Examples with ImageJobDescription digilib.image.ImageJobDescription used on opensource projects

Example 1 with ImageJobDescription

use of digilib.image.ImageJobDescription in project digilib by robcast.

the class PDFStreamWorker method renderPDF.

/**
 * @throws DocumentException
 * @throws InterruptedException
 * @throws ExecutionException
 * @throws IOException
 * @throws ImageOpException
 */
protected OutputStream renderPDF() throws DocumentException, InterruptedException, ExecutionException, IOException, ImageOpException {
    // create document object
    doc = new Document(PageSize.A4, 0, 0, 0, 0);
    PdfWriter docwriter = null;
    long start_time = System.currentTimeMillis();
    docwriter = PdfWriter.getInstance(doc, outstream);
    setPDFProperties(doc);
    doc.open();
    addTitlePage(doc);
    logger.debug("PDF: " + outstream + " doc.open()ed (" + (System.currentTimeMillis() - start_time) + "ms)");
    NumRange pgs = job_info.getPages();
    for (int p : pgs) {
        logger.debug("PDF: adding Image " + p + " to " + outstream);
        // set page number
        job_info.setValue("pn", p);
        // create ImageJobInformation
        ImageJobDescription iji = ImageJobDescription.getInstance(job_info, job_info.getDlConfig());
        addImage(doc, iji);
        logger.debug("PDF: done adding Image " + p + " to " + outstream);
    }
    logger.debug("PDF: done adding all Images to " + outstream);
    doc.close();
    logger.debug("PDF: " + outstream + " doc.close() (" + (System.currentTimeMillis() - start_time) + "ms)");
    docwriter.flush();
    docwriter.close();
    return outstream;
}

Example 2 with ImageJobDescription

use of digilib.image.ImageJobDescription in project digilib by robcast.

the class Scaler method processRequest.

/**
 * Service this request using the response.
 *
 * @param request
 * @param response
 * @throws ServletException
 */
public void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException {
    if (dlConfig == null) {
        logger.error("ERROR: No Configuration!");
        throw new ServletException("NO VALID digilib CONFIGURATION!");
    }
    accountlog.debug("request: " + request.getQueryString());
    logger.debug("request: " + request.getQueryString());
    // logger.debug("processRequest response committed=" + response.isCommitted());
    if (response.isCommitted()) {
        logger.error("Crap: response committed before we got a chance!");
    }
    final long startTime = System.currentTimeMillis();
    // parse request
    DigilibServletRequest dlRequest = new DigilibServletRequest(request, dlConfig);
    // type of error reporting
    ErrMsg errMsgType = defaultErrMsgType;
    if (dlRequest.hasOption(DigilibOption.errimg)) {
        errMsgType = ErrMsg.IMAGE;
    } else if (dlRequest.hasOption(DigilibOption.errtxt)) {
        errMsgType = ErrMsg.TEXT;
    } else if (dlRequest.hasOption(DigilibOption.errcode)) {
        errMsgType = ErrMsg.CODE;
    }
    try {
        // extract the job information
        final ImageJobDescription jobTicket = ImageJobDescription.getInstance(dlRequest, dlConfig);
        // handle the IIIF info-request
        if (dlRequest.hasOption(DigilibOption.info)) {
            ServletOps.sendIiifInfo(dlRequest, response, logger);
            return;
        }
        if (dlRequest.hasOption(DigilibOption.redirect_info)) {
            StringBuffer url = request.getRequestURL();
            if (url.toString().endsWith("/")) {
                url.append("info.json");
            } else {
                url.append("/info.json");
            }
            // TODO: the redirect should have code 303
            response.sendRedirect(url.toString());
            return;
        }
        // error out if request was bad
        if (dlRequest.errorMessage != null) {
            digilibError(errMsgType, Error.UNKNOWN, dlRequest.errorMessage, response);
            return;
        }
        /*
             * check permissions
             */
        if (useAuthorization) {
            // is the current request/user authorized?
            if (!authzOp.isAuthorized(dlRequest)) {
                // send deny answer and abort
                throw new AuthOpException("Access denied!");
            }
        }
        /*
             * get the input file
             */
        ImageInput fileToLoad = jobTicket.getInput();
        /*
             * if requested, send image as a file
             */
        if (sendFileAllowed && jobTicket.getSendAsFile()) {
            String mt = null;
            if (jobTicket.hasOption(DigilibOption.rawfile)) {
                // mo=rawfile sends as octet-stream
                mt = "application/octet-stream";
            }
            logger.debug("Sending RAW File as is.");
            ServletOps.sendFile(fileToLoad.getFile(), mt, null, response, logger);
            logger.info("Done in " + (System.currentTimeMillis() - startTime) + "ms");
            return;
        }
        /*
             * send the image if it's possible without having to transform it
             */
        if (!jobTicket.isTransformRequired()) {
            logger.debug("Sending File as is.");
            ServletOps.sendFile(fileToLoad.getFile(), null, null, response, logger);
            logger.info("Done in " + (System.currentTimeMillis() - startTime) + "ms");
            return;
        }
        /*
             * check load of workers
             */
        if (imageJobCenter.isBusy()) {
            logger.error("Servlet overloaded!");
            response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
            return;
        }
        /*
             * dispatch worker job to be done asynchronously
             */
        AsyncContext asyncCtx = request.startAsync();
        // create job
        AsyncServletWorker job = new AsyncServletWorker(dlConfig, jobTicket, asyncCtx, errMsgType, startTime);
        // AsyncServletWorker is its own AsyncListener
        asyncCtx.addListener(job);
        // submit job
        imageJobCenter.submit(job);
    // we're done for now
    } catch (ImageOpException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        digilibError(errMsgType, Error.IMAGE, null, response);
    } catch (IOException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        digilibError(errMsgType, Error.FILE, null, response);
    } catch (AuthOpException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        digilibError(errMsgType, Error.AUTH, null, response);
    } catch (Exception e) {
        logger.error("Other Exception: ", e);
    // TODO: should we rethrow or swallow?
    // throw new ServletException(e);
    }
}

Example 3 with ImageJobDescription

use of digilib.image.ImageJobDescription in project digilib by robcast.

the class ScalerNoThread method processRequest.

/**
 * Service this request using the response.
 *
 * @param request
 * @param response
 * @throws ServletException
 */
public void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException {
    if (dlConfig == null) {
        logger.error("ERROR: No Configuration!");
        throw new ServletException("NO VALID digilib CONFIGURATION!");
    }
    accountlog.debug("request: " + request.getQueryString());
    logger.debug("request: " + request.getQueryString());
    long startTime = System.currentTimeMillis();
    // parse request
    DigilibServletRequest dlRequest = new DigilibServletRequest(request, dlConfig);
    // type of error reporting
    ErrMsg errMsgType = ErrMsg.IMAGE;
    if (dlRequest.hasOption(DigilibOption.errtxt)) {
        errMsgType = ErrMsg.TEXT;
    } else if (dlRequest.hasOption(DigilibOption.errcode)) {
        errMsgType = ErrMsg.CODE;
    }
    try {
        // extract the job information
        ImageJobDescription jobTicket = ImageJobDescription.getInstance(dlRequest, dlConfig);
        /*
             * check if we can fast-track without scaling
             */
        ImageInput fileToLoad = (ImageInput) jobTicket.getInput();
        // check permissions
        if (useAuthorization) {
            // is the current request/user authorized?
            if (!authzOp.isAuthorized(dlRequest)) {
                // send deny answer and abort
                throw new AuthOpException();
            }
        }
        // if requested, send image as a file
        if (sendFileAllowed && jobTicket.getSendAsFile()) {
            String mt = null;
            if (jobTicket.hasOption(DigilibOption.rawfile)) {
                mt = "application/octet-stream";
            }
            logger.debug("Sending RAW File as is.");
            ServletOps.sendFile(fileToLoad.getFile(), mt, null, response, logger);
            logger.info("Done in " + (System.currentTimeMillis() - startTime) + "ms");
            return;
        }
        // it
        if (!jobTicket.isTransformRequired()) {
            logger.debug("Sending File as is.");
            ServletOps.sendFile(fileToLoad.getFile(), null, null, response, logger);
            logger.info("Done in " + (System.currentTimeMillis() - startTime) + "ms");
            return;
        }
        // create job
        ImageWorker job = new ImageWorker(dlConfig, jobTicket);
        // get result immediately
        DocuImage img = job.call();
        // forced destination image type
        String mt = null;
        if (jobTicket.hasOption(DigilibOption.jpg)) {
            mt = "image/jpeg";
        } else if (jobTicket.hasOption(DigilibOption.png)) {
            mt = "image/png";
        }
        // send image
        ServletOps.sendImage(img, mt, response, logger);
        logger.debug("Job Processing Time: " + (System.currentTimeMillis() - startTime) + "ms");
    } catch (ImageOpException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        digilibError(errMsgType, Error.IMAGE, null, response);
    } catch (IOException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        digilibError(errMsgType, Error.FILE, null, response);
    } catch (AuthOpException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        digilibError(errMsgType, Error.AUTH, null, response);
    }
}

Example 4 with ImageJobDescription

use of digilib.image.ImageJobDescription in project digilib by robcast.

the class PDFRequest method setWithRequest.

/**
 * Read the request object.
 *
 * @param request
 * @throws ImageOpException
 * @throws IOException
 */
public void setWithRequest(HttpServletRequest request) throws IOException, ImageOpException {
    // read matching request parameters for the parameters in this map
    for (String k : params.keySet()) {
        if (request.getParameterMap().containsKey(k)) {
            setValueFromString(k, request.getParameter(k));
        }
    }
    // process parameters
    pages = new NumRange(getAsString("pgs"));
    ImageJobDescription ij = ImageJobDescription.getInstance(this, dlConfig);
    DocuDirectory dir = ij.getFileDirectory();
    int dirsize = dir.size();
    pages.setMaxnum(dirsize);
}

Example 5 with ImageJobDescription

use of digilib.image.ImageJobDescription in project digilib by robcast.

the class MetaAccessAuthzOps method rolesForPath.

/**
 * Return authorization roles needed for request.
 *
 * Returns the list of authorization roles that are needed to access the
 * specified path. No list means the path is free.
 *
 * The location information of the request is also considered.
 *
 * @param request
 *            ServletRequest with address information.
 * @throws AuthOpException
 *             Exception thrown on error.
 * @return List of Strings with role names.
 */
@Override
public List<String> rolesForPath(DigilibServletRequest dlRequest) throws AuthOpException {
    DocuDirent imgs;
    try {
        // try to get image file from JobDescription
        ImageJobDescription ticket = dlRequest.getJobDescription();
        if (ticket != null) {
            imgs = (DocuDirent) ticket.getImageSet();
        } else {
            // try to get image file from DirCache
            DigilibConfiguration config = dlRequest.getDigilibConfig();
            DocuDirCache cache = (DocuDirCache) config.getValue(DigilibServletConfiguration.DIR_CACHE_KEY);
            imgs = cache.getFile(dlRequest.getFilePath(), dlRequest.getAsInt("pn"));
        }
    } catch (FileOpException e) {
        throw new AuthOpException("No file for auth check!");
    }
    /*
         * get access restrictions from metadata
         */
    String access = null;
    try {
        imgs.checkMeta();
        MetadataMap meta = imgs.getMeta().getFileMeta();
        if (meta != null) {
            access = meta.get("access");
        }
    } catch (Exception e) {
        logger.error("Error getting access meta for file!");
    }
    if (access == null) {
        // no access tag - use default
        logger.debug("Roles required for " + imgs.getName() + ": " + defaultRoles + "(default)");
        return defaultRoles;
    } else if (access.equalsIgnoreCase("free")) {
        // access free
        logger.debug("Roles required for " + imgs.getName() + ": (free)");
        return null;
    }
    // get required roles
    if (rolesMap.containsKey(access)) {
        List<String> required = rolesMap.get(access);
        logger.debug("Roles required for " + imgs.getName() + ": " + required);
        return required;
    } else {
        // no mapping to role
        logger.error("Error: no role for access type '" + access + "'");
        // use default
        logger.debug("Roles required for " + imgs.getName() + ": " + defaultRoles + "(substituted default)");
        return defaultRoles;
    }
}