Example usage for java.io FileInputStream getChannel

Introduction

In this page you can find the example usage for java.io FileInputStream getChannel.

Prototype

public FileChannel getChannel() 

Source Link

Document

Returns the unique java.nio.channels.FileChannel FileChannel object associated with this file input stream.

Usage

From source file:fr.acxio.tools.agia.tasks.FileCopyTaskletTest.java

@Test
public void testCannotEmptyOrigin() throws Exception {
    FileCopyTasklet aTasklet = new FileCopyTasklet();
    aTasklet.setOrigin(new FileSystemResource("src/test/resources/testFiles/input.csv"));
    aTasklet.setDestination(new FileSystemResource("target/input-copy8.csv"));
    aTasklet.execute(null, null);/*from  w  w w  . j a  v a 2 s  . co m*/

    File aOrigin = aTasklet.getDestination().getFile();
    assertTrue(aOrigin.exists());
    FileInputStream aInputStream = new FileInputStream(aOrigin);
    FileLock aLock = aInputStream.getChannel().lock(0L, Long.MAX_VALUE, true); // shared lock

    aTasklet.setEmptyOrigin(true);
    aTasklet.setOrigin(new FileSystemResource("target/input-copy8.csv"));
    aTasklet.setDestination(new FileSystemResource("target/input-copy9.csv"));
    try {
        aTasklet.execute(null, null);
        fail("Must throw a FileCopyException");
    } catch (FileCopyException e) {
        // Fallthrough
    } finally {
        aLock.release();
        aInputStream.close();
    }
}

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From source file:com.frostwire.gui.library.LibraryCoverArt.java

private Image retrieveImageFromM4A(String filename) {
    try {/*  ww  w  .  jav  a  2s .  c  o m*/
        FileInputStream fis = new FileInputStream(filename);
        try {
            FileChannel inFC = fis.getChannel();
            IsoFile iso = new IsoFile(inFC);

            Path p = new Path(iso);

            AppleDataBox data = (AppleDataBox) p.getPath("/moov/udta/meta/ilst/covr/data");
            if (data != null) {
                if ((data.getFlags() & 0x1) == 0x1) { // jpg
                    byte[] imageBytes = data.getData();
                    try {
                        return ImageIO.read(new ByteArrayInputStream(imageBytes, 0, imageBytes.length));
                    } catch (IIOException e) {
                        return JPEGImageIO.read(new ByteArrayInputStream(imageBytes, 0, imageBytes.length));
                    }
                } else if ((data.getFlags() & 0x2) == 0x2) { // png
                    byte[] imageBytes = data.getData();
                    try {
                        return ImageIO.read(new ByteArrayInputStream(imageBytes, 0, imageBytes.length));
                    } catch (IIOException e) {
                        return null;
                    }
                }
            }
        } finally {
            fis.close();
        }
    } catch (Throwable e) {
        //LOG.error("Unable to read cover art from m4a");
    }

    return null;
}

---

From source file:com.geekandroid.sdk.sample.crop.ResultActivity.java

private void copyFileToDownloads(Uri croppedFileUri) throws Exception {
    String downloadsDirectoryPath = Environment
            .getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath();
    String filename = String.format("%d_%s", Calendar.getInstance().getTimeInMillis(),
            croppedFileUri.getLastPathSegment());

    File saveFile = new File(downloadsDirectoryPath, filename);

    FileInputStream inStream = new FileInputStream(new File(croppedFileUri.getPath()));
    FileOutputStream outStream = new FileOutputStream(saveFile);
    FileChannel inChannel = inStream.getChannel();
    FileChannel outChannel = outStream.getChannel();
    inChannel.transferTo(0, inChannel.size(), outChannel);
    inStream.close();//  ww  w.ja  va2s  .com
    outStream.close();

    showNotification(saveFile);
}

---

From source file:eu.linda.analytics.formats.RDFInputFormat.java

@Override
public AbstractList importData4weka(String query_id, boolean isForRDFOutput, Analytics analytics) {

    String queryURI = connectionController.getQueryURI(query_id);

    helpfulFunctions.nicePrintMessage("import data from uri " + queryURI);

    Instances data = null;//ww w .  j  a  va  2 s .co m
    try {
        float timeToGetQuery = 0;
        long startTimeToGetQuery = System.currentTimeMillis();
        URL url = new URL(queryURI);
        if (!helpfulFunctions.isURLResponsive(url)) {
            return null;
        }
        File tmpfile4lindaquery = File.createTempFile("tmpfile4lindaquery" + query_id, ".tmp");
        FileUtils.copyURLToFile(url, tmpfile4lindaquery);

        System.out.println("Downloaded File Query: " + tmpfile4lindaquery);

        CSVLoader loader = new CSVLoader();
        loader.setSource(tmpfile4lindaquery);
        if (isForRDFOutput) {
            loader.setStringAttributes("1,2");
        }

        loader.setFieldSeparator(",");
        data = loader.getDataSet();
        data.setClassIndex(data.numAttributes() - 1);

        FileInputStream fis = null;
        try {

            fis = new FileInputStream(tmpfile4lindaquery);
            System.out.println("fis.getChannel().size() " + fis.getChannel().size());
            analytics.setData_size(analytics.getData_size() + fis.getChannel().size());
        } finally {
            fis.close();
        }

        // Get elapsed time in milliseconds
        long elapsedTimeToGetQueryMillis = System.currentTimeMillis() - startTimeToGetQuery;
        // Get elapsed time in seconds
        timeToGetQuery = elapsedTimeToGetQueryMillis / 1000F;
        analytics.setTimeToGet_data(analytics.getTimeToGet_data() + timeToGetQuery);
        System.out.println("timeToGetQuery" + timeToGetQuery);

        connectionController.updateLindaAnalyticsInputDataPerformanceTime(analytics);

    } catch (Exception ex) {
        Logger.getLogger(ArffInputFormat.class.getName()).log(Level.SEVERE, null, ex);
    }
    return data;

}

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From source file:tachyon.shell.command.CopyFromLocalCommand.java

private void copyPath(File src, TachyonURI dstPath) throws IOException {
    try {// w w  w. java2 s .com
        if (!src.isDirectory()) {
            // If the dstPath is a directory, then it should be updated to be the path of the file where
            // src will be copied to
            if (mFileSystem.exists(dstPath) && mFileSystem.getStatus(dstPath).isFolder()) {
                dstPath = dstPath.join(src.getName());
            }

            Closer closer = Closer.create();
            FileOutStream os = null;
            try {
                os = closer.register(mFileSystem.createFile(dstPath));
                FileInputStream in = closer.register(new FileInputStream(src));
                FileChannel channel = closer.register(in.getChannel());
                ByteBuffer buf = ByteBuffer.allocate(8 * Constants.MB);
                while (channel.read(buf) != -1) {
                    buf.flip();
                    os.write(buf.array(), 0, buf.limit());
                }
            } catch (IOException e) {
                // Close the out stream and delete the file, so we don't have an incomplete file lying
                // around
                if (os != null) {
                    os.cancel();
                    if (mFileSystem.exists(dstPath)) {
                        mFileSystem.delete(dstPath);
                    }
                }
                throw e;
            } finally {
                closer.close();
            }
        } else {
            mFileSystem.createDirectory(dstPath);
            List<String> errorMessages = Lists.newArrayList();
            String[] fileList = src.list();
            for (String file : fileList) {
                TachyonURI newPath = new TachyonURI(dstPath, new TachyonURI(file));
                File srcFile = new File(src, file);
                try {
                    copyPath(srcFile, newPath);
                } catch (IOException e) {
                    errorMessages.add(e.getMessage());
                }
            }
            if (errorMessages.size() != 0) {
                if (errorMessages.size() == fileList.length) {
                    // If no files were created, then delete the directory
                    if (mFileSystem.exists(dstPath)) {
                        mFileSystem.delete(dstPath);
                    }
                }
                throw new IOException(Joiner.on('\n').join(errorMessages));
            }
        }
    } catch (TachyonException e) {
        throw new IOException(e.getMessage());
    }
}

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From source file:net.praqma.jenkins.memorymap.parser.AbstractMemoryMapParser.java

protected CharSequence createCharSequenceFromFile(String charset, File f) throws IOException {
    String chosenCharset = charset;

    CharBuffer cbuf = null;// w  w  w  .j  av  a 2  s.  c  om
    FileInputStream fis = null;
    try {
        fis = new FileInputStream(f.getAbsolutePath());
        FileChannel fc = fis.getChannel();
        ByteBuffer bbuf = fc.map(FileChannel.MapMode.READ_ONLY, 0, (int) fc.size());

        if (!Charset.isSupported(chosenCharset)) {
            logger.warning(String.format("The charset %s is not supported", charset));
            cbuf = Charset.defaultCharset().newDecoder().decode(bbuf);
        } else {
            cbuf = Charset.forName(charset).newDecoder().decode(bbuf);
        }

    } catch (IOException ex) {
        throw ex;
    } finally {
        if (fis != null) {
            fis.close();
        }
    }
    return cbuf;
}

---

From source file:eu.linda.analytics.formats.RDFInputFormat.java

@Override
public Rengine importData4R(String query_id, boolean isForRDFOutput, Analytics analytics) {
    System.out.println(System.getProperty("java.library.path"));
    System.out.println("R_HOME" + System.getenv().get("R_HOME"));

    Rengine re = Rengine.getMainEngine();
    if (re == null) {
        //            re = new Rengine(new String[]{"--vanilla"}, false, null);
        String newargs[] = { "--no-save" };
        re = new Rengine(newargs, false, null);

    }/*from   ww  w.  j ava  2 s  .c  o m*/

    if (!re.waitForR()) {
        System.out.println("Cannot load R");
        System.out.println("is alive Rengine??" + re.isAlive());
    }

    String queryURI = connectionController.getQueryURI(query_id);

    helpfulFunctions.nicePrintMessage("import data from uri " + queryURI);
    try {
        float timeToGetQuery = 0;
        long startTimeToGetQuery = System.currentTimeMillis();
        URL url = new URL(queryURI);

        if (!helpfulFunctions.isURLResponsive(url)) {
            re.eval(" is_query_responsive <-FALSE ");
            System.out.println("is_query_responsive <-FALSE ");

        } else {
            re.eval("is_query_responsive <-TRUE  ");
            System.out.println("is_query_responsive <-TRUE ");

            File tmpfile4lindaquery = File.createTempFile("tmpfile4lindaquery" + query_id, ".tmp");
            FileUtils.copyURLToFile(url, tmpfile4lindaquery);

            re.eval(" loaded_data <- read.csv(file='" + tmpfile4lindaquery
                    + "', header=TRUE, sep=',', na.strings='---');");
            System.out.println(" loaded_data <- read.csv(file='" + tmpfile4lindaquery
                    + "', header=TRUE, sep=',', na.strings='---');");

            FileInputStream fis = null;
            try {

                fis = new FileInputStream(tmpfile4lindaquery);
                System.out.println("fis.getChannel().size() " + fis.getChannel().size());
                analytics.setData_size(analytics.getData_size() + fis.getChannel().size());
            } finally {
                fis.close();
            }
        }

        // Get elapsed time in milliseconds
        long elapsedTimeToGetQueryMillis = System.currentTimeMillis() - startTimeToGetQuery;
        // Get elapsed time in seconds
        timeToGetQuery = elapsedTimeToGetQueryMillis / 1000F;
        System.out.println("timeToGetQuery" + timeToGetQuery);
        analytics.setTimeToGet_data(analytics.getTimeToGet_data() + timeToGetQuery);

        connectionController.updateLindaAnalyticsInputDataPerformanceTime(analytics);

    } catch (Exception ex) {
        Logger.getLogger(ArffInputFormat.class.getName()).log(Level.SEVERE, null, ex);
    }
    return re;
}

---

From source file:com.yifanlu.PSXperiaTool.ZpakCreate.java

public void create(boolean noCompress) throws IOException {
    Logger.info("Generating zpak file from directory %s with compression = %b", mDirectory.getPath(),
            !noCompress);//from  ww w .  j a  v  a2  s. c o m
    IOFileFilter filter = new IOFileFilter() {
        public boolean accept(File file) {
            if (file.getName().startsWith(".")) {
                Logger.debug("Skipping file %s", file.getPath());
                return false;
            }
            return true;
        }

        public boolean accept(File file, String s) {
            if (s.startsWith(".")) {
                Logger.debug("Skipping file %s", file.getPath());
                return false;
            }
            return true;
        }
    };
    Iterator<File> it = FileUtils.iterateFiles(mDirectory, filter, TrueFileFilter.INSTANCE);
    ZipOutputStream out = new ZipOutputStream(mOut);
    out.setMethod(noCompress ? ZipEntry.STORED : ZipEntry.DEFLATED);
    while (it.hasNext()) {
        File current = it.next();
        FileInputStream in = new FileInputStream(current);
        ZipEntry zEntry = new ZipEntry(
                current.getPath().replace(mDirectory.getPath(), "").substring(1).replace("\\", "/"));
        if (noCompress) {
            zEntry.setSize(in.getChannel().size());
            zEntry.setCompressedSize(in.getChannel().size());
            zEntry.setCrc(getCRC32(current));
        }
        out.putNextEntry(zEntry);
        Logger.verbose("Adding file %s", current.getPath());
        int n;
        while ((n = in.read(mBuffer)) != -1) {
            out.write(mBuffer, 0, n);
        }
        in.close();
        out.closeEntry();
    }
    out.close();
    Logger.debug("Done with ZPAK creation.");
}

---

From source file:org.dataconservancy.dcs.access.server.TransformerServiceImpl.java

@Override
public String fgdcToHtml(String inputUrl, String format) {

    if (format.contains("fgdc")) {
        TransformerFactory factory = TransformerFactory.newInstance();
        Source xslt = new StreamSource(new File(homeDir + "queryFgdcResult.xsl"));
        Transformer transformer;//from  w w w .ja v a2  s  .  co m
        try {
            transformer = factory.newTransformer(xslt);
            String inputPath = homeDir + UUID.randomUUID().toString() + "fgdcinput.xml";
            saveUrl(inputPath, inputUrl);
            Source text = new StreamSource(new File(inputPath));
            String outputPath = homeDir + UUID.randomUUID().toString() + "fgdcoutput.html";
            File outputFile = new File(outputPath);
            transformer.transform(text, new StreamResult(outputFile));
            FileInputStream stream = new FileInputStream(new File(outputPath));
            try {
                FileChannel fc = stream.getChannel();
                MappedByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
                /* Instead of using default, pass in a decoder. */
                return Charset.defaultCharset().decode(bb).toString();
            } finally {
                stream.close();
            }

        } catch (TransformerConfigurationException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (TransformerException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    } else {
        try {
            String inputPath =
                    //getServletContext().getContextPath()+"/xml/"+
                    homeDir + UUID.randomUUID().toString() + "fgdcinput.xml";
            saveUrl(inputPath, inputUrl);
            Source text = new StreamSource(new File(
                    //"/home/kavchand/Desktop/fgdc.xml"
                    inputPath));
            FileInputStream stream = new FileInputStream(new File(inputPath));

            FileChannel fc = stream.getChannel();
            MappedByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
            /* Instead of using default, pass in a decoder. */
            return Charset.defaultCharset().decode(bb).toString();
        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    return null;
}

---

From source file:org.granite.grails.web.GrailsWebSWFServlet.java

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    request.setAttribute(GrailsApplicationAttributes.REQUEST_SCOPE_ID, grailsAttributes);

    // Get the name of the Groovy script (intern the name so that we can lock on it)
    String pageName = "/swf" + request.getServletPath();
    Resource requestedFile = getResourceForUri(pageName);
    File swfFile = requestedFile.getFile();
    if (swfFile == null || !swfFile.exists()) {
        response.sendError(404, "\"" + pageName + "\" not found.");
        return;//from  w w w .  ja v  a2  s  .  c  o  m
    }
    response.setContentType("application/x-shockwave-flash");
    response.setContentLength((int) swfFile.length());
    response.setBufferSize((int) swfFile.length());
    response.setDateHeader("Expires", 0);

    FileInputStream is = null;
    FileChannel inChan = null;
    try {
        is = new FileInputStream(swfFile);
        OutputStream os = response.getOutputStream();
        inChan = is.getChannel();
        long fSize = inChan.size();
        MappedByteBuffer mBuf = inChan.map(FileChannel.MapMode.READ_ONLY, 0, fSize);
        byte[] buf = new byte[(int) fSize];
        mBuf.get(buf);
        os.write(buf);
    } finally {
        if (is != null) {
            IOUtils.closeQuietly(is);
        }
        if (inChan != null) {
            try {
                inChan.close();
            } catch (IOException ignored) {
            }
        }
    }
}

---

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