Examples with TransientFileFactory org.apache.jackrabbit.util.TransientFileFactory used on opensource projects

Example 1 with TransientFileFactory

use of org.apache.jackrabbit.util.TransientFileFactory in project jackrabbit by apache.

the class BufferedStringValue method append.

/**
     * Append a portion of an array of characters.
     *
     * @param chars  the characters to be appended
     * @param start  the index of the first character to append
     * @param len the number of characters to append
     * @throws IOException if an I/O error occurs
     */
public void append(char[] chars, int start, int len) throws IOException {
    if (buffer != null) {
        if (this.length + len > MAX_BUFFER_SIZE) {
            // threshold for keeping data in memory exceeded;
            // create temp file and spool buffer contents
            TransientFileFactory fileFactory = TransientFileFactory.getInstance();
            tmpFile = fileFactory.createTransientFile("txt", null, null);
            BufferedOutputStream fout = new BufferedOutputStream(new FileOutputStream(tmpFile));
            writer = new OutputStreamWriter(fout, "UTF-8");
            writer.write(buffer.toString());
            writer.write(chars, start, len);
            // reset the in-memory buffer
            buffer = null;
        } else {
            buffer.write(chars, start, len);
        }
    } else if (tmpFile != null) {
        writer.write(chars, start, len);
    } else {
        throw new IOException("this instance has already been disposed");
    }
    length += len;
}

Example 2 with TransientFileFactory

use of org.apache.jackrabbit.util.TransientFileFactory in project jackrabbit by apache.

the class DatabaseFileSystem method getOutputStream.

/**
     * {@inheritDoc}
     */
public OutputStream getOutputStream(final String filePath) throws FileSystemException {
    if (!initialized) {
        throw new IllegalStateException("not initialized");
    }
    FileSystemPathUtil.checkFormat(filePath);
    final String parentDir = FileSystemPathUtil.getParentDir(filePath);
    final String name = FileSystemPathUtil.getName(filePath);
    if (!isFolder(parentDir)) {
        throw new FileSystemException("path not found: " + parentDir);
    }
    if (isFolder(filePath)) {
        throw new FileSystemException("path denotes folder: " + filePath);
    }
    try {
        TransientFileFactory fileFactory = TransientFileFactory.getInstance();
        final File tmpFile = fileFactory.createTransientFile("bin", null, null);
        return new FilterOutputStream(new FileOutputStream(tmpFile)) {

            public void write(byte[] bytes, int off, int len) throws IOException {
                out.write(bytes, off, len);
            }

            public void close() throws IOException {
                out.flush();
                ((FileOutputStream) out).getFD().sync();
                out.close();
                InputStream in = null;
                try {
                    if (isFile(filePath)) {
                        synchronized (updateDataSQL) {
                            long length = tmpFile.length();
                            in = new FileInputStream(tmpFile);
                            conHelper.exec(updateDataSQL, new Object[] { new StreamWrapper(in, length), new Long(System.currentTimeMillis()), new Long(length), parentDir, name });
                        }
                    } else {
                        synchronized (insertFileSQL) {
                            long length = tmpFile.length();
                            in = new FileInputStream(tmpFile);
                            conHelper.exec(insertFileSQL, new Object[] { parentDir, name, new StreamWrapper(in, length), new Long(System.currentTimeMillis()), new Long(length) });
                        }
                    }
                } catch (Exception e) {
                    IOException ioe = new IOException(e.getMessage());
                    ioe.initCause(e);
                    throw ioe;
                } finally {
                    if (in != null) {
                        in.close();
                    }
                    // temp file can now safely be removed
                    tmpFile.delete();
                }
            }
        };
    } catch (Exception e) {
        String msg = "failed to open output stream to file: " + filePath;
        log.error(msg, e);
        throw new FileSystemException(msg, e);
    }
}

Example 3 with TransientFileFactory

use of org.apache.jackrabbit.util.TransientFileFactory in project jackrabbit by apache.

the class SessionImporter method buildQValue.

/**
     *
     * @param tv
     * @param targetType
     * @param resolver The name/path resolver used to build a <code>QValue</code>.
     * @return
     * @throws RepositoryException
     */
private QValue buildQValue(TextValue tv, int targetType, NamePathResolver resolver) throws RepositoryException {
    QValue iv;
    try {
        switch(targetType) {
            case PropertyType.BINARY:
                // base64 encoded BINARY type
                if (tv.length() < 0x10000) {
                    // < 65kb: deserialize BINARY type in memory
                    ByteArrayOutputStream baos = new ByteArrayOutputStream();
                    Base64.decode(tv.retrieve(), baos);
                    // no need to close ByteArrayOutputStream
                    //baos.close();
                    iv = session.getQValueFactory().create(baos.toByteArray());
                } else {
                    // >= 65kb: deserialize BINARY type
                    // using Reader and temporary file
                    TransientFileFactory fileFactory = TransientFileFactory.getInstance();
                    File tmpFile = fileFactory.createTransientFile("bin", null, null);
                    FileOutputStream out = new FileOutputStream(tmpFile);
                    Reader reader = tv.reader();
                    try {
                        Base64.decode(reader, out);
                    } finally {
                        reader.close();
                        out.close();
                    }
                    iv = session.getQValueFactory().create(tmpFile);
                }
                break;
            default:
                // build iv using namespace context of xml document
                Value v = ValueHelper.convert(tv.retrieve(), targetType, session.getValueFactory());
                iv = ValueFormat.getQValue(v, resolver, session.getQValueFactory());
                break;
        }
        return iv;
    } catch (IOException e) {
        String msg = "failed to retrieve serialized value";
        log.debug(msg, e);
        throw new RepositoryException(msg, e);
    }
}

Example 4 with TransientFileFactory

use of org.apache.jackrabbit.util.TransientFileFactory in project jackrabbit-oak by apache.

the class BufferedStringValue method append.

/**
     * Append a portion of an array of characters.
     *
     * @param chars the characters to be appended
     * @param start the index of the first character to append
     * @param len   the number of characters to append
     * @throws IOException if an I/O error occurs
     */
public void append(char[] chars, int start, int len) throws IOException {
    if (buffer != null) {
        if (this.length + len > MAX_BUFFER_SIZE) {
            // threshold for keeping data in memory exceeded;
            // create temp file and spool buffer contents
            TransientFileFactory fileFactory = TransientFileFactory.getInstance();
            tmpFile = fileFactory.createTransientFile("txt", null, null);
            BufferedOutputStream fout = new BufferedOutputStream(new FileOutputStream(tmpFile));
            writer = new OutputStreamWriter(fout, "UTF-8");
            writer.write(buffer.toString());
            writer.write(chars, start, len);
            // reset the in-memory buffer
            buffer = null;
        } else {
            buffer.write(chars, start, len);
        }
    } else if (tmpFile != null) {
        writer.write(chars, start, len);
    } else {
        throw new IOException("this instance has already been disposed");
    }
    length += len;
}

Example 5 with TransientFileFactory

use of org.apache.jackrabbit.util.TransientFileFactory in project jackrabbit by apache.

the class LocalCache method store.

/**
     * Store an item in the cache and return the input stream. If cache is in
     * purgeMode or file doesn't exists, inputstream from a
     * {@link TransientFileFactory#createTransientFile(String, String, File)} is
     * returned. Otherwise inputStream from cached file is returned. This method
     * doesn't close the incoming inputstream.
     * 
     * @param fileName the key of cache.
     * @param in {@link InputStream}
     * @return the (new) input stream.
     */
public InputStream store(String fileName, final InputStream in) throws IOException {
    fileName = fileName.replace("\\", "/");
    File f = getFile(fileName);
    long length = 0;
    if (!f.exists() || isInPurgeMode()) {
        OutputStream out = null;
        File transFile = null;
        try {
            TransientFileFactory tff = TransientFileFactory.getInstance();
            transFile = tff.createTransientFile("s3-", "tmp", tmp);
            out = new BufferedOutputStream(new FileOutputStream(transFile));
            length = IOUtils.copyLarge(in, out);
        } finally {
            IOUtils.closeQuietly(out);
        }
        // rename the file to local fs cache
        if (canAdmitFile(length) && (f.getParentFile().exists() || f.getParentFile().mkdirs()) && transFile.renameTo(f) && f.exists()) {
            if (transFile.exists() && transFile.delete()) {
                LOG.info("tmp file [{}] not deleted successfully", transFile.getAbsolutePath());
            }
            transFile = null;
            LOG.debug("file [{}] doesn't exists. adding to local cache using inputstream.", fileName);
            cache.put(fileName, f.length());
        } else {
            LOG.debug("file [{}] doesn't exists. returning transient file [{}].", fileName, transFile.getAbsolutePath());
            f = transFile;
        }
    } else {
        f.setLastModified(System.currentTimeMillis());
        LOG.debug("file [{}]  exists. adding to local cache using inputstream.", fileName);
        cache.put(fileName, f.length());
    }
    tryPurge();
    return new LazyFileInputStream(f);
}