package org.gcube.portlets.widgets.ckandatapublisherwidget.client;

import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.DatasetMetadataBean;
import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.LicensesBean;
import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.ResourceBean;

import com.google.gwt.user.client.rpc.RemoteService;
import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;

/**
 * CKAN publisher services.
 * @author Costantino Perciante at ISTI-CNR 
 * (costantino.perciante@isti.cnr.it)
 */
@RemoteServiceRelativePath("ckanservices")
public interface CKanPublisherService extends RemoteService {
	
	/**
	 * Retrieve the list of licenses to show to the user.
	 * @return a LicenseBean on success, <b>null</b> on error.
	 */
	LicensesBean getLicenses();
	
	/**
	 * Retrieve a partially filled bean given a folder id and its owner.
	 * @param folderId
	 * @param owner
	 * @return @return a DatasetMetadataBean on success, <b>null</b> on error.
	 */
	DatasetMetadataBean getDatasetBean(String folderId, String owner);
	
	/**
	 * Try to create such dataset starting from the information contained into the toCreate bean.
	 * @param toCreate
	 * @return the identifier of the created dataset or null on error
	 */
	String createCKanDataset(DatasetMetadataBean toCreate);
	
	/**
	 * Add this resource to the dataset whose id is datasetId
	 * @param resource
	 * @param datasetId
	 * @param owner of the dataset
	 * @param callback
	 */
	boolean addResourceToDataset(ResourceBean resource, String datasetId, String owner);

}