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

Example 1 with FileOpException

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

the class ImageJobDescription method getHiresSize.

/**
 * Return the size of the highest resolution image.
 *
 * @return
 * @throws IOException
 */
public ImageSize getHiresSize() throws IOException {
    // logger.debug("get_hiresSize()");
    if (hiresSize == null) {
        ImageSet fileset = getImageSet();
        ImageInput hiresFile = fileset.getBiggest();
        hiresSize = hiresFile.getSize();
        if (hiresSize == null) {
            throw new FileOpException("Can't get size from hires image file!");
        }
    }
    return hiresSize;
}

Example 2 with FileOpException

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

the class ImageLoaderDocuImage method identify.

/* 
     * Check image size and type and store in ImageInput
     * @see digilib.image.ImageInfoDocuImage#identify(digilib.io.ImageInput)
     */
public ImageInput identify(ImageInput input) throws IOException {
    ImageInput ii = null;
    if (!reuseReader) {
        // try parent method first
        ii = super.identify(input);
        if (ii != null) {
            return ii;
        }
    }
    logger.debug("identifying (ImageIO) " + input);
    try {
        /*
             * try ImageReader
             */
        reader = getReader(input);
        // set size
        ImageSize d = new ImageSize(reader.getWidth(0), reader.getHeight(0));
        input.setSize(d);
        // set mime type
        if (input.getMimetype() == null) {
            if (input.hasFile()) {
                String t = FileOps.mimeForFile(input.getFile());
                input.setMimetype(t);
            } else {
                // FIXME: is format name a mime type???
                String t = reader.getFormatName();
                input.setMimetype(t);
            }
        }
        return input;
    } catch (FileOpException e) {
        // maybe just our class doesn't know what to do
        logger.error("ImageLoaderDocuimage unable to identify: " + e);
        return null;
    } finally {
        if (!reuseReader && reader != null) {
            reader.dispose();
        }
    }
}

Example 3 with FileOpException

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

the class ImageLoaderDocuImage method writeImage.

/* 
     * (non-Javadoc)
     * @see digilib.image.DocuImageImpl#writeImage(java.lang.String, java.io.OutputStream)
     */
public void writeImage(String mt, OutputStream ostream) throws ImageOpException, FileOpException {
    logger.debug("writeImage");
    // setup output
    ImageWriter writer = null;
    ImageOutputStream imgout = null;
    try {
        imgout = ImageIO.createImageOutputStream(ostream);
        if (mt == "image/jpeg") {
            /*
                 * JPEG doesn't do transparency so we have to convert any RGBA
                 * image to RGB or we the client will think its CMYK :-( *Java2D
                 * BUG*
                 */
            if (img.getColorModel().hasAlpha()) {
                logger.debug("BARF: JPEG with transparency!!");
                BufferedImage rgbImg = new BufferedImage(img.getWidth(), img.getHeight(), BufferedImage.TYPE_INT_RGB);
                rgbImg.createGraphics().drawImage(img, null, 0, 0);
                img = rgbImg;
            }
            writer = ImageIO.getImageWritersByFormatName("jpeg").next();
            if (writer == null) {
                throw new ImageOpException("Unable to get JPEG writer");
            }
            ImageWriteParam param = writer.getDefaultWriteParam();
            if (quality > 1) {
                // change JPEG compression quality
                param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
                param.setCompressionQuality(0.9f);
            }
            writer.setOutput(imgout);
            // render output
            logger.debug("writing JPEG");
            writer.write(null, new IIOImage(img, null, null), param);
        } else if (mt == "image/png") {
            // render output
            writer = ImageIO.getImageWritersByFormatName("png").next();
            if (writer == null) {
                throw new ImageOpException("Unable to get PNG writer");
            }
            writer.setOutput(imgout);
            logger.debug("writing PNG");
            writer.write(img);
        } else {
            // unknown mime type
            throw new ImageOpException("Unknown mime type: " + mt);
        }
    } catch (IOException e) {
        logger.error("Error writing image:", e);
        throw new FileOpException("Error writing image!", e);
    } finally {
        if (writer != null) {
            writer.dispose();
        }
        if (imgout != null) {
            /* 
        		 * ImageOutputStream likes to keep ServletOutputStream and close it when disposed.
        		 * Thanks to Tom Van Wietmarschen's mail to tomcat-users on July 4, 2008!
        		 */
            try {
                imgout.close();
            } catch (IOException e) {
                logger.error("Error closing ImageOutputStream!", e);
            }
        }
    }
}

Example 4 with FileOpException

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

the class BioFormatsDocuImage method writeImage.

@Override
public void writeImage(String mt, OutputStream ostream) throws ImageOpException, FileOpException {
    logger.debug("writeImage");
    File outFile;
    String filext = ".jpg";
    if (mt.equals("image/png")) {
        filext = ".png";
    }
    try {
        outFile = File.createTempFile("biof_temp", filext);
    } catch (IOException e) {
        throw new FileOpException(e.toString());
    }
    // save image to file
    ImageWriter iw = new ImageWriter();
    /*
         * try { //iw.setMetadataRetrieve(new DummyMetadata());
         * //iw.setSeries(0); //iw.setId(outFile.getAbsolutePath());
         * //logger.debug("writer="+iw); } catch (FormatException e) { throw new
         * FileOpException(e.toString()); } catch (IOException e) { // TODO
         * Auto-generated catch block e.printStackTrace(); } /* if
         * (mt.endsWith("png")) { iw = }
         */
    BufferedImageWriter writer = BufferedImageWriter.makeBufferedImageWriter(iw);
    try {
        logger.debug("setting metadata " + meta);
        iw.setMetadataRetrieve(meta);
        logger.debug("writing to file  " + outFile);
        writer.setId(outFile.getAbsolutePath());
        logger.debug("fixing metadata " + meta);
        iw.setInterleaved(reader.isInterleaved());
        iw.setWriteSequentially(true);
        meta.setPixelsSizeX(new PositiveInteger(img.getWidth()), 0);
        meta.setPixelsSizeY(new PositiveInteger(img.getHeight()), 0);
        meta.setPixelsSizeC(new PositiveInteger(img.getColorModel().getNumComponents()), 0);
        logger.debug("saving image " + img);
        writer.saveImage(0, img);
        logger.debug("closing file");
        writer.close();
    } catch (FormatException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    } catch (IOException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }
    // 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 5 with FileOpException

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

the class JAIDocuImage method loadSubimage.

/* Load an image file into the Object. */
public void loadSubimage(ImageInput ii, Rectangle region, int subsample) throws FileOpException {
    logger.debug("loadSubimage");
    this.input = ii;
    if (ii.hasFile()) {
        img = JAI.create("fileload", ii.getFile().getAbsolutePath());
    } else if (ii.hasInputStream()) {
        img = JAI.create("stream", ii.getInputStream());
    } else {
        throw new FileOpException("unable to get data for image!");
    }
    if ((region.width < img.getWidth()) || (region.height < img.getHeight())) {
        // setup Crop
        ParameterBlock cp = new ParameterBlock();
        cp.addSource(img);
        cp.add((float) region.x);
        cp.add((float) region.y);
        cp.add((float) region.width);
        cp.add((float) region.height);
        logger.debug("loadSubimage: crop");
        img = JAI.create("crop", cp);
    }
    if (subsample > 1) {
        float sc = 1f / subsample;
        ParameterBlockJAI sp = new ParameterBlockJAI("scale");
        sp.addSource(img);
        sp.setParameter("xScale", sc);
        sp.setParameter("yScale", sc);
        sp.setParameter("interpolation", Interpolation.getInstance(Interpolation.INTERP_NEAREST));
        // scale
        logger.debug("loadSubimage: scale");
        img = JAI.create("scale", sp);
    }
}