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/**
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at the
* <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache homepage</a>
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Initial code contributed and copyrighted by<br>
* frentix GmbH, http://www.frentix.com
* <p>
*/
package org.olat.modules.webFeed.portfolio;
import java.io.InputStream;
import org.olat.core.gui.UserRequest;
import org.olat.core.gui.components.Component;
import org.olat.core.gui.components.date.DateComponentFactory;
import org.olat.core.gui.components.velocity.VelocityContainer;
import org.olat.core.gui.control.Event;
import org.olat.core.gui.control.WindowControl;
import org.olat.core.gui.control.controller.BasicController;
import org.olat.core.util.StringHelper;
import org.olat.core.util.filter.Filter;
import org.olat.core.util.filter.FilterFactory;
import org.olat.core.util.vfs.VFSContainer;
import org.olat.core.util.vfs.VFSContainerMapper;
import org.olat.core.util.vfs.VFSItem;
import org.olat.core.util.vfs.VFSLeaf;
import org.olat.core.util.xml.XStreamHelper;
import org.olat.modules.portfolio.Media;
import org.olat.modules.portfolio.MediaRenderingHints;
import org.olat.modules.portfolio.manager.PortfolioFileStorage;
import org.olat.modules.portfolio.ui.MediaMetadataController;
import org.olat.modules.webFeed.Item;
import org.olat.modules.webFeed.model.ItemImpl;
import org.springframework.beans.factory.annotation.Autowired;
import com.thoughtworks.xstream.XStream;
/**
*
* Description:<br>
* Read-only view for a blog entry
*
* <P>
* Initial Date: 3 déc. 2010 <br>
* @author srosse, [email protected], http://www.frentix.com
*/
public class BlogEntryMediaController extends BasicController {
private static final XStream xstream = XStreamHelper.createXStreamInstance();
static {
XStreamHelper.allowDefaultPackage(xstream);
xstream.alias("item", ItemImpl.class);
}
@Autowired
private PortfolioFileStorage fileStorage;
public BlogEntryMediaController(UserRequest ureq, WindowControl wControl, Media media, MediaRenderingHints hints) {
super(ureq, wControl);
VelocityContainer mainVC = createVelocityContainer("media_post");
if (StringHelper.containsNonWhitespace(media.getStoragePath())) {
VFSContainer container = fileStorage.getMediaContainer(media);
VFSItem item = container.resolve(media.getRootFilename());
if(item instanceof VFSLeaf) {
VFSLeaf itemLeaf = (VFSLeaf)item;
try(InputStream in = itemLeaf.getInputStream()) {
Item blogItem = (ItemImpl)xstream.fromXML(in);
if(blogItem.getDate() != null) {
DateComponentFactory.createDateComponentWithYear("dateComp", blogItem.getDate(), mainVC);
}
String content = blogItem.getContent();
if (!StringHelper.containsNonWhitespace(content)) {
content = blogItem.getDescription();
}
mainVC.contextPut("content", content);
mainVC.contextPut("readOnlyMode", Boolean.TRUE);
mainVC.contextPut("item", blogItem);
String mapperBase = registerMapper(ureq, new VFSContainerMapper(container));
mainVC.contextPut("helper", new ItemHelper(mapperBase));
if(hints.isExtendedMetadata()) {
MediaMetadataController metaCtrl = new MediaMetadataController(ureq, wControl, media);
listenTo(metaCtrl);
mainVC.put("meta", metaCtrl.getInitialComponent());
}
} catch(Exception ex) {
logError("", ex);
}
}
}
putInitialPanel(mainVC);
}
@Override
protected void doDispose() {
//
}
@Override
protected void event(UserRequest ureq, Component source, Event event) {
//
}
public class ItemHelper {
private final String baseUri;
public ItemHelper(String baseUri) {
this.baseUri = baseUri;
}
public String getItemContentForBrowser(Item item) {
String itemContent = item.getContent();
if (itemContent != null) {
//Add relative media base to media elements to display internal media files
Filter mediaUrlFilter = FilterFactory.getBaseURLToMediaRelativeURLFilter(baseUri);
itemContent = mediaUrlFilter.filter(itemContent);
}
return itemContent;
}
public String getItemDescriptionForBrowser(Item item) {
String itemDescription = item.getDescription();
if (itemDescription != null) {
//Add relative media base to media elements to display internal media files
Filter mediaUrlFilter = FilterFactory.getBaseURLToMediaRelativeURLFilter(baseUri);
itemDescription = mediaUrlFilter.filter(itemDescription);
}
return itemDescription;
}
}
} |