org.apache.isis.viewer.wicket.ui.components.collection.AssociatedWithActionsHelper.java Source code

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/*
 *  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.isis.viewer.wicket.ui.components.collection;

import java.io.Serializable;
import java.util.Collections;
import java.util.List;

import com.google.common.base.Predicates;
import com.google.common.collect.FluentIterable;
import com.google.common.collect.Lists;

import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.adapter.mgr.AdapterManager;
import org.apache.isis.core.metamodel.deployment.DeploymentCategory;
import org.apache.isis.core.metamodel.spec.ActionType;
import org.apache.isis.core.metamodel.spec.ObjectSpecification;
import org.apache.isis.core.metamodel.spec.feature.Contributed;
import org.apache.isis.core.metamodel.spec.feature.ObjectAction;
import org.apache.isis.core.metamodel.spec.feature.OneToManyAssociation;
import org.apache.isis.core.runtime.system.session.IsisSessionFactory;
import org.apache.isis.viewer.wicket.model.mementos.ObjectAdapterMemento;
import org.apache.isis.viewer.wicket.model.models.EntityCollectionModel;
import org.apache.isis.viewer.wicket.ui.components.collection.bulk.BulkActionsHelper;

/**
 * See also {@link BulkActionsHelper}.
 */
public class AssociatedWithActionsHelper implements Serializable {
    private final EntityCollectionModel collectionModel;

    public AssociatedWithActionsHelper(final EntityCollectionModel collectionModel) {
        this.collectionModel = collectionModel;
    }

    public List<ObjectAction> getAssociatedActions(final IsisSessionFactory isisSessionFactory) {

        if (collectionModel.isStandalone()) {
            return Collections.emptyList();
        }
        final OneToManyAssociation collection = collectionModel.getCollectionMemento()
                .getCollection(isisSessionFactory.getSpecificationLoader());

        final ObjectSpecification objectSpec = getObjectSpecification(isisSessionFactory);

        final List<ActionType> actionTypes = inferActionTypes(isisSessionFactory);
        List<ObjectAction> objectActions = objectSpec.getObjectActions(actionTypes, Contributed.INCLUDED,
                Predicates.alwaysTrue());

        return FluentIterable.from(objectActions)
                .filter(ObjectAction.Predicates.associatedWithAndWithCollectionParameterFor(collection)).toList();
    }

    private ObjectSpecification getObjectSpecification(final IsisSessionFactory isisSessionFactory) {
        final ObjectAdapterMemento parentOam = collectionModel.getParentObjectAdapterMemento();
        final ObjectAdapter parentAdapter = parentOam.getObjectAdapter(AdapterManager.ConcurrencyChecking.NO_CHECK,
                isisSessionFactory.getCurrentSession().getPersistenceSession(),
                isisSessionFactory.getSpecificationLoader());
        return parentAdapter.getSpecification();
    }

    private static List<ActionType> inferActionTypes(final IsisSessionFactory isisSessionFactory) {
        final List<ActionType> actionTypes = Lists.newArrayList();
        actionTypes.add(ActionType.USER);
        final DeploymentCategory deploymentCategory = isisSessionFactory.getDeploymentCategory();
        if (!deploymentCategory.isProduction()) {
            actionTypes.add(ActionType.PROTOTYPE);
        }
        return actionTypes;
    }

}