SceneActionHome.java

/**
 *  C-Nery - A home automation web application for C-Bus.
 *  Copyright (C) 2008,2009,2012  Dave Oxley <dave@daveoxley.co.uk>.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as
 *  published by the Free Software Foundation, either version 3 of the
 *  License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package com.daveoxley.cnery.actions;

import com.daveoxley.cnery.entities.Scene;
import com.daveoxley.cnery.entities.SceneAction;
import com.daveoxley.cnery.scenes.SceneActionRunner;
import com.daveoxley.seam.CNeryEntityHome;
import com.workplacesystems.queuj.Process;
import com.workplacesystems.queuj.Queue;
import com.workplacesystems.queuj.occurrence.RunNever;
import com.workplacesystems.queuj.process.seam.SeamProcessBuilder;
import com.workplacesystems.queuj.resilience.RunOnlyOnce;
import java.util.Locale;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Factory;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.contexts.Contexts;
import org.jboss.seam.core.Events;
import org.jboss.seam.international.StatusMessages;

/**
 *
 * @author Dave Oxley <dave@daveoxley.co.uk>
 */
@Name("sceneActionHome")
@Scope(ScopeType.CONVERSATION)
public class SceneActionHome extends CNeryEntityHome<SceneAction> {

    @In
    private StatusMessages statusMessages;

    @In
    private Events events;

    @In(required=false)
    private Scene selectedScene;

    @In(required=false)
    private SceneAction selectedSceneAction;

    @In
    private Queue<SeamProcessBuilder> DEFAULT_QUEUE;

    @Override
    public void create() {
        super.create();
        clearInstance();
        if (selectedSceneAction != null)
            setId(selectedSceneAction.getId());
    }

    @Override
    protected SceneAction createInstance() {
        SceneAction sa = super.createInstance();
        sa.setScene(selectedScene);
        return sa;
    }

    @Factory("sceneAction")
    public SceneAction getSceneAction() {
        return getInstance();
    }

    @Override
    protected void clearFactoryInstance() {
        create();
        if (Contexts.isConversationContextActive())
            Contexts.getConversationContext().remove("sceneAction");
    }

    public void createProcess() {
        SceneAction sceneAction = getInstance();

        SeamProcessBuilder spb = DEFAULT_QUEUE.newProcessBuilder(Locale.getDefault());
        spb.setProcessOccurrence(new RunNever());
        spb.setProcessPersistence(true);
        spb.setProcessKeepCompleted(true);
        spb.setProcessResilience(new RunOnlyOnce());

        if (sceneAction.getProcess() == null) {
            spb.setParameter("sceneAction", sceneAction);

            spb.setProcessName("SceneActionRunner");
            spb.setProcessDescription("Action runner for scene " + sceneAction.getScene().getName() + " and group " + sceneAction.getAddress());
            spb.setProcessDetails(SceneActionRunner.class, "run", new Class[] {}, new Object[] {});
            Process<Integer> process = spb.newProcess();

            sceneAction.setProcessId(process.getProcessKey());
            sceneAction.setActive(false);
        }
    }

    @Override
    public String update() {
        createProcess();

        String res = super.update();

        if (res != null && res.equals("updated")) {
            statusMessages.clear();
            updatedMessage();

            events.raiseTransactionSuccessEvent("sceneActionsUpdated", getId());
        }

        return res;
    }

    @Override
    public String persist() {
        createProcess();

        String res = super.persist();

        if (res != null && res.equals("persisted")) {
            statusMessages.clear();
            createdMessage();
        }

        return res;
    }

    @Override
    public String remove() {
        SceneAction sceneAction = getInstance();

        Process<Integer> process = sceneAction.getProcess();
        if (process != null)
            process.delete();

        String res = super.remove();

        if (res != null && res.equals("removed")) {
            statusMessages.clear();
            deletedMessage();

            events.raiseTransactionSuccessEvent("clearSceneActionSelection");
        }

        return res;
    }
}