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

Example 6 with FileOpException

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

the class JAIImageLoaderDocuImage method writeImage.

/* Write the current image to an OutputStream. */
public void writeImage(String mt, OutputStream ostream) throws ImageOpException, FileOpException {
    logger.debug("writeImage");
    try {
        // setup output
        ParameterBlock pb3 = new ParameterBlock();
        pb3.addSource(img);
        pb3.add(ostream);
        if (mt == "image/jpeg") {
            pb3.add("JPEG");
        } else if (mt == "image/png") {
            pb3.add("PNG");
        } else {
            // unknown mime type
            throw new ImageOpException("Unknown mime type: " + mt);
        }
        // render output
        JAI.create("ImageWrite", pb3);
    } catch (RuntimeException e) {
        throw new FileOpException("Error writing image.");
    }
}

Example 7 with FileOpException

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

the class ServletOps method sendIiifInfo.

/**
 * Returns IIIF compatible image information as application/json response.
 *
 * @param dlReq
 * @param response
 * @param logger
 * @throws FileOpException
 * @throws ServletException
 * @see <a href="http://www-sul.stanford.edu/iiif/image-api/1.1/#info">IIIF Image Information Request</a>
 */
public static void sendIiifInfo(DigilibServletRequest dlReq, HttpServletResponse response, Logger logger) throws ServletException {
    if (response == null) {
        logger.error("No response!");
        return;
    }
    /*
         * get image size
         */
    ImageSize size = null;
    ImageSet imageSet = null;
    try {
        // get original image size
        imageSet = dlReq.getJobDescription().getImageSet();
        ImageInput img = imageSet.getBiggest();
        size = img.getSize();
    } catch (FileOpException e) {
        try {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        } catch (IOException e1) {
            throw new ServletException("Unable to write error response!", e);
        }
    }
    /*
         * get resource URL
         */
    String url = dlReq.getServletRequest().getRequestURL().toString();
    if (url.endsWith("/info.json")) {
        url = url.substring(0, url.lastIndexOf("/info.json"));
    } else if (url.endsWith("/")) {
        url = url.substring(0, url.lastIndexOf("/"));
    }
    /*
         * send response
         */
    response.setCharacterEncoding("UTF-8");
    logger.debug("sending info.json");
    try {
        /*
             * set CORS header ACAO "*" for info response as per IIIF spec
             */
        if (corsForInfoRequests) {
            String origin = dlReq.getServletRequest().getHeader("Origin");
            if (origin != null) {
                response.setHeader("Access-Control-Allow-Origin", "*");
            }
        }
        if (dlConfig.getAsString("iiif-api-version").startsWith("2.")) {
            /*
                 * IIIF Image API version 2 image information
                 */
            // use JSON-LD content type only when asked
            String accept = dlReq.getServletRequest().getHeader("Accept");
            if (accept != null && accept.contains("application/ld+json")) {
                response.setContentType("application/ld+json");
            } else {
                response.setContentType("application/json");
            }
            // write info.json
            ServletOutputStream out = response.getOutputStream();
            JsonGenerator info = Json.createGenerator(out);
            // top level object
            info.writeStartObject().write("@context", "http://iiif.io/api/image/2/context.json").write("@id", url).write("protocol", "http://iiif.io/api/image").write("width", size.width).write("height", size.height);
            // profile[ array
            info.writeStartArray("profile").write("http://iiif.io/api/image/2/level2.json");
            // profile[{ object
            info.writeStartObject();
            // profile[{formats[
            info.writeStartArray("formats").write("jpg").write("png").writeEnd();
            // profile[{qualities[
            info.writeStartArray("qualities").write("color").write("gray").writeEnd();
            // profile[{maxArea
            if (dlConfig.getAsInt("max-image-size") > 0) {
                info.write("maxArea", dlConfig.getAsInt("max-image-size"));
            }
            // profile[{supports[
            info.writeStartArray("supports").write("mirroring").write("rotationArbitrary").write("sizeAboveFull").write("regionSquare").writeEnd();
            // profile[{}
            info.writeEnd();
            // profile[]
            info.writeEnd();
            // add size of original and prescaled images
            int numImgs = imageSet.size();
            if (numImgs > 0) {
                // sizes[
                info.writeStartArray("sizes");
                for (int i = numImgs - 1; i >= 0; --i) {
                    ImageInput ii = imageSet.get(i);
                    ImageSize is = ii.getSize();
                    // sizes[{
                    info.writeStartObject().write("width", is.getWidth()).write("height", is.getHeight()).writeEnd();
                }
                // sizes[]
                info.writeEnd();
            }
            // end info.json
            info.writeEnd();
            info.close();
        } else {
            /*
                 * IIIF Image API version 1 image information
                 */
            response.setContentType("application/json,application/ld+json");
            // write info.json
            ServletOutputStream out = response.getOutputStream();
            JsonGenerator info = Json.createGenerator(out);
            // top level object
            info.writeStartObject().write("@context", "http://library.stanford.edu/iiif/image-api/1.1/context.json").write("@id", url).write("width", size.width).write("height", size.height);
            // formats[
            info.writeStartArray("formats").write("jpg").write("png").writeEnd();
            // qualities[
            info.writeStartArray("qualities").write("native").write("color").write("gray").writeEnd();
            // profile
            info.write("profile", "http://library.stanford.edu/iiif/image-api/1.1/compliance.html#level2");
            // end info.json
            info.writeEnd();
            info.close();
        }
    } catch (IOException e) {
        throw new ServletException("Unable to write response!", e);
    }
}

Example 8 with FileOpException

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

the class BioFormatsDocuImage method loadImage.

@Override
public void loadImage(ImageInput ii) throws FileOpException {
    logger.debug("loadImage: " + ii);
    this.input = ii;
    reader = new ImageReader();
    try {
        // construct the object that stores OME-XML metadata
        ServiceFactory factory = new ServiceFactory();
        OMEXMLService service = factory.getInstance(OMEXMLService.class);
        meta = service.createOMEXMLMetadata();
        // set up the reader and associate it with the input file
        reader = new ImageReader();
        reader.setMetadataStore(meta);
        reader.setId(ii.getFile().getAbsolutePath());
        BufferedImageReader biReader = BufferedImageReader.makeBufferedImageReader(reader);
        img = biReader.openImage(0);
        logger.debug("image loaded: " + img);
    } catch (FormatException e) {
        throw new FileOpException("Unable to load image format: " + e);
    } catch (IOException e) {
        throw new FileOpException("Unable to load image file: " + e);
    } catch (ServiceException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (DependencyException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

Example 9 with FileOpException

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

the class ImageJ1DocuImage method writeImage.

/* (non-Javadoc)
	 * @see digilib.image.DocuImageImpl#writeImage(java.lang.String, java.io.OutputStream)
	 */
@Override
public void writeImage(String mt, OutputStream ostream) throws ImageOpException, FileOpException {
    File outFile;
    String filext = ".jpg";
    if (mt.equals("image/png")) {
        filext = ".png";
    }
    try {
        outFile = File.createTempFile("imgj_temp", filext);
    } catch (IOException e) {
        throw new FileOpException(e.toString());
    }
    // save image to file
    logger.debug("writeImage: mt=" + mt);
    if (mt.equals("image/png")) {
        PNG_Writer writer = new PNG_Writer();
        try {
            img = new ImagePlus("Image", proc);
            writer.writeImage(img, outFile.getAbsolutePath(), 0);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    } else {
        img = new ImagePlus("Image", proc);
        JpegWriter.save(img, outFile.getAbsolutePath(), 70);
    }
    // now send file
    FileInputStream inFile = null;
    try {
        inFile = new FileInputStream(outFile);
        byte[] dataBuffer = new byte[4096];
        int len;
        while ((len = inFile.read(dataBuffer)) != -1) {
            // copy out file
            ostream.write(dataBuffer, 0, len);
        }
    } catch (IOException e) {
        throw new FileOpException(e.toString());
    } finally {
        try {
            if (inFile != null) {
                inFile.close();
            }
        } catch (IOException e) {
        // nothing to do
        }
    }
}

Example 10 with FileOpException

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

the class JAIDocuImage method writeImage.

/* Write the current image to an OutputStream. */
public void writeImage(String mt, OutputStream ostream) throws ImageOpException, FileOpException {
    try {
        // setup output
        ParameterBlock pb3 = new ParameterBlock();
        pb3.addSource(img);
        pb3.add(ostream);
        if (mt == "image/jpeg") {
            pb3.add("JPEG");
        } else if (mt == "image/png") {
            pb3.add("PNG");
        } else {
            // unknown mime type
            throw new ImageOpException("Unknown mime type: " + mt);
        }
        // render output
        JAI.create("encode", pb3);
    } catch (RuntimeException e) {
        // JAI likes to throw RuntimeExceptions
        throw new FileOpException("Error writing image: " + e);
    }
}