| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| * |
| */ |
| |
| package org.apache.polygene.runtime.value; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.apache.polygene.api.association.AssociationDescriptor; |
| import org.apache.polygene.api.common.MetaInfo; |
| import org.apache.polygene.api.common.Visibility; |
| import org.apache.polygene.api.constraint.ValueConstraintViolation; |
| import org.apache.polygene.api.constraint.ConstraintViolationException; |
| import org.apache.polygene.api.entity.EntityDescriptor; |
| import org.apache.polygene.api.identity.HasIdentity; |
| import org.apache.polygene.api.identity.Identity; |
| import org.apache.polygene.api.structure.ModuleDescriptor; |
| import org.apache.polygene.api.structure.TypeLookup; |
| import org.apache.polygene.api.type.ValueCompositeType; |
| import org.apache.polygene.api.unitofwork.NoSuchEntityTypeException; |
| import org.apache.polygene.api.util.Classes; |
| import org.apache.polygene.api.value.ValueDescriptor; |
| import org.apache.polygene.runtime.composite.CompositeMethodsModel; |
| import org.apache.polygene.runtime.composite.CompositeModel; |
| import org.apache.polygene.runtime.composite.MixinModel; |
| import org.apache.polygene.runtime.composite.MixinsModel; |
| import org.apache.polygene.runtime.composite.UsesInstance; |
| import org.apache.polygene.runtime.injection.InjectionContext; |
| import org.apache.polygene.runtime.property.PropertyInstance; |
| import org.apache.polygene.runtime.unitofwork.UnitOfWorkInstance; |
| |
| /** |
| * Model for ValueComposites |
| */ |
| public final class ValueModel extends CompositeModel |
| implements ValueDescriptor |
| { |
| private ValueCompositeType valueType; |
| |
| public ValueModel( final ModuleDescriptor module, |
| final List<Class<?>> types, |
| final Visibility visibility, |
| final MetaInfo metaInfo, |
| final MixinsModel mixinsModel, |
| final ValueStateModel stateModel, |
| final CompositeMethodsModel compositeMethodsModel |
| ) |
| { |
| super( module, types, visibility, metaInfo, mixinsModel, stateModel, compositeMethodsModel ); |
| // TODO: When TypeLookup's lazy loading can be disabled during Model building, then uncomment the following line. |
| // checkAssociationVisibility(); |
| valueType = ValueCompositeType.of( this ); |
| } |
| |
| @Override |
| public ValueCompositeType valueType() |
| { |
| return valueType; |
| } |
| |
| @Override |
| public ValueStateModel state() |
| { |
| return (ValueStateModel) super.state(); |
| } |
| |
| // This method is ONLY called by ValueBuilders |
| void checkConstraints( ValueStateInstance state ) |
| throws ConstraintViolationException |
| { |
| List<ValueConstraintViolation> violations = new ArrayList<>(); |
| |
| stateModel.properties().forEach( |
| propertyModel -> |
| { |
| try |
| { |
| propertyModel.checkConstraints( state.propertyFor( propertyModel.accessor() ).get() ); |
| } |
| catch( ConstraintViolationException e ) |
| { |
| violations.addAll( e.constraintViolations() ); |
| } |
| } |
| ); |
| |
| // IF no UnitOfWork is active, then the Association checks shouldn't be done. |
| if( UnitOfWorkInstance.getCurrent().empty() ) |
| { |
| return; |
| } |
| ( (ValueStateModel) stateModel ).associations().forEach( |
| associationModel -> |
| { |
| try |
| { |
| associationModel.checkConstraints( state.associationFor( associationModel.accessor() ).get() ); |
| } |
| catch( ConstraintViolationException e ) |
| { |
| try |
| { |
| PropertyInstance<Identity> identityProperty = state.propertyFor( HasIdentity.IDENTITY_METHOD ); |
| e.setIdentity( identityProperty.get() ); |
| } |
| catch( IllegalArgumentException e1 ) |
| { |
| // ignore. Is not a HasIdentity instance |
| } |
| throw e; |
| } |
| } |
| ); |
| |
| ( (ValueStateModel) stateModel ).manyAssociations().forEach( |
| model -> |
| { |
| try |
| { |
| model.checkAssociationConstraints( state.manyAssociationFor( model.accessor() ) ); |
| } |
| catch( ConstraintViolationException e ) |
| { |
| try |
| { |
| PropertyInstance<Identity> identityProperty = state.propertyFor( HasIdentity.IDENTITY_METHOD ); |
| e.setIdentity( identityProperty.get() ); |
| } |
| catch( IllegalArgumentException e1 ) |
| { |
| // ignore. is not a HasIdentity value |
| } |
| throw e; |
| |
| } |
| } |
| ); |
| |
| ( (ValueStateModel) stateModel ).namedAssociations().forEach( |
| model -> |
| { |
| try |
| { |
| model.checkAssociationConstraints( state.namedAssociationFor( model.accessor() ) ); |
| } |
| catch( ConstraintViolationException e ) |
| { |
| PropertyInstance<Identity> propertyInstance = state.propertyFor( HasIdentity.IDENTITY_METHOD ); |
| throw e; |
| |
| } |
| } |
| ); |
| if( ! violations.isEmpty() ) |
| { |
| ConstraintViolationException exception = new ConstraintViolationException( violations ); |
| try |
| { |
| PropertyInstance<Identity> identityProperty = state.propertyFor( HasIdentity.IDENTITY_METHOD ); |
| exception.setIdentity(identityProperty.get()); |
| } |
| catch( IllegalArgumentException e ) |
| { |
| // ignore, there is no Identity. |
| } |
| throw exception; |
| } |
| } |
| |
| public ValueInstance newValueInstance( ValueStateInstance state ) |
| { |
| Object[] mixins = mixinsModel.newMixinHolder(); |
| |
| ValueInstance instance = new ValueInstance( this, mixins, state ); |
| |
| // Instantiate all mixins |
| int i = 0; |
| InjectionContext injectionContext = new InjectionContext( instance, UsesInstance.EMPTY_USES, state ); |
| for( MixinModel mixinModel : mixinsModel.mixinModels() ) |
| { |
| mixins[ i++ ] = mixinModel.newInstance( injectionContext ); |
| } |
| |
| // Return |
| return instance; |
| } |
| |
| private void checkAssociationVisibility() |
| { |
| // All referenced entity types in any Associations must be visible from the module of this ValueModel. |
| TypeLookup lookup = module.typeLookup(); |
| ValueStateModel stateModel = (ValueStateModel) this.stateModel; |
| stateModel.associations().forEach( model -> checkModel( lookup, model ) ); |
| stateModel.manyAssociations().forEach( model -> checkModel( lookup, model ) ); |
| stateModel.namedAssociations().forEach( model -> checkModel( lookup, model ) ); |
| } |
| |
| private void checkModel( TypeLookup lookup, AssociationDescriptor model ) |
| { |
| Class<?> rawClass = Classes.RAW_CLASS.apply( model.type() ); |
| List<EntityDescriptor> descriptors = lookup.lookupEntityModels( rawClass ); |
| if( descriptors.size() == 0 ) |
| { |
| throw new NoSuchEntityTypeException( rawClass.getName(), module.name(), lookup ); |
| } |
| } |
| } |