Start adding support for Metadata formats

git-svn-id: http://svn.d4science-ii.research-infrastructures.eu/gcube/trunk/portlets/widgets/ckan-metadata-publisher-widget@129020 82a268e6-3cf1-43bd-a215-b396298e98cf

pom.xml

@@ -93,14 +93,10 @@
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-log4j12</artifactId>
-			<version>1.6.4</version>
-			<scope>provided</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-api</artifactId>
-			<version>1.6.4</version>
-			<scope>provided</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.gcube.common.portal</groupId>
@@ -176,6 +172,11 @@
 			<artifactId>gcube-widgets</artifactId>
 			<scope>provided</scope>
 		</dependency>
+		<dependency>
+			<groupId>net.htmlparser.jericho</groupId>
+			<artifactId>jericho-html</artifactId>
+			<version>3.3</version>
+		</dependency>
 	</dependencies>
 
 	<build>

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/CKanMetadataPublisher.java

@@ -1,6 +1,6 @@
 package org.gcube.portlets.widgets.ckandatapublisherwidget.client;
 
-import org.gcube.portlets.widgets.ckandatapublisherwidget.client.ui.EditMetadataForm;
+import org.gcube.portlets.widgets.ckandatapublisherwidget.client.ui.CreateDatasetForm;
 
 import com.google.gwt.core.client.EntryPoint;
 import com.google.gwt.user.client.ui.RootPanel;
@@ -24,7 +24,7 @@ public class CKanMetadataPublisher implements EntryPoint {
 		
 		String idFolderWorkspace = "8b67fc1f-940d-4512-b783-105fba11c270";
 		String owner = "costantino.perciante";
-		RootPanel.get("ckan-metadata-publisher-div").add(new EditMetadataForm(owner));
+		RootPanel.get("ckan-metadata-publisher-div").add(new CreateDatasetForm(owner));
 
 	}
 }

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/CKanPublisherService.java

@@ -32,17 +32,26 @@ public interface CKanPublisherService extends RemoteService {
 	/**
 	 * Try to create such dataset starting from the information contained into the toCreate bean.
 	 * @param toCreate
+	 * @param isWorkspaceRequest if the call comes from the workspace
 	 * @return the identifier of the created dataset or null on error
 	 */
-	String createCKanDataset(DatasetMetadataBean toCreate);
+	String createCKanDataset(DatasetMetadataBean toCreate, boolean isWorkspaceRequest);
 	
 	/**
 	 * 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);
+	ResourceBean addResourceToDataset(ResourceBean resource, String datasetId, String owner);
+	
+	/**
+	 * Delete this resource from the dataset with id datasetId
+	 * @param resource
+	 * @param datasetId
+	 * @param owner of the dataset
+	 * @return <b>true</b> on success, false otherwise
+	 */
+	boolean deleteResourceFromDataset(ResourceBean resource, String owner);
 
 }

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/CKanPublisherServiceAsync.java

@@ -31,9 +31,10 @@ public interface CKanPublisherServiceAsync {
 	/**
 	 * Try to create such dataset starting from the information contained into the toCreate bean.
 	 * @param toCreate
+	 * @param isWorkspaceRequest if the call comes from the workspace
 	 * @return <b>true</b> on success, <b>false</b> otherwise
 	 */
-	void createCKanDataset(DatasetMetadataBean toCreate,
+	void createCKanDataset(DatasetMetadataBean toCreate, boolean isWorkspaceRequest,
 			AsyncCallback<String> callback);
 
 	/**
@@ -44,6 +45,15 @@ public interface CKanPublisherServiceAsync {
 	 * @param callback
 	 */
 	void addResourceToDataset(ResourceBean resource, String datasetId, String owner,
-			AsyncCallback<Boolean> callback);
+			AsyncCallback<ResourceBean> callback);
+
+	/**
+	 * Delete this resource from the dataset with id datasetId
+	 * @param resource
+	 * @param owner of the dataset
+	 * @return <b>true</b> on success, false otherwise
+	 */
+	void deleteResourceFromDataset(ResourceBean resource,
+			String owner, AsyncCallback<Boolean> callback);
 
 }

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/events/DeleteResourceEvent.java

@@ -0,0 +1,34 @@
+package org.gcube.portlets.widgets.ckandatapublisherwidget.client.events;
+
+import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.ResourceBean;
+
+import com.google.gwt.event.shared.GwtEvent;
+
+/**
+ * Deleted resource event.
+ * @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
+ */
+public class DeleteResourceEvent extends GwtEvent<DeleteResourceEventHandler> {
+	public static Type<DeleteResourceEventHandler> TYPE = new Type<DeleteResourceEventHandler>();
+
+	private ResourceBean resource;
+	
+	public DeleteResourceEvent(ResourceBean resource) {
+		this.resource = resource;
+	}
+
+	public ResourceBean getResource() {
+		return resource;
+	}
+	
+	@Override
+	public Type<DeleteResourceEventHandler> getAssociatedType() {
+		return TYPE;
+	}
+
+	@Override
+	protected void dispatch(DeleteResourceEventHandler handler) {
+		handler.onDeletedResource(this);
+	}
+
+}

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/events/DeleteResourceEventHandler.java

@@ -0,0 +1,11 @@
+package org.gcube.portlets.widgets.ckandatapublisherwidget.client.events;
+
+import com.google.gwt.event.shared.EventHandler;
+
+/**
+ * The delete event handler
+ * @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
+ */
+public interface DeleteResourceEventHandler extends EventHandler{
+	void onDeletedResource(DeleteResourceEvent deleteResourceEvent);
+}

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/AddResourceToDataset.java

@@ -36,10 +36,10 @@ public class AddResourceToDataset extends Composite{
 
 	// bus to alert the dataset form about this new resource
 	private HandlerManager eventBus;
-	
+
 	// the dataset id
 	private String datasetId;
-	
+
 	// the owner
 	private String owner;
 
@@ -57,10 +57,10 @@ public class AddResourceToDataset extends Composite{
 
 		// save bus
 		this.eventBus = eventBus;
-		
+
 		// save dataset id (it is needed when we will add resources)
 		this.datasetId = datasetId;
-		
+
 		// the owner of the dataset/files
 		this.owner = owner;
 	}
@@ -71,44 +71,45 @@ public class AddResourceToDataset extends Composite{
 		infoBlock.setVisible(false);
 
 		// validation
-		if(resourceUrlTextBox.getText().isEmpty()){
+		if(resourceUrlTextBox.getText().isEmpty() || resourceNameTextBox.getText().isEmpty()){
 
-			infoBlock.setType(AlertType.ERROR);
-			infoBlock.setText("URL cannot be empty");
-			infoBlock.setVisible(true);
+			showAlert("Url and name fields cannot be empty", AlertType.ERROR);
 			return;
 
 		}
-
-		// remove html tags into description
-		//String description = convert(resourceDescriptionTextArea.getText()); TODO
-
+		
 		// collect data and build up the bean
 		final ResourceBean resource = new ResourceBean(resourceUrlTextBox.getText(), resourceNameTextBox.getText(), resourceDescriptionTextArea.getText());
 
 		// disable add button
 		addResourceButton.setEnabled(false);
-		
+
 		// try to create
-		ckanServices.addResourceToDataset(resource, datasetId, owner, new AsyncCallback<Boolean>() {
-			
+		ckanServices.addResourceToDataset(resource, datasetId, owner, new AsyncCallback<ResourceBean>() {
+
 			@Override
-			public void onSuccess(Boolean result) {
-				
-				if(result){
+			public void onSuccess(ResourceBean result) {
+
+				if(result != null){
 					showAlert("Resource created correctly", AlertType.SUCCESS);
-					eventBus.fireEvent(new AddResourceEvent(resource));
+					eventBus.fireEvent(new AddResourceEvent(result));
+
+					// remove data
+					resourceUrlTextBox.setText("");
+					resourceNameTextBox.setText("");
+					resourceDescriptionTextArea.setText("");
+
 				}
 				else
-					showAlert("Unable to add this resource. Check the url is correct", AlertType.ERROR);
-				
+					showAlert("Unable to add this resource. Check that the url is correct", AlertType.ERROR);
+
 			}
-			
+
 			@Override
 			public void onFailure(Throwable caught) {
-				
+
 				showAlert("Unable to add this resource, sorry", AlertType.ERROR);
-				
+
 			}
 		});
 
@@ -120,7 +121,7 @@ public class AddResourceToDataset extends Composite{
 	 * @param type
 	 */
 	protected void showAlert(String text, AlertType type) {
-		
+
 		infoBlock.setText(text);
 		infoBlock.setType(type);
 		infoBlock.setVisible(true);

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/AddResourceToDataset.ui.xml

@@ -37,15 +37,6 @@
 	.add-resource-button {
 		float: right;
 	}
-	
-	.info-markdown {
-		width: 95%;
-		background-color: #ebebeb;
-		border-bottom: 1px thin;
-		border-left: 1px thin;
-		border-right: 1px thin;
-		padding: 3px;
-	}
 	</ui:style>
 	<g:HTMLPanel>
 		<b:Form type="HORIZONTAL" styleName="{style.form-main-style}"
@@ -73,6 +64,7 @@
 
 				<b:ControlGroup>
 					<b:ControlLabel for="name" title="Resource name">
+						<font color="red">*</font>
 						Name:
 					</b:ControlLabel>
 					<b:Controls>
@@ -89,34 +81,16 @@
 						<b:TextArea alternateSize="LARGE"
 							placeholder="Some useful notes about data" b:id="description"
 							title="Resource description" ui:field="resourceDescriptionTextArea" />
-						<b:Paragraph styleName="{style.info-markdown}">
-							You can use
-							<b:Popover html="true"
-								text="__Bold text__ or _italic text_
-                          		# title
-								## secondary title
-								### etc
-								
-								* list
-								* of
-								* items
-								
-								http://auto.link.ed/ 
-								
-								Please note: HTML tags are stripped out for security reasons"
-								heading="Markdown short guide">
-								<b:Button type="LINK">Markdown formatting</b:Button>
-							</b:Popover>
-						</b:Paragraph>
 					</b:Controls>
 				</b:ControlGroup>
 
 				<!-- Alert blocks for info/errors -->
-				<b:AlertBlock type="INFO" animation="true" visible="false"
+				<b:AlertBlock type="INFO" animation="true" visible="false" close="false"
 					ui:field="infoBlock" styleName="{style.block-alert-style}"></b:AlertBlock>
 
 				<!-- Add resource button -->
-				<b:Button title="Add resource" ui:field="addResourceButton" >Add</b:Button>
+				<b:Button title="Add resource" ui:field="addResourceButton"
+					type="PRIMARY">Add</b:Button>
 
 			</b:Fieldset>
 		</b:Form>

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/AddedResourcesSummary.java

@@ -3,24 +3,31 @@ package org.gcube.portlets.widgets.ckandatapublisherwidget.client.ui;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.gcube.portlets.widgets.ckandatapublisherwidget.client.CKanPublisherService;
+import org.gcube.portlets.widgets.ckandatapublisherwidget.client.CKanPublisherServiceAsync;
 import org.gcube.portlets.widgets.ckandatapublisherwidget.client.events.AddResourceEvent;
 import org.gcube.portlets.widgets.ckandatapublisherwidget.client.events.AddResourceEventHandler;
+import org.gcube.portlets.widgets.ckandatapublisherwidget.client.events.DeleteResourceEvent;
+import org.gcube.portlets.widgets.ckandatapublisherwidget.client.events.DeleteResourceEventHandler;
 import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.ResourceBean;
 
+import com.github.gwtbootstrap.client.ui.Accordion;
+import com.github.gwtbootstrap.client.ui.AccordionGroup;
 import com.github.gwtbootstrap.client.ui.Button;
-import com.github.gwtbootstrap.client.ui.constants.ButtonType;
+import com.github.gwtbootstrap.client.ui.Paragraph;
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.event.dom.client.ClickEvent;
 import com.google.gwt.event.dom.client.ClickHandler;
 import com.google.gwt.event.shared.HandlerManager;
 import com.google.gwt.uibinder.client.UiBinder;
 import com.google.gwt.uibinder.client.UiField;
+import com.google.gwt.user.client.rpc.AsyncCallback;
 import com.google.gwt.user.client.ui.Composite;
 import com.google.gwt.user.client.ui.VerticalPanel;
 import com.google.gwt.user.client.ui.Widget;
 
 /**
- * A summary of the added resources by the user.
+ * A summary of the resources added by the user.
  * @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
  */
 public class AddedResourcesSummary extends Composite{
@@ -32,20 +39,29 @@ public class AddedResourcesSummary extends Composite{
 	UiBinder<Widget, AddedResourcesSummary> {
 	}
 
+	//Create a remote service proxy to talk to the server-side ckan service.
+	private final CKanPublisherServiceAsync ckanServices = GWT.create(CKanPublisherService.class);
+
 	// Event bus
 	private HandlerManager eventBus;
 
-	// list of added resources
+	// list of added resources (beans)
 	List<ResourceBean> addedResources;
 
+	// the owner
+	private String owner;
+
 	@UiField VerticalPanel addResourcesPanel;
 
-	public AddedResourcesSummary(HandlerManager eventBus) {
+	public AddedResourcesSummary(HandlerManager eventBus, String owner) {
 		initWidget(uiBinder.createAndBindUi(this));
 
 		// save bus
 		this.eventBus = eventBus;
 
+		// save owner
+		this.owner = owner;
+
 		// bind on add resource event
 		bind();
 
@@ -53,6 +69,9 @@ public class AddedResourcesSummary extends Composite{
 		addedResources = new ArrayList<ResourceBean>();
 	}
 
+	/**
+	 * Bind on add/delete resource event
+	 */
 	private void bind() {
 
 		// when a new resource is added
@@ -64,71 +83,84 @@ public class AddedResourcesSummary extends Composite{
 				// get the resource
 				final ResourceBean justAddedResource = addResourceEvent.getResource();
 
-				// check if a resource with this id already exists
-				for (ResourceBean resource : addedResources){
+				// Build an accordion to show resource info
+				Accordion accordion = new Accordion();
+				AccordionGroup accordionGroup = new AccordionGroup();
+				accordionGroup.setHeading("- " + justAddedResource.getName());
+				accordion.add(accordionGroup);
 
-					if(resource.getId().equals(justAddedResource.getId())){
+				// add sub-info such as url and description
+				Paragraph pUrl = new Paragraph();
+				pUrl.setText("Url : " + justAddedResource.getUrl());
+				Paragraph pDescription = new Paragraph();
+				pDescription.setText("Description : " + justAddedResource.getDescription());
+
+				// button to delete the resource
+				Button deleteButton = new Button();
+				deleteButton.setText("Delete");
+				deleteButton.addClickHandler(new ClickHandler() {
+
+					@Override
+					public void onClick(ClickEvent event) {
+
+						eventBus.fireEvent(new DeleteResourceEvent(justAddedResource));
 
-						// clear list and rebuild
-						rebuildSummary();
-						return;
 					}
-				}
+				});
 
-				Button associatedButton = new Button();
-				associatedButton.setType(ButtonType.LINK);
-				associatedButton.setText("-" + justAddedResource.getName());
+				// fill accordion
+				accordionGroup.add(pUrl);
+				accordionGroup.add(pDescription);
+				accordionGroup.add(deleteButton);
 
 				// add to the list
 				addedResources.add(justAddedResource);
 
 				// add to the panel
-				addResourcesPanel.add(associatedButton);
-				
-				// add handler to swap tab on click
-				associatedButton.addClickHandler(new ClickHandler() {
+				addResourcesPanel.add(accordion);
+			}
+		});
 
-					@Override
-					public void onClick(ClickEvent event) {
+		// when the user wants to delete a resource
+		eventBus.addHandler(DeleteResourceEvent.TYPE, new DeleteResourceEventHandler() {
 
-						// TODO show information below this link and swap panel 
+			@Override
+			public void onDeletedResource(DeleteResourceEvent deleteResourceEvent) {
 
+				// to delete
+				ResourceBean toDelete = deleteResourceEvent.getResource();
+
+				// find it
+				for(int i = 0; i < addedResources.size(); i++){
+
+					if(addedResources.get(i).getId().equals(toDelete.getId())){
+						
+						// get the associated widget and remove it
+						final Widget widget = addResourcesPanel.getWidget(i);
+
+						// remote call to remove it from the dataset
+						ckanServices.deleteResourceFromDataset(toDelete, owner, new AsyncCallback<Boolean>() {
+
+							@Override
+							public void onSuccess(Boolean result) {
+								
+								if(result)
+									widget.removeFromParent();
+							}
+
+							@Override
+							public void onFailure(Throwable caught) {
+
+							}
+						});
+						
+						break;
 					}
-				});
-
+				}
+				
+				// remove from the list
+				addedResources.remove(toDelete);
 			}
 		});
 	}
-
-	/**
-	 * Rebuild the summary list
-	 */
-	protected void rebuildSummary() {
-		
-		addResourcesPanel.clear();
-		
-		for (final ResourceBean resource : addedResources){
-			
-			Button associatedButton = new Button();
-			associatedButton.setType(ButtonType.LINK);
-			associatedButton.setText("-" + resource.getName());
-
-			// add to the list
-			addedResources.add(resource);
-
-			// add to the panel
-			addResourcesPanel.add(associatedButton);
-			
-			// add handler to swap tab on click
-			associatedButton.addClickHandler(new ClickHandler() {
-
-				@Override
-				public void onClick(ClickEvent event) {
-
-					// TODO show information below this link and swap panel 
-
-				}
-			});
-		}
-	}
 }

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/AddedResourcesSummary.ui.xml

@@ -1,11 +1,8 @@
 <!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
 <ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
 	xmlns:g="urn:import:com.google.gwt.user.client.ui">
-	<ui:style>
-	
-	</ui:style>
 	<g:HTMLPanel>
-		<h2>Added Resources</h2>
-		<g:VerticalPanel ui:field="addResourcesPanel"></g:VerticalPanel>
+		<h3>Added Resources</h3>
+		<g:VerticalPanel ui:field="addResourcesPanel" width="97%"></g:VerticalPanel>
 	</g:HTMLPanel>
 </ui:UiBinder> 

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/CreateDatasetForm.java

@@ -7,6 +7,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 
+import org.gcube.datacatalogue.ckanutillibrary.models.MetaDataBean;
 import org.gcube.portlets.user.gcubewidgets.client.elements.Span;
 import org.gcube.portlets.widgets.ckandatapublisherwidget.client.CKanPublisherService;
 import org.gcube.portlets.widgets.ckandatapublisherwidget.client.CKanPublisherServiceAsync;
@@ -33,6 +34,8 @@ import com.google.gwt.event.dom.client.ClickHandler;
 import com.google.gwt.event.dom.client.KeyCodes;
 import com.google.gwt.event.dom.client.KeyDownEvent;
 import com.google.gwt.event.shared.HandlerManager;
+import com.google.gwt.regexp.shared.MatchResult;
+import com.google.gwt.regexp.shared.RegExp;
 import com.google.gwt.uibinder.client.UiBinder;
 import com.google.gwt.uibinder.client.UiField;
 import com.google.gwt.uibinder.client.UiHandler;
@@ -47,7 +50,7 @@ import com.google.gwt.user.client.ui.Widget;
  * Edit metadata form for ckan dataset.
  * @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
  */
-public class EditMetadataForm extends Composite{
+public class CreateDatasetForm extends Composite{
 
 	/**
 	 * Create a remote service proxy to talk to the server-side ckan service.
@@ -58,7 +61,7 @@ public class EditMetadataForm extends Composite{
 			.create(EditMetadataFormUiBinder.class);
 
 	interface EditMetadataFormUiBinder extends
-	UiBinder<Widget, EditMetadataForm> {
+	UiBinder<Widget, CreateDatasetForm> {
 	}
 
 	@UiField TextBox titleTextBox;
@@ -83,12 +86,14 @@ public class EditMetadataForm extends Composite{
 	@UiField AlertBlock infoBlock;
 	@UiField AlertBlock onCreateAlertBlock;
 	@UiField VerticalPanel resourcesPanel;
+	@UiField VerticalPanel metadataPanel;
+	@UiField ListBox metadataFormatListbox;
 
 	// tab panel 
 	private TabPanel tabPanel; 
 
 	// add resource form
-	AddResourceToDataset resourceForm;
+	private AddResourceToDataset resourceForm;
 
 	// tags list
 	private List<String> tagsList = new ArrayList<String>();
@@ -108,11 +113,14 @@ public class EditMetadataForm extends Composite{
 	// the owner
 	private String owner;
 
+	// workspace request?
+	private boolean isWorkspaceRequest = false;
+
 	/**
 	 * Invoked in the most general case
 	 * @param owner
 	 */
-	public EditMetadataForm(String owner) {
+	public CreateDatasetForm(String owner) {
 		initWidget(uiBinder.createAndBindUi(this));
 
 		this.owner = owner;
@@ -144,6 +152,7 @@ public class EditMetadataForm extends Composite{
 					authorEmailTextbox.setText(bean.getAuthorEmail());
 					maintainerTextbox.setText(bean.getMaintainer());
 					maintainerEmailTextbox.setText(bean.getMaintainerEmail());
+					prepareMetadataList(receivedBean);
 
 					// set organizations
 					List<String> organizations = bean.getOrganizationList();
@@ -206,16 +215,35 @@ public class EditMetadataForm extends Composite{
 
 	}
 
+	/**
+	 * Add the items to the listbox and put data into the metadataPanel
+	 * @param receivedBean
+	 */
+	protected void prepareMetadataList(DatasetMetadataBean receivedBean) {
+		
+		List<MetaDataBean> beans = receivedBean.getMetadataList();
+		
+		for(MetaDataBean metadataBean: beans){
+			
+			//metadataFormatListbox.addItem(metadataBean.getType().getName());			
+			
+		}
+		
+	}
+
 	/**
 	 * Invoked when the workspace is used.
 	 * @param idFolderWorkspace
 	 * @param owner
 	 */
-	public EditMetadataForm(String idFolderWorkspace, String owner) {
+	public CreateDatasetForm(String idFolderWorkspace, String owner) {
 		initWidget(uiBinder.createAndBindUi(this));
 
 		this.owner = owner;
 
+		// workspace request
+		isWorkspaceRequest = true;
+
 		// bind on events
 		bind();
 
@@ -245,6 +273,7 @@ public class EditMetadataForm extends Composite{
 					authorEmailTextbox.setText(bean.getAuthorEmail());
 					maintainerTextbox.setText(bean.getMaintainer());
 					maintainerEmailTextbox.setText(bean.getMaintainerEmail());
+					prepareMetadataList(receivedBean);
 
 					// set organizations
 					List<String> organizations = bean.getOrganizationList();
@@ -364,11 +393,16 @@ public class EditMetadataForm extends Composite{
 	@UiHandler("createButton")
 	void createDatasetEvent(ClickEvent e){
 
-		// validate data TODO
+		// validate data
 		boolean areDataValid = validateData();
 
 		// Collect current data and send them to the server
-		if(areDataValid){
+		if(!areDataValid){
+
+			alertOnCreate("Please check inserted data ", AlertType.ERROR);
+
+		}
+		else{
 
 			String title = titleTextBox.getValue();
 			String description = descriptionTextarea.getText();
@@ -413,10 +447,9 @@ public class EditMetadataForm extends Composite{
 			createButton.setEnabled(false);
 			resetButton.setEnabled(false);
 
-			onCreateAlertBlock.setText("Trying to create dataset, please wait");
-			onCreateAlertBlock.setVisible(true);
+			alertOnCreate("Trying to create dataset, please wait", AlertType.INFO);
 
-			ckanServices.createCKanDataset(receivedBean, new AsyncCallback<String>() {
+			ckanServices.createCKanDataset(receivedBean, isWorkspaceRequest, new AsyncCallback<String>() {
 
 				@Override
 				public void onSuccess(final String datasetId) {
@@ -459,10 +492,10 @@ public class EditMetadataForm extends Composite{
 
 									// tab for the added resources
 									Tab addedResources = new Tab();
-									addedResources.add(new AddedResourcesSummary(eventBus));
+									addedResources.add(new AddedResourcesSummary(eventBus, owner));
 									addedResources.setHeading("Added Resource");
 									tabPanel.add(addedResources);
-									
+
 									// add tabs to resources panel
 									tabPanel.selectTab(0);
 									resourcesPanel.add(tabPanel);
@@ -518,14 +551,38 @@ public class EditMetadataForm extends Composite{
 
 	/**
 	 * Validate data
-	 * @return true on success
+	 * @return true on success, false otherwise
 	 */
 	private boolean validateData() {
+		
+		boolean correct = true;
 
-		// TODO 
-		return true;
+		if(titleTextBox.getText().isEmpty())
+			correct = false;
+		
+		// email reg expression
+		String regexMail = "\\b[\\w.%-]+@[-.\\w]+\\.[A-Za-z]{2,4}\\b";
+		
+		correct &= validateByRegExpression(maintainerEmailTextbox.getText(), regexMail);
+		
+		// name reg expression
+		String regexName = "^[a-zA-Z\\s]+";
+		
+		correct &= validateByRegExpression(maintainerTextbox.getText(), regexName);
+
+		return correct;
 	}
 
+	private boolean validateByRegExpression(String textToValidate, String regex){
+		
+		RegExp pattern = RegExp.compile(regex);
+		MatchResult matcher = pattern.exec(textToValidate);
+		
+		GWT.log("Matcher is " + matcher);
+		
+		return (matcher != null);
+	}
+	
 	@UiHandler("resetButton")
 	void resetFormEvent(ClickEvent e){
 
@@ -533,8 +590,6 @@ public class EditMetadataForm extends Composite{
 		titleTextBox.setText("");
 		descriptionTextarea.setText("");
 		versionTextbox.setText("");
-		authorTextbox.setText("");
-		authorEmailTextbox.setText("");
 		maintainerTextbox.setText("");
 		maintainerEmailTextbox.setText("");
 		removeTags();
@@ -548,14 +603,14 @@ public class EditMetadataForm extends Composite{
 	}
 
 	/**
-	 * Disable dataset editable fields
+	 * Disable dataset editable fields once the dataset has been
+	 * Successfully created.
 	 */
 	protected void disableDatasetFields() {
+
 		titleTextBox.setEnabled(false);
 		descriptionTextarea.setEnabled(false);
 		versionTextbox.setEnabled(false);
-		authorTextbox.setEnabled(false);
-		authorEmailTextbox.setEnabled(false);
 		maintainerTextbox.setEnabled(false);
 		maintainerEmailTextbox.setEnabled(false);
 		visibilityListbox.setEnabled(false);
@@ -563,6 +618,17 @@ public class EditMetadataForm extends Composite{
 		licenseListbox.setEnabled(false);
 		organizationsListbox.setEnabled(false);
 		addCustomFieldButton.setEnabled(false);
+
+		//	freeze tags
+		for(int i = 0; i < tagsList.size(); i++){
+
+			// get tag widget
+			ListItem tagWidget = (ListItem)tagsPanel.getWidget(i);
+
+			// get the "x" span
+			tagWidget.getWidget(1).removeFromParent();
+
+		}
 	}
 
 	/**
@@ -604,19 +670,19 @@ public class EditMetadataForm extends Composite{
 			final String value = itemBox.getValue();
 			final ListItem displayItem = new ListItem();
 			displayItem.setStyleName("tag-style");
-			Span p = new Span(itemBox.getValue());
+			Span tagText = new Span(itemBox.getValue());
 
-			Span span = new Span("x");
-			span.setTitle("Remove this tag");
-			span.addClickHandler(new ClickHandler() {
+			Span tagRemove = new Span("x");
+			tagRemove.setTitle("Remove this tag");
+			tagRemove.addClickHandler(new ClickHandler() {
 				public void onClick(ClickEvent clickEvent) {
-					removeListItem(displayItem, value);
+					removeTag(displayItem, value);
 				}
 			});
 
-			span.setStyleName("tag-style-x");
-			displayItem.add(p);
-			displayItem.add(span);
+			tagRemove.setStyleName("tag-style-x");
+			displayItem.add(tagText);
+			displayItem.add(tagRemove);
 			itemBox.setValue("");
 			itemBox.setFocus(true);
 			tagsPanel.add(displayItem);
@@ -640,7 +706,7 @@ public class EditMetadataForm extends Composite{
 		span.setTitle("Remove this tag");
 		span.addClickHandler(new ClickHandler() {
 			public void onClick(ClickEvent clickEvent) {
-				removeListItem(displayItem, tag);
+				removeTag(displayItem, tag);
 			}
 		});
 
@@ -655,10 +721,11 @@ public class EditMetadataForm extends Composite{
 	 * Remove a tag from the list
 	 * @param displayItem
 	 */
-	private void removeListItem(ListItem displayItem, String value) {
-		GWT.log("Removing: " + displayItem.getWidget(0).getElement().getInnerHTML(), null);
+	private void removeTag(ListItem displayItem, String value) {
+
 		tagsList.remove(value);
 		tagsPanel.remove(displayItem);
+
 	}
 
 	/**

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/CreateDatasetForm.ui.xml

@@ -33,15 +33,6 @@
 	.tagsPanelStyle {
 		display: inline-block;
 	}
-	
-	.info-markdown {
-		width: 95%;
-		background-color: #ebebeb;
-		border-bottom: 1px thin;
-		border-left: 1px thin;
-		border-right: 1px thin;
-		padding: 3px;
-	}
 	</ui:style>
 	<g:HTMLPanel>
 		<b:Form type="HORIZONTAL" styleName="{style.form-main-style}"
@@ -91,25 +82,6 @@
 						<b:TextArea placeholder="eg. Some useful notes about the data"
 							alternateSize="LARGE" b:id="description" title="Dataset description"
 							ui:field="descriptionTextarea"></b:TextArea>
-						<b:Paragraph styleName="{style.info-markdown}">
-							You can use
-							<b:Popover html="true"
-								text="__Bold text__ or _italic text_
-                          		# title
-								## secondary title
-								### etc
-								
-								* list
-								* of
-								* items
-								
-								http://auto.link.ed/ 
-								
-								Please note: HTML tags are stripped out for security reasons"
-								heading="Markdown formatting short guide">
-								<b:Button type="LINK">Markdown formatting</b:Button>
-							</b:Popover>
-						</b:Paragraph>
 					</b:Controls>
 				</b:ControlGroup>
 
@@ -188,7 +160,7 @@
 					</b:ControlLabel>
 					<b:Controls>
 						<b:TextBox alternateSize="LARGE" placeholder="Joe Bloggs"
-							b:id="author" title="Dataset author" ui:field="authorTextbox" />
+							enabled="false" b:id="author" title="Dataset author" ui:field="authorTextbox" />
 					</b:Controls>
 				</b:ControlGroup>
 
@@ -199,7 +171,7 @@
 					</b:ControlLabel>
 					<b:Controls>
 						<b:TextBox alternateSize="LARGE" placeholder="joe.bloggs@example.com"
-							b:id="email" title="Dataset author" ui:field="authorEmailTextbox" />
+							enabled="false" b:id="email" title="Dataset author" ui:field="authorEmailTextbox" />
 					</b:Controls>
 				</b:ControlGroup>
 
@@ -223,6 +195,20 @@
 					</b:Controls>
 				</b:ControlGroup>
 
+				<b:ControlGroup>
+					<b:ControlLabel for="metadataFormat" title="Metadata format">Metadata
+						Format:</b:ControlLabel>
+					<b:Controls>
+						<b:ListBox b:id="metadataFormat" alternateSize="LARGE"
+							title="The metadata format to be used" ui:field="metadataFormatListbox">
+						</b:ListBox>
+					</b:Controls>
+				</b:ControlGroup>
+
+				<!-- Here will be placed the metadata formats -->
+				<g:VerticalPanel ui:field="metadataPanel" visible="false"
+					width="100%"></g:VerticalPanel>
+
 				<!-- Custom fields can be dinamically added -->
 				<b:ControlGroup ui:field="customFields">
 					<b:ControlLabel>Custom Field(s):</b:ControlLabel>
@@ -236,7 +222,8 @@
 							dataset.
 							You have to choose a unique key for the field and a value
 							for this. You
-							can remove them at any time.
+							can remove them at any time until you create the
+							dataset.
 						</span>
 						<b:Button icon="PLUS_SIGN" title="Add Custom Field"
 							ui:field="addCustomFieldButton"></b:Button>
@@ -261,12 +248,13 @@
 				<b:AlertBlock type="INFO" close="false" animation="true"
 					visible="false" ui:field="onCreateAlertBlock" styleName="{style.block-alert-style}">
 				</b:AlertBlock>
-				
-				<b:Button title="Add resources to the just created dataset" visible="false"
-				 ui:field="addResourcesButton">Add Resources</b:Button>
+
+				<b:Button title="Add resources to the just created dataset"
+					type="PRIMARY" visible="false" ui:field="addResourcesButton">Add Resources</b:Button>
 
 				<!-- Here will be placed the form for the resources -->
-				<g:VerticalPanel ui:field="resourcesPanel" visible="false" width="100%"></g:VerticalPanel>
+				<g:VerticalPanel ui:field="resourcesPanel" visible="false"
+					width="100%"></g:VerticalPanel>
 
 				<b:Button title="Create dataset" ui:field="createButton"
 					type="PRIMARY" block="true">Create</b:Button>

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/server/CKANPublisherServicesImpl.java

@@ -10,6 +10,10 @@ import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 
+import net.htmlparser.jericho.Renderer;
+import net.htmlparser.jericho.Segment;
+import net.htmlparser.jericho.Source;
+
 import org.gcube.common.homelibrary.home.HomeLibrary;
 import org.gcube.common.homelibrary.home.exceptions.InternalErrorException;
 import org.gcube.common.homelibrary.home.workspace.Workspace;
@@ -18,6 +22,7 @@ import org.gcube.common.homelibrary.home.workspace.folder.FolderItem;
 import org.gcube.common.homelibrary.home.workspace.folder.items.GCubeItem;
 import org.gcube.common.scope.api.ScopeProvider;
 import org.gcube.datacatalogue.ckanutillibrary.CKanUtilsFactory;
+import org.gcube.datacatalogue.ckanutillibrary.models.MetaDataBean;
 import org.gcube.portlets.widgets.ckandatapublisherwidget.client.CKanPublisherService;
 import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.DatasetMetadataBean;
 import org.gcube.portlets.widgets.ckandatapublisherwidget.shared.LicensesBean;
@@ -149,6 +154,27 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 
 		return null;
 	}
+	
+	/**
+	 * Retrieve the list of metadata beans
+	 * @return
+	 */
+	private List<MetaDataBean> getMetaDataBeanList(){
+		
+		logger.debug("Request for metadata beans list");
+		
+		try{
+			
+			String currentScope = getCurrentScope();
+			return CKanUtilsFactory.getInstance().getCkanUtilsForScope(currentScope).getMetadataList();
+			
+		}catch(Exception e){
+			logger.error("Unable to retrieve metadata", e);
+		}
+		
+		return null;
+		
+	}
 
 	@Override
 	public LicensesBean getLicenses() {
@@ -187,7 +213,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 				bean = new DatasetMetadataBean();
 
 				bean.setId(folderId);
-				bean.setOwnerFolderInWorkspace(owner);
+				bean.setOwnerIdentifier(owner);
 				bean.setVersion(1);
 				bean.setAuthor(userOwner.getFullname());
 				bean.setAuthorEmail(userOwner.getEmail());
@@ -195,6 +221,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 				bean.setMaintainerEmail(userOwner.getEmail());
 				bean.setOrganizationList(getUserOrganizationsList(owner));
 
+				// if the request comes from the workspace
 				if(folderId != null && !folderId.isEmpty()){
 
 
@@ -222,6 +249,11 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 					}
 
 					bean.setResourcesIds(childrenIds);
+					
+					// retrieve the metadata
+					List<MetaDataBean> metadataBeans = getMetaDataBeanList();
+					bean.setMetadataList(metadataBeans);
+					
 				}
 
 			}catch(Exception e){
@@ -241,7 +273,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 				bean.setMaintainer("Costantino Perciante");
 				bean.setMaintainerEmail("costantino.perciante@isti.cnr.it");
 				bean.setOrganizationList(getUserOrganizationsList(owner));
-				bean.setOwnerFolderInWorkspace(owner);
+				bean.setOwnerIdentifier(owner);
 
 				if(folderId != null && !folderId.isEmpty()){
 					ScopeProvider.instance.set("/gcube");
@@ -267,6 +299,11 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 
 					bean.setResourcesIds(childrenIds);
 				}
+				
+				// retrieve the metadata
+				List<MetaDataBean> metadataBeans = getMetaDataBeanList();
+				bean.setMetadataList(metadataBeans);
+				
 			}catch(Exception e){
 				logger.error("Error while building bean into dev mode", e);
 			}
@@ -302,13 +339,13 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 	}
 
 	@Override
-	public String createCKanDataset(DatasetMetadataBean toCreate) {
+	public String createCKanDataset(DatasetMetadataBean toCreate, boolean isWorkspaceRequest) {
 
 		// retrieve ckan's catalog url
 		String ckanPortalUrl = getCatalogueUrl();
 
-		// retrieve the owner of the original folder into the workspace
-		String owner = toCreate.getOwnerFolderInWorkspace();
+		// retrieve the owner identifier
+		String owner = toCreate.getOwnerIdentifier();
 
 		// retrieve the api key for this user
 		String apiKey = getCKANApikeyFromUser(owner);
@@ -335,7 +372,16 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 		dataset.setMaintainer(toCreate.getMaintainer());
 		dataset.setMaintainerEmail(toCreate.getMaintainerEmail());
 		dataset.setVersion(String.valueOf(toCreate.getVersion()));
-		dataset.setNotes(toCreate.getDescription());
+
+		// description must be escaped
+		Source description = new Source(toCreate.getDescription());
+		Segment htmlSeg = new Segment(description, 0, description.length());
+		Renderer htmlRend = new Renderer(htmlSeg);
+		dataset.setNotes(htmlRend.toString());
+
+		logger.debug("Description (escaped is ) " + htmlRend.toString());
+
+		// visibility TODO
 		dataset.setOpen(toCreate.getVisibility());
 
 		// iterate over the licenses to find the id of the chosen one
@@ -374,7 +420,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 		}
 
 		// check if we need to add the resources
-		if(toCreate.isAddResources()){
+		if(toCreate.isAddResources() && isWorkspaceRequest){
 
 			logger.debug("We need to add resources to the dataset");
 
@@ -384,7 +430,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 				Workspace ws = HomeLibrary
 						.getHomeManagerFactory()
 						.getHomeManager()
-						.getHome(toCreate.getOwnerFolderInWorkspace()).getWorkspace();
+						.getHome(toCreate.getOwnerIdentifier()).getWorkspace();
 
 				List<CkanResource> resources = new ArrayList<CkanResource>();
 
@@ -420,8 +466,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 		}catch(Exception e){
 
 			// try to update
-			logger.error("Error while creating the dataset, probably it already exists. Trying to update it..", e);
-			res = client.updateDataset(dataset);
+			logger.error("Error while creating the dataset, probably it already exists.", e);
 
 		}
 
@@ -459,7 +504,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 			HttpURLConnection.setFollowRedirects(true);
 			HttpURLConnection con = (HttpURLConnection) new URL(URLName).openConnection();
 			con.setRequestMethod("HEAD");
-			logger.info("Return code is " + con.getResponseCode());
+			logger.debug("Return code is " + con.getResponseCode());
 			return (con.getResponseCode() == HttpURLConnection.HTTP_OK);
 		}
 		catch (Exception e) {
@@ -469,45 +514,81 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 	}
 
 	@Override
-	public boolean addResourceToDataset(ResourceBean resourceBean, String datasetId, String owner) {
-		
-		logger.info("Incoming request for creating new resource for dataset with id " + datasetId);
-		logger.info("Owner is " + owner + " and resource is " + resourceBean);
-		
+	public ResourceBean addResourceToDataset(ResourceBean resourceBean, String datasetId, String owner) {
+
+		logger.debug("Incoming request for creating new resource for dataset with id " + datasetId);
+		logger.debug("Owner is " + owner + " and resource is " + resourceBean);
+
 		// of course, if it exists
 		if(exists(resourceBean.getUrl())){
-			
+
 			try{
-			// retrieve ckan's catalog url
-			String ckanPortalUrl = getCatalogueUrl();
-			
-			// retrieve the api key for this user
-			String apiKey = getCKANApikeyFromUser(owner);
-			
-			CkanResource resource = new CkanResource(ckanPortalUrl, datasetId);
-			resource.setName(resourceBean.getName());
-			resource.setDescription(resourceBean.getDescription());
-			resource.setUrl(resourceBean.getUrl());
-			resource.setOwner(owner);
-			
-			// Checked client
-			CheckedCkanClient client = new CheckedCkanClient(ckanPortalUrl, apiKey);
-			CkanResource createdRes = client.createResource(resource);
-			
-			if(createdRes != null){
-				
-				logger.info("Resource  " + createdRes.getName() + " is now available");
-				return true;
-				
-			}
-			
+				// retrieve ckan's catalog url
+				String ckanPortalUrl = getCatalogueUrl();
+
+				// retrieve the api key for this user
+				String apiKey = getCKANApikeyFromUser(owner);
+
+				CkanResource resource = new CkanResource(ckanPortalUrl, datasetId);
+				resource.setName(resourceBean.getName());
+
+				// escape description
+				Source description = new Source(resourceBean.getDescription());
+				Segment htmlSeg = new Segment(description, 0, description.length());
+				Renderer htmlRend = new Renderer(htmlSeg);
+
+				resource.setDescription(htmlRend.toString());
+				resource.setUrl(resourceBean.getUrl());
+				resource.setOwner(owner);
+
+				// Checked client
+				CheckedCkanClient client = new CheckedCkanClient(ckanPortalUrl, apiKey);
+				CkanResource createdRes = client.createResource(resource);
+
+				if(createdRes != null){
+
+					logger.debug("Resource  " + createdRes.getName() + " is now available");
+					
+					// set its id and turn it to the client
+					resourceBean.setId(createdRes.getId());
+					return resourceBean;
+
+				}
+
 			}catch(Exception e){
 				logger.error("Unable to create new resource", e);
 			}
 		}
-		
-		logger.info("No resource created");
-		
+
+		logger.debug("No resource created");
+
+		return null;
+	}
+
+	@Override
+	public boolean deleteResourceFromDataset(ResourceBean resource,
+			String owner) {
+		logger.debug("Request for deleting resource " + resource);
+
+		try{
+			
+			// retrieve ckan's catalog url
+			String ckanPortalUrl = getCatalogueUrl();
+
+			// retrieve the api key for this user
+			String apiKey = getCKANApikeyFromUser(owner);
+
+			// Checked client
+			CheckedCkanClient client = new CheckedCkanClient(ckanPortalUrl, apiKey);
+			client.deleteResource(resource.getId());
+
+			return true;
+			
+		}catch(Exception e){
+			logger.error("Unable to delete such resource", e);
+		}
+
 		return false;
 	}
+	
 }

src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/shared/DatasetMetadataBean.java

@@ -4,6 +4,8 @@ import java.io.Serializable;
 import java.util.List;
 import java.util.Map;
 
+import org.gcube.datacatalogue.ckanutillibrary.models.MetaDataBean;
+
 /**
  * This bean will contain during ckan metadata creation the following information
  * (related to the workspace folder that represents a dataset)
@@ -19,6 +21,7 @@ import java.util.Map;
  * <li> custom fields -> gcube items <key, value> couple
  * <li> organizationsList -> list of organizations to which the user belong (and in which 
  * he wants to publish)
+ * <li> list of metadata, that is custom fields per vre
  * </ul>
  * @author Costantino Perciante at ISTI-CNR 
  * (costantino.perciante@isti.cnr.it)
@@ -39,11 +42,12 @@ public class DatasetMetadataBean implements Serializable {
 	private String authorEmail; // folder's email owner
 	private String maintainer;
 	private String maintainerEmail;
-	private String ownerFolderInWorkspace; // owner of the folder into the workspace
+	private String ownerIdentifier; // owner of the folder into the workspace (e.g., andrea.rossi)
 	private List<String> organizationList; // list of organization in which the user is present and could create the dataset
 	private String selectedOrganization;
 	private List<String> resourcesIds; // in case of workspace, this is the list of children's ids
 	private boolean addResources; // if true, add these files as resources to the dataset
+	private List<MetaDataBean> metadataList;
 
 	public DatasetMetadataBean(){
 		super();
@@ -63,17 +67,21 @@ public class DatasetMetadataBean implements Serializable {
 	 * @param authorEmail
 	 * @param maintainer
 	 * @param maintainerEmail
-	 * @param ownerFolderInWorkspace
+	 * @param ownerIdentifier
 	 * @param organizationList
 	 * @param selectedOrganization
+	 * @param resourcesIds
+	 * @param addResources
+	 * @param metadataList
 	 */
 	public DatasetMetadataBean(String id, String title, String description,
 			Map<String, String> customFields, List<String> tags,
-			String license, boolean visibility,
-			String source, long version, String author, String authorEmail,
-			String maintainer, String maintainerEmail,
-			String ownerFolderInWorkspace, List<String> organizationList,
-			String selectedOrganization) {
+			String license, boolean visibility, String source, long version,
+			String author, String authorEmail, String maintainer,
+			String maintainerEmail, String ownerIdentifier,
+			List<String> organizationList, String selectedOrganization,
+			List<String> resourcesIds, boolean addResources,
+			List<MetaDataBean> metadataList) {
 		super();
 		this.id = id;
 		this.title = title;
@@ -88,9 +96,20 @@ public class DatasetMetadataBean implements Serializable {
 		this.authorEmail = authorEmail;
 		this.maintainer = maintainer;
 		this.maintainerEmail = maintainerEmail;
-		this.ownerFolderInWorkspace = ownerFolderInWorkspace;
+		this.ownerIdentifier = ownerIdentifier;
 		this.organizationList = organizationList;
 		this.selectedOrganization = selectedOrganization;
+		this.resourcesIds = resourcesIds;
+		this.addResources = addResources;
+		this.metadataList = metadataList;
+	}
+
+	public List<MetaDataBean> getMetadataList() {
+		return metadataList;
+	}
+
+	public void setMetadataList(List<MetaDataBean> metadataList) {
+		this.metadataList = metadataList;
 	}
 
 	public String getId() {
@@ -101,12 +120,12 @@ public class DatasetMetadataBean implements Serializable {
 		this.id = id;
 	}
 
-	public void setOwnerFolderInWorkspace(String ownerFolderInWorkspace) {
-		this.ownerFolderInWorkspace = ownerFolderInWorkspace;
+	public String getOwnerIdentifier() {
+		return ownerIdentifier;
 	}
 
-	public String getOwnerFolderInWorkspace(){
-		return ownerFolderInWorkspace;
+	public void setOwnerIdentifier(String ownerIdentifier) {
+		this.ownerIdentifier = ownerIdentifier;
 	}
 
 	public String getTitle() {
@@ -242,14 +261,14 @@ public class DatasetMetadataBean implements Serializable {
 		return "DatasetMetadataBean [id=" + id + ", title=" + title
 				+ ", description=" + description + ", customFields="
 				+ customFields + ", tags=" + tags + ", license=" + license
-				+ ", visibility=" + visibility
-				+ ", source=" + source + ", version=" + version + ", author="
-				+ author + ", authorEmail=" + authorEmail + ", maintainer="
-				+ maintainer + ", maintainerEmail=" + maintainerEmail
-				+ ", ownerFolderInWorkspace=" + ownerFolderInWorkspace
-				+ ", organizationList=" + organizationList
+				+ ", visibility=" + visibility + ", source=" + source
+				+ ", version=" + version + ", author=" + author
+				+ ", authorEmail=" + authorEmail + ", maintainer=" + maintainer
+				+ ", maintainerEmail=" + maintainerEmail + ", ownerIdentifier="
+				+ ownerIdentifier + ", organizationList=" + organizationList
 				+ ", selectedOrganization=" + selectedOrganization
 				+ ", resourcesIds=" + resourcesIds + ", addResources="
-				+ addResources + "]";
+				+ addResources + ", metadataList=" + metadataList + "]";
 	}
+
 }

src/main/resources/org/gcube/portlets/widgets/ckandatapublisherwidget/CKanMetadataPublisher.gwt.xml

@@ -10,7 +10,7 @@
 	<set-property name="bootstrap.responsiveDesign" value="true" />
 
 	<inherits name='org.gcube.portlets.user.gcubewidgets.WidgetFactory' />
-
+	
 	<!-- Specify the app entry point class. -->
 	<entry-point
 		class='org.gcube.portlets.widgets.ckandatapublisherwidget.client.CKanMetadataPublisher' />

src/main/webapp/CKanMetadataPublisher.html

@@ -5,8 +5,6 @@
 <link type="text/css" rel="stylesheet" href="CKanMetadataPublisher.css">
 <script type="text/javascript"
 	src="CKanMetadataPublisher/CKanMetadataPublisher.nocache.js"></script>
-<script type="text/javascript"
-	src="/js/showdown.js"></script>
 </head>
 <body>
 

src/main/webapp/js/showdown.js

@@ -1,325 +0,0 @@
-/**
- * Created by Tivie on 06-01-2015.
- */
-
-// Private properties
-var showdown = {},
-    parsers = {},
-    extensions = {},
-    globalOptions = getDefaultOpts(true),
-    flavor = {
-      github: {
-        omitExtraWLInCodeBlocks:   true,
-        prefixHeaderId:            'user-content-',
-        simplifiedAutoLink:        true,
-        literalMidWordUnderscores: true,
-        strikethrough:             true,
-        tables:                    true,
-        tablesHeaderId:            true,
-        ghCodeBlocks:              true,
-        tasklists:                 true
-      },
-      vanilla: getDefaultOpts(true)
-    };
-
-/**
- * helper namespace
- * @type {{}}
- */
-showdown.helper = {};
-
-/**
- * TODO LEGACY SUPPORT CODE
- * @type {{}}
- */
-showdown.extensions = {};
-
-/**
- * Set a global option
- * @static
- * @param {string} key
- * @param {*} value
- * @returns {showdown}
- */
-showdown.setOption = function (key, value) {
-  'use strict';
-  globalOptions[key] = value;
-  return this;
-};
-
-/**
- * Get a global option
- * @static
- * @param {string} key
- * @returns {*}
- */
-showdown.getOption = function (key) {
-  'use strict';
-  return globalOptions[key];
-};
-
-/**
- * Get the global options
- * @static
- * @returns {{}}
- */
-showdown.getOptions = function () {
-  'use strict';
-  return globalOptions;
-};
-
-/**
- * Reset global options to the default values
- * @static
- */
-showdown.resetOptions = function () {
-  'use strict';
-  globalOptions = getDefaultOpts(true);
-};
-
-/**
- * Set the flavor showdown should use as default
- * @param {string} name
- */
-showdown.setFlavor = function (name) {
-  'use strict';
-  if (flavor.hasOwnProperty(name)) {
-    var preset = flavor[name];
-    for (var option in preset) {
-      if (preset.hasOwnProperty(option)) {
-        globalOptions[option] = preset[option];
-      }
-    }
-  }
-};
-
-/**
- * Get the default options
- * @static
- * @param {boolean} [simple=true]
- * @returns {{}}
- */
-showdown.getDefaultOptions = function (simple) {
-  'use strict';
-  return getDefaultOpts(simple);
-};
-
-/**
- * Get or set a subParser
- *
- * subParser(name)       - Get a registered subParser
- * subParser(name, func) - Register a subParser
- * @static
- * @param {string} name
- * @param {function} [func]
- * @returns {*}
- */
-showdown.subParser = function (name, func) {
-  'use strict';
-  if (showdown.helper.isString(name)) {
-    if (typeof func !== 'undefined') {
-      parsers[name] = func;
-    } else {
-      if (parsers.hasOwnProperty(name)) {
-        return parsers[name];
-      } else {
-        throw Error('SubParser named ' + name + ' not registered!');
-      }
-    }
-  }
-};
-
-/**
- * Gets or registers an extension
- * @static
- * @param {string} name
- * @param {object|function=} ext
- * @returns {*}
- */
-showdown.extension = function (name, ext) {
-  'use strict';
-
-  if (!showdown.helper.isString(name)) {
-    throw Error('Extension \'name\' must be a string');
-  }
-
-  name = showdown.helper.stdExtName(name);
-
-  // Getter
-  if (showdown.helper.isUndefined(ext)) {
-    if (!extensions.hasOwnProperty(name)) {
-      throw Error('Extension named ' + name + ' is not registered!');
-    }
-    return extensions[name];
-
-    // Setter
-  } else {
-    // Expand extension if it's wrapped in a function
-    if (typeof ext === 'function') {
-      ext = ext();
-    }
-
-    // Ensure extension is an array
-    if (!showdown.helper.isArray(ext)) {
-      ext = [ext];
-    }
-
-    var validExtension = validate(ext, name);
-
-    if (validExtension.valid) {
-      extensions[name] = ext;
-    } else {
-      throw Error(validExtension.error);
-    }
-  }
-};
-
-/**
- * Gets all extensions registered
- * @returns {{}}
- */
-showdown.getAllExtensions = function () {
-  'use strict';
-  return extensions;
-};
-
-/**
- * Remove an extension
- * @param {string} name
- */
-showdown.removeExtension = function (name) {
-  'use strict';
-  delete extensions[name];
-};
-
-/**
- * Removes all extensions
- */
-showdown.resetExtensions = function () {
-  'use strict';
-  extensions = {};
-};
-
-/**
- * Validate extension
- * @param {array} extension
- * @param {string} name
- * @returns {{valid: boolean, error: string}}
- */
-function validate(extension, name) {
-  'use strict';
-
-  var errMsg = (name) ? 'Error in ' + name + ' extension->' : 'Error in unnamed extension',
-    ret = {
-      valid: true,
-      error: ''
-    };
-
-  if (!showdown.helper.isArray(extension)) {
-    extension = [extension];
-  }
-
-  for (var i = 0; i < extension.length; ++i) {
-    var baseMsg = errMsg + ' sub-extension ' + i + ': ',
-        ext = extension[i];
-    if (typeof ext !== 'object') {
-      ret.valid = false;
-      ret.error = baseMsg + 'must be an object, but ' + typeof ext + ' given';
-      return ret;
-    }
-
-    if (!showdown.helper.isString(ext.type)) {
-      ret.valid = false;
-      ret.error = baseMsg + 'property "type" must be a string, but ' + typeof ext.type + ' given';
-      return ret;
-    }
-
-    var type = ext.type = ext.type.toLowerCase();
-
-    // normalize extension type
-    if (type === 'language') {
-      type = ext.type = 'lang';
-    }
-
-    if (type === 'html') {
-      type = ext.type = 'output';
-    }
-
-    if (type !== 'lang' && type !== 'output' && type !== 'listener') {
-      ret.valid = false;
-      ret.error = baseMsg + 'type ' + type + ' is not recognized. Valid values: "lang/language", "output/html" or "listener"';
-      return ret;
-    }
-
-    if (type === 'listener') {
-      if (showdown.helper.isUndefined(ext.listeners)) {
-        ret.valid = false;
-        ret.error = baseMsg + '. Extensions of type "listener" must have a property called "listeners"';
-        return ret;
-      }
-    } else {
-      if (showdown.helper.isUndefined(ext.filter) && showdown.helper.isUndefined(ext.regex)) {
-        ret.valid = false;
-        ret.error = baseMsg + type + ' extensions must define either a "regex" property or a "filter" method';
-        return ret;
-      }
-    }
-
-    if (ext.listeners) {
-      if (typeof ext.listeners !== 'object') {
-        ret.valid = false;
-        ret.error = baseMsg + '"listeners" property must be an object but ' + typeof ext.listeners + ' given';
-        return ret;
-      }
-      for (var ln in ext.listeners) {
-        if (ext.listeners.hasOwnProperty(ln)) {
-          if (typeof ext.listeners[ln] !== 'function') {
-            ret.valid = false;
-            ret.error = baseMsg + '"listeners" property must be an hash of [event name]: [callback]. listeners.' + ln +
-              ' must be a function but ' + typeof ext.listeners[ln] + ' given';
-            return ret;
-          }
-        }
-      }
-    }
-
-    if (ext.filter) {
-      if (typeof ext.filter !== 'function') {
-        ret.valid = false;
-        ret.error = baseMsg + '"filter" must be a function, but ' + typeof ext.filter + ' given';
-        return ret;
-      }
-    } else if (ext.regex) {
-      if (showdown.helper.isString(ext.regex)) {
-        ext.regex = new RegExp(ext.regex, 'g');
-      }
-      if (!ext.regex instanceof RegExp) {
-        ret.valid = false;
-        ret.error = baseMsg + '"regex" property must either be a string or a RegExp object, but ' + typeof ext.regex + ' given';
-        return ret;
-      }
-      if (showdown.helper.isUndefined(ext.replace)) {
-        ret.valid = false;
-        ret.error = baseMsg + '"regex" extensions must implement a replace string or function';
-        return ret;
-      }
-    }
-  }
-  return ret;
-}
-
-/**
- * Validate extension
- * @param {object} ext
- * @returns {boolean}
- */
-showdown.validateExtension = function (ext) {
-  'use strict';
-
-  var validateExtension = validate(ext, null);
-  if (!validateExtension.valid) {
-    console.warn(validateExtension.error);
-    return false;
-  }
-  return true;
-};