Example usage for javax.imageio.stream FileImageInputStream read

Introduction

In this page you can find the example usage for javax.imageio.stream FileImageInputStream read.

Prototype

public int read(byte[] b) throws IOException 

Source Link

Document

A convenience method that calls read(b, 0, b.length) .

Usage

From source file:com.bc.util.io.FileUtils.java

public static void copy(File source, File target) throws IOException {
    final byte[] buffer = new byte[ONE_KB * ONE_KB];
    int bytesRead;

    FileImageInputStream sourceStream = null;
    FileImageOutputStream targetStream = null;

    try {/*ww w  .ja v a  2s  . c  o m*/
        final File targetDir = target.getParentFile();
        if (!targetDir.isDirectory()) {
            if (!targetDir.mkdirs()) {
                throw new IOException("failed to create target directory: " + targetDir.getAbsolutePath());
            }
        }
        target.createNewFile();

        sourceStream = new FileImageInputStream(source);
        targetStream = new FileImageOutputStream(target);
        while ((bytesRead = sourceStream.read(buffer)) >= 0) {
            targetStream.write(buffer, 0, bytesRead);
        }
    } finally {
        if (sourceStream != null) {
            sourceStream.close();
        }
        if (targetStream != null) {
            targetStream.flush();
            targetStream.close();
        }
    }
}

---

From source file:com.aurel.track.admin.customize.category.report.execute.ReportExecuteAction.java

/**
 * Writes the preview image into the servlet response
 * @return//w  ww . j  a va 2s  .c o m
 */
public String showPreviewImage() {
    File imgFile = null;
    if (!leaf) {

        String folderDirectory = "";
        if ("projects-ticon".equals(iconCls)) {
            folderDirectory = ApplicationBean.getInstance().getServletContext().getRealPath(
                    "/" + Constants.DESIGN_DIRECTORY + "/" + Constants.DEFAULTDESIGNPATH + "/img/project.png");
        } else {
            folderDirectory = ApplicationBean.getInstance().getServletContext().getRealPath(
                    "/" + Constants.DESIGN_DIRECTORY + "/" + Constants.DEFAULTDESIGNPATH + "/img/folder.png");
        }
        imgFile = new File(folderDirectory);
    } else {
        File templateDir = ReportBL.getDirTemplate(templateID);
        String imageName = (String) descriptionMap.get(IDescriptionAttributes.PREVIEW_GIF);
        imgFile = new File(templateDir, imageName);
    }
    if (templateID != null) {
        if (imgFile != null && imgFile.exists()) {
            try {
                FileImageInputStream input = new FileImageInputStream(imgFile);
                ByteArrayOutputStream output = new ByteArrayOutputStream();
                byte[] buf = new byte[1024];
                byte[] data;
                int numBytesRead;
                while ((numBytesRead = input.read(buf)) != -1) {
                    output.write(buf, 0, numBytesRead);
                }
                data = output.toByteArray();
                output.close();
                input.close();
                servletResponse.setContentType("image/gif");
                OutputStream outputStream = servletResponse.getOutputStream();
                outputStream.write(data);
                outputStream.flush();
            } catch (Exception e) {
                LOGGER.warn("Getting the preview image failed with " + e.getMessage());
                LOGGER.debug(ExceptionUtils.getStackTrace(e));
            }
        }
    }
    return null;
}

---

From source file:com.lynk.hrm.ui.dialog.InfoEmployee.java

private void startRead() {
    new SwingWorker<String, Void>() {
        @Override/*  w ww.  ja v  a  2  s.  co  m*/
        protected String doInBackground() throws Exception {
            int result;
            IdCard idCard = new IdCard();
            String photoPath = System.getProperty("user.dir") + "/temp/" + "idCard.bmp";
            WString imageFile = new WString(photoPath);
            result = IdCardLibrary.INSTANCE.OpenCardReader(0, 4, 115200);
            if (result != 0) {
                showErrorMsg(IdCard.getErrorMsg(result));
                return null;
            }
            try {
                result = IdCardLibrary.INSTANCE.GetPersonMsgW(idCard, imageFile);
                if (result == 0) {
                    uiName.setText(idCard.getName());
                    uiNamePy.setText(PinyinUtil.getPinpin(idCard.getName()));
                    uiIdCard.setText(idCard.getCardId());
                    uiGender.setText(idCard.getSex());
                    uiBirthday.setText(idCard.getBirthday());
                    uiAge.setText(Integer.toString(Utils.getAge(idCard.getBirthday())));
                    uiCensusAddress.setText(idCard.getAddress());

                    RenderedImage imgOri = ImageIO.read(new File(photoPath));
                    File imgFile = File.createTempFile("photo_", ".png",
                            new File(System.getProperty("user.dir") + "/temp"));
                    ImageIO.write(imgOri, "png", imgFile);

                    uiPhoto.setImage(imgFile.getPath());
                    uiPhoto.putClientProperty("path", imgFile.getPath());
                    FileImageInputStream fiis = new FileImageInputStream(new File(imgFile.getPath()));
                    byte[] photoByte = new byte[(int) fiis.length()];
                    fiis.read(photoByte);
                    fiis.flush();
                    fiis.close();
                    uiPhoto.putClientProperty("photo", photoByte);

                    IdCardLibrary.INSTANCE.CloseCardReader();
                }
                Thread.sleep(1000);
            } catch (Exception e) {
                showErrorMsg(e);
            }
            return null;
        }
    }.execute();
}

---