FolderManager.java

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <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>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.  
* <p>
*/ 

package org.olat.core.commons.modules.bc;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.olat.core.CoreSpringFactory;
import org.olat.core.commons.modules.bc.meta.MetaInfo;
import org.olat.core.commons.modules.bc.meta.MetaInfoFactory;
import org.olat.core.commons.modules.bc.vfs.OlatRootFolderImpl;
import org.olat.core.helpers.Settings;
import org.olat.core.manager.BasicManager;
import org.olat.core.util.WebappHelper;
import org.olat.core.util.vfs.OlatRelPathImpl;
import org.olat.core.util.vfs.VFSItem;
import org.olat.core.util.vfs.VFSLeaf;
import org.olat.core.util.vfs.filters.SystemItemFilter;

/**
 * Initial Date:  18.12.2002
 *
 * @author Mike Stock
 */
public class FolderManager  extends BasicManager {

	/**
	 * Get this path as a full WebDAV link
	 * @return Full link representation.
	 */
	public static String getWebDAVHttp() {
		if(Settings.isInsecurePortAvailable()) {
			return Settings.getInsecureServerContextPathURI() + WebappHelper.getServletContextPath() + "/webdav";
		}
		return null;
	}
	
	public static String getWebDAVHttps() {
		if(Settings.isSecurePortAvailable()) {
			return Settings.getSecureServerContextPathURI() + WebappHelper.getServletContextPath() + "/webdav";
		}
		return null;
	}
	
	/**
	 * @param bcBase
	 * @param newerThan
	 * @return a List of FileInfo
	 */
	public static List<FileInfo> getFileInfos(final String olatRelPath, Date newerThan) {
		
		final List<FileInfo> fileInfos = new ArrayList<>();
		final long newerThanLong = newerThan.getTime();
		OlatRootFolderImpl rootFolder = new OlatRootFolderImpl(olatRelPath, null);
		getFileInfosRecursively(rootFolder, fileInfos, newerThanLong, olatRelPath.length());
		return fileInfos;
	}

	private static void getFileInfosRecursively(OlatRelPathImpl relPath, List<FileInfo> fileInfos, long newerThan, int basePathlen) {
		if (relPath instanceof VFSLeaf) {
			// is a file
			long lastModified = ((VFSLeaf)relPath).getLastModified();
			if (lastModified > newerThan) {
				MetaInfo meta = CoreSpringFactory.getImpl(MetaInfoFactory.class).createMetaInfoFor(relPath);
				String bcrootPath = relPath.getRelPath();
				String bcRelPath = bcrootPath.substring(basePathlen);
				fileInfos.add(new FileInfo(bcRelPath, meta, new Date(lastModified)));
			}
		} else {
			// is a folder
			OlatRootFolderImpl container = (OlatRootFolderImpl)relPath;
			for (VFSItem item : container.getItems(new SystemItemFilter())) {
				getFileInfosRecursively((OlatRelPathImpl)item, fileInfos, newerThan, basePathlen);
			}
		}
	}
	
}