78 lines
2.5 KiB
Java
78 lines
2.5 KiB
Java
package org.gcube.portlets.widgets.dataminermanagerwidget.client.workspace;
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import org.gcube.data.analysis.dataminermanagercl.shared.workspace.ItemDescription;
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import org.gcube.portal.clientcontext.client.GCubeClientContext;
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import org.gcube.portlets.widgets.dataminermanagerwidget.client.common.EventBusProvider;
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import org.gcube.portlets.widgets.dataminermanagerwidget.client.events.SessionExpiredEvent;
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import org.gcube.portlets.widgets.dataminermanagerwidget.client.rpc.DataMinerPortletServiceAsync;
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import org.gcube.portlets.widgets.dataminermanagerwidget.client.util.UtilsGXT3;
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import org.gcube.portlets.widgets.dataminermanagerwidget.shared.Constants;
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import org.gcube.portlets.widgets.dataminermanagerwidget.shared.exception.SessionExpiredServiceException;
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import com.allen_sauer.gwt.log.client.Log;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.http.client.URL;
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import com.google.gwt.user.client.Window;
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import com.google.gwt.user.client.rpc.AsyncCallback;
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/**
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*
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* @author Giancarlo Panichi
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*
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*
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*/
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public class DownloadWidget {
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public DownloadWidget() {
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}
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public void download(String itemId) {
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DataMinerPortletServiceAsync.INSTANCE.getItemDescription(itemId, new AsyncCallback<ItemDescription>() {
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@Override
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public void onFailure(Throwable caught) {
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if (caught instanceof SessionExpiredServiceException) {
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EventBusProvider.INSTANCE.fireEvent(new SessionExpiredEvent());
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} else {
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Log.error("Error open item: " + caught.getLocalizedMessage(), caught);
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UtilsGXT3.alert("Error", caught.getLocalizedMessage());
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}
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caught.printStackTrace();
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}
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@Override
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public void onSuccess(ItemDescription itemDownloadInfo) {
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Log.debug("Retrieved item download info: " + itemDownloadInfo);
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requestDownload(itemDownloadInfo);
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}
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});
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}
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private void requestDownload(ItemDescription itemDescription) {
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switch (itemDescription.getType()) {
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case "AbstractFileItem":
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case "FolderItem":
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executeDownload(itemDescription);
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break;
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default:
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UtilsGXT3.info("Attention", "This item does not support download operation!");
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break;
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}
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}
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private void executeDownload(ItemDescription itemDescription) {
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StringBuilder url = new StringBuilder();
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url.append(GWT.getModuleBaseURL());
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url.append(Constants.DOWNLOAD_SERVLET + "/" + itemDescription.getName() + "?itemId=" + itemDescription.getId()
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+ "&" + Constants.CURR_GROUP_ID + "=" + GCubeClientContext.getCurrentContextId());
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Window.open(URL.encode(url.toString()), "_blank", "");
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}
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}
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