Examples with ImageInput digilib.io.ImageInput used on opensource projects

Example 6 with ImageInput

use of digilib.io.ImageInput 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 ImageInput

use of digilib.io.ImageInput in project digilib by robcast.

the class Manifester method writeCanvases.

/**
 * @param dlDir
 * @param url
 * @param manifest
 * @param servletUrl
 */
protected void writeCanvases(JsonGenerator manifest, ManifestParams params) {
    /*
		 * list of canvases
		 */
    manifest.writeStartArray("canvases");
    int idx = 0;
    for (DocuDirent imgFile : params.docuDir) {
        idx += 1;
        ImageFileSet imgFs = (ImageFileSet) imgFile;
        ImageInput img = imgFs.getBiggest();
        ImageSize imgSize = img.getSize();
        if (imgSize == null)
            continue;
        /*
			 * canvas
			 */
        writeCanvas(manifest, idx, imgFile, imgSize, params);
    }
    // canvases
    manifest.writeEnd();
}

Example 8 with ImageInput

use of digilib.io.ImageInput in project digilib by robcast.

the class JAIDocuImage method identify.

/* Check image size and type and store in ImageFile f */
public ImageInput identify(ImageInput input) throws IOException {
    this.input = input;
    // try parent method first
    ImageInput imf = super.identify(input);
    if (imf != null) {
        return imf;
    }
    /*
		 * try JAI
		 */
    logger.debug("identifying (JAI) " + input);
    try {
        RenderedOp img = null;
        if (input.hasFile()) {
            String t = FileOps.mimeForFile(input.getFile());
            input.setMimetype(t);
            img = JAI.create("fileload", input.getFile().getAbsolutePath());
        } else if (input.hasInputStream()) {
            img = JAI.create("stream", input.getInputStream());
        // FIXME: where do we get the mimetype?
        } else {
            throw new FileOpException("unable to get data for image!");
        }
        ImageSize d = new ImageSize(img.getWidth(), img.getHeight());
        input.setSize(d);
        logger.debug("image size: " + d);
        return input;
    } catch (Exception e) {
        throw new FileOpException("ERROR: unable to identify image!");
    }
}

Example 9 with ImageInput

use of digilib.io.ImageInput 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);
    }
}