GetProjectReportsAsyncHandler.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 org.sigmah.client.dispatch.DispatchListener;
import org.sigmah.offline.dao.ReportReferenceAsyncDAO;
import org.sigmah.offline.dispatch.AsyncCommandHandler;
import org.sigmah.offline.dispatch.OfflineExecutionContext;
import org.sigmah.shared.command.GetProjectReports;
import org.sigmah.shared.command.result.Authentication;
import org.sigmah.shared.command.result.ListResult;
import org.sigmah.shared.dto.report.ReportReference;

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

	@Inject
	private ReportReferenceAsyncDAO reportReferenceAsyncDAO;
	
	@Override
	public void execute(GetProjectReports command, OfflineExecutionContext executionContext, AsyncCallback<ListResult<ReportReference>> callback) {
		reportReferenceAsyncDAO.getAll(getParentId(command), callback);
	}

	@Override
	public void onSuccess(GetProjectReports command, ListResult<ReportReference> result, Authentication authentication) {
		reportReferenceAsyncDAO.saveAll(result, getParentId(command));
	}
	
	private String getParentId(GetProjectReports command) {
		if(command.getProjectId() != null) {
			return "Project-" + command.getProjectId();
			
		} else if(command.getOrgUnitId() != null) {
			return "OrgUnit-" + command.getOrgUnitId();
			
		} else if(command.getReportId() != null) {
			return "Report-" + command.getReportId();
		}
		return null;
	}
}