Examples with DatasetThumbnail edu.harvard.iq.dataverse.dataset.DatasetThumbnail used on opensource projects

Example 6 with DatasetThumbnail

use of edu.harvard.iq.dataverse.dataset.DatasetThumbnail in project dataverse by IQSS.

the class Admin method getDatasetThumbnailMetadata.

/**
 * This method is used in API tests, called from UtilIt.java.
 */
@GET
@Path("datasets/thumbnailMetadata/{id}")
public Response getDatasetThumbnailMetadata(@PathParam("id") Long idSupplied) {
    Dataset dataset = datasetSvc.find(idSupplied);
    if (dataset == null) {
        return error(Response.Status.NOT_FOUND, "Could not find dataset based on id supplied: " + idSupplied + ".");
    }
    JsonObjectBuilder data = Json.createObjectBuilder();
    DatasetThumbnail datasetThumbnail = dataset.getDatasetThumbnail();
    data.add("isUseGenericThumbnail", dataset.isUseGenericThumbnail());
    data.add("datasetLogoPresent", DatasetUtil.isDatasetLogoPresent(dataset));
    if (datasetThumbnail != null) {
        data.add("datasetThumbnailBase64image", datasetThumbnail.getBase64image());
        DataFile dataFile = datasetThumbnail.getDataFile();
        if (dataFile != null) {
            /**
             * @todo Change this from a String to a long.
             */
            data.add("dataFileId", dataFile.getId().toString());
        }
    }
    return ok(data);
}

Example 7 with DatasetThumbnail

use of edu.harvard.iq.dataverse.dataset.DatasetThumbnail in project dataverse by IQSS.

the class FileUtil method getThumbnail.

/* 
     * The method below appears to be unnecessary; 
     * it duplicates the method generateImageThumbnailFromFileAsBase64() from ImageThumbConverter;
     * plus it creates an unnecessary temp file copy of the source file.    
    public static String rescaleImage(File file) throws IOException {
        if (file == null) {
            logger.info("file was null!!");
            return null;
        }
        File tmpFile = File.createTempFile("tempFileToRescale", ".tmp");
        BufferedImage fullSizeImage = ImageIO.read(file);
        if (fullSizeImage == null) {
            logger.info("fullSizeImage was null!");
            return null;
        }
        int width = fullSizeImage.getWidth();
        int height = fullSizeImage.getHeight();
        FileChannel src = new FileInputStream(file).getChannel();
        FileChannel dest = new FileOutputStream(tmpFile).getChannel();
        dest.transferFrom(src, 0, src.size());
        String pathToResizedFile = ImageThumbConverter.rescaleImage(fullSizeImage, width, height, ImageThumbConverter.DEFAULT_CARDIMAGE_SIZE, tmpFile.getAbsolutePath());
        File resizedFile = new File(pathToResizedFile);
        return ImageThumbConverter.getImageAsBase64FromFile(resizedFile);
    }
    */
public static DatasetThumbnail getThumbnail(DataFile file) {
    String imageSourceBase64 = ImageThumbConverter.getImageThumbnailAsBase64(file, ImageThumbConverter.DEFAULT_THUMBNAIL_SIZE);
    DatasetThumbnail defaultDatasetThumbnail = new DatasetThumbnail(imageSourceBase64, file);
    return defaultDatasetThumbnail;
}

Example 8 with DatasetThumbnail

use of edu.harvard.iq.dataverse.dataset.DatasetThumbnail in project dataverse by IQSS.

the class EditDatafilesPage method deleteDatasetLogoAndUseThisDataFileAsThumbnailInstead.

public void deleteDatasetLogoAndUseThisDataFileAsThumbnailInstead() {
    logger.log(Level.FINE, "For dataset id {0} the current thumbnail is from a dataset logo rather than a dataset file, blowing away the logo and using this FileMetadata id instead: {1}", new Object[] { dataset.getId(), fileMetadataSelectedForThumbnailPopup });
    /**
     * @todo Rather than deleting and merging right away, try to respect how
     * this page seems to stage actions and giving the user a chance to
     * review before clicking "Save Changes".
     */
    try {
        DatasetThumbnail datasetThumbnail = commandEngine.submit(new UpdateDatasetThumbnailCommand(dvRequestService.getDataverseRequest(), dataset, UpdateDatasetThumbnailCommand.UserIntent.setDatasetFileAsThumbnail, fileMetadataSelectedForThumbnailPopup.getDataFile().getId(), null));
        // look up the dataset again because the UpdateDatasetThumbnailCommand mutates (merges) the dataset
        dataset = datasetService.find(dataset.getId());
    } catch (CommandException ex) {
        String error = "Problem setting thumbnail for dataset id " + dataset.getId() + ".: " + ex;
        // show this error to the user?
        logger.info(error);
    }
}

Example 9 with DatasetThumbnail

use of edu.harvard.iq.dataverse.dataset.DatasetThumbnail in project dataverse by IQSS.

the class UpdateDatasetThumbnailCommand method execute.

@Override
public DatasetThumbnail execute(CommandContext ctxt) throws CommandException {
    if (dataset == null) {
        String message = "Can't update dataset thumbnail. Dataset is null.";
        logger.info(message);
        throw new IllegalCommandException(message, this);
    }
    // }
    if (userIntent == null) {
        throw new IllegalCommandException("No changes to save.", this);
    }
    switch(userIntent) {
        case setDatasetFileAsThumbnail:
            if (dataFileIdSupplied == null) {
                throw new CommandException("A file was not selected to be the new dataset thumbnail.", this);
            }
            DataFile datasetFileThumbnailToSwitchTo = ctxt.files().find(dataFileIdSupplied);
            if (datasetFileThumbnailToSwitchTo == null) {
                throw new CommandException("Could not find file based on id supplied: " + dataFileIdSupplied + ".", this);
            }
            Dataset ds1 = ctxt.datasets().setDatasetFileAsThumbnail(dataset, datasetFileThumbnailToSwitchTo);
            DatasetThumbnail datasetThumbnail = ds1.getDatasetThumbnail();
            if (datasetThumbnail != null) {
                DataFile dataFile = datasetThumbnail.getDataFile();
                if (dataFile != null) {
                    if (dataFile.getId().equals(dataFileIdSupplied)) {
                        return datasetThumbnail;
                    } else {
                        throw new CommandException("Dataset thumbnail is should be based on file id " + dataFile.getId() + " but instead it is " + dataFileIdSupplied + ".", this);
                    }
                }
            } else {
                throw new CommandException("Dataset thumbnail is unexpectedly absent.", this);
            }
        case setNonDatasetFileAsThumbnail:
            File uploadedFile;
            try {
                uploadedFile = FileUtil.inputStreamToFile(inputStream);
            } catch (IOException ex) {
                throw new CommandException("In setNonDatasetFileAsThumbnail caught exception calling inputStreamToFile: " + ex, this);
            }
            if (uploadedFile == null) {
                throw new CommandException("In setNonDatasetFileAsThumbnail uploadedFile was null.", this);
            }
            long uploadLogoSizeLimit = ctxt.systemConfig().getUploadLogoSizeLimit();
            if (uploadedFile.length() > uploadLogoSizeLimit) {
                throw new IllegalCommandException("File is larger than maximum size: " + uploadLogoSizeLimit + ".", this);
            }
            FileInputStream fileAsStream = null;
            try {
                fileAsStream = new FileInputStream(uploadedFile);
            } catch (FileNotFoundException ex) {
                Logger.getLogger(UpdateDatasetThumbnailCommand.class.getName()).log(Level.SEVERE, null, ex);
            }
            Dataset datasetWithNewThumbnail = ctxt.datasets().setNonDatasetFileAsThumbnail(dataset, fileAsStream);
            if (datasetWithNewThumbnail != null) {
                return datasetWithNewThumbnail.getDatasetThumbnail();
            } else {
                return null;
            }
        case removeThumbnail:
            Dataset ds2 = ctxt.datasets().removeDatasetThumbnail(dataset);
            DatasetThumbnail datasetThumbnail2 = ds2.getDatasetThumbnail();
            if (datasetThumbnail2 == null) {
                return null;
            } else {
                throw new CommandException("User wanted to remove the thumbnail it still has one!", this);
            }
        default:
            throw new IllegalCommandException("Whatever you are trying to do to the dataset thumbnail is not supported.", this);
    }
}

Example 10 with DatasetThumbnail

use of edu.harvard.iq.dataverse.dataset.DatasetThumbnail in project dataverse by IQSS.

the class Datasets method getDatasetThumbnailCandidates.

@GET
@Path("{id}/thumbnail/candidates")
public Response getDatasetThumbnailCandidates(@PathParam("id") String idSupplied) {
    try {
        Dataset dataset = findDatasetOrDie(idSupplied);
        boolean canUpdateThumbnail = false;
        try {
            canUpdateThumbnail = permissionSvc.requestOn(createDataverseRequest(findUserOrDie()), dataset).canIssue(UpdateDatasetThumbnailCommand.class);
        } catch (WrappedResponse ex) {
            logger.info("Exception thrown while trying to figure out permissions while getting thumbnail for dataset id " + dataset.getId() + ": " + ex.getLocalizedMessage());
        }
        if (!canUpdateThumbnail) {
            return error(Response.Status.FORBIDDEN, "You are not permitted to list dataset thumbnail candidates.");
        }
        JsonArrayBuilder data = Json.createArrayBuilder();
        boolean considerDatasetLogoAsCandidate = true;
        for (DatasetThumbnail datasetThumbnail : DatasetUtil.getThumbnailCandidates(dataset, considerDatasetLogoAsCandidate)) {
            JsonObjectBuilder candidate = Json.createObjectBuilder();
            String base64image = datasetThumbnail.getBase64image();
            if (base64image != null) {
                logger.fine("found a candidate!");
                candidate.add("base64image", base64image);
            }
            DataFile dataFile = datasetThumbnail.getDataFile();
            if (dataFile != null) {
                candidate.add("dataFileId", dataFile.getId());
            }
            data.add(candidate);
        }
        return ok(data);
    } catch (WrappedResponse ex) {
        return error(Response.Status.NOT_FOUND, "Could not find dataset based on id supplied: " + idSupplied + ".");
    }
}