643 lines
22 KiB
Java
643 lines
22 KiB
Java
package org.gcube.portlets.widgets.ckandatapublisherwidget.server;
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import java.util.ArrayList;
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import java.util.Calendar;
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import java.util.List;
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import java.util.Map;
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import javax.servlet.http.HttpSession;
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import org.gcube.application.framework.core.session.ASLSession;
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import org.gcube.application.framework.core.session.SessionManager;
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import org.gcube.common.homelibrary.home.HomeLibrary;
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import org.gcube.common.homelibrary.home.workspace.Workspace;
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import org.gcube.common.homelibrary.home.workspace.WorkspaceFolder;
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import org.gcube.common.homelibrary.home.workspace.WorkspaceItem;
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import org.gcube.common.homelibrary.home.workspace.catalogue.WorkspaceCatalogue;
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import org.gcube.common.homelibrary.home.workspace.folder.FolderItem;
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import org.gcube.datacatalogue.ckanutillibrary.DataCatalogue;
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import org.gcube.datacatalogue.ckanutillibrary.DataCatalogueFactory;
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import org.gcube.datacatalogue.ckanutillibrary.models.ResourceBean;
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import org.gcube.datacatalogue.ckanutillibrary.utils.SessionCatalogueAttributes;
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import org.gcube.datacatalogue.ckanutillibrary.utils.UtilMethods;
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import org.gcube.portal.custom.scopemanager.scopehelper.ScopeHelper;
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import org.gcube.portlets.widgets.ckandatapublisherwidget.client.CKanPublisherService;
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import org.gcube.portlets.widgets.ckandatapublisherwidget.server.utils.Utils;
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import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.DatasetMetadataBean;
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import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.LicensesBean;
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import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.MetaDataProfileBean;
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import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.OrganizationBean;
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import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.ResourceBeanWrapper;
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import org.gcube.vomanagement.usermanagement.UserManager;
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import org.gcube.vomanagement.usermanagement.impl.LiferayUserManager;
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import org.gcube.vomanagement.usermanagement.model.GCubeUser;
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import org.slf4j.LoggerFactory;
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import com.google.gwt.user.server.rpc.RemoteServiceServlet;
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import com.liferay.portal.service.UserLocalServiceUtil;
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import eu.trentorise.opendata.jackan.model.CkanLicense;
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/**
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* Server side of the data publisher.
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* @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
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*/
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@SuppressWarnings("serial")
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public class CKANPublisherServicesImpl extends RemoteServiceServlet implements CKanPublisherService{
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// Logger
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private static final org.slf4j.Logger logger = LoggerFactory.getLogger(CKANPublisherServicesImpl.class);
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public static final String TEST_SCOPE = "/gcube/devsec/devVRE";
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public static final String TEST_USER = "test.user";
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private final static String TEST_SEC_TOKEN = "a1e19695-467f-42b8-966d-bf83dd2382ef";
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/**
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* Retrieve an instance of the library for the scope
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* @param scope if it is null it is evaluated from the session
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* @return
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*/
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public DataCatalogue getCatalogue(String scope){
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DataCatalogue instance = null;
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try{
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String scopeInWhichDiscover = (scope != null && !scope.isEmpty()) ? scope : getASLSession().getScope();
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logger.debug("Discovering ckan instance into scope " + scopeInWhichDiscover);
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instance = DataCatalogueFactory.getFactory().getUtilsPerScope(scopeInWhichDiscover);
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}catch(Exception e){
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logger.error("Unable to retrieve ckan utils", e);
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}
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return instance;
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}
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/**
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* the current ASLSession
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* @return the session
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*/
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private ASLSession getASLSession() {
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String sessionID = this.getThreadLocalRequest().getSession().getId();
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String user = (String) this.getThreadLocalRequest().getSession().getAttribute(ScopeHelper.USERNAME_ATTRIBUTE);
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if (user == null) {
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logger.warn("USER IS NULL setting testing user and Running OUTSIDE PORTAL");
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user = getDevelopmentUser();
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SessionManager.getInstance().getASLSession(sessionID, user).setScope(TEST_SCOPE);
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}
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return SessionManager.getInstance().getASLSession(sessionID, user);
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}
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/**
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* when packaging test will fail if the user is not set to test.user
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* @return .
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*/
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public String getDevelopmentUser() {
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String user = TEST_USER;
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// user = "costantino.perciante";
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return user;
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}
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/**
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* Get current user's token (for a given scope)
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* @param scope if it is not specified it will be retrieved from the asl
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* @return String the ckan user's token
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*/
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private String getUserCKanTokenFromSession(String scope){
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String token = null;
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if(!isWithinPortal()){
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logger.warn("You are running outside the portal");
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token = TEST_SEC_TOKEN;
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}else{
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ASLSession aslSession = getASLSession();
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String username = aslSession.getUsername();
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// store info in the http session
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HttpSession httpSession = getThreadLocalRequest().getSession();
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// check the scope we need to discover
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String scopeInWhichDiscover = (scope != null && !scope.isEmpty()) ? scope : getASLSession().getScope();
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// get the key per scope
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String keyPerScope = UtilMethods.concatenateSessionKeyScope(SessionCatalogueAttributes.CKAN_TOKEN_KEY, scopeInWhichDiscover);
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// check if session expired
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if(username.equals(TEST_USER)){
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logger.warn("Session expired, returning null token");
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token = null;
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}else{
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try{
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logger.debug("User in session is " + username);
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if(httpSession.getAttribute(keyPerScope) != null){
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token = (String)httpSession.getAttribute(keyPerScope);
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logger.debug("Found ckan token into session");
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}
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else{
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token = getCatalogue(scopeInWhichDiscover).getApiKeyFromUsername(username);
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httpSession.setAttribute(keyPerScope, token);
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logger.debug("Ckan token has been set for user " + username);
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}
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logger.debug("Found ckan token " + token.substring(0, 3) + "************************" +
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" for user " + username + " into scope " + scopeInWhichDiscover);
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}catch(Exception e){
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logger.error("Error while retrieving the key" , e);
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}
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}
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}
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return token;
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}
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/**
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* Retrieve the list of organizations in which the user can publish (roles ADMIN)
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* @param username
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* @return the list of organizations
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*/
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private List<OrganizationBean> getUserOrganizationsListAdmin(String username, String scope) {
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logger.debug("Request for user " + username + " organizations list");
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List<OrganizationBean> orgsName = new ArrayList<OrganizationBean>();
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// get http session
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HttpSession httpSession = getThreadLocalRequest().getSession();
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// get key
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String keyPerScope = UtilMethods.concatenateSessionKeyScope(SessionCatalogueAttributes.CKAN_ORGANIZATIONS_PUBLISH_KEY, scope);
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if(httpSession.getAttribute(keyPerScope) != null){
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orgsName = (List<OrganizationBean>)httpSession.getAttribute(keyPerScope);
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logger.info("List of organizations was into session " + orgsName);
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}
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else{
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orgsName = Utils.getUserOrganizationsListAdminEditor(scope, username, getASLSession().getGroupName(), this);
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httpSession.setAttribute(keyPerScope, orgsName);
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logger.info("Organizations name for user " + username + " has been saved into session " + orgsName);
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}
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return orgsName;
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}
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/**
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* Online or in development mode?
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* @return true if you're running into the portal, false if in development
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*/
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private boolean isWithinPortal() {
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try {
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UserLocalServiceUtil.getService();
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return true;
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}
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catch (com.liferay.portal.kernel.bean.BeanLocatorException ex) {
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logger.trace("Development Mode ON");
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return false;
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}
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}
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/**
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* Find a license id given the license text.
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* @param chosenLicense
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* @return
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*/
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private String findLicenseIdByLicense(String chosenLicense) {
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String scope = (String)getThreadLocalRequest().getSession().getAttribute(SessionCatalogueAttributes.SCOPE_CLIENT_PORTLET_URL);
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return getCatalogue(scope).findLicenseIdByLicenseTitle(chosenLicense);
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}
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@Override
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public LicensesBean getLicenses() {
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ASLSession session = getASLSession();
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String username = session.getUsername();
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// get http session
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HttpSession httpSession = getThreadLocalRequest().getSession();
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String scope = (String)httpSession.getAttribute(SessionCatalogueAttributes.SCOPE_CLIENT_PORTLET_URL);
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logger.info("Request for CKAN licenses for scope " + scope);
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// get key per scope
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String keyPerScope = UtilMethods.concatenateSessionKeyScope(SessionCatalogueAttributes.CKAN_LICENSES_KEY, scope);
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LicensesBean licensesBean = null;
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if(httpSession.getAttribute(keyPerScope) != null){
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licensesBean = (LicensesBean)httpSession.getAttribute(keyPerScope);
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logger.debug("List of licenses was into session");
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}
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else{
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List<CkanLicense> titlesLicenses = getCatalogue(scope).getLicenses();
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List<String> titles = new ArrayList<String>();
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List<String> urls = new ArrayList<String>();
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for (CkanLicense license : titlesLicenses) {
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titles.add(license.getTitle());
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String url = (license.getUrl() != null && !license.getUrl().isEmpty()) ? license.getUrl() : "";
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urls.add(url);
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}
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licensesBean = new LicensesBean(titles, urls);
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httpSession.setAttribute(keyPerScope, licensesBean);
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logger.debug("List of licenses has been saved into session");
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}
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return licensesBean;
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}
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@Override
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public DatasetMetadataBean getDatasetBean(String folderId){
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DatasetMetadataBean bean = null;
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ASLSession aslSession = getASLSession();
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String userName = aslSession.getUsername();
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logger.info("DatasetBean request for " + folderId + " and " + userName);
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HttpSession httpSession = this.getThreadLocalRequest().getSession();
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String scope = (String)httpSession.getAttribute(SessionCatalogueAttributes.SCOPE_CLIENT_PORTLET_URL);
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logger.debug("Scope recovered from session is " + scope);
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if(isWithinPortal()){
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try{
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// check if session expired
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if(userName.equals(TEST_USER)){
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logger.debug("SESSION EXPIRED");
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return null;
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}
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logger.debug("Request dataset metadata bean for folder with id " + folderId
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+ " whose owner is " + userName);
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// get usermanager (liferay)
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UserManager liferUserManager = new LiferayUserManager();
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GCubeUser userOwner = liferUserManager.getUserByUsername(userName);
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// build bean
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logger.debug("Building bean");
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bean = new DatasetMetadataBean();
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bean.setId(folderId);
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bean.setOwnerIdentifier(userName);
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bean.setVersion(1);
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bean.setAuthorName(userOwner.getFirstName());
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bean.setAuthorSurname(userOwner.getLastName());
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bean.setAuthorEmail(userOwner.getEmail());
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bean.setMaintainer(userOwner.getFullname());
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bean.setMaintainerEmail(userOwner.getEmail());
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bean.setOrganizationList(getUserOrganizationsListAdmin(userName, scope));
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// if the request comes from the workspace
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if(folderId != null && !folderId.isEmpty()){
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handleWorkspaceResources(folderId, userName, bean);
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}
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}catch(Exception e){
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logger.error("Error while retrieving folder information", e);
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}
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}else{
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try{
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bean = new DatasetMetadataBean();
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bean.setId(folderId);
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bean.setDescription("This is a fantastic description");
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bean.setVersion(1);
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String onlyAlphanumeric = "test-creation-blablabla".replaceAll("[^A-Za-z0-9]", "");
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bean.setTitle(onlyAlphanumeric + Calendar.getInstance().getTimeInMillis());
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bean.setAuthorName("Costantino");
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bean.setAuthorSurname("Perciante");
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bean.setAuthorEmail("costantino.perciante@isti.cnr.it");
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bean.setMaintainer("Costantino Perciante");
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bean.setMaintainerEmail("costantino.perciante@isti.cnr.it");
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bean.setOrganizationList(getUserOrganizationsListAdmin(userName, TEST_SCOPE));
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bean.setOwnerIdentifier(userName);
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if(folderId != null && !folderId.isEmpty()){
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handleWorkspaceResources(folderId, userName, bean);
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}
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}catch(Exception e){
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logger.error("Error while building bean into dev mode", e);
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}
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}
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return bean;
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}
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/**
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* This method receives a folder id within the user's workspace and set the list of resources in the dataset bean to be returned
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* @param folderId
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* @param owner
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* @param bean
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* @param userName
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* @throws Exception
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*/
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private void handleWorkspaceResources(String folderId, String userName,
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DatasetMetadataBean bean) throws Exception {
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// get workspace
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Workspace ws = HomeLibrary
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.getHomeManagerFactory()
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.getHomeManager()
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.getHome(userName).getWorkspace();
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WorkspaceItem originalFolder = ws.getItem(folderId);
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// set some info
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String onlyAlphanumeric = originalFolder.getName().replaceAll("[^A-Za-z0-9.-_]", " "); // that is, remove characters different than the ones inside
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bean.setTitle(onlyAlphanumeric);
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bean.setDescription(originalFolder.getDescription());
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// Create the folder in the catalogue
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Map<String, String> folderItems = Utils.getGcubeItemProperties(originalFolder);
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bean.setCustomFields(folderItems);
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// check the resources within the folder (skip subdirectories for now TODO)
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List<String> childrenIds = new ArrayList<String>();
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for (WorkspaceItem file : originalFolder.getChildren()) {
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if(!file.isFolder()){
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childrenIds.add(file.getId());
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}
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}
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List<ResourceBeanWrapper> listOfResources = Utils.getWorkspaceResourcesInformation(childrenIds, ws, userName);
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bean.setResources(listOfResources);
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}
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/**
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* Copy into the .catalogue area folder the checked resources
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* @param resourcesToAdd
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* @param folderId
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* @param userName
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* @param bean
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* @return
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*/
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private List<ResourceBean> copyResourcesToUserCatalogueArea(
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List<ResourceBeanWrapper> resourcesToAdd, String folderId, String userName, DatasetMetadataBean bean) throws Exception{
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logger.debug("Request to copy onto catalogue area. Parameters are resources to add" + resourcesToAdd);
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logger.debug("Request to copy onto catalogue area. Folder id is " + folderId);
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logger.debug("Request to copy onto catalogue area. Username is " + userName);
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logger.debug("Request to copy onto catalogue area. DatasetMetadataBean is " + bean);
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// in to the .catalogue area of the user's workspace
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Workspace ws = HomeLibrary
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.getHomeManagerFactory()
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.getHomeManager()
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.getHome(userName)
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.getWorkspace();
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// Retrieve the catalogue of the user
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WorkspaceCatalogue userCatalogue = ws.getCatalogue();
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// Create the folder in the catalogue
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WorkspaceItem copiedFolder = userCatalogue.addWorkspaceItem(folderId, userCatalogue.getId()); // add to .catalogue root area
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// change description for the folder
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copiedFolder.setDescription(bean.getDescription());
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// change name of the copied folder to match the title
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((WorkspaceFolder)copiedFolder).rename(org.gcube.datacatalogue.ckanutillibrary.utils.UtilMethods.fromProductTitleToName(bean.getTitle()));
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List<ResourceBean> resources = new ArrayList<ResourceBean>();
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// copy only the selected ones
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for(ResourceBeanWrapper resourceBeanWrapper : resourcesToAdd){
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if (resourceBeanWrapper.isToBeAdded()) {
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// ok it is a file, so copy it into the copiedFolder
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WorkspaceItem copiedFile = userCatalogue.addWorkspaceItem(resourceBeanWrapper.getId(), copiedFolder.getId());
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// name and description could have been edited
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copiedFile.setDescription(resourceBeanWrapper.getDescription());
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resources.add(new ResourceBean(
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copiedFile.getPublicLink(true),
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resourceBeanWrapper.getName(),
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copiedFile.getDescription(),
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copiedFile.getId(),
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userName,
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null, // to be set
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((FolderItem)copiedFile).getMimeType()));
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// postpone rename operation
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copiedFile.rename(resourceBeanWrapper.getName());
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}
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}
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return resources;
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}
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@Override
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public DatasetMetadataBean createCKanDataset(DatasetMetadataBean toCreate) {
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logger.debug("Request for creating a dataset with these information " + toCreate);
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ASLSession aslSession = getASLSession();
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String userName = aslSession.getUsername();
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try{
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// check if session expired
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if(userName.equals(TEST_USER)){
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logger.debug("SESSION EXPIRED");
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return null;
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}
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String title = toCreate.getTitle();
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String organizationNameOrId = toCreate.getSelectedOrganization();
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String author = toCreate.getAuthorFullName();
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String authorMail = toCreate.getAuthorEmail();
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String maintainer = toCreate.getMaintainer();
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String maintainerMail = toCreate.getMaintainerEmail();
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long version = toCreate.getVersion();
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String description = toCreate.getDescription();
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String chosenLicense = toCreate.getLicense();
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String licenseId = findLicenseIdByLicense(chosenLicense);
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List<String> listOfTags = toCreate.getTags();
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Map<String, String> customFields = toCreate.getCustomFields();
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boolean setPublic = toCreate.getVisibility();
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// get the list of resources and convert to ResourceBean
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List<ResourceBean> resources = null;
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List<ResourceBeanWrapper> resourcesToAdd = toCreate.getResources();
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// we need to copy such resource in the .catalogue area of the user's ws
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if(resourcesToAdd != null && !resourcesToAdd.isEmpty()){
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resources = copyResourcesToUserCatalogueArea(resourcesToAdd, toCreate.getId(), userName, toCreate);
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}
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logger.debug("The user wants to publish in organization with name " + organizationNameOrId);
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String scope = Utils.retrieveScopeFromOrganizationName(organizationNameOrId);
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DataCatalogue utils = getCatalogue(scope);
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String datasetId = utils.createCKanDataset(getUserCKanTokenFromSession(scope), title, organizationNameOrId, author,
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authorMail, maintainer, maintainerMail, version, description, licenseId,
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listOfTags, customFields, resources, setPublic);
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if(datasetId != null){
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logger.debug("Dataset created!");
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toCreate.setId(datasetId);
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// retrieve the url
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String datasetUrl = utils.getPortletUrl() + "?path=" + utils.getUrlFromDatasetIdOrName(getUserCKanTokenFromSession(scope), datasetId, true);
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toCreate.setSource(datasetUrl);
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// start a thread that will associate this dataset with the group
|
|
if(toCreate.getChosenProfile() != null){
|
|
|
|
AssociationToGroupThread thread = new AssociationToGroupThread(toCreate.getChosenProfile(), datasetId, userName, utils);
|
|
thread.start();
|
|
|
|
}
|
|
|
|
return toCreate;
|
|
|
|
}else{
|
|
|
|
logger.error("Failed to create the dataset");
|
|
|
|
}
|
|
|
|
}catch(Exception e){
|
|
logger.error("Unable to create the dataset", e);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
@Override
|
|
public ResourceBeanWrapper addResourceToDataset(ResourceBeanWrapper resource, String datasetId) {
|
|
|
|
|
|
ASLSession session = getASLSession();
|
|
String username = session.getUsername();
|
|
|
|
logger.debug("Incoming request for creating new resource for dataset with id " + datasetId + " and organization name of the dataset is " + resource.getOrganizationNameDatasetParent());
|
|
logger.debug("Owner is " + username + " and resource is " + resource);
|
|
|
|
if(!isWithinPortal()){
|
|
|
|
logger.warn("Running outside the portal");
|
|
return resource;
|
|
|
|
}else{
|
|
|
|
if(username.equals(TEST_USER)){
|
|
|
|
logger.warn("SESSION EXPIRED! ");
|
|
return null;
|
|
|
|
}else{
|
|
try{
|
|
|
|
ResourceBean resourceBean = new ResourceBean(
|
|
resource.getUrl(),
|
|
resource.getName(),
|
|
resource.getDescription(),
|
|
null,
|
|
username,
|
|
datasetId,
|
|
null);
|
|
|
|
// get the scope in which we should discover the ckan instance given the organization name in which the dataset was created
|
|
String scope = Utils.retrieveScopeFromOrganizationName(resource.getOrganizationNameDatasetParent());
|
|
String resourceId = getCatalogue(scope).addResourceToDataset(resourceBean, getUserCKanTokenFromSession(scope));
|
|
|
|
if(resourceId != null){
|
|
logger.debug("Resource " + resource.getName() + " is now available");
|
|
// set its id and turn it to the client
|
|
resource.setId(resourceId);
|
|
return resource;
|
|
}
|
|
}catch(Exception e){
|
|
logger.error("Unable to create new resource", e);
|
|
}
|
|
}
|
|
logger.debug("No resource created");
|
|
return null;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public boolean deleteResourceFromDataset(ResourceBeanWrapper resource) {
|
|
|
|
logger.debug("Request for deleting resource " + resource);
|
|
boolean deleted = false;
|
|
|
|
if(!isWithinPortal()){
|
|
logger.warn("Running outside the portal");
|
|
return deleted;
|
|
}else{
|
|
|
|
ASLSession session = getASLSession();
|
|
String username = session.getUsername();
|
|
|
|
if(username.equals(TEST_USER)){
|
|
logger.warn("SESSION EXPIRED!");
|
|
return deleted;
|
|
}else{
|
|
try{
|
|
// get the scope in which we should discover the ckan instance given the organization name in which the dataset was created
|
|
String scope = Utils.retrieveScopeFromOrganizationName(resource.getOrganizationNameDatasetParent());
|
|
deleted = getCatalogue(scope).
|
|
deleteResourceFromDataset(resource.getId(), getUserCKanTokenFromSession(scope));
|
|
if(deleted){
|
|
logger.debug("Resource described by " + resource + " deleted");
|
|
}else
|
|
logger.error("Resource described by " + resource + " NOT deleted");
|
|
}catch(Exception e){
|
|
logger.error("Error while trying to delete resource described by " + resource, e);
|
|
}
|
|
return deleted;
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public List<MetaDataProfileBean> getProfiles(String orgName) {
|
|
|
|
logger.debug("Requested profiles for products into orgName " + orgName);
|
|
|
|
List<MetaDataProfileBean> toReturn = new ArrayList<MetaDataProfileBean>();
|
|
try{
|
|
String evaluatedScope = Utils.retrieveScopeFromOrganizationName(orgName);
|
|
logger.debug("Evaluated scope is " + evaluatedScope);
|
|
toReturn = Utils.getMetadataProfilesList(evaluatedScope, getThreadLocalRequest().getSession(), getASLSession());
|
|
}catch(Exception e){
|
|
logger.error("Failed to retrieve profiles for scope coming from organization name " + orgName, e);
|
|
}
|
|
|
|
return toReturn;
|
|
}
|
|
|
|
@Override
|
|
public boolean datasetIdAlreadyExists(String title) {
|
|
|
|
if(title == null || title.isEmpty())
|
|
return true; // it's an error somehow
|
|
|
|
try{
|
|
|
|
String scope = (String)getThreadLocalRequest().getSession().getAttribute(SessionCatalogueAttributes.SCOPE_CLIENT_PORTLET_URL);
|
|
String idFromTitle = org.gcube.datacatalogue.ckanutillibrary.utils.UtilMethods.fromProductTitleToName(title);
|
|
return getCatalogue(scope).existProductWithNameOrId(idFromTitle);
|
|
|
|
}catch(Exception e){
|
|
logger.error("Unable to check if such a dataset id already exists", e);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
} |