GetLinkedProjectsAsyncHandler.java

package org.sigmah.offline.handler;

/*
 * #%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 com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.util.ArrayList;
import org.sigmah.offline.dao.ProjectAsyncDAO;
import org.sigmah.offline.dispatch.AsyncCommandHandler;
import org.sigmah.offline.dispatch.OfflineExecutionContext;
import org.sigmah.shared.command.GetLinkedProjects;
import org.sigmah.shared.command.result.ListResult;
import org.sigmah.shared.dto.ProjectDTO;
import org.sigmah.shared.dto.ProjectFundingDTO;

/**
 * JavaScript implementation of {@link org.sigmah.server.handler.GetLinkedProjectsHandler}.
 * Used when the user is offline.
 * 
 * @author Raphaël Calabro (rcalabro@ideia.fr)
 */
@Singleton
public class GetLinkedProjectsAsyncHandler implements AsyncCommandHandler<GetLinkedProjects, ListResult<ProjectFundingDTO>> {

    private final ProjectAsyncDAO projectAsyncDAO;

	@Inject
	public GetLinkedProjectsAsyncHandler(ProjectAsyncDAO projectAsyncDAO) {
		this.projectAsyncDAO = projectAsyncDAO;
	}
    
    @Override
    public void execute(final GetLinkedProjects command, OfflineExecutionContext executionContext, final AsyncCallback<ListResult<ProjectFundingDTO>> callback) {
        projectAsyncDAO.get(command.getProjectId(), new AsyncCallback<ProjectDTO>() {

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

            @Override
            public void onSuccess(ProjectDTO project) {
                final ArrayList<ProjectFundingDTO> fundings = new ArrayList<ProjectFundingDTO>();
				
				switch(command.getType()) {
					case FUNDED_PROJECT:
						fundings.addAll(project.getFunded());
						break;
					case FUNDING_PROJECT:
						fundings.addAll(project.getFunding());
						break;
				}
				
                callback.onSuccess(new ListResult<ProjectFundingDTO>(fundings));
            }
        });
    }
    
}