# ModuleModel.java

    /*
     * Copyright (c) 2008-2011, Rickard Öberg. All Rights Reserved.
     * Copyright (c) 2008-2013, Niclas Hedhman. All Rights Reserved.
     * Copyright (c) 2012-2014, Paul Merlin. All Rights Reserved.
     *
     * Licensed 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.qi4j.runtime.structure;

    import org.qi4j.api.activation.ActivationException;
    import org.qi4j.api.common.MetaInfo;
    import org.qi4j.api.structure.Module;
    import org.qi4j.api.structure.ModuleDescriptor;
    import org.qi4j.functional.HierarchicalVisitor;
    import org.qi4j.functional.VisitableHierarchy;
    import org.qi4j.runtime.activation.ActivatorsInstance;
    import org.qi4j.runtime.activation.ActivatorsModel;
    import org.qi4j.runtime.composite.TransientsModel;
    import org.qi4j.runtime.entity.EntitiesModel;
    import org.qi4j.runtime.object.ObjectsModel;
    import org.qi4j.runtime.service.ImportedServicesModel;
    import org.qi4j.runtime.service.ServicesModel;
    import org.qi4j.runtime.value.ValuesModel;

    /**
     * JAVADOC
     */
    public class ModuleModel
        implements ModuleDescriptor, VisitableHierarchy<Object, Object>
    {
        private final ActivatorsModel<Module> activatorsModel;
        private final TransientsModel transientsModel;
        private final EntitiesModel entitiesModel;
        private final ObjectsModel objectsModel;
        private final ValuesModel valuesModel;
        private final ServicesModel servicesModel;
        private final ImportedServicesModel importedServicesModel;

        private final String name;
        private final MetaInfo metaInfo;

        public ModuleModel( String name,
                            MetaInfo metaInfo,
                            ActivatorsModel<Module> activatorsModel,
                            TransientsModel transientsModel,
                            EntitiesModel entitiesModel,
                            ObjectsModel objectsModel,
                            ValuesModel valuesModel,
                            ServicesModel servicesModel,
                            ImportedServicesModel importedServicesModel
        )
        {
            this.name = name;
            this.metaInfo = metaInfo;
            this.activatorsModel = activatorsModel;
            this.transientsModel = transientsModel;
            this.entitiesModel = entitiesModel;
            this.objectsModel = objectsModel;
            this.valuesModel = valuesModel;
            this.servicesModel = servicesModel;
            this.importedServicesModel = importedServicesModel;
        }

        @Override
        public String name()
        {
            return name;
        }

        public <T> T metaInfo( Class<T> infoType )
        {
            return metaInfo.get( infoType );
        }

        public ActivatorsInstance<Module> newActivatorsInstance()
            throws ActivationException
        {
            return new ActivatorsInstance<>( activatorsModel.newInstances() );
        }

        @Override
        public <ThrowableType extends Throwable> boolean accept( HierarchicalVisitor<? super Object, ? super Object, ThrowableType> modelVisitor )
            throws ThrowableType
        {
            if( modelVisitor.visitEnter( this ) )
            {
                if( activatorsModel.accept( modelVisitor ) )
                {
                    if( transientsModel.accept( modelVisitor ) )
                    {
                        if( entitiesModel.accept( modelVisitor ) )
                        {
                            if( servicesModel.accept( modelVisitor ) )
                            {
                                if( importedServicesModel.accept( modelVisitor ) )
                                {
                                    if( objectsModel.accept( modelVisitor ) )
                                    {
                                        valuesModel.accept( modelVisitor );
                                    }
                                }
                            }
                        }
                    }
                }
            }
            return modelVisitor.visitLeave( this );
        }

        // Context

        public ModuleInstance newInstance( LayerInstance layerInstance )
        {
            return new ModuleInstance( this, layerInstance, transientsModel, entitiesModel, objectsModel, valuesModel, servicesModel, importedServicesModel );
        }

        @Override
        public String toString()
        {
            return name;
        }
    }