186 lines
6.6 KiB
Java
186 lines
6.6 KiB
Java
package org.gcube.portlets.user.workspace.client.util;
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import javax.annotation.Nonnull;
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import org.gcube.portlets.user.gcubewidgets.client.popup.GCubeDialog;
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import org.gcube.portlets.user.workspace.client.ConstantsExplorer;
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import org.gcube.portlets.user.workspace.client.event.FileDownloadEvent;
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import org.gcube.portlets.user.workspace.client.rpc.GWTWorkspaceService;
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import org.gcube.portlets.user.workspace.client.rpc.GWTWorkspaceServiceAsync;
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import org.gcube.portlets.user.workspace.client.view.windows.MessageBoxAlert;
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import org.realityforge.gwt.websockets.client.WebSocket;
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import org.realityforge.gwt.websockets.client.WebSocketListener;
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import com.github.gwtbootstrap.client.ui.Button;
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import com.github.gwtbootstrap.client.ui.Icon;
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import com.github.gwtbootstrap.client.ui.constants.IconType;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.dom.client.Style.Unit;
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import com.google.gwt.event.dom.client.ClickEvent;
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import com.google.gwt.event.dom.client.ClickHandler;
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import com.google.gwt.typedarrays.shared.ArrayBuffer;
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import com.google.gwt.user.client.Timer;
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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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import com.google.gwt.user.client.ui.HTML;
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import com.google.gwt.user.client.ui.HasAlignment;
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import com.google.gwt.user.client.ui.VerticalPanel;
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public class FolderDownloadDialog extends GCubeDialog implements WebSocketListener {
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private final GWTWorkspaceServiceAsync rpcWorkspaceService = (GWTWorkspaceServiceAsync) GWT.create(GWTWorkspaceService.class);
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public static final int WIDTH = 300;
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public static final int HEIGHT = 50;
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private final WebSocket webSocket = WebSocket.newWebSocketIfSupported();
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private final String username;
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private VerticalPanel topPanel = new VerticalPanel();
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private Icon loading = new Icon();
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Button close = new Button("Cancel Download");
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private HTML toShow = new HTML("Locating folder, please wait ...");
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private String webSocketURL;
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public FolderDownloadDialog(final FileDownloadEvent folder2Download, String username) {
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this.webSocket.setListener( this );
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this.username = username;
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setText("Preparing folder download");
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toShow.getElement().getStyle().setFontSize(14, Unit.PX);
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loading.setSpin(true);
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loading.setType(IconType.ROTATE_RIGHT);
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topPanel.add(toShow);
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topPanel.add(loading);
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topPanel.setPixelSize(WIDTH, HEIGHT);
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VerticalPanel bPanel = new VerticalPanel();
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bPanel.setWidth(WIDTH+"px");
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bPanel.setHorizontalAlignment(HasAlignment.ALIGN_RIGHT);
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bPanel.add(close);
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close.addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent event) {
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hide();
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}
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});
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topPanel.add(bPanel);
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add(topPanel);
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rpcWorkspaceService.getServletContextPath(Window.Location.getProtocol(), new AsyncCallback<String>() {
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@Override
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public void onSuccess(String servletContextPath) {
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webSocketURL = getWebSocketURL(servletContextPath);
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startZipping(webSocketURL, folder2Download.getItemIdentifier());
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}
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@Override
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public void onFailure(Throwable caught) {
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loading.setIcon(IconType.EXCLAMATION_SIGN);
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loading.setSpin(false);
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toShow.setText("Error trying contact the server, please refresh this page and retry");
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}
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});
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}
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private boolean startZipping(String webSocketURL, final String folderIdToZip) {
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if ( null == webSocket ) {
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Window.alert( "WebSocket not available!" );
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}
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webSocket.connect( webSocketURL );
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//allow some timet to connect
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Timer t = new Timer() {
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@Override
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public void run() {
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webSocket.send(ConstantsExplorer.DOWNLOAD_WORKSPACE_FOLDER_PROTOCOL_DO_ZIP+":"+folderIdToZip+":"+username);
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}
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};
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t.schedule(2000);
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return true;
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}
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private String getWebSocketURL(String servletContextPath) {
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String moduleBaseURL = servletContextPath;
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return moduleBaseURL.replaceFirst( "http", "ws" ) + "/" + ConstantsExplorer.DOWNLOAD_WORKSPACE_FOLDER_SERVICE;
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}
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@Override
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public void onOpen(WebSocket webSocket) { }
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@Override
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public void onClose(WebSocket webSocket, boolean wasClean, int code, String reason) { }
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@Override
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public void onMessage( @Nonnull final WebSocket webSocket, @Nonnull final String textData ) {
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switch (textData) {
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case ConstantsExplorer.DOWNLOAD_WORKSPACE_FOLDER_PROTOCOL_ZIPPING:
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toShow.setText("Compressing folder, this could take some time ...");
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break;
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case ConstantsExplorer.DOWNLOAD_WORKSPACE_FOLDER_PROTOCOL_ERROR_NOT_FOUND:
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toShow.setText("Could not locate the folder on server, please report this issue");
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loading.setIcon(IconType.EXCLAMATION_SIGN);
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loading.setSpin(false);
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webSocket.close();
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break;
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case ConstantsExplorer.DOWNLOAD_WORKSPACE_FOLDER_PROTOCOL_ERROR_DURING_COMPRESSION:
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toShow.setText("An error occurred while compressing this folder, please report this issue");
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loading.setIcon(IconType.EXCLAMATION_SIGN);
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loading.setSpin(false);
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webSocket.close();
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break;
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case ConstantsExplorer.DOWNLOAD_WORKSPACE_FOLDER_PROTOCOL_ERROR_NOT_A_FOLDER:
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toShow.setText("An error occurred, the folderId is not a valid folder, please report this issue");
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loading.setIcon(IconType.EXCLAMATION_SIGN);
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loading.setSpin(false);
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webSocket.close();
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break;
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case ConstantsExplorer.DOWNLOAD_WORKSPACE_FOLDER_PROTOCOL_ERROR_SESSION_EXPIRED:
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toShow.setText("It seems your session expired, please refresh the page and try again");
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loading.setIcon(IconType.EXCLAMATION_SIGN);
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loading.setSpin(false);
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webSocket.close();
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break;
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default:
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//the thread zipping has finished, is sending the zipped filepath on the server
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toShow.setHTML("Compressing folder success, <a title=\""+textData+"\" href=\""+textData+"\">click here</a> to download");
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loading.setIcon(IconType.OK_SIGN);
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loading.setSpin(false);
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close.setText("Close");
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this.setModal(false);
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webSocket.close();
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break;
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}
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}
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@Override
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public void onMessage( @Nonnull final WebSocket webSocket, @Nonnull final ArrayBuffer data ) {}
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@Override
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public void onError(WebSocket webSocket) {
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toShow.setText("Error contacting the server socket, please refresh this page and retry");
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}
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public AsyncCallback<WindowOpenParameter> downloadHandlerCallback = new AsyncCallback<WindowOpenParameter>() {
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@Override
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public void onFailure(Throwable caught) {
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new MessageBoxAlert("Error", caught.getMessage(), null);
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}
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@Override
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public void onSuccess(WindowOpenParameter windowOpenParam) {
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String params = "?"+windowOpenParam.getParameters();
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if(params.length()>1)
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params+="&";
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params+=ConstantsExplorer.REDIRECTONERROR+"="+windowOpenParam.isRedirectOnError();
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windowOpenParam.getBrowserWindow().setUrl(ConstantsExplorer.DOWNLOAD_WORKSPACE_FOLDER_SERVLET+params);
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}
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};
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}
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