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900 lines
32 KiB
Java
900 lines
32 KiB
Java
package org.gcube.informationsystem.resourceregistry.instances.model.entities;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.UUID;
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import org.gcube.com.fasterxml.jackson.core.JsonProcessingException;
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import org.gcube.com.fasterxml.jackson.databind.JsonNode;
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import org.gcube.com.fasterxml.jackson.databind.ObjectMapper;
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import org.gcube.com.fasterxml.jackson.databind.node.ArrayNode;
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import org.gcube.com.fasterxml.jackson.databind.node.ObjectNode;
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import org.gcube.informationsystem.base.reference.AccessType;
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import org.gcube.informationsystem.context.reference.entities.Context;
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import org.gcube.informationsystem.model.reference.entities.Entity;
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import org.gcube.informationsystem.model.reference.entities.Facet;
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import org.gcube.informationsystem.model.reference.entities.Resource;
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import org.gcube.informationsystem.model.reference.properties.Header;
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import org.gcube.informationsystem.model.reference.relations.ConsistsOf;
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import org.gcube.informationsystem.model.reference.relations.Relation;
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import org.gcube.informationsystem.resourceregistry.api.contexts.ContextCache;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.AvailableInAnotherContextException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.context.ContextException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.entity.EntityAlreadyPresentException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.query.InvalidQueryException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.schema.SchemaViolationException;
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import org.gcube.informationsystem.resourceregistry.contexts.ContextUtility;
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import org.gcube.informationsystem.resourceregistry.contexts.security.SecurityContext;
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import org.gcube.informationsystem.resourceregistry.contexts.security.SecurityContext.PermissionMode;
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import org.gcube.informationsystem.resourceregistry.instances.base.ElementManagement;
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import org.gcube.informationsystem.resourceregistry.instances.base.ElementManagementUtility;
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import org.gcube.informationsystem.resourceregistry.instances.base.entities.EntityElementManagement;
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import org.gcube.informationsystem.resourceregistry.instances.model.ERManagement;
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import org.gcube.informationsystem.resourceregistry.instances.model.Operation;
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import org.gcube.informationsystem.resourceregistry.instances.model.relations.RelationManagement;
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import org.gcube.informationsystem.resourceregistry.types.TypesCache;
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import org.gcube.informationsystem.resourceregistry.utils.HeaderUtility;
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import org.gcube.informationsystem.resourceregistry.utils.Utility;
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import org.gcube.informationsystem.types.reference.entities.EntityType;
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import com.orientechnologies.orient.core.db.document.ODatabaseDocument;
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import com.orientechnologies.orient.core.id.ORID;
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import com.orientechnologies.orient.core.metadata.schema.OClass;
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import com.orientechnologies.orient.core.record.ODirection;
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import com.orientechnologies.orient.core.record.OEdge;
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import com.orientechnologies.orient.core.record.OElement;
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import com.orientechnologies.orient.core.record.OVertex;
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import com.orientechnologies.orient.core.record.impl.ODocument;
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import com.orientechnologies.orient.core.sql.executor.OResult;
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import com.orientechnologies.orient.core.sql.executor.OResultSet;
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/**
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* @author Luca Frosini (ISTI - CNR)
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*/
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public abstract class EntityManagement<E extends Entity, ET extends EntityType> extends EntityElementManagement<E, ET> implements ERManagement {
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/**
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* The source context of an addToContex
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*/
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protected SecurityContext sourceSecurityContext;
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/**
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* The target context of an addToContex/RemoveFromContext
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*/
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protected SecurityContext targetSecurityContext;
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/**
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* By the default the system honour the propagation constraints
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* so this variable is initialised as true.
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*
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* To revert a previous operation or for particular a maintenance
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* we could request to the service do not honour the propagation
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* constraints but under certain conditions and with some limitation
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* only.
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* These limitation are required to keep the system in a consistent
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* state.
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* In fact, this directive is only valid for Resources and IsRelatedTo
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* relations. We need to take in account that to add an
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* IsRelatedTo to a context always the source and target
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* Resources must be in such a Context.
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* Please also take into account that adding a Resource
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* to a context always imply to honour the propagation constraints
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* of ConsistsOf relations. In fact, a resource must be characterised
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* least by one facet in any context it belongs. Giving that we
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* cannot made assumption on which facets must be used.
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* A way could be to consider just the facets are mandatory for such a
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* Resource Type, but the type could not have mandatory facets
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* (even every Resource Type in the gCube Model has one mandatory facet).
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* As counterpart, when a Resource is removed from a Context all the facets
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* charactering it must be removed.
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*
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* This option can also be used in conjunction with
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* {@link ElementManagement#dryRun}=true.
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* This allow to simulate a sharing operation which requires
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* do not honour the propagation constraints.
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*/
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protected boolean honourPropagationConstraintsInContextSharing;
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@Override
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public void setSourceSecurityContext(SecurityContext sourceSecurityContext) {
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this.sourceSecurityContext = sourceSecurityContext;
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}
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@Override
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public SecurityContext getSourceSecurityContext() {
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return sourceSecurityContext;
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}
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@Override
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public void setTargetSecurityContext(SecurityContext targetSecurityContext) {
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this.targetSecurityContext = targetSecurityContext;
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}
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@Override
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public SecurityContext getTargetSecurityContext() {
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return sourceSecurityContext;
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}
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@Override
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public boolean isHonourPropagationConstraintsInContextSharing() {
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return honourPropagationConstraintsInContextSharing;
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}
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@Override
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public void setHonourPropagationConstraintsInContextSharing(boolean honourPropagationConstraintsInContextSharing) {
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this.honourPropagationConstraintsInContextSharing = honourPropagationConstraintsInContextSharing;
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}
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/**
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* Provide a cache edge-internal-id -> RelationManagement
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* this avoid to recreate the relationManagement of already visited edges
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*/
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protected Map<String,RelationManagement<?, ?>> relationManagements;
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/* Indicate that AddToContext skipped the isntance because it was not the source context */
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protected boolean skipped;
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protected EntityManagement(AccessType accessType) {
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super(accessType);
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this.ignoreKeys.add(Entity.HEADER_PROPERTY);
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this.ignoreStartWithKeys.add(IN_PREFIX.toLowerCase());
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this.ignoreStartWithKeys.add(OUT_PREFIX.toLowerCase());
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this.ignoreStartWithKeys.add(IN_PREFIX.toUpperCase());
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this.ignoreStartWithKeys.add(OUT_PREFIX.toUpperCase());
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this.relationManagements = new HashMap<>();
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/*
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* By the default the system honour the propagation constraints
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* so this variable is initialised as true.
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*/
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this.honourPropagationConstraintsInContextSharing = true;
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this.skipped = false;
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}
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@Override
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public OVertex getElement() throws NotFoundException, AvailableInAnotherContextException, ResourceRegistryException {
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try {
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element = super.getElement();
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} catch(NotFoundException e) {
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try {
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retrieveElementFromAnyContext();
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throw getSpecificAvailableInAnotherContextException(typeName == null ? accessType.getName()
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: typeName + " with UUID " + uuid + " is available in another "
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+ Context.class.getSimpleName());
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} catch(AvailableInAnotherContextException e1) {
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throw e1;
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} catch(Exception e1) {
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throw e;
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}
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} catch(ResourceRegistryException e) {
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throw e;
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} catch(Exception e) {
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throw new ResourceRegistryException(e);
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}
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return element;
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}
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/*
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* It works perfectly in case of any kind of update. In case of use from create
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* the cache does not work by using the ID because until commit the edge has a
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* fake id starting with - (minus) sign. This not imply any collateral effect
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* but a better solution is a desiderata.
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*/
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protected RelationManagement<?,?> getRelationManagement(OEdge edge) throws ResourceRegistryException {
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String id = edge.getIdentity().toString();
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RelationManagement<?,?> relationManagement = relationManagements.get(id);
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if(relationManagement == null) {
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relationManagement = ElementManagementUtility.getRelationManagement(getWorkingContext(), oDatabaseDocument, edge);
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relationManagements.put(id, relationManagement);
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}
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return relationManagement;
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}
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public void addToRelationManagements(RelationManagement<?,?> relationManagement)
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throws ResourceRegistryException {
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OElement elem = relationManagement.getElement();
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String id = elem.getIdentity().toString();
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if(relationManagements.get(id) != null && relationManagements.get(id) != relationManagement) {
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StringBuilder errorMessage = new StringBuilder();
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errorMessage.append("Two different instance of ");
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errorMessage.append(relationManagement.getClass().getSimpleName());
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errorMessage.append(" point to the same ");
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errorMessage.append(elem.getClass().getSimpleName());
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errorMessage.append(". ");
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errorMessage.append(Utility.SHOULD_NOT_OCCUR_ERROR_MESSAGE);
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throw new ResourceRegistryException(errorMessage.toString());
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}
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relationManagements.put(id, relationManagement);
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}
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protected static JsonNode addRelation(JsonNode sourceResource, JsonNode relation, String arrayKey)
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throws ResourceRegistryException {
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ObjectMapper objectMapper = new ObjectMapper();
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ArrayNode relationArray = objectMapper.createArrayNode();
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try {
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if(sourceResource.has(arrayKey)) {
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relationArray = (ArrayNode) sourceResource.get(arrayKey);
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}
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relationArray.add(relation);
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((ObjectNode) sourceResource).replace(arrayKey, relationArray);
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} catch(Exception e) {
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throw new ResourceRegistryException(e);
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}
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return sourceResource;
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}
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@Override
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protected OVertex createVertex() throws EntityAlreadyPresentException, ResourceRegistryException {
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logger.trace("Going to create {} for {} ({}) using {}", OVertex.class.getSimpleName(), accessType.getName(),
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typeName, jsonNode);
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try {
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if(oClass.isAbstract()) {
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String error = String.format(
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"Trying to create an instance of %s of type %s which is abstract. The operation will be aborted.",
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accessType.getName(), typeName);
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throw new SchemaViolationException(error);
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}
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OVertex vertexEntity = oDatabaseDocument.newVertex(typeName);
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try {
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if(uuid != null) {
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OVertex v = getElement();
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if(v != null) {
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String error = String.format("A %s with UUID %s already exist", typeName, uuid.toString());
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throw getSpecificAlreadyPresentException(error);
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}
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}
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} catch(NotFoundException e) {
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try {
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OElement el = ElementManagementUtility.getAnyElementByUUID(uuid);
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String error = String.format("UUID %s is already used by another %s. This is not allowed.",
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uuid.toString(), (el instanceof OVertex) ? Entity.NAME : Relation.NAME);
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throw getSpecificAvailableInAnotherContextException(error);
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} catch(NotFoundException e1) {
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// OK the UUID is not already used.
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}
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} catch(AvailableInAnotherContextException e) {
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throw e;
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}
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this.element = vertexEntity;
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if(accessType == AccessType.RESOURCE) {
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// Facet and relation are created in calling method
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} else {
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updateProperties(oClass, element, jsonNode, ignoreKeys, ignoreStartWithKeys);
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}
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logger.debug("Created {} is {}", OVertex.class.getSimpleName(),
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Utility.toJsonString((OVertex) element, true));
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return element;
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} catch(ResourceRegistryException e) {
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throw e;
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} catch(Exception e) {
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logger.trace("Error while creating {} for {} ({}) using {}", OVertex.class.getSimpleName(),
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accessType.getName(), typeName, jsonNode, e);
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throw new ResourceRegistryException("Error Creating " + typeName + " with " + jsonNode, e.getCause());
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}
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}
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protected void reallyAddToContext()
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throws ContextException, ResourceRegistryException {
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if(!sourceSecurityContext.isElementInContext(getElement())) {
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// The element in not in the source security context. It will be skipped
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skipped = true;
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return;
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}
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targetSecurityContext.addElement(getElement(), oDatabaseDocument);
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/*
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* DO NOT UNCOMMENT
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* // affectedInstances.put(uuid, serializeSelfOnly());
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* the instance is added in internalAddToContext() function after
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* the update of Header metadata i.e. modifiedBy, lastUpdateTime
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*/
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if(honourPropagationConstraintsInContextSharing) {
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Iterable<OEdge> edges = getElement().getEdges(ODirection.OUT);
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for(OEdge edge : edges) {
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RelationManagement<?,?> relationManagement = getRelationManagement(edge);
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relationManagement.setDryRun(dryRun);
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relationManagement.setHonourPropagationConstraintsInContextSharing(honourPropagationConstraintsInContextSharing);
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relationManagement.setSourceSecurityContext(sourceSecurityContext);
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relationManagement.setTargetSecurityContext(targetSecurityContext);
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relationManagement.internalAddToContext();
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affectedInstances.putAll(relationManagement.getAffectedInstances());
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}
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}
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}
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@Override
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public void internalAddToContext()
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throws ContextException, ResourceRegistryException {
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try {
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setOperation(Operation.ADD_TO_CONTEXT);
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reallyAddToContext();
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if(!skipped) {
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HeaderUtility.updateModifiedByAndLastUpdate(element);
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element.save();
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affectedInstances.put(uuid, serializeAsAffectedInstance());
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sanityCheck();
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}
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} catch(ResourceRegistryException e) {
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throw e;
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} catch(Exception e) {
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throw new ResourceRegistryException(
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"Error Adding " + typeName + " to " + targetSecurityContext.toString(), e.getCause());
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}
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}
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@Override
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public void addToContext(UUID contextUUID) throws SchemaViolationException, NotFoundException, ContextException, ResourceRegistryException {
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String contextFullName = ContextCache.getInstance().getContextFullNameByUUID(contextUUID);
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logger.info("Going to add {} with UUID {} to Context with UUID {} (i.e. {})", accessType.getName(), uuid, contextUUID, contextFullName);
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ODatabaseDocument current = ContextUtility.getCurrentODatabaseDocumentFromThreadLocal();
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try {
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workingContext = ContextUtility.getAdminSecurityContext();
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oDatabaseDocument = workingContext.getDatabaseDocument(PermissionMode.WRITER);
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oDatabaseDocument.begin();
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setAsEntryPoint();
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sourceSecurityContext = ContextUtility.getCurrentSecurityContext();
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targetSecurityContext = ContextUtility.getInstance().getSecurityContextByUUID(contextUUID);
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internalAddToContext();
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if(!dryRun) {
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oDatabaseDocument.commit();
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}else {
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oDatabaseDocument.rollback();
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}
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logger.info("{} with UUID {} successfully added to Context with UUID {} (i.e. {})", typeName, uuid, contextUUID, contextFullName);
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} catch(ResourceRegistryException e) {
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logger.error("Unable to add {} with UUID {} to Context with UUID {} (i.e. {}) - Reason is {}", typeName, uuid, contextUUID, contextFullName, e.getMessage());
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if(oDatabaseDocument != null) {
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oDatabaseDocument.rollback();
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}
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throw e;
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} catch(Exception e) {
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logger.error("Unable to add {} with UUID {} to Context with UUID {} (i.e. {})", typeName, uuid, contextUUID, contextFullName, e);
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if(oDatabaseDocument != null) {
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oDatabaseDocument.rollback();
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}
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throw new ContextException(e);
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} finally {
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if(oDatabaseDocument != null) {
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oDatabaseDocument.close();
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}
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if(current!=null) {
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current.activateOnCurrentThread();
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}
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}
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}
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@Override
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public void internalRemoveFromContext()
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throws ContextException, ResourceRegistryException {
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try {
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setOperation(Operation.REMOVE_FROM_CONTEXT);
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reallyRemoveFromContext();
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HeaderUtility.updateModifiedByAndLastUpdate(element);
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element.save();
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affectedInstances.put(uuid, serializeAsAffectedInstance());
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sanityCheck();
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} catch(ResourceRegistryException e) {
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throw e;
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} catch(Exception e) {
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throw new ResourceRegistryException(
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"Error Removing " + typeName + " from " + targetSecurityContext.toString(), e.getCause());
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}
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}
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protected void reallyRemoveFromContext()
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throws ContextException, ResourceRegistryException {
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if(!targetSecurityContext.isElementInContext(getElement())) {
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// The element in not in the source security context. It will be skipped
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return;
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}
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if(honourPropagationConstraintsInContextSharing) {
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Iterable<OEdge> edges = getElement().getEdges(ODirection.OUT);
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for(OEdge edge : edges) {
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RelationManagement<?,?> relationManagement = getRelationManagement(edge);
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relationManagement.setDryRun(dryRun);
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relationManagement.setHonourPropagationConstraintsInContextSharing(honourPropagationConstraintsInContextSharing);
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// Not needed relationManagement.setSourceSecurityContext(sourceSecurityContext);
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relationManagement.setTargetSecurityContext(targetSecurityContext);
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relationManagement.internalRemoveFromContext();
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addToRelationManagements(relationManagement);
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affectedInstances.putAll(relationManagement.getAffectedInstances());
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}
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}
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targetSecurityContext.removeElement(getElement(), oDatabaseDocument);
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/*
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* DO NOT UNCOMMENT
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* the instance is added internalAddToContext() function after
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* the update of Header metadata i.e. modifiedBy, lastUpdateTime
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* affectedInstances.put(uuid, serializeSelfOnly());
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*/
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}
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@Override
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public void removeFromContext(UUID contextUUID)
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throws SchemaViolationException, NotFoundException, ContextException, ResourceRegistryException {
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logger.debug("Going to remove {} with UUID {} from Context with UUID {}", typeName, uuid, contextUUID);
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ODatabaseDocument current = ContextUtility.getCurrentODatabaseDocumentFromThreadLocal();
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try {
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workingContext = ContextUtility.getAdminSecurityContext();
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oDatabaseDocument = workingContext.getDatabaseDocument(PermissionMode.WRITER);
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oDatabaseDocument.begin();
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setAsEntryPoint();
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// Not needed sourceSecurityContext = ContextUtility.getCurrentSecurityContext();
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targetSecurityContext = ContextUtility.getInstance().getSecurityContextByUUID(contextUUID);
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internalRemoveFromContext();
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if(!dryRun) {
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oDatabaseDocument.commit();
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}else {
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oDatabaseDocument.rollback();
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}
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logger.info("{} with UUID {} successfully removed from Context with UUID {}", typeName, uuid, contextUUID);
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} catch(ResourceRegistryException e) {
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logger.error("Unable to remove {} with UUID {} from Context with UUID {}", typeName, uuid, contextUUID);
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if(oDatabaseDocument != null) {
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oDatabaseDocument.rollback();
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}
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throw e;
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} catch(Exception e) {
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logger.error("Unable to remove {} with UUID {} from Context with UUID {}", typeName, uuid, contextUUID,
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e);
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if(oDatabaseDocument != null) {
|
|
oDatabaseDocument.rollback();
|
|
}
|
|
throw new ContextException(e);
|
|
} finally {
|
|
if(oDatabaseDocument != null) {
|
|
oDatabaseDocument.close();
|
|
}
|
|
|
|
if(current!=null) {
|
|
current.activateOnCurrentThread();
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public String reallyGetAll(boolean polymorphic) throws ResourceRegistryException {
|
|
ObjectMapper objectMapper = new ObjectMapper();
|
|
ArrayNode arrayNode = objectMapper.createArrayNode();
|
|
|
|
Iterable<ODocument> iterable = oDatabaseDocument.browseClass(typeName, polymorphic);
|
|
for(ODocument vertex : iterable) {
|
|
EntityManagement<?,?> entityManagement = ElementManagementUtility.getEntityManagement(getWorkingContext(),
|
|
oDatabaseDocument, (OVertex) vertex);
|
|
try {
|
|
JsonNode jsonNode = entityManagement.serializeAsJsonNode();
|
|
arrayNode.add(jsonNode);
|
|
} catch(ResourceRegistryException e) {
|
|
logger.error("Unable to correctly serialize {}. It will be excluded from results. {}",
|
|
vertex.toString(), Utility.SHOULD_NOT_OCCUR_ERROR_MESSAGE);
|
|
}
|
|
}
|
|
try {
|
|
return objectMapper.writeValueAsString(arrayNode);
|
|
} catch(JsonProcessingException e) {
|
|
throw new ResourceRegistryException(e);
|
|
}
|
|
}
|
|
|
|
public boolean propertyMatchRequestedValue(OVertex v, String key, String requestedValue, Object instanceValue) throws SchemaException, ResourceRegistryException {
|
|
return requestedValue.compareTo(instanceValue.toString())==0;
|
|
|
|
|
|
/*
|
|
OClass oClass = ElementManagement.getOClass(v);
|
|
OProperty oProperty = oClass.getProperty(key);
|
|
if(oProperty==null){
|
|
// It is an additional property
|
|
return requestedValue.compareTo(instanceValue.toString())==0;
|
|
}
|
|
OType oType = oProperty.getType();
|
|
switch (oType) {
|
|
case BOOLEAN:
|
|
Boolean requested = Boolean.valueOf(requestedValue.toLowerCase());
|
|
return requested == (Boolean) instanceValue;
|
|
|
|
case STRING:
|
|
return requestedValue.compareTo((String) instanceValue)==0;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
*/
|
|
}
|
|
|
|
|
|
/*
|
|
public String reallyQuery(String relationType, String referenceType, UUID referenceUUID, ODirection direction,
|
|
boolean polymorphic, Map<String,String> constraint, boolean includeRelationInResult) throws ResourceRegistryException {
|
|
*/
|
|
public String reallyQuery(String relationType, String referenceType, UUID referenceUUID, ODirection direction,
|
|
boolean polymorphic, Map<String,String> constraint) throws ResourceRegistryException {
|
|
ObjectMapper objectMapper = new ObjectMapper();
|
|
ArrayNode arrayNode = objectMapper.createArrayNode();
|
|
|
|
Iterable<?> references = null;
|
|
|
|
if(referenceUUID != null) {
|
|
OElement element = null;
|
|
try {
|
|
element = ElementManagementUtility.getAnyElementByUUID(oDatabaseDocument, referenceUUID);
|
|
}catch (ResourceRegistryException e) {
|
|
String error = String.format("No instace with UUID %s exists", referenceUUID.toString());
|
|
throw new InvalidQueryException(error);
|
|
}
|
|
|
|
if(element instanceof OVertex) {
|
|
EntityManagement<?, ?> entityManagement = ElementManagementUtility.getEntityManagement(getWorkingContext(),
|
|
oDatabaseDocument, (OVertex) element);
|
|
|
|
String elementType = entityManagement.getTypeName();
|
|
if(elementType.compareTo(referenceType) != 0) {
|
|
if(polymorphic && getOClass().isSubClassOf(referenceType)) {
|
|
// OK
|
|
} else {
|
|
String error = String.format("Referenced instace with UUID %s is not a %s", referenceUUID, referenceType);
|
|
throw new InvalidQueryException(error);
|
|
}
|
|
}
|
|
|
|
List<OVertex> vertexes = new ArrayList<>();
|
|
vertexes.add((OVertex) element);
|
|
references = vertexes;
|
|
|
|
} else {
|
|
String error = String.format("Referenced instace with UUID %s is not a %s", referenceUUID, referenceType);
|
|
throw new InvalidQueryException(error);
|
|
}
|
|
|
|
} else {
|
|
references = oDatabaseDocument.browseClass(referenceType, polymorphic);
|
|
}
|
|
|
|
Set<ORID> analysed = new HashSet<>();
|
|
|
|
for(Object r : references) {
|
|
OVertex v = (OVertex) r;
|
|
|
|
boolean skip = false;
|
|
// checking if the constraints are satisfied
|
|
for(String key : constraint.keySet()) {
|
|
String value = constraint.get(key);
|
|
Object o = v.getProperty(key);
|
|
if(value==null) {
|
|
if(o==null) {
|
|
//ok
|
|
}else {
|
|
skip = true;
|
|
break;
|
|
}
|
|
}else {
|
|
if(o==null) {
|
|
// The vertex has not a required property to be tested
|
|
// or the property is null
|
|
skip = true;
|
|
break;
|
|
}else {
|
|
skip = !propertyMatchRequestedValue(v, key, value, o);
|
|
if(skip) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if(skip) {
|
|
continue;
|
|
}
|
|
|
|
|
|
List<ODirection> directions = new ArrayList<>();
|
|
if(direction==ODirection.BOTH) {
|
|
directions.add(ODirection.IN);
|
|
directions.add(ODirection.OUT);
|
|
}else {
|
|
directions.add(direction);
|
|
}
|
|
|
|
for(ODirection d : directions) {
|
|
|
|
Iterable<OEdge> edges = v.getEdges(d.opposite(), relationType);
|
|
for(OEdge edge : edges) {
|
|
OVertex vertex = edge.getVertex(d);
|
|
|
|
ORID vertexORID = vertex.getIdentity();
|
|
|
|
if(analysed.contains(vertexORID)) {
|
|
continue;
|
|
}
|
|
analysed.add(vertexORID);
|
|
|
|
if(v.getIdentity().compareTo(vertexORID) == 0) {
|
|
continue;
|
|
}
|
|
|
|
OClass oClass = ElementManagementUtility.getOClass(vertex);
|
|
|
|
/*
|
|
* If the requested type (i.e. elementType)
|
|
* differs form the resulting type (i.e. oClass.getName())
|
|
* we need to evaluate if polymorphism is requested and
|
|
* if the resulting type is a subclass of the requested type
|
|
*
|
|
*/
|
|
if(oClass.getName().compareTo(typeName)!=0) {
|
|
if(polymorphic && oClass.isSubClassOf(typeName)) {
|
|
// OK
|
|
} else {
|
|
// excluding from results
|
|
continue;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
EntityManagement<?,?> entityManagement = ElementManagementUtility.getEntityManagement(getWorkingContext(),
|
|
oDatabaseDocument, vertex);
|
|
|
|
try {
|
|
if(referenceUUID!=null && entityManagement.getUUID().compareTo(referenceUUID) == 0) {
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
JsonNode jsonNode;
|
|
if(includeRelationInResult) {
|
|
RelationManagement<?,?> relationManagement = ElementManagementUtility.getRelationManagement(getWorkingContext(),
|
|
oDatabaseDocument, edge);
|
|
jsonNode = relationManagement.serializeAsJsonNode();
|
|
}else {
|
|
jsonNode = entityManagement.serializeAsJsonNode();
|
|
}
|
|
*/
|
|
JsonNode node = entityManagement.serializeAsJsonNode();
|
|
|
|
arrayNode.add(node);
|
|
} catch(ResourceRegistryException e) {
|
|
logger.error("Unable to correctly serialize {}. It will be excluded from results. {}",
|
|
vertex.toString(), Utility.SHOULD_NOT_OCCUR_ERROR_MESSAGE);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
try {
|
|
return objectMapper.writeValueAsString(arrayNode);
|
|
} catch(JsonProcessingException e) {
|
|
throw new ResourceRegistryException(e);
|
|
}
|
|
}
|
|
|
|
public String reallyQueryTraversal(String relationType, String referenceType, UUID referenceUUID,
|
|
ODirection direction, boolean polymorphic, Map<String,String> constraint) throws ResourceRegistryException {
|
|
ObjectMapper objectMapper = new ObjectMapper();
|
|
ArrayNode arrayNode = objectMapper.createArrayNode();
|
|
|
|
if(referenceUUID != null) {
|
|
constraint.put(Entity.HEADER_PROPERTY + "." + Header.UUID_PROPERTY, referenceUUID.toString());
|
|
}
|
|
|
|
// TODO check types
|
|
|
|
/*
|
|
* SELECT FROM (TRAVERSE inE('isIdentifiedBy'), outV('EService') FROM (SELECT
|
|
* FROM SoftwareFacet WHERE group='VREManagement' AND name='SmartExecutor'))
|
|
*
|
|
* WHERE @class='EService' // Only is not polymorphic
|
|
*/
|
|
|
|
StringBuilder selectStringBuilder = new StringBuilder("SELECT FROM (TRAVERSE ");
|
|
selectStringBuilder.append(direction.name().toLowerCase());
|
|
selectStringBuilder.append("E('");
|
|
selectStringBuilder.append(relationType);
|
|
selectStringBuilder.append("'), ");
|
|
selectStringBuilder.append(direction.opposite().name().toLowerCase());
|
|
selectStringBuilder.append("V('");
|
|
selectStringBuilder.append(typeName);
|
|
selectStringBuilder.append("') FROM (SELECT FROM ");
|
|
selectStringBuilder.append(referenceType);
|
|
boolean first = true;
|
|
for(String key : constraint.keySet()) {
|
|
if(first) {
|
|
selectStringBuilder.append(" WHERE ");
|
|
first = false;
|
|
} else {
|
|
selectStringBuilder.append(" AND ");
|
|
}
|
|
selectStringBuilder.append(key);
|
|
selectStringBuilder.append("=");
|
|
String value = constraint.get(key).trim();
|
|
selectStringBuilder.append("'");
|
|
selectStringBuilder.append(value);
|
|
selectStringBuilder.append("'");
|
|
}
|
|
selectStringBuilder.append(" ))");
|
|
|
|
if(!polymorphic) {
|
|
selectStringBuilder.append(" WHERE @class='");
|
|
selectStringBuilder.append(typeName);
|
|
selectStringBuilder.append("'");
|
|
}
|
|
|
|
String select = selectStringBuilder.toString();
|
|
logger.trace(select);
|
|
|
|
OResultSet resultSet = oDatabaseDocument.command(select,new HashMap<>());
|
|
|
|
while(resultSet.hasNext()) {
|
|
OResult oResult = resultSet.next();
|
|
OElement element = ElementManagementUtility.getElementFromOptional(oResult.getElement());
|
|
|
|
if(polymorphic) {
|
|
OClass oClass = null;
|
|
try {
|
|
if(element instanceof OEdge) {
|
|
continue;
|
|
}
|
|
oClass = ElementManagementUtility.getOClass(element);
|
|
} catch(Exception e) {
|
|
String error = String.format("Unable to detect type of %s. %s", element.toString(),
|
|
Utility.SHOULD_NOT_OCCUR_ERROR_MESSAGE);
|
|
logger.error(error, e);
|
|
throw new ResourceRegistryException(error);
|
|
}
|
|
|
|
if(oClass.isSubClassOf(typeName)) {
|
|
continue;
|
|
}
|
|
|
|
}
|
|
|
|
OVertex vertex = (OVertex) element;
|
|
|
|
EntityManagement<?,?> entityManagement = ElementManagementUtility.getEntityManagement(getWorkingContext(),
|
|
oDatabaseDocument, vertex);
|
|
try {
|
|
if(constraint.containsKey(Entity.HEADER_PROPERTY + "." + Header.UUID_PROPERTY)) {
|
|
String uuid = constraint.get(Entity.HEADER_PROPERTY + "." + Header.UUID_PROPERTY);
|
|
if(entityManagement.getUUID().compareTo(UUID.fromString(uuid)) == 0) {
|
|
continue;
|
|
}
|
|
}
|
|
JsonNode jsonNode = entityManagement.serializeAsJsonNode();
|
|
arrayNode.add(jsonNode);
|
|
} catch(ResourceRegistryException e) {
|
|
logger.error("Unable to correctly serialize {}. It will be excluded from results. {}",
|
|
vertex.toString(), Utility.SHOULD_NOT_OCCUR_ERROR_MESSAGE);
|
|
}
|
|
}
|
|
|
|
try {
|
|
return objectMapper.writeValueAsString(arrayNode);
|
|
} catch(JsonProcessingException e) {
|
|
throw new ResourceRegistryException(e);
|
|
}
|
|
}
|
|
|
|
/*
|
|
public String query(String relationType, String referenceType, UUID referenceUUID, ODirection direction,
|
|
boolean polymorphic, Map<String,String> constraint, boolean includeRelationInResult) throws ResourceRegistryException {
|
|
*/
|
|
public String query(String relationType, String referenceType, UUID referenceUUID, ODirection direction,
|
|
boolean polymorphic, Map<String,String> constraint) throws ResourceRegistryException {
|
|
|
|
ODatabaseDocument current = ContextUtility.getCurrentODatabaseDocumentFromThreadLocal();
|
|
try {
|
|
workingContext = ContextUtility.getAdminSecurityContext();
|
|
oDatabaseDocument = workingContext.getDatabaseDocument(PermissionMode.READER);
|
|
|
|
setAsEntryPoint();
|
|
setOperation(Operation.QUERY);
|
|
|
|
TypesCache typesCache = TypesCache.getInstance();
|
|
AccessType relationAccessType = typesCache.getCachedType(relationType).getAccessType();
|
|
if(relationAccessType != AccessType.IS_RELATED_TO && relationAccessType != AccessType.CONSISTS_OF) {
|
|
String error = String.format("%s must be a relation type", relationType);
|
|
throw new ResourceRegistryException(error);
|
|
}
|
|
|
|
AccessType referenceAccessType = typesCache.getCachedType(referenceType).getAccessType();
|
|
if(referenceAccessType != AccessType.RESOURCE && referenceAccessType != AccessType.FACET) {
|
|
String error = String.format("%s must be a en entity type", referenceType);
|
|
throw new ResourceRegistryException(error);
|
|
}
|
|
|
|
if(constraint == null) {
|
|
constraint = new HashMap<>();
|
|
}
|
|
|
|
switch(accessType) {
|
|
case RESOURCE:
|
|
|
|
if(relationAccessType == AccessType.CONSISTS_OF) {
|
|
|
|
if(direction != ODirection.OUT) {
|
|
String error = String.format("%s can only goes %s from %s.", relationType,
|
|
ODirection.OUT.name(), typeName);
|
|
throw new InvalidQueryException(error);
|
|
} else {
|
|
if(referenceAccessType != AccessType.FACET) {
|
|
String error = String.format("%s can only has as target a %s. Provided instead %s : %s",
|
|
relationType, Facet.NAME, referenceAccessType, referenceType);
|
|
throw new InvalidQueryException(error);
|
|
}
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
case FACET:
|
|
if(relationAccessType != AccessType.CONSISTS_OF || direction != ODirection.IN
|
|
|| referenceAccessType != AccessType.RESOURCE) {
|
|
String error = String.format("%s can only has %s %s from a %s.", typeName,
|
|
ODirection.IN.name(), ConsistsOf.NAME, Resource.NAME);
|
|
throw new InvalidQueryException(error);
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// return reallyQuery(relationType, referenceType, referenceUUID, direction, polymorphic, constraint, includeRelationInResult);
|
|
return reallyQuery(relationType, referenceType, referenceUUID, direction, polymorphic, constraint);
|
|
|
|
} catch(ResourceRegistryException e) {
|
|
throw e;
|
|
} catch(Exception e) {
|
|
throw new ResourceRegistryException(e);
|
|
} finally {
|
|
if(oDatabaseDocument != null) {
|
|
oDatabaseDocument.close();
|
|
}
|
|
if(current!=null) {
|
|
current.activateOnCurrentThread();
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|