Fixing database initializations

src/main/java/org/gcube/informationsystem/resourceregistry/dbinitialization/DatabaseEnvironment.java

@@ -196,7 +196,8 @@ public class DatabaseEnvironment {
 			contextUtility.addSecurityContext(schemaSecurityContext.getUUID().toString(), schemaSecurityContext);
 			
 			if(created) {
-				ODatabasePool pool = new ODatabasePool(DatabaseEnvironment.DB_URI, CHANGED_ADMIN_USERNAME, CHANGED_ADMIN_PASSWORD);
+				ODatabasePool pool = new ODatabasePool(DatabaseEnvironment.DB_URI, CHANGED_ADMIN_USERNAME,
+						CHANGED_ADMIN_PASSWORD);
 				ODatabaseDocument oDatabaseDocument = pool.acquire();
 				adminSecurityContext.create(oDatabaseDocument);
 				oDatabaseDocument.commit();
@@ -207,7 +208,6 @@ public class DatabaseEnvironment {
 				
 				schemaSecurityContext.create();
 				
-				
 				List<Package> packages = new ArrayList<Package>();
 				
 				Class<TypeDefinition> tdClz = TypeDefinition.class;
@@ -240,16 +240,17 @@ public class DatabaseEnvironment {
 		
 	}
 	
-	
 	protected static Key initDbKey(Properties properties) {
 		try {
 			logger.trace("Going to get properties required to load DB key");
 			String keyFileName = properties.getProperty(DB_KEY_FILENAME_VARNAME);
 			String keyAlgorithm = properties.getProperty(DB_KEY_ALGORITHM_VARNAME);
-			logger.debug("Trying to load DB key from file with name {} created for algorithm {}", keyFileName, keyAlgorithm);
+			logger.debug("Trying to load DB key from file with name {} created for algorithm {}", keyFileName,
+					keyAlgorithm);
 			URL keyFileURL = DatabaseEnvironment.class.getClassLoader().getResource(keyFileName);
 			File keyFile = new File(keyFileURL.toURI());
-			logger.debug("Trying to load DB key from file {} created for algorithm {}", keyFile.getAbsolutePath(), keyAlgorithm);
+			logger.debug("Trying to load DB key from file {} created for algorithm {}", keyFile.getAbsolutePath(),
+					keyAlgorithm);
 			Key key = SymmetricKey.loadKeyFromFile(keyFile, keyAlgorithm);
 			logger.info("DB Key has been properly initialized");
 			return key;
@@ -263,9 +264,7 @@ public class DatabaseEnvironment {
 		oDatabaseDocument.set(ATTRIBUTES.DATETIMEFORMAT, ISConstants.DATETIME_PATTERN);
 	}
 	
-	
 	private static boolean initGraphDB() throws Exception {
-		
 		OLogManager.instance().setWarnEnabled(false);
 		OLogManager.instance().setErrorEnabled(false);
 		OLogManager.instance().setInfoEnabled(false);
@@ -273,64 +272,64 @@ public class DatabaseEnvironment {
 		
 		logger.info("Connecting as {} to {}", ROOT_USERNAME, DB_URI);
 		OrientDB orientDB = new OrientDB(SERVER_URI, ROOT_USERNAME, ROOT_PASSWORD, OrientDBConfig.defaultConfig());
+		try {
+			if(!orientDB.exists(DB)) {
 				
-		if(!orientDB.exists(DB)) {
+				logger.info("The database {} does not exist. Going to create it.", DB_URI);
+				orientDB.create(DB, ODatabaseType.PLOCAL);
 				
+				logger.trace("Connecting to newly created database {} as {} with default password", DB_URI,
+						DEFAULT_ADMIN_USERNAME);
 				
-			logger.info("The database {} does not exist. Going to create it.", DB_URI);
+				ODatabasePool pool = new ODatabasePool(orientDB, DB, DEFAULT_ADMIN_USERNAME, DEFAULT_ADMIN_PASSWORD);
-			orientDB.create(DB, ODatabaseType.PLOCAL);
+				ODatabaseSession oDatabaseSession = pool.acquire();
 				
-			logger.trace("Connecting to newly created database {} as {} with default password", DB_URI,
+				DatabaseEnvironment.setDateTimeFormat(oDatabaseSession);
-					DEFAULT_ADMIN_USERNAME);
 				
-			ODatabasePool pool = new ODatabasePool(orientDB,DB, DEFAULT_ADMIN_USERNAME,DEFAULT_ADMIN_PASSWORD);
+				OMetadata oMetadata = oDatabaseSession.getMetadata();
-			ODatabaseSession oDatabaseSession = pool.acquire();
+				OSecurity oSecurity = oMetadata.getSecurity();
 				
-			DatabaseEnvironment.setDateTimeFormat(oDatabaseSession);
+				logger.trace("Changing {} password", DEFAULT_ADMIN_USERNAME);
 				
+				OUser admin = oSecurity.getUser(DEFAULT_ADMIN_USERNAME);
+				admin.setPassword(CHANGED_ADMIN_PASSWORD);
+				admin.save();
 				
-			OMetadata oMetadata = oDatabaseSession.getMetadata();
+				logger.trace("Creating new admin named '{}'", CHANGED_ADMIN_USERNAME);
-			OSecurity oSecurity = oMetadata.getSecurity();
+				ORole adminRole = oSecurity.getRole(DEFAULT_ADMIN_ROLE);
+				OUser newAdminUser = oSecurity.createUser(CHANGED_ADMIN_USERNAME, CHANGED_ADMIN_PASSWORD, adminRole);
+				newAdminUser.save();
 				
-			logger.trace("Changing {} password", DEFAULT_ADMIN_USERNAME);
+				for(PermissionMode permissionMode : DEFAULT_PASSWORDS.keySet()) {
+					OUser oUser = oSecurity.getUser(permissionMode.toString());
+					oUser.setPassword(DEFAULT_PASSWORDS.get(permissionMode));
+					oUser.save();
+					logger.trace("Updating password for user {}", permissionMode.toString());
+				}
 				
-			OUser admin = oSecurity.getUser(DEFAULT_ADMIN_USERNAME);
+				logger.trace(
-			admin.setPassword(CHANGED_ADMIN_PASSWORD);
+						"Setting Record-level Security (see https://orientdb.com/docs/last/Database-Security.html)");
-			admin.save();
+				OSchema oSchema = oMetadata.getSchema();
+				OClass oRestricted = oSchema.getClass(O_RESTRICTED_CLASS);
 				
-			logger.trace("Creating new admin named '{}'", CHANGED_ADMIN_USERNAME);
+				OClass v = oSchema.getClass("V");
-			ORole adminRole = oSecurity.getRole(DEFAULT_ADMIN_ROLE);
+				v.addSuperClass(oRestricted);
-			OUser newAdminUser = oSecurity.createUser(CHANGED_ADMIN_USERNAME, CHANGED_ADMIN_PASSWORD, adminRole);
-			newAdminUser.save();
 				
-			for(PermissionMode permissionMode : DEFAULT_PASSWORDS.keySet()) {
+				OClass e = oSchema.getClass("E");
-				OUser oUser = oSecurity.getUser(permissionMode.toString());
+				e.addSuperClass(oRestricted);
-				oUser.setPassword(DEFAULT_PASSWORDS.get(permissionMode));
+				
-				oUser.save();
+				oDatabaseSession.commit();
-				logger.trace("Updating password for user {}", permissionMode.toString());
+				oDatabaseSession.close();
+				
+				pool.close();
+				
+				return true;
 			}
 			
-			logger.trace("Setting Record-level Security (see https://orientdb.com/docs/last/Database-Security.html)");
+			return false;
-			OSchema oSchema = oMetadata.getSchema();
+		} finally {
-			OClass oRestricted = oSchema.getClass(O_RESTRICTED_CLASS);
+			orientDB.close();
-			
-			OClass v = oSchema.getClass("V");
-			v.addSuperClass(oRestricted);
-			
-			OClass e = oSchema.getClass("E");
-			e.addSuperClass(oRestricted);
-			
-			oDatabaseSession.commit();
-			oDatabaseSession.close();
-			
-			pool.close();
-			
-			return true;
 		}
-		
-		orientDB.close();
-		
-		return false;
 	}
 	
 	public static Key getDatabaseKey() {

src/main/java/org/gcube/informationsystem/resourceregistry/instances/base/ERManagement.java

@@ -51,9 +51,7 @@ import com.orientechnologies.orient.core.db.document.ODatabaseDocument;
 import com.orientechnologies.orient.core.metadata.schema.OClass;
 import com.orientechnologies.orient.core.metadata.schema.OProperty;
 import com.orientechnologies.orient.core.metadata.schema.OType;
-import com.orientechnologies.orient.core.record.OEdge;
 import com.orientechnologies.orient.core.record.OElement;
-import com.orientechnologies.orient.core.record.OVertex;
 import com.orientechnologies.orient.core.record.impl.ODocument;
 import com.orientechnologies.orient.core.util.ODateHelper;
 import com.tinkerpop.blueprints.util.StringFactory;
@@ -170,6 +168,10 @@ public abstract class ERManagement<El extends OElement> {
 		}
 	}
 	
+	public void setOClass(OClass oClass) {
+		this.oClass = oClass;
+	}
+	
 	protected OClass getOClass() throws SchemaException, ResourceRegistryException {
 		if(oClass == null) {
 			if(element != null) {
@@ -847,15 +849,10 @@ public abstract class ERManagement<El extends OElement> {
 		Set<String> oldKeys = element.getPropertyNames();
 		
 		Map<String,Object> properties;
-		if(element instanceof OVertex || element instanceof OEdge) {
+		try {
-			try {
+			properties = getPropertyMap(jsonNode, ignoreKeys, ignoreStartWithKeys);
-				properties = getPropertyMap(jsonNode, ignoreKeys, ignoreStartWithKeys);
+		} catch(IOException e) {
-			} catch(IOException e) {
+			throw new ResourceRegistryException(e);
-				throw new ResourceRegistryException(e);
-			}
-		} else {
-			String error = String.format("Error while updating %s properties", element.toString());
-			throw new ResourceRegistryException(error);
 		}
 		
 		oldKeys.removeAll(properties.keySet());

src/main/java/org/gcube/informationsystem/resourceregistry/instances/base/properties/BasePropertyManagement.java

@@ -125,7 +125,7 @@ public class BasePropertyManagement {
 				return jsonNode;
 			}
 			
-			OClass oClass = SchemaManagementImpl.getTypeSchema(type, AccessType.PROPERTY);
+			OClass oClass = SchemaManagementImpl.getTypeSchema(type, AccessType.BASE_PROPERTY);
 			
 			/*
 			 * In case it is an Encrypted type the value is encrypted with the DB Key

src/main/java/org/gcube/informationsystem/resourceregistry/instances/base/relations/BaseRelationManagement.java

@@ -4,7 +4,6 @@ import java.util.UUID;
 
 import org.gcube.informationsystem.base.reference.AccessType;
 import org.gcube.informationsystem.base.reference.entities.BaseEntity;
-import org.gcube.informationsystem.base.reference.relations.BaseRelation;
 import org.gcube.informationsystem.model.reference.relations.Relation;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.relation.RelationNotFoundException;
@@ -25,16 +24,16 @@ import com.orientechnologies.orient.core.record.OVertex;
 /**
  * @author Luca Frosini (ISTI - CNR)
  */
-public abstract class BaseRelationManagement<R extends BaseRelation<S, T>, SEM extends BaseEntityManagement<S>, TEM extends BaseEntityManagement<T>, S extends BaseEntity, T extends BaseEntity>
+public abstract class BaseRelationManagement<SEM extends BaseEntityManagement<? extends BaseEntity>, TEM extends BaseEntityManagement<? extends BaseEntity>>
 		extends ERManagement<OEdge> {
 	
-	protected final Class<S> sourceEntityClass;
+	protected final Class<? extends BaseEntity> sourceEntityClass;
-	protected final Class<T> targetEntityClass;
+	protected final Class<? extends BaseEntity> targetEntityClass;
 	
 	protected SEM sourceEntityManagement;
 	protected TEM targetEntityManagement;
 	
-	protected BaseRelationManagement(AccessType accessType, Class<S> sourceEntityClass, Class<T> targetEntityClass) {
+	protected BaseRelationManagement(AccessType accessType, Class<? extends BaseEntity> sourceEntityClass, Class<? extends BaseEntity> targetEntityClass) {
 		super(accessType);
 		
 		this.ignoreKeys.add(Relation.HEADER_PROPERTY);
@@ -52,7 +51,7 @@ public abstract class BaseRelationManagement<R extends BaseRelation<S, T>, SEM e
 		this.targetEntityManagement = null;
 	}
 	
-	protected BaseRelationManagement(AccessType accessType, Class<S> sourceEntityClass, Class<T> targetEntityClass, SecurityContext workingContext, ODatabaseDocument orientGraph) {
+	protected BaseRelationManagement(AccessType accessType, Class<? extends BaseEntity> sourceEntityClass, Class<? extends BaseEntity> targetEntityClass, SecurityContext workingContext, ODatabaseDocument orientGraph) {
 		this(accessType, sourceEntityClass, targetEntityClass);
 		this.oDatabaseDocument = orientGraph;
 		setWorkingContext(workingContext);
@@ -101,12 +100,12 @@ public abstract class BaseRelationManagement<R extends BaseRelation<S, T>, SEM e
 		
 		try {
 			if(includeSource) {
-				BaseEntityManagement<S> sourceEntityManagement = getSourceEntityManagement();
+				BaseEntityManagement<? extends BaseEntity> sourceEntityManagement = getSourceEntityManagement();
 				((ObjectNode) relation).replace(Relation.SOURCE_PROPERTY, sourceEntityManagement.serializeSelfOnly());
 			}
 			
 			if(includeTarget) {
-				BaseEntityManagement<T> targetEntityManagement = getTargetEntityManagement();
+				BaseEntityManagement<? extends BaseEntity> targetEntityManagement = getTargetEntityManagement();
 				((ObjectNode) relation).replace(Relation.TARGET_PROPERTY, targetEntityManagement.serializeAsJson());
 			}
 			

src/main/java/org/gcube/informationsystem/resourceregistry/instances/context/relations/IsParentOfManagement.java

@@ -2,7 +2,6 @@ package org.gcube.informationsystem.resourceregistry.instances.context.relations
 
 import org.gcube.informationsystem.base.reference.AccessType;
 import org.gcube.informationsystem.context.reference.entities.Context;
-import org.gcube.informationsystem.context.reference.relations.IsParentOf;
 import org.gcube.informationsystem.model.reference.relations.Relation;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.AvailableInAnotherContextException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException;
@@ -26,7 +25,7 @@ import com.orientechnologies.orient.core.record.OVertex;
 /**
  * @author Luca Frosini (ISTI - CNR)
  */
-public class IsParentOfManagement extends BaseRelationManagement<IsParentOf,ContextManagement,ContextManagement, Context, Context> {
+public class IsParentOfManagement extends BaseRelationManagement<ContextManagement,ContextManagement> {
 	
 	public IsParentOfManagement() {
 		super(AccessType.IS_PARENT_OF, Context.class, Context.class);

src/main/java/org/gcube/informationsystem/resourceregistry/instances/model/relations/ConsistsOfManagement.java

@@ -3,11 +3,9 @@ package org.gcube.informationsystem.resourceregistry.instances.model.relations;
 import org.gcube.informationsystem.base.reference.AccessType;
 import org.gcube.informationsystem.model.impl.properties.PropagationConstraintImpl;
 import org.gcube.informationsystem.model.reference.entities.Facet;
-import org.gcube.informationsystem.model.reference.entities.Resource;
 import org.gcube.informationsystem.model.reference.properties.PropagationConstraint;
 import org.gcube.informationsystem.model.reference.properties.PropagationConstraint.AddConstraint;
 import org.gcube.informationsystem.model.reference.properties.PropagationConstraint.RemoveConstraint;
-import org.gcube.informationsystem.model.reference.relations.ConsistsOf;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.relation.consistsOf.ConsistsOfAlreadyPresentException;
@@ -21,7 +19,7 @@ import com.orientechnologies.orient.core.db.document.ODatabaseDocument;
 /**
  * @author Luca Frosini (ISTI - CNR)
  */
-public class ConsistsOfManagement extends RelationManagement<ConsistsOf<Resource, Facet>, FacetManagement, Facet> {
+public class ConsistsOfManagement extends RelationManagement<FacetManagement> {
 	
 	public static final PropagationConstraint DEFAULT_CONSISTS_OF_PC;
 

src/main/java/org/gcube/informationsystem/resourceregistry/instances/model/relations/IsRelatedToManagement.java

@@ -6,7 +6,6 @@ import org.gcube.informationsystem.model.reference.entities.Resource;
 import org.gcube.informationsystem.model.reference.properties.PropagationConstraint;
 import org.gcube.informationsystem.model.reference.properties.PropagationConstraint.AddConstraint;
 import org.gcube.informationsystem.model.reference.properties.PropagationConstraint.RemoveConstraint;
-import org.gcube.informationsystem.model.reference.relations.IsRelatedTo;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.relation.isrelatedto.IsRelatedToAlreadyPresentException;
@@ -20,7 +19,7 @@ import com.orientechnologies.orient.core.db.document.ODatabaseDocument;
 /**
  * @author Luca Frosini (ISTI - CNR)
  */
-public class IsRelatedToManagement extends RelationManagement<IsRelatedTo<Resource, Resource>, ResourceManagement, Resource> {
+public class IsRelatedToManagement extends RelationManagement<ResourceManagement> {
 	
 	public static final PropagationConstraint DEFAULT_IS_RELATED_TO_PC;
 

src/main/java/org/gcube/informationsystem/resourceregistry/instances/model/relations/RelationManagement.java

@@ -45,17 +45,17 @@ import com.orientechnologies.orient.core.record.impl.ODocument;
 /**
  * @author Luca Frosini (ISTI - CNR)
  */
-public abstract class RelationManagement<R extends Relation<Resource, TE>, T extends EntityManagement<TE>, TE extends Entity>
+public abstract class RelationManagement<T extends EntityManagement<? extends Entity>>
-		extends BaseRelationManagement<R, ResourceManagement, T, Resource, TE>{
+		extends BaseRelationManagement<ResourceManagement, T>{
 	
 	public final PropagationConstraint defaultPropagationConstraint;
 	
-	protected RelationManagement(AccessType accessType, Class<TE> targetEntityClass, PropagationConstraint defaultPropagationConstraint) {
+	protected RelationManagement(AccessType accessType, Class<? extends Entity> targetEntityClass, PropagationConstraint defaultPropagationConstraint) {
 		super(accessType, Resource.class, targetEntityClass);
 		this.defaultPropagationConstraint = defaultPropagationConstraint;
 	}
 	
-	protected RelationManagement(AccessType accessType, Class<TE> targetEntityClass, SecurityContext workingContext, ODatabaseDocument orientGraph,
+	protected RelationManagement(AccessType accessType, Class<? extends Entity> targetEntityClass, SecurityContext workingContext, ODatabaseDocument orientGraph,
 			PropagationConstraint defaultPropagationConstraint) {
 		this(accessType, targetEntityClass, defaultPropagationConstraint);
 		this.oDatabaseDocument = orientGraph;
@@ -119,7 +119,7 @@ public abstract class RelationManagement<R extends Relation<Resource, TE>, T ext
 			}
 			
 			if(includeTarget) {
-				EntityManagement<TE> targetEntityManagement = getTargetEntityManagement();
+				EntityManagement<? extends Entity> targetEntityManagement = getTargetEntityManagement();
 				((ObjectNode) relation).replace(Relation.TARGET_PROPERTY, targetEntityManagement.serializeAsJson());
 			}
 			
@@ -471,7 +471,7 @@ public abstract class RelationManagement<R extends Relation<Resource, TE>, T ext
 				continue;
 			}
 			
-			RelationManagement<R, T, TE> relationManagement = ERManagementUtility.getRelationManagement(getWorkingContext(),
+			RelationManagement<T> relationManagement = ERManagementUtility.getRelationManagement(getWorkingContext(),
 					oDatabaseDocument, edge);
 			visitedSourceResources = relationManagement.fullSerialize(visitedSourceResources);
 		}

src/main/java/org/gcube/informationsystem/resourceregistry/instances/type/SchemaContextManagementOld.java

@@ -1,122 +0,0 @@
-package org.gcube.informationsystem.resourceregistry.instances.type;
-
-import java.util.Iterator;
-
-import org.gcube.informationsystem.base.reference.AccessType;
-import org.gcube.informationsystem.base.reference.entities.BaseEntity;
-import org.gcube.informationsystem.base.reference.properties.BaseProperty;
-import org.gcube.informationsystem.base.reference.relations.BaseRelation;
-import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaException;
-import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaNotFoundException;
-import org.gcube.informationsystem.resourceregistry.instances.context.ContextUtility;
-import org.gcube.informationsystem.resourceregistry.security.AdminSecurityContext;
-import org.gcube.informationsystem.resourceregistry.security.SecurityContext.PermissionMode;
-import org.gcube.informationsystem.types.TypeBinder;
-import org.gcube.informationsystem.types.reference.TypeDefinition;
-import org.gcube.informationsystem.types.reference.relations.RelationTypeDefinition;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import com.orientechnologies.orient.core.db.document.ODatabaseDocument;
-import com.orientechnologies.orient.core.record.OEdge;
-import com.orientechnologies.orient.core.record.OVertex;
-import com.orientechnologies.orient.core.record.impl.ODocument;
-
-public class SchemaContextManagementOld implements SchemaManagement {
-	
-	private static Logger logger = LoggerFactory.getLogger(SchemaContextManagementOld.class);
-	
-	public static final String SCHEMA = "__SCHEMA";
-	
-	protected OVertex getVertex(ODatabaseDocument oDatabaseDocument, String vertexType) throws Exception {
-		Iterable<ODocument> iterable = oDatabaseDocument.browseClass(vertexType, false);
-		Iterator<ODocument> iterator = iterable.iterator();
-		
-		OVertex vertex = null;
-		if(iterator.hasNext()) {
-			vertex = (OVertex) iterator.next();
-		} else {
-			String error = String.format("%s is not a registered type", vertexType);
-			logger.trace(error);
-			throw new Exception(error);
-		}
-		
-		if(iterator.hasNext()) {
-			String error = String.format(
-					"More than one instance of %s found in Management Context. This MUST not happen. Please contact system administrator.",
-					vertexType);
-			logger.error(error);
-			throw new Exception(error);
-		}
-		
-		return vertex;
-	}
-	
-	@Override
-	public String create(String json, AccessType baseType) throws SchemaException {
-		
-		ODatabaseDocument orientGraph = null;
-		
-		try {
-			AdminSecurityContext adminSecurityContext = ContextUtility.getAdminSecurityContext();
-			orientGraph = adminSecurityContext.getDatabaseDocument(PermissionMode.WRITER);
-			
-			TypeDefinition typeDefinition = TypeBinder.deserializeTypeDefinition(json);
-			
-			if(BaseEntity.class.isAssignableFrom(baseType.getTypeClass())) {
-				OVertex oVertex = orientGraph.newVertex(typeDefinition.getName());
-				oVertex.setProperty(SCHEMA, json);
-				oVertex.save();
-			} else if(BaseRelation.class.isAssignableFrom(baseType.getTypeClass())) {
-				@SuppressWarnings("rawtypes")
-				String sourceClass = ((RelationTypeDefinition) typeDefinition).getSourceType();
-				OVertex source = getVertex(orientGraph, sourceClass);
-				
-				@SuppressWarnings("rawtypes")
-				String targetClass = ((RelationTypeDefinition) typeDefinition).getTargetType();
-				OVertex target = getVertex(orientGraph, targetClass);
-				
-				OEdge oEdge = orientGraph.newEdge(source, target, typeDefinition.getName());
-				oEdge.setProperty(SCHEMA, json);
-				oEdge.save();
-				
-			} else if(BaseProperty.class.isAssignableFrom(baseType.getTypeClass())) {
-				ODocument doc = new ODocument(typeDefinition.getName());
-				doc.field(SCHEMA, json);
-				doc.save();
-			}
-			
-			orientGraph.commit();
-			return json;
-			
-		} catch(Exception e) {
-			if(orientGraph != null) {
-				orientGraph.rollback();
-			}
-			throw new SchemaException(e);
-		} finally {
-			if(orientGraph != null) {
-				orientGraph.close();
-			}
-		}
-		
-	}
-	
-	@Override
-	public String read(String type, boolean includeSubtypes) throws SchemaNotFoundException, SchemaException {
-		// TODO Auto-generated method stub
-		return null;
-	}
-	
-	@Override
-	public String update(String type, AccessType accessType, String json)
-			throws SchemaNotFoundException, SchemaException {
-		throw new UnsupportedOperationException("Not Yet implemented");
-	}
-	
-	@Override
-	public String delete(String type, AccessType accessType) throws SchemaNotFoundException {
-		throw new UnsupportedOperationException("Not Yet implemented");
-	}
-	
-}

src/main/java/org/gcube/informationsystem/resourceregistry/instances/type/SchemaManagement.java

@@ -1,6 +1,7 @@
 package org.gcube.informationsystem.resourceregistry.instances.type;
 
 import org.gcube.informationsystem.base.reference.AccessType;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaAlreadyPresentException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaNotFoundException;
 
@@ -12,7 +13,7 @@ import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.Schema
  */
 public interface SchemaManagement {
 	
-	public String create(String json, AccessType accessType) throws SchemaException;
+	public String create(String json, AccessType accessType) throws SchemaAlreadyPresentException, SchemaException;
 	
 	public String read(String type, boolean includeSubtypes) throws SchemaNotFoundException, SchemaException;
 	

src/main/java/org/gcube/informationsystem/resourceregistry/instances/type/SchemaManagementImpl.java

@@ -5,13 +5,10 @@ package org.gcube.informationsystem.resourceregistry.instances.type;
 
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Set;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.Future;
 
 import javax.activation.UnsupportedDataTypeException;
 
@@ -19,6 +16,7 @@ import org.gcube.informationsystem.base.reference.AccessType;
 import org.gcube.informationsystem.base.reference.ISManageable;
 import org.gcube.informationsystem.base.reference.entities.BaseEntity;
 import org.gcube.informationsystem.base.reference.properties.BaseProperty;
+import org.gcube.informationsystem.base.reference.properties.Header;
 import org.gcube.informationsystem.base.reference.relations.BaseRelation;
 import org.gcube.informationsystem.model.reference.entities.Entity;
 import org.gcube.informationsystem.model.reference.entities.Resource;
@@ -29,7 +27,11 @@ import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.Schema
 import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaCreationException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaNotFoundException;
+import org.gcube.informationsystem.resourceregistry.instances.base.ERManagement;
 import org.gcube.informationsystem.resourceregistry.instances.context.ContextUtility;
+import org.gcube.informationsystem.resourceregistry.instances.type.entities.EntityTypeDefinitionManagement;
+import org.gcube.informationsystem.resourceregistry.instances.type.properties.PropertyTypeDefinitionManagement;
+import org.gcube.informationsystem.resourceregistry.instances.type.relations.RelationTypeDefinitionManagement;
 import org.gcube.informationsystem.resourceregistry.security.AdminSecurityContext;
 import org.gcube.informationsystem.resourceregistry.security.SecurityContext.PermissionMode;
 import org.gcube.informationsystem.types.Type;
@@ -54,15 +56,11 @@ import com.orientechnologies.orient.core.metadata.schema.OClassImpl;
 import com.orientechnologies.orient.core.metadata.schema.OProperty;
 import com.orientechnologies.orient.core.metadata.schema.OSchema;
 import com.orientechnologies.orient.core.metadata.schema.OType;
+import com.orientechnologies.orient.core.record.OElement;
 import com.orientechnologies.orient.core.record.impl.ODocument;
-import com.tinkerpop.blueprints.impls.orient.OrientElementType;
 
 /**
  * @author Luca Frosini (ISTI - CNR)
- * 
- * TODO Create an instance for each Registered Type in a management SecurityContext so that that management context 
- * can be used to see Entity and Relations as graph.
- * 
  */
 public class SchemaManagementImpl implements SchemaManagement {
 	
@@ -85,7 +83,8 @@ public class SchemaManagementImpl implements SchemaManagement {
 		return getTypeSchema(oSchema, type, accessType);
 	}
 	
-	public static OClass getTypeSchema(OSchema oSchema, String type, AccessType accessType) throws SchemaException, SchemaNotFoundException {
+	public static OClass getTypeSchema(OSchema oSchema, String type, AccessType accessType)
+			throws SchemaException, SchemaNotFoundException {
 		try {
 			OClass oClass = oSchema.getClass(type);
 			if(oClass == null) {
@@ -104,45 +103,65 @@ public class SchemaManagementImpl implements SchemaManagement {
 		}
 	}
 	
-	
-	
-	
 	public static OClass getTypeSchema(String type, AccessType accessType)
 			throws SchemaException, ResourceRegistryException {
-		// TODO Add a Type cache
+		ODatabaseDocument current = ContextUtility.getCurrentODatabaseDocumentFromThreadLocal();
+		ODatabaseDocument oDatabaseDocument = null;
+		try {
+			logger.debug("Getting {} Type {} schema", accessType != null ? accessType.getName() : "", type);
+			AdminSecurityContext adminSecurityContext = ContextUtility.getAdminSecurityContext();
+			oDatabaseDocument = adminSecurityContext.getDatabaseDocument(PermissionMode.READER);
+			return getTypeSchema(oDatabaseDocument, type, accessType);
+		} catch(ResourceRegistryException e) {
+			throw e;
+		} catch(Exception e) {
+			throw new ResourceRegistryException(e);
+		} finally {
+			if(oDatabaseDocument != null) {
+				oDatabaseDocument.close();
+			}
+			
+			if(current!=null) {
+				current.activateOnCurrentThread();
+			}
+		}
+		
+		/*
 		try {
 			ExecutorService es = Executors.newSingleThreadExecutor();
-		    Future<OClass> result = es.submit(new Callable<OClass>() {
+			Future<OClass> result = es.submit(new Callable<OClass>() {
-		        public OClass call() throws Exception {
+				public OClass call() throws Exception {
-		        	ODatabaseDocument oDatabaseDocument = null;
+					ODatabaseDocument oDatabaseDocument = null;
-		    		try {
+					try {
-		    			logger.debug("Getting {} Type {} schema", accessType != null ? accessType.getName() : "", type);
+						logger.debug("Getting {} Type {} schema", accessType != null ? accessType.getName() : "", type);
 						
-		    			AdminSecurityContext adminSecurityContext = ContextUtility.getAdminSecurityContext();
+						AdminSecurityContext adminSecurityContext = ContextUtility.getAdminSecurityContext();
-		    			oDatabaseDocument = adminSecurityContext.getDatabaseDocument(PermissionMode.READER);
+						oDatabaseDocument = adminSecurityContext.getDatabaseDocument(PermissionMode.READER);
-		    			oDatabaseDocument.activateOnCurrentThread();
+						oDatabaseDocument.activateOnCurrentThread();
-		    			return getTypeSchema(oDatabaseDocument, type, accessType);
+						return getTypeSchema(oDatabaseDocument, type, accessType);
-		    		} catch(ResourceRegistryException e) {
+					} catch(ResourceRegistryException e) {
-		    			throw e;
+						throw e;
-		    		}catch(Exception e) {
+					} catch(Exception e) {
-		    			throw new ResourceRegistryException(e);
+						throw new ResourceRegistryException(e);
-		    		} finally {
+					} finally {
-		    			if(oDatabaseDocument != null) {
+						if(oDatabaseDocument != null) {
-		    				oDatabaseDocument.close();
+							oDatabaseDocument.close();
-		    			}
+						}
-		    		}
+					}
-		        }
+				}
-		    });
+			});
 			return result.get();
-		}  catch(Exception e) {
+		} catch(Exception e) {
 			throw new ResourceRegistryException(e);
 		}
+		*/
 	}
 	
-	protected static TypeDefinition getTypeDefinition(OClass oClass) throws SchemaException {
+	@SuppressWarnings("unused")
-		ODocument oDocument = ((OClassImpl) oClass).toStream();
+	private static TypeDefinition getOClassTypeDefinition(OClass oClass) throws SchemaException {
-		String json = oDocument.toJSON();
 		try {
+			ODocument oDocument = ((OClassImpl) oClass).toStream();
+			String json = oDocument.toJSON();
 			ObjectMapper mapper = new ObjectMapper();
 			ObjectNode node = (ObjectNode) mapper.readTree(json);
 			
@@ -170,6 +189,28 @@ public class SchemaManagementImpl implements SchemaManagement {
 		}
 	}
 	
+	private static TypeDefinition getTypeDefinition(OClass oClass) throws SchemaException {
+		try {
+			ERManagement<? extends OElement> erManagement = null;
+			
+			if(oClass.isSubClassOf(BaseProperty.NAME)) {
+				erManagement = new PropertyTypeDefinitionManagement();
+				((PropertyTypeDefinitionManagement) erManagement).setName(oClass.getName());
+			} else if(oClass.isSubClassOf(BaseEntity.NAME)) {
+				erManagement = new EntityTypeDefinitionManagement();
+				((EntityTypeDefinitionManagement) erManagement).setName(oClass.getName());
+			} else if(oClass.isSubClassOf(BaseRelation.NAME)) {
+				erManagement = new RelationTypeDefinitionManagement();
+				((RelationTypeDefinitionManagement) erManagement).setName(oClass.getName());
+			}
+			
+			String ret = erManagement.serialize();
+			return TypeBinder.deserializeTypeDefinition(ret);
+		} catch(Exception e) {
+			throw new SchemaException(e);
+		}
+	}
+	
 	protected static String getTypeDefinitionAsString(OClass oClass) throws SchemaException {
 		try {
 			TypeDefinition typeDefinition = getTypeDefinition(oClass);
@@ -214,41 +255,42 @@ public class SchemaManagementImpl implements SchemaManagement {
 		return oSuperclasses;
 	}
 	
-	private static List<String> baseTypes;
+	private static Set<String> baseTypes;
-	private static List<String> typeDefinitionTypes;
+	private static Set<String> typeDefinitionTypes;
+	private static Set<String> skipTypeDefinitionCreation;
 	
 	static {
-		baseTypes = new ArrayList<String>();
+		baseTypes = new HashSet<String>();
 		baseTypes.add(BaseProperty.NAME);
 		baseTypes.add(BaseEntity.NAME);
 		baseTypes.add(BaseRelation.NAME);
 		
-		typeDefinitionTypes = new ArrayList<String>();
+		typeDefinitionTypes = new HashSet<String>();
 		typeDefinitionTypes.add(PropertyTypeDefinition.NAME);
 		typeDefinitionTypes.add(EntityTypeDefinition.NAME);
 		typeDefinitionTypes.add(RelationTypeDefinition.NAME);
+		
+		skipTypeDefinitionCreation = new HashSet<String>();
+		skipTypeDefinitionCreation.addAll(baseTypes);
+		skipTypeDefinitionCreation.addAll(typeDefinitionTypes);
+		skipTypeDefinitionCreation.add(Header.NAME);
+		skipTypeDefinitionCreation.add(PropertyDefinition.NAME);
+		
 	}
 	
-	protected String registerTypeSchema(String jsonSchema, AccessType baseType) throws SchemaException {
+	protected void registerTypeSchema(TypeDefinition typeDefinition, AccessType baseType)
+			throws SchemaAlreadyPresentException, SchemaException {
 		
 		ODatabaseDocument oDatabaseDocument = null;
 		try {
-			TypeDefinition typeDefinition = null;
-			try {
-				typeDefinition = TypeBinder.deserializeTypeDefinition(jsonSchema);
-				logger.info("Trying to register {} {} : {}", baseType.getName(), typeDefinition.getName(), jsonSchema);
-			}catch (Exception e) {
-				logger.error("Error while trying to register {} {}", baseType.getName(), jsonSchema);
-				throw e;
-			}
 			
-			
+			if(typeName.compareTo(typeDefinition.getName()) != 0) {
-			if(typeName.compareTo(typeDefinition.getName())!=0) {
+				String error = String.format(
-				String error = String.format("Provided type name path argument %s does not match with the type name in the definition %S. Please be coherent.", typeName, typeDefinition.getName());
+						"Provided type name path argument %s does not match with the type name in the definition %S. Please be coherent.",
+						typeName, typeDefinition.getName());
 				throw new SchemaCreationException(error);
 			}
 			
-			
 			AdminSecurityContext adminSecurityContext = ContextUtility.getAdminSecurityContext();
 			oDatabaseDocument = adminSecurityContext.getDatabaseDocument(PermissionMode.WRITER);
 			
@@ -261,13 +303,6 @@ public class SchemaManagementImpl implements SchemaManagement {
 				oClass = oDatabaseDocument.createVertexClass(typeDefinition.getName());
 			} else if(BaseRelation.class.isAssignableFrom(baseType.getTypeClass())) {
 				oClass = oDatabaseDocument.createEdgeClass(typeDefinition.getName());
-				
-				/*
-				 * This information are persisted in Management Context String outBaseType =
-				 * typeDefinition.getOutBaseType(); String inBaseType =
-				 * typeDefinition.getInBaseType();
-				 */
-				
 			} else if(BaseProperty.class.isAssignableFrom(baseType.getTypeClass())) {
 				oClass = oSchema.createClass(typeDefinition.getName());
 			} else {
@@ -279,7 +314,7 @@ public class SchemaManagementImpl implements SchemaManagement {
 			try {
 				
 				String description = typeDefinition.getDescription();
-				if(description!=null && description.compareTo("")!=0) {
+				if(description != null && description.compareTo("") != 0) {
 					try {
 						oClass.setDescription(description);
 					} catch(Exception e) {
@@ -298,7 +333,7 @@ public class SchemaManagementImpl implements SchemaManagement {
 							typeDefinition.getName());
 				}
 				
-				if(! baseTypes.contains(typeDefinition.getName())) {
+				if(!baseTypes.contains(typeDefinition.getName())) {
 					List<OClass> oSuperclasses = getSuperclassesAndCheckCompliancy(oDatabaseDocument, typeDefinition,
 							baseType.getName());
 					oClass.setSuperClasses(oSuperclasses);
@@ -353,7 +388,8 @@ public class SchemaManagementImpl implements SchemaManagement {
 							OClass linkedClass = getOClass(oSchema, propertyDefinition.getLinkedClass());
 							if(linkedClass == null) {
 								logger.trace("class {} not found in schema", propertyDefinition.getLinkedClass());
-								throw new Exception("class " + propertyDefinition.getLinkedClass() + " not found in schema");
+								throw new Exception(
+										"class " + propertyDefinition.getLinkedClass() + " not found in schema");
 							}
 							
 							if(linkedClass.isEdgeType() || linkedClass.isVertexType()) {
@@ -367,21 +403,10 @@ public class SchemaManagementImpl implements SchemaManagement {
 					}
 				}
 				
-				OClass toBeSerializedOClass = oClass;
+				oDatabaseDocument.commit();
-				if(oClass instanceof OrientElementType) {
-					toBeSerializedOClass = getOClass(oSchema, typeDefinition.getName());
-				}
 				
-				/*
+				logger.info("{} {} registered successfully", baseType.getName(), typeDefinition.getName());
-				 * SchemaContextManagement managementUtility = new SchemaContextManagement();
-				 * String ret = managementUtility.create(jsonSchema, baseType);
-				 */
 				
-				// TODO Remove when the previous has been implemented
-				String ret = getTypeDefinitionAsString(toBeSerializedOClass);
-				
-				logger.info("{} type registered successfully: {}", baseType.getName(), jsonSchema);
-				return ret;
 			} catch(Exception e) {
 				oSchema.dropClass(typeDefinition.getName());
 				throw e;
@@ -396,9 +421,7 @@ public class SchemaManagementImpl implements SchemaManagement {
 		} catch(Exception ex) {
 			throw new SchemaCreationException(ex);
 		} finally {
-			if(oDatabaseDocument != null) {
+			oDatabaseDocument.close();
-				oDatabaseDocument.close();
-			}
 		}
 	}
 	
@@ -436,8 +459,46 @@ public class SchemaManagementImpl implements SchemaManagement {
 	}
 	
 	@Override
-	public String create(String jsonSchema, AccessType accessType) throws SchemaException {
+	public String create(String jsonSchema, AccessType accessType) throws SchemaAlreadyPresentException, SchemaException {
-		return registerTypeSchema(jsonSchema, accessType);
+		TypeDefinition typeDefinition = null;
+		try {
+			try {
+				typeDefinition = TypeBinder.deserializeTypeDefinition(jsonSchema);
+				logger.info("Trying to register {} {} : {}", accessType.getName(), typeDefinition.getName(),
+						jsonSchema);
+			} catch(Exception e) {
+				logger.error("Error while trying to register {} {}", accessType.getName(), jsonSchema);
+				throw new SchemaCreationException(e);
+			}
+			
+			registerTypeSchema(typeDefinition, accessType);
+			
+			ERManagement<? extends OElement> erManagement = null;
+			
+			if(BaseEntity.class.isAssignableFrom(accessType.getTypeClass())) {
+				erManagement = new EntityTypeDefinitionManagement();
+			} else if(BaseRelation.class.isAssignableFrom(accessType.getTypeClass())) {
+				erManagement = new RelationTypeDefinitionManagement();
+			} else if(BaseProperty.class.isAssignableFrom(accessType.getTypeClass())) {
+				erManagement = new PropertyTypeDefinitionManagement();
+			}
+			
+			String ret = null;
+			if(!typeDefinitionTypes.contains(typeDefinition.getName())
+					&& !skipTypeDefinitionCreation.contains(typeDefinition.getName())) {
+				erManagement.setJson(jsonSchema);
+				ret = erManagement.create();
+			}else {
+				ret = TypeBinder.serializeTypeDefinition(typeDefinition);
+			}
+			return ret;
+		} catch(SchemaAlreadyPresentException e) {
+			throw e;
+		} catch(SchemaException e) {
+			throw e;
+		} catch(Exception ex) {
+			throw new SchemaCreationException(ex);
+		}
 	}
 	
 	@Override
@@ -448,12 +509,12 @@ public class SchemaManagementImpl implements SchemaManagement {
 	@Override
 	public String update(String entityType, AccessType accessType, String jsonSchema)
 			throws SchemaNotFoundException, SchemaException {
-		throw new UnsupportedOperationException("Not Yet implemented");
+		throw new UnsupportedOperationException();
 	}
 	
 	@Override
 	public String delete(String entityType, AccessType accessType) throws SchemaNotFoundException {
-		throw new UnsupportedOperationException("Not Yet implemented");
+		throw new UnsupportedOperationException();
 	}
 	
 }

src/main/java/org/gcube/informationsystem/resourceregistry/instances/type/entities/EntityTypeDefinitionManagement.java

@@ -1,21 +1,24 @@
 package org.gcube.informationsystem.resourceregistry.instances.type.entities;
 
+import java.util.HashMap;
+
 import javax.ws.rs.NotAcceptableException;
 
 import org.gcube.informationsystem.base.reference.AccessType;
-import org.gcube.informationsystem.base.reference.entities.BaseEntity;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.AlreadyPresentException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.AvailableInAnotherContextException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.context.ContextException;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.entity.EntityAlreadyPresentException;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaAlreadyPresentException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaNotFoundException;
 import org.gcube.informationsystem.resourceregistry.dbinitialization.DatabaseEnvironment;
 import org.gcube.informationsystem.resourceregistry.instances.base.ERManagement;
 import org.gcube.informationsystem.resourceregistry.instances.base.entities.BaseEntityManagement;
 import org.gcube.informationsystem.resourceregistry.instances.context.ContextUtility;
-import org.gcube.informationsystem.resourceregistry.instances.context.entities.ContextManagement;
 import org.gcube.informationsystem.resourceregistry.security.SecurityContext;
+import org.gcube.informationsystem.resourceregistry.utils.Utility;
 import org.gcube.informationsystem.types.reference.entities.EntityTypeDefinition;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -23,10 +26,12 @@ import org.slf4j.LoggerFactory;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.orientechnologies.orient.core.db.document.ODatabaseDocument;
 import com.orientechnologies.orient.core.record.OVertex;
+import com.orientechnologies.orient.core.sql.executor.OResult;
+import com.orientechnologies.orient.core.sql.executor.OResultSet;
 
-public class EntityTypeDefinitionManagement<ETD extends EntityTypeDefinition<? extends BaseEntity>> extends BaseEntityManagement<ETD> {
+public class EntityTypeDefinitionManagement extends BaseEntityManagement<EntityTypeDefinition> {
 	
-	private static Logger logger = LoggerFactory.getLogger(ContextManagement.class);
+	private static Logger logger = LoggerFactory.getLogger(EntityTypeDefinitionManagement.class);
 	
 	protected String name;
 	
@@ -39,12 +44,16 @@ public class EntityTypeDefinitionManagement<ETD extends EntityTypeDefinition<? e
 		init();
 	}
 	
-	public EntityTypeDefinitionManagement(ODatabaseDocument orientGraph) throws ResourceRegistryException {
+	public EntityTypeDefinitionManagement(ODatabaseDocument oDatabaseDocument) throws ResourceRegistryException {
 		this();
-		this.oDatabaseDocument = orientGraph;
+		this.oDatabaseDocument = oDatabaseDocument;
 		getWorkingContext();
 	}
 	
+	public void setName(String name) {
+		this.name = name;
+	}
+	
 	public String getName() {
 		if(name == null) {
 			if(element == null) {
@@ -58,6 +67,91 @@ public class EntityTypeDefinitionManagement<ETD extends EntityTypeDefinition<? e
 		return name;
 	}
 	
+	@Override
+	public OVertex getElement() throws NotFoundException, ResourceRegistryException {
+		if(element == null) {
+			try {
+				element = retrieveElement();
+			} catch(NotFoundException e) {
+				throw e;
+			} catch(ResourceRegistryException e) {
+				throw e;
+			} catch(Exception e) {
+				throw new ResourceRegistryException(e);
+			}
+			
+		} else {
+			if(reload) {
+				element.reload();
+			}
+		}
+		return element;
+	}
+	
+	@Override
+	public OVertex retrieveElement() throws NotFoundException, ResourceRegistryException {
+		try {
+			if(getName() == null) {
+				throw new NotFoundException("null name does not allow to retrieve the Element");
+			}
+			
+			String select = "SELECT FROM " + elementType + " WHERE " + EntityTypeDefinition.NAME_PROPERTY 
+					+ " = \"" + getName() + "\"";
+			
+			OResultSet resultSet = oDatabaseDocument.query(select, new HashMap<>());
+			
+			
+			if(resultSet == null || !resultSet.hasNext()) {
+				String error = String.format("No %s with name %s was found", elementType, getName());
+				logger.info(error);
+				throw new NotFoundException(error);
+			}
+			
+			OResult oResult = resultSet.next();
+			OVertex element = (OVertex) ERManagement.getElementFromOptional(oResult.getElement());
+			
+			logger.trace("{} with id {} is : {}", elementType, getName(), Utility.toJsonString(element, true));
+			
+			if(resultSet.hasNext()) {
+				throw new ResourceRegistryException("Found more than one " + elementType + " with name " + getName()
+						+ ". This is a fatal error please contact Admnistrator");
+			}
+			
+			return element;
+		} catch(NotFoundException e) {
+			throw getSpecificElementNotFoundException(e);
+		} catch(ResourceRegistryException e) {
+			throw e;
+		} catch(Exception e) {
+			throw new ResourceRegistryException(e);
+		}
+	}
+	
+	@Override
+	protected OVertex createVertex() throws EntityAlreadyPresentException, ResourceRegistryException {
+		
+		logger.trace("Going to create {} for {} ({}) using {}", OVertex.class.getSimpleName(), accessType.getName(),
+				elementType, jsonNode);
+		
+		try {
+			
+			this.element = oDatabaseDocument.newVertex(elementType);
+			
+			ERManagement.updateProperties(oClass, element, jsonNode, ignoreKeys, ignoreStartWithKeys);
+			
+			logger.info("Created {} is {}", OVertex.class.getSimpleName(),
+					Utility.toJsonString(element, true));
+			
+			return element;
+		} catch(ResourceRegistryException e) {
+			throw e;
+		} catch(Exception e) {
+			logger.trace("Error while creating {} for {} ({}) using {}", OVertex.class.getSimpleName(),
+					accessType.getName(), elementType, jsonNode, e);
+			throw new ResourceRegistryException("Error Creating " + elementType + " with " + jsonNode, e.getCause());
+		}
+	}
+	
 	@Override
 	protected SecurityContext getWorkingContext() throws ResourceRegistryException {
 		if(workingContext == null) {
@@ -68,7 +162,7 @@ public class EntityTypeDefinitionManagement<ETD extends EntityTypeDefinition<? e
 	}
 	
 	@Override
-	protected SchemaNotFoundException getSpecificElementNotFoundException(NotFoundException e) {
+	protected NotFoundException getSpecificElementNotFoundException(NotFoundException e) {
 		return new SchemaNotFoundException(e.getMessage(), e.getCause());
 	}
 	
@@ -79,7 +173,7 @@ public class EntityTypeDefinitionManagement<ETD extends EntityTypeDefinition<? e
 	
 	@Override
 	protected AlreadyPresentException getSpecificERAlreadyPresentException(String message) {
-		throw new NotAcceptableException();
+		return new SchemaAlreadyPresentException(message);
 	}
 	
 	@Override

src/main/java/org/gcube/informationsystem/resourceregistry/instances/type/properties/PropertyTypeDefinitionManagement.java

@@ -1,5 +1,215 @@
 package org.gcube.informationsystem.resourceregistry.instances.type.properties;
 
-public class PropertyTypeDefinitionManagement {
+import java.util.HashMap;
+
+import org.gcube.informationsystem.base.reference.AccessType;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.AlreadyPresentException;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.AvailableInAnotherContextException;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.context.ContextException;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaAlreadyPresentException;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaNotFoundException;
+import org.gcube.informationsystem.resourceregistry.dbinitialization.DatabaseEnvironment;
+import org.gcube.informationsystem.resourceregistry.instances.base.ERManagement;
+import org.gcube.informationsystem.resourceregistry.instances.context.ContextUtility;
+import org.gcube.informationsystem.resourceregistry.security.SecurityContext;
+import org.gcube.informationsystem.resourceregistry.utils.Utility;
+import org.gcube.informationsystem.types.reference.entities.EntityTypeDefinition;
+import org.gcube.informationsystem.types.reference.properties.PropertyTypeDefinition;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.orientechnologies.orient.core.db.document.ODatabaseDocument;
+import com.orientechnologies.orient.core.record.OElement;
+import com.orientechnologies.orient.core.record.impl.ODocument;
+import com.orientechnologies.orient.core.sql.executor.OResult;
+import com.orientechnologies.orient.core.sql.executor.OResultSet;
+
+public class PropertyTypeDefinitionManagement extends ERManagement<OElement> {
+	
+	private static Logger logger = LoggerFactory.getLogger(PropertyTypeDefinitionManagement.class);
+	
+	protected String name;
+	
+	private void init() {
+		this.elementType = PropertyTypeDefinition.NAME;
+	}
+	
+	public PropertyTypeDefinitionManagement() {
+		super(AccessType.PROPERTY_TYPE_DEFINITION);
+		init();
+	}
+	
+	public PropertyTypeDefinitionManagement(ODatabaseDocument oDatabaseDocument) throws ResourceRegistryException {
+		this();
+		this.oDatabaseDocument = oDatabaseDocument;
+		getWorkingContext();
+	}
+	
+	@Override
+	protected SecurityContext getWorkingContext() throws ResourceRegistryException {
+		if(workingContext == null) {
+			workingContext = ContextUtility.getInstance()
+					.getSecurityContextByUUID(DatabaseEnvironment.SCHEMA_SECURITY_CONTEXT_UUID);
+		}
+		return workingContext;
+	}
+	
+	public void setName(String name) {
+		this.name = name;
+	}
+	
+	public String getName() {
+		if(name == null) {
+			if(element == null) {
+				if(jsonNode != null) {
+					name = jsonNode.get(PropertyTypeDefinition.NAME_PROPERTY).asText();
+				}
+			} else {
+				name = element.getProperty(PropertyTypeDefinition.NAME_PROPERTY);
+			}
+		}
+		return name;
+	}
+	
+	@Override
+	public String serialize() throws ResourceRegistryException {
+		return serializeAsJson().toString();
+	}
+	
+	@Override
+	public JsonNode serializeAsJson() throws ResourceRegistryException {
+		return serializeSelfOnly();
+	}
+	
+	@Override
+	protected OElement reallyCreate() throws AlreadyPresentException, ResourceRegistryException {
+		logger.debug("Going to create {} for {}", PropertyTypeDefinition.NAME, getName());
+		
+		try {
+			this.element = new ODocument(elementType);
+			
+			ERManagement.updateProperties(oClass, element, jsonNode, ignoreKeys, ignoreStartWithKeys);
+			
+			logger.debug("Created {} is {}", PropertyTypeDefinition.NAME, Utility.toJsonString(element, true));
+			
+			return element;
+		} catch(ResourceRegistryException e) {
+			throw e;
+		} catch(Exception e) {
+			logger.trace("Error while creating {} for {} ({}) using {}", OElement.class.getSimpleName(),
+					accessType.getName(), elementType, jsonNode, e);
+			throw new ResourceRegistryException("Error Creating " + elementType + " with " + jsonNode, e.getCause());
+		}
+	}
+	
+	@Override
+	protected OElement reallyUpdate() throws NotFoundException, ResourceRegistryException {
+		logger.debug("Going to update {} for {}", EntityTypeDefinition.NAME, getName());
+		OElement propertyTypeDefinition = getElement();
+		propertyTypeDefinition = (OElement) ERManagement.updateProperties(oClass, propertyTypeDefinition, jsonNode,
+				ignoreKeys, ignoreStartWithKeys);
+		return propertyTypeDefinition;
+	}
+	
+	@Override
+	protected boolean reallyDelete() throws NotFoundException, ResourceRegistryException {
+		logger.debug("Going to remove {} for {}", EntityTypeDefinition.NAME, getName());
+		getElement().delete();
+		return true;
+	}
+	
+	@Override
+	public OElement getElement() throws NotFoundException, ResourceRegistryException {
+		if(element == null) {
+			try {
+				element = retrieveElement();
+			} catch(NotFoundException e) {
+				throw e;
+			} catch(ResourceRegistryException e) {
+				throw e;
+			} catch(Exception e) {
+				throw new ResourceRegistryException(e);
+			}
+			
+		} else {
+			if(reload) {
+				element.reload();
+			}
+		}
+		return element;
+	}
+	
+	@Override
+	public OElement retrieveElement() throws NotFoundException, ResourceRegistryException {
+		try {
+			if(getName() == null) {
+				throw new NotFoundException("null name does not allow to retrieve the Element");
+			}
+			
+			String select = "SELECT FROM " + elementType + " WHERE " + PropertyTypeDefinition.NAME_PROPERTY + " = \""
+					+ getName() + "\"";
+			
+			OResultSet resultSet = oDatabaseDocument.query(select, new HashMap<>());
+			
+			if(resultSet == null || !resultSet.hasNext()) {
+				String error = String.format("No %s with name %s was found", elementType, getName());
+				logger.info(error);
+				throw new NotFoundException(error);
+			}
+			
+			OResult oResult = resultSet.next();
+			OElement element = (OElement) ERManagement.getElementFromOptional(oResult.getElement());
+			
+			logger.trace("{} with id {} is : {}", elementType, getName(), Utility.toJsonString(element, true));
+			
+			if(resultSet.hasNext()) {
+				throw new ResourceRegistryException("Found more than one " + elementType + " with name " + getName()
+						+ ". This is a fatal error please contact Admnistrator");
+			}
+			
+			return element;
+		} catch(NotFoundException e) {
+			throw getSpecificElementNotFoundException(e);
+		} catch(ResourceRegistryException e) {
+			throw e;
+		} catch(Exception e) {
+			throw new ResourceRegistryException(e);
+		}
+	}
+	
+	@Override
+	public String reallyGetAll(boolean polymorphic) throws ResourceRegistryException {
+		throw new UnsupportedOperationException();
+	}
+	
+	@Override
+	protected boolean reallyAddToContext(SecurityContext targetSecurityContext)
+			throws ContextException, ResourceRegistryException {
+		throw new UnsupportedOperationException();
+	}
+	
+	@Override
+	protected boolean reallyRemoveFromContext(SecurityContext targetSecurityContext)
+			throws ContextException, ResourceRegistryException {
+		throw new UnsupportedOperationException();
+	}
+	
+	@Override
+	protected NotFoundException getSpecificElementNotFoundException(NotFoundException e) {
+		return new SchemaNotFoundException(e.getMessage(), e.getCause());
+	}
+	
+	@Override
+	protected AvailableInAnotherContextException getSpecificERAvailableInAnotherContextException(String message) {
+		throw new UnsupportedOperationException();
+	}
+	
+	@Override
+	protected AlreadyPresentException getSpecificERAlreadyPresentException(String message) {
+		return new SchemaAlreadyPresentException(message);
+	}
 	
 }

src/main/java/org/gcube/informationsystem/resourceregistry/instances/type/relations/RelationTypeDefinitionManagement.java

@@ -1,40 +1,39 @@
 package org.gcube.informationsystem.resourceregistry.instances.type.relations;
 
+import java.util.HashMap;
+
 import org.gcube.informationsystem.base.reference.AccessType;
-import org.gcube.informationsystem.base.reference.entities.BaseEntity;
 import org.gcube.informationsystem.model.reference.relations.Relation;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.AlreadyPresentException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.AvailableInAnotherContextException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.context.ContextException;
-import org.gcube.informationsystem.resourceregistry.api.exceptions.relation.isparentof.IsParentOfAlreadyPresentException;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaAlreadyPresentException;
-import org.gcube.informationsystem.resourceregistry.api.exceptions.relation.isparentof.IsParentOfNotFoundException;
+import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaNotFoundException;
 import org.gcube.informationsystem.resourceregistry.dbinitialization.DatabaseEnvironment;
+import org.gcube.informationsystem.resourceregistry.instances.base.ERManagement;
 import org.gcube.informationsystem.resourceregistry.instances.base.relations.BaseRelationManagement;
 import org.gcube.informationsystem.resourceregistry.instances.context.ContextUtility;
-import org.gcube.informationsystem.resourceregistry.instances.context.entities.ContextManagement;
 import org.gcube.informationsystem.resourceregistry.instances.type.entities.EntityTypeDefinitionManagement;
 import org.gcube.informationsystem.resourceregistry.security.SecurityContext;
 import org.gcube.informationsystem.resourceregistry.utils.Utility;
 import org.gcube.informationsystem.types.reference.entities.EntityTypeDefinition;
 import org.gcube.informationsystem.types.reference.relations.RelationTypeDefinition;
 
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.orientechnologies.orient.core.db.document.ODatabaseDocument;
-import com.orientechnologies.orient.core.record.ODirection;
+import com.orientechnologies.orient.core.record.OEdge;
 import com.orientechnologies.orient.core.record.OVertex;
+import com.orientechnologies.orient.core.sql.executor.OResult;
+import com.orientechnologies.orient.core.sql.executor.OResultSet;
 
-public class RelationTypeDefinitionManagement<R extends RelationTypeDefinition<SETD, TETD, S, T>, 
+public class RelationTypeDefinitionManagement extends
-	SEM extends EntityTypeDefinitionManagement<SETD>, TEM extends EntityTypeDefinitionManagement<TETD>,
+		BaseRelationManagement<EntityTypeDefinitionManagement,EntityTypeDefinitionManagement> {
-	SETD extends EntityTypeDefinition<S>, TETD extends EntityTypeDefinition<T>,
-	S extends BaseEntity, T extends BaseEntity>
 	
-	extends BaseRelationManagement<R, SEM, TEM, SETD, TETD> {
+	protected String name;
 	
-	@SuppressWarnings("unchecked")
 	public RelationTypeDefinitionManagement() {
-		super(AccessType.RELATION_TYPE_DEFINITION, (Class<SETD>) EntityTypeDefinition.class, (Class<TETD>) EntityTypeDefinition.class);
+		super(AccessType.RELATION_TYPE_DEFINITION, EntityTypeDefinition.class, EntityTypeDefinition.class);
 	}
 	
 	public RelationTypeDefinitionManagement(ODatabaseDocument oDatabaseDocument) throws ResourceRegistryException {
@@ -43,6 +42,23 @@ public class RelationTypeDefinitionManagement<R extends RelationTypeDefinition<S
 		getWorkingContext();
 	}
 	
+	public void setName(String name) {
+		this.name = name;
+	}
+	
+	public String getName() {
+		if(name == null) {
+			if(element == null) {
+				if(jsonNode != null) {
+					name = jsonNode.get(RelationTypeDefinition.NAME_PROPERTY).asText();
+				}
+			} else {
+				name = element.getProperty(RelationTypeDefinition.NAME_PROPERTY);
+			}
+		}
+		return name;
+	}
+	
 	@Override
 	protected SecurityContext getWorkingContext() throws ResourceRegistryException {
 		if(workingContext == null) {
@@ -53,61 +69,126 @@ public class RelationTypeDefinitionManagement<R extends RelationTypeDefinition<S
 	}
 	
 	@Override
-	protected IsParentOfNotFoundException getSpecificElementNotFoundException(NotFoundException e) {
+	protected OEdge reallyCreate() throws ResourceRegistryException {
-		return new IsParentOfNotFoundException(e.getMessage(), e.getCause());
-	}
 		
-	@Override
+		if(sourceEntityManagement == null) {
-	protected IsParentOfAlreadyPresentException getSpecificERAlreadyPresentException(String message) {
-		return new IsParentOfAlreadyPresentException(message);
-	}
 			
-	@Override
+			if(!jsonNode.has(Relation.SOURCE_PROPERTY)) {
-	public JsonNode serializeAsJson() throws ResourceRegistryException {
+				throw new ResourceRegistryException("Error while creating relation. No source definition found");
-		return serializeAsJson(false, true);
-	}
-	
-	public JsonNode serializeAsJson(boolean includeSource, boolean includeTarget) throws ResourceRegistryException {
-		JsonNode relation = serializeSelfOnly();
-		
-		try {
-			OVertex source = element.getVertex(ODirection.OUT);
-			ContextManagement sourceContextManagement = new ContextManagement(oDatabaseDocument);
-			sourceContextManagement.setElement(source);
-			if(includeSource) {
-				((ObjectNode)relation).replace(Relation.SOURCE_PROPERTY, sourceContextManagement.serializeSelfOnly());
 			}
 			
-			OVertex target = element.getVertex(ODirection.IN);
+			sourceEntityManagement = newSourceEntityManagement();
-			ContextManagement targetContextManagement = new ContextManagement(oDatabaseDocument);
+			sourceEntityManagement.setElementType(EntityTypeDefinition.NAME);
-			targetContextManagement.setElement(target);
+			sourceEntityManagement.setJsonNode(jsonNode.get(Relation.SOURCE_PROPERTY));
-			if(includeTarget) {
-				((ObjectNode)relation).replace(Relation.TARGET_PROPERTY, targetContextManagement.serializeSelfOnly());
-			}
-			
-		} catch(ResourceRegistryException e) {
-			logger.error("Unable to correctly serialize {}. {}", element, Utility.SHOULD_NOT_OCCUR_ERROR_MESSAGE, e);
-			throw e;
-		} catch(Exception e) {
-			logger.error("Unable to correctly serialize {}. {}", element, Utility.SHOULD_NOT_OCCUR_ERROR_MESSAGE, e);
-			throw new ResourceRegistryException(e);
 		}
 		
-		return relation;
+		if(targetEntityManagement == null) {
+			targetEntityManagement = newTargetEntityManagement();
+			
+			if(!jsonNode.has(Relation.TARGET_PROPERTY)) {
+				throw new ResourceRegistryException(
+						"Error while creating " + elementType + ". No target definition found");
+			}
+			
+			targetEntityManagement = newTargetEntityManagement();
+			targetEntityManagement.setElementType(EntityTypeDefinition.NAME);
+			targetEntityManagement.setJsonNode(jsonNode.get(Relation.TARGET_PROPERTY));
+			
+		}
+		
+		logger.trace("Creating {} beetween {} -> {}", elementType, getSourceEntityManagement().serialize(),
+				getTargetEntityManagement().serialize());
+		
+		OVertex source = (OVertex) getSourceEntityManagement().getElement();
+		OVertex target = (OVertex) getTargetEntityManagement().getElement();
+		
+		element = oDatabaseDocument.newEdge(source, target, elementType);
+		
+		ERManagement.updateProperties(oClass, element, jsonNode, ignoreKeys, ignoreStartWithKeys);
+		
+		return element;
 	}
 	
 	@Override
-	protected SEM newSourceEntityManagement() throws ResourceRegistryException {
+	public OEdge getElement() throws NotFoundException, ResourceRegistryException {
-		@SuppressWarnings("unchecked")
+		if(element == null) {
-		SEM sem = (SEM) new EntityTypeDefinitionManagement<SETD>(oDatabaseDocument);
+			try {
-		return sem;
+				element = retrieveElement();
+			} catch(NotFoundException e) {
+				throw e;
+			} catch(ResourceRegistryException e) {
+				throw e;
+			} catch(Exception e) {
+				throw new ResourceRegistryException(e);
+			}
+			
+		} else {
+			if(reload) {
+				element.reload();
+			}
+		}
+		return element;
 	}
 	
 	@Override
-	protected TEM newTargetEntityManagement() throws ResourceRegistryException {
+	public OEdge retrieveElement() throws NotFoundException, ResourceRegistryException {
-		@SuppressWarnings("unchecked")
+		try {
-		TEM tem = (TEM) new EntityTypeDefinitionManagement<TETD>(oDatabaseDocument);
+			if(getName() == null) {
-		return tem;
+				throw new NotFoundException("null name does not allow to retrieve the Element");
+			}
+			
+			String select = "SELECT FROM " + elementType + " WHERE " + RelationTypeDefinition.NAME_PROPERTY 
+					+ " = \"" + getName() + "\"";
+			
+			OResultSet resultSet = oDatabaseDocument.query(select, new HashMap<>());
+			
+			
+			if(resultSet == null || !resultSet.hasNext()) {
+				String error = String.format("No %s with name %s was found", elementType, getName());
+				logger.info(error);
+				throw new NotFoundException(error);
+			}
+			
+			OResult oResult = resultSet.next();
+			OEdge element = (OEdge) ERManagement.getElementFromOptional(oResult.getElement());
+			
+			logger.trace("{} with id {} is : {}", elementType, getName(), Utility.toJsonString(element, true));
+			
+			if(resultSet.hasNext()) {
+				throw new ResourceRegistryException("Found more than one " + elementType + " with name " + getName()
+						+ ". This is a fatal error please contact Admnistrator");
+			}
+			
+			return element;
+		} catch(NotFoundException e) {
+			throw getSpecificElementNotFoundException(e);
+		} catch(ResourceRegistryException e) {
+			throw e;
+		} catch(Exception e) {
+			throw new ResourceRegistryException(e);
+		}
+	}
+	
+	@Override
+	protected EntityTypeDefinitionManagement newSourceEntityManagement()
+			throws ResourceRegistryException {
+		return new EntityTypeDefinitionManagement(oDatabaseDocument);
+	}
+	
+	@Override
+	protected EntityTypeDefinitionManagement newTargetEntityManagement()
+			throws ResourceRegistryException {
+		return new EntityTypeDefinitionManagement(oDatabaseDocument);
+	}
+	
+	@Override
+	protected NotFoundException getSpecificElementNotFoundException(NotFoundException e) {
+		return new SchemaNotFoundException(e.getMessage(), e.getCause());
+	}
+	
+	@Override
+	protected AlreadyPresentException getSpecificERAlreadyPresentException(String message) {
+		return new SchemaAlreadyPresentException(message);
 	}
 	
 	@Override
@@ -131,4 +212,5 @@ public class RelationTypeDefinitionManagement<R extends RelationTypeDefinition<S
 	public String reallyGetAll(boolean polymorphic) throws ResourceRegistryException {
 		throw new UnsupportedOperationException();
 	}
+	
 }

src/main/java/org/gcube/informationsystem/resourceregistry/security/SecurityContext.java

@@ -367,6 +367,7 @@ public class SecurityContext {
 	
 	public void create() throws ResourceRegistryException {
 		ODatabaseDocument current = ContextUtility.getCurrentODatabaseDocumentFromThreadLocal();
+		
 		ODatabaseDocument adminDatabaseDocument = getAdminDatabaseDocument();
 		adminDatabaseDocument.activateOnCurrentThread();
 		
@@ -433,14 +434,8 @@ public class SecurityContext {
 		
 	}
 	
-	public void create(ODatabaseSession oDatabaseSession) {
+	public void create(ODatabaseDocument oDatabaseDocument) {
-		OSecurity oSecurity = getOSecurity(oDatabaseSession);
+		OSecurity oSecurity = getOSecurity(oDatabaseDocument);
-		createRolesAndUsers(oSecurity);
-		logger.trace("Security Context (roles and users) with UUID {} successfully created", context.toString());
-	}
-	
-	public void create(ODatabaseDocument orientGraph) {
-		OSecurity oSecurity = getOSecurity(orientGraph);
 		createRolesAndUsers(oSecurity);
 		logger.trace("Security Context (roles and users) with UUID {} successfully created", context.toString());
 	}

src/main/java/org/gcube/informationsystem/resourceregistry/utils/Utility.java

@@ -3,6 +3,7 @@ package org.gcube.informationsystem.resourceregistry.utils;
 import java.util.HashMap;
 import java.util.UUID;
 
+import org.gcube.informationsystem.base.reference.ER;
 import org.gcube.informationsystem.base.reference.properties.BaseProperty;
 import org.gcube.informationsystem.base.reference.properties.Header;
 import org.gcube.informationsystem.model.reference.entities.Entity;
@@ -96,7 +97,7 @@ public class Utility {
 		}
 		
 		// TODO Rewrite using Gremlin
-		String select = "SELECT FROM " + elementType + " WHERE " + Relation.HEADER_PROPERTY + "." + Header.UUID_PROPERTY
+		String select = "SELECT FROM " + elementType + " WHERE " + ER.HEADER_PROPERTY + "." + Header.UUID_PROPERTY
 				+ " = \"" + uuid.toString() + "\"";
 		
 		OResultSet resultSet = oDatabaseDocument.query(select, new HashMap<>());

src/test/java/org/gcube/informationsystem/resourceregistry/schema/SchemaManagementImplTest.java

@@ -5,12 +5,15 @@ package org.gcube.informationsystem.resourceregistry.schema;
 
 import java.util.List;
 
+import org.gcube.informationsystem.base.reference.AccessType;
 import org.gcube.informationsystem.base.reference.ISManageable;
 import org.gcube.informationsystem.base.reference.properties.BaseProperty;
 import org.gcube.informationsystem.base.reference.properties.Header;
+import org.gcube.informationsystem.base.reference.relations.BaseRelation;
 import org.gcube.informationsystem.model.reference.entities.Entity;
 import org.gcube.informationsystem.model.reference.entities.Facet;
 import org.gcube.informationsystem.model.reference.entities.Resource;
+import org.gcube.informationsystem.model.reference.properties.Encrypted;
 import org.gcube.informationsystem.model.reference.properties.Property;
 import org.gcube.informationsystem.model.reference.relations.ConsistsOf;
 import org.gcube.informationsystem.model.reference.relations.IsRelatedTo;
@@ -18,11 +21,23 @@ import org.gcube.informationsystem.model.reference.relations.Relation;
 import org.gcube.informationsystem.resourceregistry.instances.type.SchemaManagement;
 import org.gcube.informationsystem.resourceregistry.instances.type.SchemaManagementImpl;
 import org.gcube.informationsystem.types.TypeBinder;
+import org.gcube.informationsystem.types.impl.entities.EntityTypeDefinitionImpl;
+import org.gcube.informationsystem.types.impl.properties.PropertyTypeDefinitionImpl;
+import org.gcube.informationsystem.types.impl.relations.RelationTypeDefinitionImpl;
 import org.gcube.informationsystem.types.reference.TypeDefinition;
+import org.gcube.informationsystem.types.reference.entities.EntityTypeDefinition;
+import org.gcube.informationsystem.types.reference.properties.PropertyTypeDefinition;
+import org.gcube.informationsystem.types.reference.relations.RelationTypeDefinition;
 import org.gcube.informationsystem.utils.ISMapper;
+import org.gcube.resourcemanagement.model.reference.entities.facets.AccessPointFacet;
 import org.gcube.resourcemanagement.model.reference.entities.facets.ContactFacet;
 import org.gcube.resourcemanagement.model.reference.entities.resources.Actor;
+import org.gcube.resourcemanagement.model.reference.entities.resources.EService;
+import org.gcube.resourcemanagement.model.reference.entities.resources.RunningPlugin;
+import org.gcube.resourcemanagement.model.reference.properties.ValueSchema;
+import org.gcube.resourcemanagement.model.reference.relations.consistsof.HasVolatileMemory;
 import org.gcube.resourcemanagement.model.reference.relations.isrelatedto.Hosts;
+import org.gcube.resourcemanagement.model.reference.relations.isrelatedto.Uses;
 import org.junit.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -127,4 +142,88 @@ public class SchemaManagementImplTest {
 		logger.debug("{} list : {}", IsRelatedTo.NAME, list);
 
 	}
+	
+	@Test
+	public void createPropertyType() throws Exception {
+		PropertyTypeDefinition<ValueSchema> propertyTypeDefinition = new PropertyTypeDefinitionImpl<>(ValueSchema.class);
+		
+		SchemaManagement schemaManagement = new SchemaManagementImpl();
+		((SchemaManagementImpl) schemaManagement).setTypeName(ValueSchema.NAME);
+		String ret = schemaManagement.create(ISMapper.marshal(propertyTypeDefinition), AccessType.PROPERTY);
+		
+		logger.debug(ret);
+		
+	}
+	
+	@Test
+	public void createEncryptedType() throws Exception {
+		PropertyTypeDefinition<Encrypted> propertyTypeDefinition = new PropertyTypeDefinitionImpl<>(Encrypted.class);
+		
+		SchemaManagement schemaManagement = new SchemaManagementImpl();
+		((SchemaManagementImpl) schemaManagement).setTypeName(Encrypted.NAME);
+		String ret = schemaManagement.create(ISMapper.marshal(propertyTypeDefinition), AccessType.PROPERTY);
+		
+		logger.debug(ret);
+		
+	}
+	
+	@Test
+	public void createFacetType() throws Exception {
+		EntityTypeDefinition entityTypeDefinition = new EntityTypeDefinitionImpl(AccessPointFacet.class);
+		
+		SchemaManagement schemaManagement = new SchemaManagementImpl();
+		((SchemaManagementImpl) schemaManagement).setTypeName(AccessPointFacet.NAME);
+		String ret = schemaManagement.create(ISMapper.marshal(entityTypeDefinition), AccessType.FACET);
+		
+		logger.debug(ret);
+		
+	}
+	
+	@Test
+	public void createResourceType() throws Exception {
+		EntityTypeDefinition entityTypeDefinition = new EntityTypeDefinitionImpl(EService.class);
+		
+		SchemaManagement schemaManagement = new SchemaManagementImpl();
+		((SchemaManagementImpl) schemaManagement).setTypeName(EService.NAME);
+		String ret = schemaManagement.create(ISMapper.marshal(entityTypeDefinition), AccessType.RESOURCE);
+		
+		logger.debug(ret);
+		
+		entityTypeDefinition = new EntityTypeDefinitionImpl(RunningPlugin.class);
+		
+		schemaManagement = new SchemaManagementImpl();
+		((SchemaManagementImpl) schemaManagement).setTypeName(RunningPlugin.NAME);
+		ret = schemaManagement.create(ISMapper.marshal(entityTypeDefinition), AccessType.RESOURCE);
+		
+		logger.debug(ret);
+		
+	}
+	
+	@Test
+	public void createIsRelatedToType() throws Exception {
+		@SuppressWarnings("unchecked")
+		RelationTypeDefinition relationTypeDefinition = new RelationTypeDefinitionImpl((Class<? extends BaseRelation<?,?>>) Uses.class);
+		
+		SchemaManagement schemaManagement = new SchemaManagementImpl();
+		((SchemaManagementImpl) schemaManagement).setTypeName(Uses.NAME);
+		String ret = schemaManagement.create(ISMapper.marshal(relationTypeDefinition), AccessType.IS_RELATED_TO);
+		
+		logger.debug(ret);
+		
+	}
+	
+	@Test
+	public void createConsistsOfType() throws Exception {
+		@SuppressWarnings("unchecked")
+		RelationTypeDefinition relationTypeDefinition = new RelationTypeDefinitionImpl((Class<? extends BaseRelation<?,?>>) HasVolatileMemory.class);
+		
+		SchemaManagement schemaManagement = new SchemaManagementImpl();
+		((SchemaManagementImpl) schemaManagement).setTypeName(HasVolatileMemory.NAME);
+		String ret = schemaManagement.create(ISMapper.marshal(relationTypeDefinition), AccessType.CONSISTS_OF);
+		
+		logger.debug(ret);
+		
+	}
+	
+	
 }