root / web_client / src / gr / grnet / pithos / web / client / VersionsList.java @ 58777026
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/*
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* Copyright 2011 GRNET S.A. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and
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* documentation are those of the authors and should not be
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* interpreted as representing official policies, either expressed
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* or implied, of GRNET S.A.
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*/
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package gr.grnet.pithos.web.client; |
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import gr.grnet.pithos.web.client.FilePropertiesDialog.Images; |
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import gr.grnet.pithos.web.client.rest.DeleteCommand; |
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import gr.grnet.pithos.web.client.rest.GetCommand; |
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import gr.grnet.pithos.web.client.rest.PostCommand; |
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import gr.grnet.pithos.web.client.rest.RestCommand; |
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import gr.grnet.pithos.web.client.rest.RestException; |
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import gr.grnet.pithos.web.client.rest.resource.FileResource; |
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import gr.grnet.pithos.web.client.rest.resource.UserResource; |
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import gr.grnet.pithos.web.client.rest.resource.UserSearchResource; |
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import java.util.ArrayList; |
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import java.util.Collections; |
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import java.util.Comparator; |
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import java.util.Date; |
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import java.util.List; |
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import com.google.gwt.core.client.GWT; |
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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.http.client.URL; |
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import com.google.gwt.i18n.client.DateTimeFormat; |
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import com.google.gwt.user.client.DeferredCommand; |
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import com.google.gwt.user.client.Window; |
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import com.google.gwt.user.client.ui.AbstractImagePrototype; |
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import com.google.gwt.user.client.ui.Composite; |
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import com.google.gwt.user.client.ui.FlexTable; |
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import com.google.gwt.user.client.ui.HTML; |
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import com.google.gwt.user.client.ui.HasHorizontalAlignment; |
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import com.google.gwt.user.client.ui.VerticalPanel; |
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public class VersionsList extends Composite { |
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int selectedRow = -1; |
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int permissionCount = -1; |
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List<FileResource> versions = null; |
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final Images images;
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final VerticalPanel permPanel = new VerticalPanel(); |
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final FlexTable permTable = new FlexTable(); |
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FileResource toRemove = null;
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FilePropertiesDialog container; |
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public VersionsList(FilePropertiesDialog aContainer, final Images theImages, List<FileResource> theVersions) { |
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images = theImages; |
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container = aContainer; |
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versions = theVersions; |
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Collections.sort(theVersions, new Comparator<FileResource>(){ |
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@Override
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public int compare(FileResource o1, FileResource o2) { |
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return o1.getVersion().compareTo(o2.getVersion());
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} |
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}); |
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permTable.setText(0, 0, "Version"); |
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permTable.setText(0, 1, "Created"); |
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permTable.setText(0, 2, "Modified"); |
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permTable.setText(0, 3, "Size"); |
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permTable.setText(0, 4, ""); |
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permTable.setText(0, 5, ""); |
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permTable.getFlexCellFormatter().setStyleName(0, 0, "props-toplabels"); |
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permTable.getFlexCellFormatter().setStyleName(0, 1, "props-toplabels"); |
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permTable.getFlexCellFormatter().setStyleName(0, 2, "props-toplabels"); |
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permTable.getFlexCellFormatter().setStyleName(0, 3, "props-toplabels"); |
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permTable.getFlexCellFormatter().setColSpan(0, 1, 2); |
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permTable.getFlexCellFormatter().setHorizontalAlignment(0, 0, HasHorizontalAlignment.ALIGN_CENTER); |
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permTable.getFlexCellFormatter().setHorizontalAlignment(0, 1, HasHorizontalAlignment.ALIGN_CENTER); |
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permTable.getFlexCellFormatter().setHorizontalAlignment(0, 2, HasHorizontalAlignment.ALIGN_CENTER); |
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permTable.getFlexCellFormatter().setHorizontalAlignment(0, 3, HasHorizontalAlignment.ALIGN_CENTER); |
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permPanel.add(permTable); |
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permPanel.addStyleName("pithos-TabPanelBottom");
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permTable.addStyleName("pithos-permList");
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initWidget(permPanel); |
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updateTable(); |
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} |
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public void updateTable() { |
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copyListAndContinue(versions); |
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} |
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public void showVersionsTable(){ |
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int i = 1; |
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if (toRemove != null) { |
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versions.remove(toRemove); |
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toRemove = null;
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} |
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for (final FileResource dto : versions) { |
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HTML restoreVersion = new HTML("<a href='#' class='hidden-link info'><span>"+AbstractImagePrototype.create(images.restore()).getHTML()+"</span><div>Restore this Version</div></a>"); |
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restoreVersion.addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent event) { |
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restoreVersion(dto); |
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} |
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}); |
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permTable.setHTML(i, 0, "<span>" + dto.getVersion() + "</span>"); |
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permTable.setHTML(i, 1, "<span>" + formatDate(dto.getCreationDate()) + " by " + GSS.get().findUserFullName(dto.getCreatedBy()) + "</span>"); |
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permTable.setHTML(i, 2, "<span>" + formatDate(dto.getModificationDate()) + " by " + GSS.get().findUserFullName(dto.getModifiedBy()) + "</span>"); |
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permTable.setHTML(i, 3, "<span>" + dto.getFileSizeAsString() + "</span>"); |
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HTML downloadHtml = new HTML("<a class='hidden-link info' href='#'><span>"+AbstractImagePrototype.create(images.download()).getHTML()+"</span><div>View this Version</div></a>"); |
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downloadHtml.addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent event) { |
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GSS app = GSS.get(); |
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String dateString = RestCommand.getDate();
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String resource = dto.getUri().substring(app.getApiPath().length()-1, dto.getUri().length()); |
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String sig = app.getCurrentUserResource().getUsername()+" "+RestCommand.calculateSig("GET", dateString, resource, RestCommand.base64decode(app.getToken())); |
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String fileUrl = dto.getUri() + "?version=" + dto.getVersion() + "&Authorization=" + URL.encodeComponent(sig) + "&Date="+URL.encodeComponent(dateString); |
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Window.open(fileUrl, "_BLANK", ""); |
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} |
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}); |
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permTable.setWidget(i, 4, downloadHtml);
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permTable.setWidget(i, 5, restoreVersion);
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permTable.getFlexCellFormatter().setStyleName(i, 0, "props-labels"); |
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permTable.getFlexCellFormatter().setHorizontalAlignment(i, 0, HasHorizontalAlignment.ALIGN_CENTER);
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permTable.getFlexCellFormatter().setHorizontalAlignment(i, 1, HasHorizontalAlignment.ALIGN_CENTER);
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permTable.getFlexCellFormatter().setColSpan(i, 1, 2); |
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permTable.getFlexCellFormatter().setHorizontalAlignment(i, 2, HasHorizontalAlignment.ALIGN_CENTER);
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permTable.getFlexCellFormatter().setHorizontalAlignment(i, 3, HasHorizontalAlignment.ALIGN_CENTER);
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i++; |
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} |
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for (; i < permTable.getRowCount(); i++)
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permTable.removeRow(i); |
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} |
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void removeVersion(final FileResource version) { |
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DeleteCommand df = new DeleteCommand(version.getUri()){
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@Override
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public void onComplete() { |
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toRemove = version; |
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updateTable(); |
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GSS.get().getTreeView().refreshCurrentNode(false);
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} |
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@Override
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public void onError(Throwable t) { |
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GWT.log("", t);
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if(t instanceof RestException){ |
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int statusCode = ((RestException)t).getHttpStatusCode();
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if(statusCode == 405) |
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GSS.get().displayError("You don't have the necessary permissions");
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else if(statusCode == 404) |
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GSS.get().displayError("Versions does not exist");
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else
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GSS.get().displayError("Unable to remove version:"+((RestException)t).getHttpStatusText());
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} |
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else
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GSS.get().displayError("System error removing version:"+t.getMessage());
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} |
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}; |
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DeferredCommand.addCommand(df); |
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} |
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void restoreVersion(final FileResource version) { |
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FileResource selectedFile = (FileResource) GSS.get().getCurrentSelection(); |
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PostCommand ep = new PostCommand(selectedFile.getUri()+"?restoreVersion="+version.getVersion(),"",200){ |
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@Override
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public void onComplete() { |
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container.hide(); |
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GSS.get().getTreeView().refreshCurrentNode(false);
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} |
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@Override
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public void onError(Throwable t) { |
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GWT.log("", t);
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if(t instanceof RestException) |
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GSS.get().displayError("Unable to restore version:"+((RestException)t).getHttpStatusText());
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else
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GSS.get().displayError("System error restoring version:"+t.getMessage());
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} |
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}; |
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DeferredCommand.addCommand(ep); |
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} |
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private String formatDate(Date date){ |
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DateTimeFormat format = DateTimeFormat.getFormat("dd/MM/yyyy : HH:mm");
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return format.format(date);
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} |
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/**
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* Copies the input List to a new List
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* @param input
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*/
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private void copyListAndContinue(List<FileResource> input){ |
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List<FileResource> copiedInput = new ArrayList<FileResource>(); |
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for(FileResource dto : input) {
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copiedInput.add(dto); |
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} |
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handleFullNames(copiedInput); |
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} |
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/**
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* Examines whether or not the user's full name exists in the
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* userFullNameMap in the GSS.java for every element of the input list.
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* If the user's full name does not exist in the map then a request is being made
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* for the specific username.
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*
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* @param input
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*/
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private void handleFullNames(List<FileResource> input){ |
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if(input.isEmpty()){
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showVersionsTable(); |
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return;
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} |
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if(GSS.get().findUserFullName(input.get(0).getOwner()) == null){ |
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findFullNameAndUpdate(input); |
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return;
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} |
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if(input.size() >= 1){ |
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input.remove(input.get(0));
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if(input.isEmpty()){
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showVersionsTable(); |
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}else{
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handleFullNames(input); |
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} |
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} |
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} |
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/**
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* Makes a request to search for full name from a given username
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* and continues checking the next element of the List.
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*
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* @param input
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*/
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private void findFullNameAndUpdate(final List<FileResource> input){ |
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final String aUserName = input.get(0).getOwner(); |
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String path = GSS.get().getApiPath() + "users/" + aUserName; |
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GetCommand<UserSearchResource> gg = new GetCommand<UserSearchResource>(UserSearchResource.class, path, false,null) { |
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@Override
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public void onComplete() { |
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final UserSearchResource result = getResult();
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for (UserResource user : result.getUsers()){
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String username = user.getUsername();
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String userFullName = user.getName();
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GSS.get().putUserToMap(username, userFullName); |
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if(input.size() >= 1){ |
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input.remove(input.get(0));
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if(input.isEmpty()){
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showVersionsTable(); |
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return;
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} |
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handleFullNames(input); |
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} |
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} |
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} |
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@Override
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public void onError(Throwable t) { |
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GSS.get().displayError("Unable to fetch user's full name from the given username " + aUserName);
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if(input.size() >= 1){ |
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input.remove(input.get(0));
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handleFullNames(input); |
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} |
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} |
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}; |
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DeferredCommand.addCommand(gg); |
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} |
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} |