org.sigmah.offline.dao.ProjectModelAsyncDAO.java Source code

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Here is the source code for org.sigmah.offline.dao.ProjectModelAsyncDAO.java

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package org.sigmah.offline.dao;

/*
 * #%L
 * Sigmah
 * %%
 * Copyright (C) 2010 - 2016 URD
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import java.util.ArrayList;
import java.util.Collection;

import org.sigmah.offline.indexeddb.ObjectStore;
import org.sigmah.offline.indexeddb.Request;
import org.sigmah.offline.indexeddb.Store;
import org.sigmah.offline.indexeddb.Transaction;
import org.sigmah.offline.js.ProjectModelJS;
import org.sigmah.shared.dto.PhaseModelDTO;
import org.sigmah.shared.dto.ProjectModelDTO;

import com.google.gwt.core.client.JsArrayInteger;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.inject.Inject;
import com.google.inject.Singleton;

/**
 * Asynchronous DAO for saving and loading <code>ProjectModelDTO</code> objects.
 * 
 * @author Raphal Calabro (rcalabro@ideia.fr)
 */
@Singleton
public class ProjectModelAsyncDAO extends AbstractUserDatabaseAsyncDAO<ProjectModelDTO, ProjectModelJS> {

    private final PhaseModelAsyncDAO phaseModelAsyncDAO;

    /**
     * {@inheritDoc}
     */
    @Inject
    public ProjectModelAsyncDAO(PhaseModelAsyncDAO phaseModelAsyncDAO) {
        this.phaseModelAsyncDAO = phaseModelAsyncDAO;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void saveOrUpdate(ProjectModelDTO t, AsyncCallback<ProjectModelDTO> callback,
            Transaction<Store> transaction) {
        super.saveOrUpdate(t, callback, transaction);

        for (final PhaseModelDTO phaseModel : t.getPhaseModels()) {
            phaseModelAsyncDAO.saveOrUpdate(phaseModel, null, transaction);
        }
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void get(int id, final AsyncCallback<ProjectModelDTO> callback, final Transaction<Store> transaction) {
        if (transaction.useObjectFromCache(ProjectModelDTO.class, id, callback)) {
            return;
        }

        final ObjectStore projectModelStore = transaction.getObjectStore(Store.PROJECT_MODEL);

        projectModelStore.get(id).addCallback(new AsyncCallback<Request>() {

            @Override
            public void onFailure(Throwable caught) {
                callback.onFailure(caught);
            }

            @Override
            public void onSuccess(Request request) {
                final ProjectModelJS projectModelJS = request.getResult();
                if (projectModelJS != null) {
                    final ProjectModelDTO projectModelDTO = projectModelJS.toDTO();

                    final RequestManager<ProjectModelDTO> requestManager = new RequestManager<ProjectModelDTO>(
                            projectModelDTO, callback);

                    final JsArrayInteger phaseModels = projectModelJS.getPhaseModels();
                    if (phaseModels != null) {
                        final ArrayList<PhaseModelDTO> dtos = new ArrayList<PhaseModelDTO>();
                        projectModelDTO.setPhaseModels(dtos);

                        for (int index = 0; index < phaseModels.length(); index++) {
                            phaseModelAsyncDAO.get(phaseModels.get(index),
                                    new RequestManagerCallback<ProjectModelDTO, PhaseModelDTO>(requestManager) {
                                        @Override
                                        public void onRequestSuccess(PhaseModelDTO result) {
                                            if (result != null) {
                                                dtos.add(result);
                                            }
                                        }
                                    }, transaction);
                        }
                    }

                    requestManager.ready();

                } else {
                    callback.onSuccess(null);
                }
            }
        });
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Store getRequiredStore() {
        return Store.PROJECT_MODEL;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Collection<BaseAsyncDAO<Store>> getDependencies() {
        final ArrayList<BaseAsyncDAO<Store>> dependencies = new ArrayList<BaseAsyncDAO<Store>>();
        dependencies.add(phaseModelAsyncDAO);
        return dependencies;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public ProjectModelJS toJavaScriptObject(ProjectModelDTO t) {
        return ProjectModelJS.toJavaScript(t);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public ProjectModelDTO toJavaObject(ProjectModelJS js) {
        return js.toDTO();
    }

}