUID);
		}

		if (targetEntityManagemen == null) {
			targetEntityManagemen = newTargetEntityManagement();

			if (!jsonNode.has(Relation.TARGET_PROPERTY)) {
				throw new ResourceRegistryException("Error while creating " + erType + ". No target definition found");
			}

			try {
				targetEntityManagemen.setJSON(jsonNode.get(Relation.TARGET_PROPERTY));
			} catch (SchemaException e) {
				StringWriter errorMessage = new StringWriter();
				errorMessage.append("A ");
				errorMessage.append(erType);
				errorMessage.append(" can be only created beetween ");
				errorMessage.append(sourceEntityManagemen.getAccessType().getName());
				errorMessage.append(" and ");
				errorMessage.append(targetEntityManagemen.getAccessType().getName());
				throw new ResourceRegistryException(errorMessage.toString(), e);
			}

			try {
				targetEntityManagemen.getElement();
			} catch (Exception e) {
				targetEntityManagemen.internalCreate();
			}
		}

		// Revisit this if-else because should be not needed anymore.
		/*
		 * if(this instanceof IsParentOfManagement) { if (!(sourceEntityManagement
		 * instanceof ContextManagement && targetEntityManagement instanceof
		 * ContextManagement)) { String error = String.format(
		 * "A %s can be only created beetween two %s. " +
		 * "Cannot instatiate %s beetween %s -> %s ", IsParentOf.NAME, Context.NAME,
		 * erType, sourceEntityManagement.serialize(),
		 * targetEntityManagement.serialize()); throw new
		 * ResourceRegistryException(error); } } else { if (!(sourceEntityManagement
		 * instanceof ResourceManagement)) { String error = String.format(
		 * "Any type of %s can have only a %s as %s. " +
		 * "Cannot instatiate %s beetween %s -> %s ", Relation.NAME, Resource.NAME,
		 * Relation.SOURCE_PROPERTY, erType, sourceEntityManagement.serialize(),
		 * targetEntityManagement.serialize()); throw new
		 * ResourceRegistryException(error); }
		 * 
		 * if (this instanceof IsRelatedToManagement) { if (!(targetEntityManagement
		 * instanceof ResourceManagement)) { String error =
		 * String.format("A %s can have only a %s as %s. " +
		 * "Cannot instatiate %s beetween %s -> %s ", accessType.getName(),
		 * Resource.NAME, Relation.TARGET_PROPERTY, erType,
		 * sourceEntityManagement.serialize(), targetEntityManagement.serialize());
		 * throw new ResourceRegistryException(error); } } else if (this instanceof
		 * ConsistsOfManagement) { if (!(targetEntityManagement instanceof
		 * FacetManagement)) { String error =
		 * String.format("A %s can have only a %s as %s. " +
		 * "Cannot instatiate %s beetween %s -> %s ", accessType.getName(), Facet.NAME,
		 * Relation.TARGET_PROPERTY, erType, sourceEntityManagement.serialize(),
		 * targetEntityManagement.serialize()); throw new
		 * ResourceRegistryException(error); } } else { String error =
		 * String.format("{%s is not a %s nor a %s. " +
		 * "This is really strange and should not occur. " + "Please Investigate it.",
		 * this, IsRelatedToManagement.class.getSimpleName(),
		 * ConsistsOfManagement.class.getSimpleName()); throw new
		 * ResourceRegistryException(error); }
		 * 
		 * }
		 */
		// end of if-else to be revisited

		logger.trace("Creating {} beetween {} -> {}", erType, getSourceEntityManagemen().serialize(),
				getTargetEntityManagemen().serialize());

		Vertex source = (Vertex) getSourceEntityManagemen().getElement();
		Vertex target = (Vertex) getTargetEntityManagemen().getElement();

		element = orientGraph.addEdge(null, source, target, erType);

		ERManagement.updateProperties(oClass, element, jsonNode, ignoreKeys, ignoreStartWithKeys);

		/*
		 * This code has been moved in ERManagement.internalCreate()
		 * HeaderUtility.addHeader(element, null);
		 * ContextUtility.addToActualContext(orientGraph, element);
		 * 
		 * ((OrientEdge) element).save();
		 */

		logger.info("{} successfully created", erType);

		return element;
	}

	protected abstract S newSourceEntityManagement() throws ResourceRegistryException;
	
	protected abstract T newTargetEntityManagement() throws ResourceRegistryException;
	
	/*
	public void setSourceUUID(UUID sourceUUID) throws ResourceRegistryException {
		this.sourceEntityManagemen = newSourceEntityManagement();
		this.sourceEntityManagemen.setUUID(sourceUUID);
	}

	public void setTargetUUID(UUID targetUUID) throws ResourceRegistryException {
		this.targetEntityManagemen = newTargetEntityManagement();
		this.targetEntityManagemen.setUUID(targetUUID);
		
	}
	*/

	@Override
	protected Edge reallyUpdate() throws ResourceRegistryException {

		logger.debug("Trying to update {} : {}", erType, jsonNode);

		Edge edge = getElement();
		ERManagement.updateProperties(oClass, edge, jsonNode, ignoreKeys, ignoreStartWithKeys);

		if (accessType.compareTo(AccessType.CONSISTS_OF) == 0) {
			JsonNode target = jsonNode.get(Relation.TARGET_PROPERTY);
			if (target != null) {
				FacetManagement fm = new FacetManagement(orientGraph);
				fm.setJSON(target);
				fm.internalUpdate();
			}
		}

		logger.info("{} {} successfully updated", erType, jsonNode);

		return edge;

	}

	@Override
	protected boolean reallyAddToContext() throws ContextException, ResourceRegistryException {
		getElement();

		AddConstraint addConstraint = AddConstraint.unpropagate;

		try {
			PropagationConstraint propagationConstraint = Utility.getEmbedded(PropagationConstraint.class, element,
					Relation.PROPAGATION_CONSTRAINT);
			if (propagationConstraint.getAddConstraint() != null) {
				addConstraint = propagationConstraint.getAddConstraint();
			} else {
				String error = String.format(
						"%s.%s in %s is null" + "This is really strange and should not occur. "
								+ "Please Investigate it.",
						Relation.PROPAGATION_CONSTRAINT, PropagationConstraint.ADD_PROPERTY,
						Utility.toJsonString(element, true));
				logger.error(error);
				throw new ResourceRegistryException(error);
			}
		} catch (Exception e) {
			String error = String.format(
					"Error while getting %s from %s while performing AddToContext."
							+ "This is really strange and should not occur. " + "Please Investigate it.",
					Relation.PROPAGATION_CONSTRAINT, Utility.toJsonString(element, true));
			logger.warn(error);
			throw new ResourceRegistryException(error, e);
		}

		switch (addConstraint) {
			case propagate:
				/*
				 * The relation must be added only in the case the target vertex must be added.
				 * Otherwise we have a relation which point to an entity outside of the context.
				 */
				getTargetEntityManagemen().internalAddToContext();
				
				ContextUtility.addToActualContext(orientGraph, getElement());
	
				break;
	
			case unpropagate:
				break;
	
			default:
				break;
		}

		return true;
	}

	public boolean forcedAddToContext() throws ContextException, ResourceRegistryException {

		getElement();

		/* Adding source to Context */
		getSourceEntityManagemen().internalAddToContext();

		/* Adding target to Context */
		getTargetEntityManagemen().internalAddToContext();

		ContextUtility.addToActualContext(orientGraph, getElement());

		return true;
	}

	/*
	protected boolean removeFromContextTargetVertex(Vertex target) throws ResourceRegistryException {
		EntityManagement entityManagement = EntityManagement.getEntityManagement(orientGraph, target);
		if (entityManagement != null) {
			entityManagement.internalRemoveFromContext();
			return true;
		} else {
			return false;
		}
	}
	*/
	

	@Override
	protected boolean reallyRemoveFromContext() throws ContextException, ResourceRegistryException {
		getElement();

		RemoveConstraint removeConstraint = RemoveConstraint.keep;

		try {
			PropagationConstraint propagationConstraint = Utility.getEmbedded(PropagationConstraint.class, element,
					Relation.PROPAGATION_CONSTRAINT);
			if (propagationConstraint.getRemoveConstraint() != null) {
				removeConstraint = propagationConstraint.getRemoveConstraint();
			} else {
				String error = String.format(
						"%s.%s in %s is null" + "This is really strange and should not occur. "
								+ "Please Investigate it.",
						Relation.PROPAGATION_CONSTRAINT, PropagationConstraint.REMOVE_PROPERTY,
						Utility.toJsonString(element, true));
				logger.error(error);
				throw new ResourceRegistryException(error);
			}
		} catch (Exception e) {
			String error = String.format(
					"Error while getting %s from %s while performing RemoveFromContext."
							+ "This is really strange and should not occur. " + "Please Investigate it.",
					Relation.PROPAGATION_CONSTRAINT, Utility.toJsonString(element, true));
			logger.error(error);
			throw new ResourceRegistryException(error, e);

		}

		/*
		 * In any removeConstraint value the relation MUST be removed from context to
		 * avoid to have edge having a source outside of the context.
		 */
		ContextUtility.removeFromActualContext(orientGraph, element);

		switch (removeConstraint) {
			case cascade:
				getTargetEntityManagemen().internalRemoveFromContext();
				break;
	
			case cascadeWhenOrphan:
				Vertex target = (Vertex) getTargetEntityManagemen().getElement();
				
				Iterable<Edge> iterable = target.getEdges(Direction.IN);
				Iterator<Edge> iterator = iterable.iterator();
				int count = 0;
				OrientEdge edge = null;
				while (iterator.hasNext()) {
					edge = (OrientEdge) iterator.next();
					OrientEdge thisOrientEdge = (OrientEdge) getElement();
					if (edge.compareTo(thisOrientEdge) != 0) {
						if (thisOrientEdge.getOutVertex().compareTo(edge.getOutVertex()) != 0) {
							count++;
							break;
						}
						/*
						 * else{ ContextUtility.removeFromActualContext(orientGraph, edge); }
						 */
					}
				}
	
				if (count > 0) {
					logger.trace(
							"{} point to {} which is not orphan ({} exists). Giving {} directive, it will be not remove from current context.",
							element, target, edge, removeConstraint);
				} else {
					getTargetEntityManagemen().internalRemoveFromContext();
				}
				break;
	
			case keep:
				break;
	
			default:
				break;
		}

		return true;
	}

	

	@SuppressWarnings("unchecked")
	public static RelationManagement getRelationManagement(OrientGraph orientGraph, Edge edge)
			throws ResourceRegistryException {

		if (orientGraph == null) {
			throw new ResourceRegistryException(OrientGraph.class.getSimpleName()
					+ "instance is null. This is really strage please contact the administrator.");
		}

		if (edge == null) {
			throw new ResourceRegistryException(Edge.class.getSimpleName()
					+ "instance is null. This is really strage please contact the administrator.");
		}

		OrientEdgeType orientEdgeType = ((OrientEdge) edge).getType();
		RelationManagement relationManagement = null;
		if (orientEdgeType.isSubClassOf(ConsistsOf.NAME)) {
			relationManagement = new ConsistsOfManagement(orientGraph);
		} else if (orientEdgeType.isSubClassOf(IsRelatedTo.NAME)) {
			relationManagement = new IsRelatedToManagement(orientGraph);
		} else {
			String error = String.format("{%s is not a %s nor a %s. " + "This is really strange ad should not occur. "
					+ "Please Investigate it.", edge, ConsistsOf.NAME, IsRelatedTo.NAME);
			throw new ResourceRegistryException(error);
		}
		relationManagement.setElement(edge);
		return relationManagement;
	}

	@Override
	protected boolean reallyDelete() throws RelationNotFoundException, ResourceRegistryException {
		logger.debug("Going to remove {} with UUID {}. Related {}s will be detached.", accessType.getName(), uuid,
				targetEntityClass.getSimpleName());

		getElement();

		RemoveConstraint removeConstraint = RemoveConstraint.keep;

		try {
			PropagationConstraint propagationConstraint = Utility.getEmbedded(PropagationConstraint.class, element,
					Relation.PROPAGATION_CONSTRAINT);
			if (propagationConstraint.getRemoveConstraint() != null) {
				removeConstraint = propagationConstraint.getRemoveConstraint();
			} else {
				String error = String.format(
						"%s.%s in %s is null" + "This is really strange and should not occur. "
								+ "Please Investigate it.",
						Relation.PROPAGATION_CONSTRAINT, PropagationConstraint.REMOVE_PROPERTY,
						Utility.toJsonString(element, true));
				logger.error(error);
				throw new ResourceRegistryException(error);
			}
		} catch (Exception e) {
			logger.warn(
					"Error while getting {} from {}. Assuming {}. " + "This is really strange and should not occur. "
							+ "Please Investigate it.",
					Relation.PROPAGATION_CONSTRAINT, Utility.toJsonString(element, true), removeConstraint);
		}

		Vertex target = (Vertex) getTargetEntityManagemen().getElement();
		element.remove();

		switch (removeConstraint) {
			case cascade:
				getTargetEntityManagemen().internalDelete();
				break;
	
			case cascadeWhenOrphan:
				Iterable<Edge> iterable = target.getEdges(Direction.IN);
				Iterator<Edge> iterator = iterable.iterator();
				if (iterator.hasNext()) {
					logger.trace("{} point to {} which is not orphan. Giving {} directive, it will be keep.", element,
							target, removeConstraint);
				} else {
					getTargetEntityManagemen().internalDelete();
				}
				break;
	
			case keep:
				break;
	
			default:
				break;
		}

		return true;
	}

	@SuppressWarnings("unused")
	private String create(UUID sourceUUID, UUID targetUUID) throws ResourceRegistryException {
		try {
			orientGraph = ContextUtility.getActualSecurityContextGraph(PermissionMode.WRITER, forceAdmin);

			getSourceEntityManagemen().setUUID(sourceUUID);
			getTargetEntityManagemen().setUUID(targetUUID);

			element = reallyCreate();

			orientGraph.commit();

			return serialize();

		} catch (ResourceRegistryException e) {
			if (orientGraph != null) {
				orientGraph.rollback();
			}
			throw e;
		} catch (Exception e) {
			if (orientGraph != null) {
				orientGraph.rollback();
			}
			throw new ResourceRegistryException(e);
		} finally {
			if (orientGraph != null) {
				orientGraph.shutdown();
			}
		}
	}

	@SuppressWarnings("unchecked")
	protected Collection<JSONObject> serializeEdges(Iterable<Edge> edges, boolean postFilterPolymorphic)
			throws ResourceRegistryException {
		Map<String, JSONObject> visitedSourceResources = new HashMap<>();
		for (Edge edge : edges) {
			if (postFilterPolymorphic && edge.getLabel().compareTo(erType) != 0) {
				continue;
			}
			RelationManagement relationManagement = getRelationManagement(orientGraph, edge);
			visitedSourceResources = relationManagement.fullSerialize(visitedSourceResources);
		}
		return visitedSourceResources.values();
	}

	protected String serializeJSONObjectList(Collection<JSONObject> list) {
		JSONArray jsonArray = new JSONArray(list);
		return jsonArray.toString();
	}

	@Override
	public String reallyGetAll(boolean polymorphic) throws ResourceRegistryException {
		Iterable<Edge> edges = orientGraph.getEdgesOfClass(erType, polymorphic);
		Collection<JSONObject> collection = serializeEdges(edges, false);
		return serializeJSONObjectList(collection);
	}

	public String reallyGetAllFrom(UUID uuid, Direction direction, boolean polymorphic)
			throws ResourceRegistryException {
		EntityManagement entityManagement = null;
		try {
			entityManagement = (EntityManagement) ERManagementUtility.getERManagementFromUUID(orientGraph, uuid);
		} catch (ResourceRegistryException e) {
			throw e;
		} catch (Exception e) {
			throw new ResourceRegistryException(
					String.format("Provided UUID %s does not belogn to any %s", uuid.toString(), Entity.NAME));
		}

		Vertex vertex = (Vertex) entityManagement.getElement();

		List<JSONObject> list = new ArrayList<>();
		Iterable<Edge> edges = vertex.getEdges(direction, erType);
		list.addAll(serializeEdges(edges, !polymorphic));

		return serializeJSONObjectList(list);

	}

	public String allFrom(UUID uuid, Direction direction, boolean polymorphic) throws ResourceRegistryException {
		try {
			orientGraph = ContextUtility.getActualSecurityContextGraph(PermissionMode.READER, forceAdmin);

			return reallyGetAllFrom(uuid, direction, polymorphic);
		} catch (ResourceRegistryException e) {
			throw e;
		} catch (Exception e) {
			throw new ResourceRegistryException(e);
		} finally {
			if (orientGraph != null) {
				orientGraph.shutdown();
			}
		}
	}

	@Override
	public boolean addToContext() throws ERNotFoundException, ContextException {
		logger.debug("Going to add {} with UUID {} to actual Context", accessType.getName(), uuid);

		try {
			orientGraph = ContextUtility.getActualSecurityContextGraph(PermissionMode.WRITER, true);

			boolean added = forcedAddToContext();

			orientGraph.commit();
			logger.info("{} with UUID {} successfully added to actual Context", accessType.getName(), uuid);

			return added;
		} catch (Exception e) {
			logger.error("Unable to add {} with UUID {} to actual Context", accessType.getName(), uuid, e);
			if (orientGraph != null) {
				orientGraph.rollback();
			}
			throw new ContextException(e);
		} finally {
			if (orientGraph != null) {
				orientGraph.shutdown();
			}
		}
	}

}