Example usage for java.nio.channels FileChannel close

List of usage examples for java.nio.channels FileChannel close

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Introduction

In this page you can find the example usage for java.nio.channels FileChannel close.

Prototype

public final void close() throws IOException

Source Link

Document

Closes this channel.

Usage

From source file:com.aimluck.eip.services.storage.impl.ALDefaultStorageHanlder.java

@Override
public boolean copyFile(String srcRootPath, String srcDir, String srcFileName, String destRootPath,
        String destDir, String destFileName) {

    File srcPath = new File(srcRootPath + separator() + Database.getDomainName() + separator() + srcDir);

    if (!srcPath.exists()) {
        try {/*from w ww  . j  av  a2s .co m*/
            srcPath.mkdirs();
        } catch (Exception e) {
            logger.error("Can't create directory...:" + srcPath);
            return false;
        }
    }

    File destPath = new File(destRootPath + separator() + Database.getDomainName() + separator() + destDir);

    if (!destPath.exists()) {
        try {
            destPath.mkdirs();
        } catch (Exception e) {
            logger.error("Can't create directory...:" + destPath);
            return false;
        }
    }

    File from = new File(srcPath + separator() + srcFileName);
    File to = new File(destPath + separator() + destFileName);

    boolean res = true;
    FileChannel srcChannel = null;
    FileChannel destChannel = null;

    try {
        srcChannel = new FileInputStream(from).getChannel();
        destChannel = new FileOutputStream(to).getChannel();
        destChannel.transferFrom(srcChannel, 0, srcChannel.size());
    } catch (Exception ex) {
        logger.error("ALDefaultStorageHanlder.copyFile", ex);
        res = false;
    } finally {
        if (destChannel != null) {
            try {
                destChannel.close();
            } catch (IOException ex) {
                logger.error("ALDefaultStorageHanlder.copyFile", ex);
                res = false;
            }
        }
        if (srcChannel != null) {
            try {
                srcChannel.close();
            } catch (IOException ex) {
                logger.error("ALDefaultStorageHanlder.copyFile", ex);
                res = false;
            }
        }
    }

    return res;
}

From source file:org.kie.commons.java.nio.fs.file.SimpleFileSystemProviderTest.java

@Test
public void checkNewFileChannel() throws IOException {
    final File temp = File.createTempFile("foo", "bar");
    final SimpleFileSystemProvider fsProvider = new SimpleFileSystemProvider();

    final Path path = GeneralPathImpl.newFromFile(fsProvider.getFileSystem(URI.create("file:///")), temp);

    final FileChannel stream = fsProvider.newFileChannel(path, null);

    assertThat(stream).isNotNull();/* w w w.  j  a  v  a2 s.  c o  m*/
    stream.close();
}

From source file:com.aimluck.eip.services.storage.impl.ALDefaultStorageHandler.java

@Override
public boolean copyFile(String srcRootPath, String srcDir, String srcFileName, String destRootPath,
        String destDir, String destFileName) {

    File srcPath = new File(
            getAbsolutePath(srcRootPath) + separator() + Database.getDomainName() + separator() + srcDir);

    if (!srcPath.exists()) {
        try {//from  w w  w . j  a  v a  2 s  . com
            srcPath.mkdirs();
        } catch (Exception e) {
            logger.error("Can't create directory...:" + srcPath);
            return false;
        }
    }

    File destPath = new File(
            getAbsolutePath(destRootPath) + separator() + Database.getDomainName() + separator() + destDir);

    if (!destPath.exists()) {
        try {
            destPath.mkdirs();
        } catch (Exception e) {
            logger.error("Can't create directory...:" + destPath);
            return false;
        }
    }

    File from = new File(srcPath + separator() + srcFileName);
    File to = new File(destPath + separator() + destFileName);

    boolean res = true;
    FileChannel srcChannel = null;
    FileChannel destChannel = null;

    try {
        srcChannel = new FileInputStream(from).getChannel();
        destChannel = new FileOutputStream(to).getChannel();
        destChannel.transferFrom(srcChannel, 0, srcChannel.size());
    } catch (Exception ex) {
        logger.error("ALDefaultStorageHandler.copyFile", ex);
        res = false;
    } finally {
        if (destChannel != null) {
            try {
                destChannel.close();
            } catch (IOException ex) {
                logger.error("ALDefaultStorageHandler.copyFile", ex);
                res = false;
            }
        }
        if (srcChannel != null) {
            try {
                srcChannel.close();
            } catch (IOException ex) {
                logger.error("ALDefaultStorageHandler.copyFile", ex);
                res = false;
            }
        }
    }

    return res;
}

From source file:org.apache.solr.core.CoreContainer.java

/** Copies a src file to a dest file:
 *  used to circumvent the platform discrepancies regarding renaming files.
 *///  w w w .  jav a 2s .  c  o m
public static void fileCopy(File src, File dest) throws IOException {
    IOException xforward = null;
    FileInputStream fis = null;
    FileOutputStream fos = null;
    FileChannel fcin = null;
    FileChannel fcout = null;
    try {
        fis = new FileInputStream(src);
        fos = new FileOutputStream(dest);
        fcin = fis.getChannel();
        fcout = fos.getChannel();
        // do the file copy 32Mb at a time
        final int MB32 = 32 * 1024 * 1024;
        long size = fcin.size();
        long position = 0;
        while (position < size) {
            position += fcin.transferTo(position, MB32, fcout);
        }
    } catch (IOException xio) {
        xforward = xio;
    } finally {
        if (fis != null)
            try {
                fis.close();
                fis = null;
            } catch (IOException xio) {
            }
        if (fos != null)
            try {
                fos.close();
                fos = null;
            } catch (IOException xio) {
            }
        if (fcin != null && fcin.isOpen())
            try {
                fcin.close();
                fcin = null;
            } catch (IOException xio) {
            }
        if (fcout != null && fcout.isOpen())
            try {
                fcout.close();
                fcout = null;
            } catch (IOException xio) {
            }
    }
    if (xforward != null) {
        throw xforward;
    }
}

From source file:org.cloudata.core.commitlog.CommitLogServer.java

public int readLastLogFromMarkedPosition(String dirName) {
    File logFile = getLogFile(dirName);
    File indexFile = getLogIndexFile(dirName);

    FileChannel ch = null;// w  ww  . jav  a 2s .  c o m
    try {
        long index = 0;

        if (logFile.exists() == false) {
            LOG.warn("A directory [" + dirName + "] or log file does not exist");
            return -1;
        } else if (indexFile.exists()) {
            FileChannel indexChannel = new FileInputStream(indexFile).getChannel();
            index = CommitLogFileChannel.readLastIndex(indexChannel);
            LOG.info("index of dir [" + dirName + "] : " + index);
            indexChannel.close();
        }

        FileInputStream in = new FileInputStream(logFile);
        ch = in.getChannel();
        ch.position(index);
    } catch (IOException e) {
        LOG.error("Fail to read logs", e);
        return -1;
    }

    return startFileTransferChannel(dirName, ch);
}

From source file:sos.scheduler.editor.app.WebDavDialogListener.java

public void deleteProfile(String profilename) throws Exception {
    try {//from   www  . j av  a 2  s. c o m
        setCurrProfileName(profilename);
        //java.util.Properties profile = getCurrProfile();
        String filename = configFile;

        byte[] b = getBytesFromFile(new File(filename));
        String s = new String(b);
        //System.out.println(s);

        int pos1 = s.indexOf("[" + PREFIX + " " + profilename + "]");
        int pos2 = s.indexOf("[", pos1 + 1);

        if (pos1 == -1) {
            //System.out.println("profile nicht gefunden");
            pos1 = s.length();
            pos2 = -1;
            return;
        }

        if (pos2 == -1)
            pos2 = s.length();

        String s2 = s.substring(0, pos1) + s.substring(pos2);

        java.nio.ByteBuffer bbuf = java.nio.ByteBuffer.wrap(s2.getBytes());

        java.io.File file = new java.io.File(filename);

        boolean append = false;

        java.nio.channels.FileChannel wChannel = new java.io.FileOutputStream(file, append).getChannel();

        wChannel.write(bbuf);

        wChannel.close();

    } catch (java.io.IOException e) {

        try {
            new ErrorLog("error in " + sos.util.SOSClassUtil.getMethodName() + " ; could not delete profile="
                    + profilename, e);
        } catch (Exception ee) {
            //tu nichts
        }
        hasError = true;
        throw new Exception(e.getMessage());

    } finally {

        cboConnectname.setItems(getProfileNames());
        cboConnectname.setText(currProfileName);
        txtURL.setText(currProfile.getProperty("url"));
    }

}

From source file:org.oscarehr.document.web.ManageDocumentAction.java

public File createCacheVersion(Document d, int pageNum) throws Exception {

    File documentCacheDir = new File(EDocUtil.getCacheDirectory());
    File file = new File(EDocUtil.getDocumentPath(d.getDocfilename()));

    RandomAccessFile raf = new RandomAccessFile(file, "r");
    FileChannel channel = raf.getChannel();
    ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
    PDFFile pdffile = new PDFFile(buf);
    if (raf != null)
        raf.close();//from ww w.  j a  v  a  2 s  .c  o  m
    if (channel != null)
        channel.close();
    // draw the first page to an image
    PDFPage ppage = pdffile.getPage(pageNum);

    log.debug("WIDTH " + (int) ppage.getBBox().getWidth() + " height " + (int) ppage.getBBox().getHeight());

    // get the width and height for the doc at the default zoom
    Rectangle rect = new Rectangle(0, 0, (int) ppage.getBBox().getWidth(), (int) ppage.getBBox().getHeight());

    log.debug("generate the image");
    Image img = ppage.getImage(rect.width, rect.height, // width & height
            rect, // clip rect
            null, // null for the ImageObserver
            true, // fill background with white
            true // block until drawing is done
    );

    log.debug("about to Print to stream");
    File outfile = new File(documentCacheDir, d.getDocfilename() + "_" + pageNum + ".png");

    OutputStream outs = null;
    try {
        outs = new FileOutputStream(outfile);

        RenderedImage rendImage = (RenderedImage) img;
        ImageIO.write(rendImage, "png", outs);
        outs.flush();
    } finally {
        if (outs != null)
            outs.close();
    }
    return outfile;

}

From source file:org.alfresco.repo.content.AbstractContentReader.java

/**
 * {@inheritDoc}/* w ww . ja  v a  2  s.  c o  m*/
 */
public FileChannel getFileChannel() throws ContentIOException {
    /*
     * Where the underlying support is not present for this method, a temporary
     * file will be used as a substitute.  When the write is complete, the
     * results are copied directly to the underlying channel.
     */

    // get the underlying implementation's best readable channel
    channel = getReadableChannel();
    // now use this channel if it can provide the random access, otherwise spoof it
    FileChannel clientFileChannel = null;
    if (channel instanceof FileChannel) {
        // all the support is provided by the underlying implementation
        clientFileChannel = (FileChannel) channel;
        // debug
        if (logger.isDebugEnabled()) {
            logger.debug("Content reader provided direct support for FileChannel: \n" + "   reader: " + this);
        }
    } else {
        // No random access support is provided by the implementation.
        // Spoof it by providing a 2-stage read from a temp file
        File tempFile = TempFileProvider.createTempFile("random_read_spoof_", ".bin");
        FileContentWriter spoofWriter = new FileContentWriter(tempFile);
        // pull the content in from the underlying channel
        FileChannel spoofWriterChannel = spoofWriter.getFileChannel(false);
        try {
            long spoofFileSize = this.getSize();
            spoofWriterChannel.transferFrom(channel, 0, spoofFileSize);
        } catch (IOException e) {
            throw new ContentIOException(
                    "Failed to copy from permanent channel to spoofed temporary channel: \n" + "   reader: "
                            + this + "\n" + "   temp: " + spoofWriter,
                    e);
        } finally {
            try {
                spoofWriterChannel.close();
            } catch (IOException e) {
            }
        }
        // get a reader onto the spoofed content
        final ContentReader spoofReader = spoofWriter.getReader();
        // Attach a listener
        // - ensure that the close call gets propogated to the underlying channel
        ContentStreamListener spoofListener = new ContentStreamListener() {
            public void contentStreamClosed() throws ContentIOException {
                try {
                    channel.close();
                } catch (IOException e) {
                    throw new ContentIOException("Failed to close underlying channel", e);
                }
            }
        };
        spoofReader.addListener(spoofListener);
        // we now have the spoofed up channel that the client can work with
        clientFileChannel = spoofReader.getFileChannel();
        // debug
        if (logger.isDebugEnabled()) {
            logger.debug("Content writer provided indirect support for FileChannel: \n" + "   writer: " + this
                    + "\n" + "   temp writer: " + spoofWriter);
        }
    }
    // the file is now available for random access
    return clientFileChannel;
}

From source file:sos.scheduler.editor.app.WebDavDialogListener.java

public void saveProfile(boolean savePassword) {
    try {/* www.j av a 2 s . c o m*/

        java.util.Properties profile = getCurrProfile();
        String filename = configFile;
        String profilename = currProfileName;

        byte[] b = getBytesFromFile(new File(filename));
        String s = new String(b);
        //System.out.println(s);

        int pos1 = s.indexOf("[" + PREFIX + profilename + "]");
        int pos2 = s.indexOf("[", pos1 + 1);

        if (pos1 == -1) {
            //System.out.println("profile nicht gefunden");
            pos1 = s.length();
            pos2 = -1;
        }

        if (pos2 == -1)
            pos2 = s.length();

        String s2 = s.substring(0, pos1);

        s2 = s2 + "[" + PREFIX + profilename + "]\n\n";
        s2 = s2 + "url=" + sosString.parseToString(profile.get("url")) + "\n";
        s2 = s2 + "user=" + sosString.parseToString(profile.get("user")) + "\n";
        try {
            if (savePassword && sosString.parseToString(profile.get("password")).length() > 0) {
                String pass = String.valueOf(SOSUniqueID.get());

                Options.setProperty("profile.timestamp." + profilename, pass);
                Options.saveProperties();

                if (pass.length() > 8) {
                    pass = pass.substring(pass.length() - 8);
                }

                String encrypt = SOSCrypt.encrypt(pass, sosString.parseToString(profile.get("password")));
                s2 = s2 + "password=" + encrypt + "\n";

                profile.put("password", encrypt);

                this.password = encrypt;

                getProfiles().put(profilename, profile);
            }
        } catch (Exception e) {
            new ErrorLog("error in " + sos.util.SOSClassUtil.getMethodName() + " ; ..could not encrypt.", e);
            throw e;
        }

        s2 = s2 + "localdirectory=" + sosString.parseToString(profile.get("localdirectory")) + "\n";
        s2 = s2 + "save_password=" + sosString.parseToString(profile.get("save_password")) + "\n";
        s2 = s2 + "protocol=" + sosString.parseToString(profile.get("protocol")) + "\n";
        s2 = s2 + "use_proxy=" + sosString.parseToString(profile.get("use_proxy")) + "\n";
        s2 = s2 + "proxy_server=" + sosString.parseToString(profile.get("proxy_server")) + "\n";
        s2 = s2 + "proxy_port=" + sosString.parseToString(profile.get("proxy_port")) + "\n";
        s2 = s2 + "\n\n";

        s2 = s2 + s.substring(pos2);

        // System.out.println("+++++++++++++++++++++++++++++++++++");         
        // System.out.println(s2);
        // System.out.println("+++++++++++++++++++++++++++++++++++");

        java.nio.ByteBuffer bbuf = java.nio.ByteBuffer.wrap(s2.getBytes());

        java.io.File file = new java.io.File(filename);

        boolean append = false;

        java.nio.channels.FileChannel wChannel = new java.io.FileOutputStream(file, append).getChannel();

        wChannel.write(bbuf);

        wChannel.close();

        /*} catch (java.io.IOException e) {
        hasError = true;
        MainWindow.message("could not save configurations File: " + configFile + ": cause:\n" + e.getMessage(), SWT.ICON_WARNING);
         */
    } catch (Exception e) {
        try {
            new ErrorLog("error in " + sos.util.SOSClassUtil.getMethodName()
                    + " ; could not save configurations File: " + configFile, e);
        } catch (Exception ee) {
            //tu nichts
        }
        hasError = true;
        MainWindow.message("could not save configurations File: " + configFile + ": cause:\n" + e.getMessage(),
                SWT.ICON_WARNING);
    } finally {

        cboConnectname.setItems(getProfileNames());
        cboConnectname.setText(currProfileName);
        txtURL.setText(currProfile.getProperty("url"));
    }

}

From source file:com.intervigil.micdroid.MainActivity.java

@Override
public void onExport(Recording r) {
    if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
        Log.w(TAG, "onExport: External media is not available");
        Toast.makeText(mContext, R.string.recording_options_export_external_media_unavailable,
                Toast.LENGTH_SHORT).show();
        return;//from  w ww  .  java2s  . c o m
    }
    File externalMusicDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC);
    if (!externalMusicDir.exists() && !externalMusicDir.mkdirs()) {
        Log.e(TAG, "onExport: Failed to create external music directory");
        Toast.makeText(mContext, R.string.recording_options_export_external_music_dir_unavailable,
                Toast.LENGTH_SHORT).show();
        return;
    }

    File exported = new File(externalMusicDir, r.getName());
    FileChannel srcChannel = null;
    FileChannel dstChannel = null;
    try {
        srcChannel = mContext.openFileInput(r.getName()).getChannel();
        dstChannel = new FileOutputStream(exported).getChannel();

        srcChannel.transferTo(0, srcChannel.size(), dstChannel);

        Toast.makeText(mContext, R.string.recording_options_export_complete, Toast.LENGTH_SHORT).show();
    } catch (IOException e) {
        Log.e(TAG, "onExport: Failed to export file: " + r.getName());
        e.printStackTrace();
        Toast.makeText(mContext, R.string.recording_options_export_copy_error, Toast.LENGTH_SHORT).show();
    } finally {
        try {
            if (srcChannel != null) {
                srcChannel.close();
            }
            if (dstChannel != null) {
                dstChannel.close();
            }
        } catch (IOException e) {
            // Do nothing
        }
    }
}