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

Example 6 with DocuImage

use of digilib.image.DocuImage 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 7 with DocuImage

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

the class AsyncServletWorker method run.

/**
 * runs the ImageWorker and writes the image to the ServletResponse.
 */
@Override
public void run() {
    try {
        /*
             * render the image
             */
        DocuImage img = imageWorker.call();
        if (completed) {
            logger.debug("AsyncServletWorker already completed (after scaling)!");
            return;
        }
        /*
             * set forced destination image type
             */
        String mt = null;
        if (jobinfo.hasOption(DigilibOption.jpg)) {
            mt = "image/jpeg";
        } else if (jobinfo.hasOption(DigilibOption.png)) {
            mt = "image/png";
        }
        /*
             *  send the image
             */
        HttpServletResponse response = (HttpServletResponse) asyncContext.getResponse();
        ServletOps.sendImage(img, mt, response, logger);
        logger.debug("Job done in: " + (System.currentTimeMillis() - startTime) + "ms");
    } catch (ImageOpException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        Scaler.digilibError(errMsgType, Error.IMAGE, null, (HttpServletResponse) asyncContext.getResponse());
    } catch (IOException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        Scaler.digilibError(errMsgType, Error.FILE, null, (HttpServletResponse) asyncContext.getResponse());
    } catch (ServletException e) {
        logger.error("Servlet error: ", e);
    } catch (Exception e) {
        logger.error("Other error: ", e);
    } finally {
        if (completed) {
            logger.debug("AsyncServletWorker already completed (finally)!");
        } else {
            // submit response
            logger.debug("context complete.");
            completed = true;
            asyncContext.complete();
        }
    }
}

Example 8 with DocuImage

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

the class PDFServletConfiguration method contextDestroyed.

/* (non-Javadoc)
     * @see digilib.conf.DigilibServletConfiguration#contextDestroyed(javax.servlet.ServletContextEvent)
     */
@Override
public void contextDestroyed(ServletContextEvent sce) {
    super.contextDestroyed(sce);
    ServletContext context = sce.getServletContext();
    DigilibServletConfiguration config = PDFServletConfiguration.getCurrentConfig(context);
    @SuppressWarnings("unchecked") DigilibJobCenter<DocuImage> pdfExecutor = (DigilibJobCenter<DocuImage>) config.getValue(PDF_EXECUTOR_KEY);
    if (pdfExecutor != null) {
        // shut down pdf thread pool
        List<Runnable> rj = pdfExecutor.shutdownNow();
        int nrj = rj.size();
        if (nrj > 0) {
            logger.error("Still running threads when shutting down PDF job queue: " + nrj);
        }
    }
    @SuppressWarnings("unchecked") DigilibJobCenter<DocuImage> pdfImageExecutor = (DigilibJobCenter<DocuImage>) config.getValue(PDF_IMAGEEXECUTOR_KEY);
    if (pdfImageExecutor != null) {
        // shut down pdf image thread pool
        List<Runnable> rj = pdfImageExecutor.shutdownNow();
        int nrj = rj.size();
        if (nrj > 0) {
            logger.error("Still running threads when shutting down PDF-image job queue: " + nrj);
        }
    }
}

Example 9 with DocuImage

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

the class PDFServletConfiguration method configurePdfServlet.

/**
 * @param config
 * @param context
 */
protected void configurePdfServlet(ServletContext context) {
    PDFServletConfiguration config = this;
    // PDF worker threads
    int pnt = config.getAsInt("pdf-worker-threads");
    int pmt = config.getAsInt("pdf-max-waiting-threads");
    DigilibJobCenter<OutputStream> pdfExecutor = new DigilibJobCenter<OutputStream>(pnt, pmt, false, "servlet.worker.pdfexecutor");
    config.setValue(PDF_EXECUTOR_KEY, pdfExecutor);
    // PDF image worker threads
    int pint = config.getAsInt("pdf-image-worker-threads");
    int pimt = config.getAsInt("pdf-image-max-waiting-threads");
    DigilibJobCenter<DocuImage> pdfImageExecutor = new DigilibJobCenter<DocuImage>(pint, pimt, false, "servlet.worker.pdfimageexecutor");
    config.setValue(PDF_IMAGEEXECUTOR_KEY, pdfImageExecutor);
    /*
         * set up temporary directories
         */
    String temp_fn = config.getAsString("pdf-temp-dir");
    File temp_directory = new File(temp_fn);
    if (!temp_directory.exists()) {
        // try to create
        temp_directory.mkdirs();
    } else {
        // rid the temporary directory of possible incomplete document files
        FileOps.emptyDirectory(temp_directory);
    }
    config.setValue(PDF_WORKDIR_KEY, temp_directory);
    String cache_fn = config.getAsString("pdf-cache-dir");
    File cache_directory = new File(cache_fn);
    if (!cache_directory.exists()) {
        // try to create
        cache_directory.mkdirs();
    }
    config.setValue(PDF_CACHEDIR_KEY, cache_directory);
    /*
         * set as the PDF servlets main config
         */
    context.setAttribute(PDF_SERVLET_CONFIG_KEY, this);
}

Example 10 with DocuImage

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

the class DigilibConfiguration method configure.

/**
 * Configure digilib.
 *
 * Sets up Factories and Singletons using the configuration.
 */
@SuppressWarnings("unchecked")
public void configure() {
    DigilibConfiguration config = this;
    setupLogger();
    /*
         * initialise static DocuImage class instance
         */
    try {
        Class<DocuImage> docuImageClass = (Class<DocuImage>) Class.forName(config.getAsString("docuimage-class"));
        DocuImageFactory.setDocuImageClass(docuImageClass);
        // DocuImage class instance
        DocuImage di = DocuImageFactory.getInstance();
        config.newParameter("servlet.docuimage.class", docuImageClass, null, 's');
        config.newParameter("servlet.docuimage.version", di.getVersion(), null, 's');
        logger.debug("DocuImage (" + docuImageClass + ") " + di.getVersion());
        // set hacks on instance
        try {
            docuImageClass.newInstance().setHacks(config.getAsString("docuimage-hacks"));
        } catch (InstantiationException | IllegalAccessException e) {
            logger.error("Error creating instance of DocuImage class!");
        }
        // log supported formats
        StringBuilder fmts = new StringBuilder();
        Iterator<String> dlfs = di.getSupportedFormats();
        for (String f = dlfs.next(); dlfs.hasNext(); f = dlfs.next()) {
            fmts.append(f);
            fmts.append(", ");
        }
        logger.info("DocuImage supported image formats: " + fmts);
    } catch (ClassNotFoundException e) {
        logger.error("Error setting DocuImage class!");
    }
    // disk cache for image toolkit
    boolean dc = getAsBoolean("img-diskcache-allowed");
    // TODO: methods for all toolkits?
    ImageIO.setUseCache(dc);
}