Examples with LocalFileImpl org.olat.core.util.vfs.LocalFileImpl used on opensource projects

Example 66 with LocalFileImpl

use of org.olat.core.util.vfs.LocalFileImpl in project OpenOLAT by OpenOLAT.

the class VideoManagerImpl method getFrame.

/**
 * write the the given frame at frameNumber in the frame leaf
 * @param videoResource videoresource
 * @param frameNumber the frameNumber at which the frame should be taken from
 * @param frame the VFSLeaf to write the picked image to
 */
@Override
public boolean getFrame(OLATResource videoResource, int frameNumber, VFSLeaf frame) {
    File videoFile = ((LocalFileImpl) getMasterVideoFile(videoResource)).getBasefile();
    try (RandomAccessFile randomAccessFile = new RandomAccessFile(videoFile, "r")) {
        FileChannel ch = randomAccessFile.getChannel();
        FileChannelWrapper in = new FileChannelWrapper(ch);
        FrameGrab frameGrab = new FrameGrab(in).seekToFrameSloppy(frameNumber);
        OutputStream frameOutputStream = frame.getOutputStream(false);
        BufferedImage bufImg = frameGrab.getFrame();
        ImageIO.write(bufImg, "JPG", frameOutputStream);
        // close everything to prevent resource leaks
        frameOutputStream.close();
        in.close();
        ch.close();
        return true;
    } catch (Exception | AssertionError e) {
        log.error("Could not get frame::" + frameNumber + " for video::" + videoFile.getAbsolutePath(), e);
        return false;
    }
}

Example 67 with LocalFileImpl

use of org.olat.core.util.vfs.LocalFileImpl in project OpenOLAT by OpenOLAT.

the class VideoManagerImpl method hasVideoFile.

@Override
public boolean hasVideoFile(OLATResource videoResource) {
    VFSContainer masterContainer = getMasterContainer(videoResource);
    LocalFileImpl videoFile = (LocalFileImpl) masterContainer.resolve(FILENAME_VIDEO_MP4);
    return videoFile != null && videoFile.exists();
}

Example 68 with LocalFileImpl

use of org.olat.core.util.vfs.LocalFileImpl in project OpenOLAT by OpenOLAT.

the class VideoManagerImpl method setPosterframeResizeUploadfile.

/**
 * Sets the posterframe resize uploadfile. Tries to fit image to dimensions of video.
 *
 * @param videoResource the video resource
 * @param posterframe the newPosterFile
 */
@Override
public void setPosterframeResizeUploadfile(OLATResource videoResource, VFSLeaf newPosterFile) {
    VideoMeta videoMetadata = getVideoMetadata(videoResource);
    Size posterRes = imageHelper.getSize(newPosterFile, FILETYPE_JPG);
    // file size needs to be bigger than target resolution, otherwise use image as it comes
    if (posterRes != null && posterRes.getHeight() != 0 && posterRes.getWidth() != 0 && posterRes.getHeight() >= videoMetadata.getHeight() && posterRes.getWidth() >= videoMetadata.getWidth()) {
        VFSLeaf oldPosterFile = getPosterframe(videoResource);
        oldPosterFile.delete();
        VFSContainer masterContainer = getMasterContainer(videoResource);
        LocalFileImpl newPoster = (LocalFileImpl) masterContainer.createChildLeaf(FILENAME_POSTER_JPG);
        // to shrink image file, resolution ratio needs to be equal, otherwise crop from top left corner
        if (posterRes.getHeight() / posterRes.getWidth() == videoMetadata.getHeight() / videoMetadata.getWidth()) {
            imageHelper.scaleImage(newPosterFile, newPoster, videoMetadata.getWidth(), videoMetadata.getHeight(), true);
        } else {
            Crop cropSelection = new Crop(0, 0, videoMetadata.getHeight(), videoMetadata.getWidth());
            imageHelper.cropImage(((LocalFileImpl) newPosterFile).getBasefile(), newPoster.getBasefile(), cropSelection);
        }
    } else {
        setPosterframe(videoResource, newPosterFile);
    }
}

Example 69 with LocalFileImpl

use of org.olat.core.util.vfs.LocalFileImpl in project OpenOLAT by OpenOLAT.

the class CourseHandler method importGlossary.

private void importGlossary(ICourse course, Identity owner) {
    GlossaryManager gm = GlossaryManager.getInstance();
    RepositoryEntryImportExport importExport = gm.getRepositoryImportExport(course.getCourseExportDataDir().getBasefile());
    GlossaryResource resource = gm.createGlossary();
    if (resource == null) {
        log.error("Error adding glossary directry during repository reference import: " + importExport.getDisplayName());
        return;
    }
    // unzip contents
    VFSContainer glossaryContainer = gm.getGlossaryRootFolder(resource);
    File fExportedFile = importExport.importGetExportedFile();
    if (fExportedFile.exists()) {
        ZipUtil.unzip(new LocalFileImpl(fExportedFile), glossaryContainer);
    } else {
        log.warn("The actual contents of the glossary were not found in the export.");
    }
    // create repository entry
    RepositoryService repositoryService = CoreSpringFactory.getImpl(RepositoryService.class);
    OLATResource ores = OLATResourceManager.getInstance().findOrPersistResourceable(resource);
    RepositoryEntry importedRepositoryEntry = repositoryService.create(owner, null, importExport.getResourceName(), importExport.getDisplayName(), importExport.getDescription(), ores, 0);
    // set the new glossary reference
    CourseConfig courseConfig = course.getCourseEnvironment().getCourseConfig();
    courseConfig.setGlossarySoftKey(importedRepositoryEntry.getSoftkey());
    CoreSpringFactory.getImpl(ReferenceManager.class).addReference(course, importedRepositoryEntry.getOlatResource(), GlossaryManager.GLOSSARY_REPO_REF_IDENTIFYER);
    CourseFactory.setCourseConfig(course.getResourceableId(), courseConfig);
}

Example 70 with LocalFileImpl

use of org.olat.core.util.vfs.LocalFileImpl in project OpenOLAT by OpenOLAT.

the class CourseHandler method importSharedFolder.

private void importSharedFolder(ICourse course, Identity owner) {
    SharedFolderManager sfm = SharedFolderManager.getInstance();
    RepositoryEntryImportExport importExport = sfm.getRepositoryImportExport(course.getCourseExportDataDir().getBasefile());
    SharedFolderFileResource resource = sfm.createSharedFolder();
    if (resource == null) {
        log.error("Error adding file resource during repository reference import: " + importExport.getDisplayName());
    }
    // unzip contents
    VFSContainer sfContainer = sfm.getSharedFolder(resource);
    File fExportedFile = importExport.importGetExportedFile();
    if (fExportedFile.exists()) {
        ZipUtil.unzip(new LocalFileImpl(fExportedFile), sfContainer);
    } else {
        log.warn("The actual contents of the shared folder were not found in the export.");
    }
    // create repository entry
    RepositoryService repositoryService = CoreSpringFactory.getImpl(RepositoryService.class);
    OLATResource ores = OLATResourceManager.getInstance().findOrPersistResourceable(resource);
    RepositoryEntry importedRepositoryEntry = repositoryService.create(owner, null, importExport.getResourceName(), importExport.getDisplayName(), importExport.getDescription(), ores, 0);
    // set the new shared folder reference
    CourseConfig courseConfig = course.getCourseEnvironment().getCourseConfig();
    courseConfig.setSharedFolderSoftkey(importedRepositoryEntry.getSoftkey());
    CoreSpringFactory.getImpl(ReferenceManager.class).addReference(importedRepositoryEntry.getOlatResource(), course, SharedFolderManager.SHAREDFOLDERREF);
    CourseFactory.setCourseConfig(course.getResourceableId(), courseConfig);
}