Example usage for java.io RandomAccessFile readFully

List of usage examples for java.io RandomAccessFile readFully

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Introduction

In this page you can find the example usage for java.io RandomAccessFile readFully.

Prototype

public final void readFully(byte b[]) throws IOException

Source Link

Document

Reads b.length bytes from this file into the byte array, starting at the current file pointer.

Usage

From source file:com.siblinks.ws.service.impl.CommentServiceImpl.java

/**
 * This method to get image from path directory Image question
 *
 * @param image//w  w  w.j av a2 s  . co  m
 *            name
 *
 */
@Override
@RequestMapping(value = "/getImageQuestion/{name}", method = RequestMethod.GET)
public ResponseEntity<byte[]> getImageQuestion(@PathVariable(value = "name") final String name) {
    RandomAccessFile t = null;
    ResponseEntity<byte[]> responseEntity = null;
    try {
        if (name != null) {
            String directory = environment.getProperty("directoryImageQuestion");

            String path = directory + "/" + name + ".png";

            t = new RandomAccessFile(path, "r");
            byte[] r = new byte[(int) t.length()];
            t.readFully(r);
            responseEntity = new ResponseEntity<byte[]>(r, new HttpHeaders(), HttpStatus.OK);
        } else {
            responseEntity = new ResponseEntity<byte[]>(HttpStatus.NO_CONTENT);
        }
    } catch (Exception e) {
        e.printStackTrace();
        logger.error(e.getMessage());
    } finally {
        try {
            if (t != null) {
                t.close();
            }
        } catch (IOException e) {
            // do nothing
        }
    }
    return responseEntity;
}

From source file:org.gcaldaemon.api.SyncEngine.java

/**
 * Synchronizes a remote Google Calendar to a local iCalendar (RFC 2445)
 * file. If the local calendar file does not exists, the SyncEngine will
 * download and save the original iCalendar file (with ToDo entries) without
 * any synchronization. Creates daily backups of all Google AND local
 * calendars into the 'backup' subdirectory (under the working directory).
 * //from  w ww .  ja  v  a 2 s  . com
 * @param localCalendar
 *            local calendar file
 * @param remoteCalendar
 *            Google Calendar's private ICAL URL
 *            ("https://www.google.com/calendar/ical/.../basic.ics"), or the
 *            RSS/ATOM feed's URL (= feed converter mode)
 * @param username
 *            full name of the user (eg. "username@gmail.com" or
 *            "username@mydomain.org"), this value is optional in feed
 *            converter mode
 * @param password
 *            Gmail password (in unencrypted, plain text format), this value
 *            is optional in feed converter mode
 * 
 * @throws Exception
 *             any exception (eg. i/o, invalid param, invalid calendar
 *             syntax, etc)
 * 
 * @see #getCacheTimeout
 * @see #setCacheTimeout
 */
public final void synchronize(File localCalendar, URL remoteCalendar, String username, String password)
        throws Exception {

    // Verify required parameters
    if (localCalendar == null) {
        throw new NullPointerException("localCalendar = null");
    }
    if (remoteCalendar == null) {
        throw new NullPointerException("remoteCalendar = null");
    }
    String path = remoteCalendar.getPath();
    if (path.endsWith(".ics")) {

        // Synchronizer mode
        if (username == null || username.length() == 0) {
            throw new NullPointerException("username = null");
        }
        if (username.indexOf('@') == -1) {
            throw new IllegalArgumentException("invalid username");
        }
        if (password == null || password.length() == 0) {
            throw new NullPointerException("password = null");
        }
    } else {

        // Feed converter mode
        checkFeedConverter();
        path = remoteCalendar.toString();
    }

    // Load local calendar file
    byte[] bytes = null;
    if (localCalendar.isFile()) {
        RandomAccessFile file = null;
        try {
            file = new RandomAccessFile(localCalendar, "r");
            bytes = new byte[(int) localCalendar.length()];
            file.readFully(bytes);
        } finally {
            if (file != null) {
                file.close();
            }
        }
    }

    // Create (or reinitialize) the cached instance
    if (configChanged) {
        configChanged = false;
        configurator = new Configurator(null, properties, false, Configurator.MODE_EMBEDDED);
    }

    // Create request container
    Request request = new Request();
    request.body = bytes;
    request.url = path;
    request.username = username;
    request.password = password;
    request.filePath = localCalendar.getAbsolutePath();

    // Do synchronization (if the 'localCalendar' is defined)
    if (bytes != null && bytes.length != 0) {
        configurator.synchronizeNow(request);
    }

    // Return the modified calendar (with ToDo entries)
    CachedCalendar calendar = configurator.getCalendar(request);
    bytes = calendar.toByteArray();

    // Save new content into the calendar file
    FileOutputStream out = null;
    try {
        out = new FileOutputStream(localCalendar);
        out.write(bytes);
        out.flush();
    } finally {
        if (out != null) {
            out.close();
        }
    }
}

From source file:com.siblinks.ws.service.impl.ArticleServiceImpl.java

/**
 * {@inheritDoc}/*from   w  w w. ja v  a 2  s .  com*/
 * 
 */
@SuppressWarnings("resource")
@Override
@RequestMapping(value = "/getImageArticle/{arId}", method = RequestMethod.GET, produces = MediaType.IMAGE_JPEG_VALUE)
public ResponseEntity<byte[]> getImageArticle(@PathVariable(value = "arId") final String arId)
        throws IOException {
    RandomAccessFile t = null;
    Object[] queryParams = { arId };
    String path = null;
    ResponseEntity<byte[]> responseEntity = null;
    try {
        List<Object> readObject = dao.readObjects(SibConstants.SqlMapper.SQL_GET_IMAGE_ARTICLE, queryParams);
        if (((Map) readObject.get(0)).get(Parameters.IMAGE) != null) {
            path = ((Map) readObject.get(0)).get(Parameters.IMAGE).toString();
            // System.out.print(Paths.get("").toAbsolutePath()+path);
            path = Paths.get("").toAbsolutePath() + path;
            byte[] r = null;
            try {
                t = new RandomAccessFile(path, "r");
                r = new byte[(int) t.length()];
                t.readFully(r);
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            }

            final HttpHeaders headers = new HttpHeaders();

            responseEntity = new ResponseEntity<byte[]>(r, headers, HttpStatus.OK);
        } else {
            responseEntity = new ResponseEntity<byte[]>(HttpStatus.NO_CONTENT);
        }
    } catch (Exception e) {
        e.printStackTrace();
        responseEntity = new ResponseEntity<byte[]>(HttpStatus.NO_CONTENT);
    } finally {
        if (t != null) {
            t.close();
        }
    }
    return responseEntity;
}

From source file:org.kuali.student.git.model.SvnRevisionMapper.java

private InputStream getInputStream(RevisionMapOffsetProvider offsetProvider, RandomAccessFile dataFile)
        throws IOException {

    RevisionMapOffset revisionOffset = offsetProvider.getRevisionMapOffset();

    if (revisionOffset == null)
        return null;

    byte[] data = new byte[(int) revisionOffset.getTotalBytes()];

    dataFile.seek(revisionOffset.getStartBtyeOffset());

    dataFile.readFully(data);

    return new BZip2CompressorInputStream(new ByteArrayInputStream(data));

}

From source file:org.gcaldaemon.core.Configurator.java

private final String loadToDoBlock(Request request) throws Exception {
    String toDoBlock = (String) toDoCache.get(request.url);
    if (toDoBlock != null) {
        return toDoBlock;
    }/*from  ww w . j av a  2 s  . co m*/
    File file = getToDoFile(request);
    if (file.exists()) {
        RandomAccessFile raf = null;
        try {
            raf = new RandomAccessFile(file, "r");
            byte[] bytes = new byte[(int) raf.length()];
            raf.readFully(bytes);
            raf.close();
            toDoBlock = StringUtils.decodeToString(bytes, StringUtils.UTF_8);
            if (toDoCache.size() > MAX_CACHE_SIZE) {
                toDoCache.clear();
            }
            toDoCache.put(request.url, toDoBlock);
            return toDoBlock;
        } catch (Exception ioError) {
            try {
                raf.close();
            } catch (Exception ignored) {
            }
            if (file != null) {
                file.delete();
            }
        }
    }
    return null;
}

From source file:com.siblinks.ws.service.impl.MentorServiceImpl.java

/**
 * {@inheritDoc}/*from www.  j  a va2 s . c  o  m*/
 */
@Override
@RequestMapping(value = "/getImageAboutMentor/{id}", method = RequestMethod.GET, produces = MediaType.IMAGE_JPEG_VALUE)
public ResponseEntity<byte[]> getImageAboutMentor(@PathVariable(value = "id") final String id) {
    ResponseEntity<byte[]> responseEntity = null;
    try {
        Map<String, String> queryParams = new HashMap<String, String>();
        List<Object> readObject = null;

        queryParams.put("id", id);
        String entityName = SibConstants.SqlMapper.SQL_GET_IMAGE_ABOUT_MENTOR;
        String path = null;

        readObject = dao.readObjects(entityName, queryParams);
        if (((Map) readObject.get(0)).get(Parameters.IMAGE) != null) {
            path = ((Map) readObject.get(0)).get(Parameters.IMAGE).toString();

            RandomAccessFile t = null;
            byte[] r = null;
            try {
                t = new RandomAccessFile(path, "r");
                r = new byte[(int) t.length()];
                t.readFully(r);
                responseEntity = new ResponseEntity<byte[]>(r, new HttpHeaders(), HttpStatus.OK);
            } catch (IOException e) {
                logger.debug("Some thing wrong", e);
                responseEntity = new ResponseEntity<byte[]>(HttpStatus.NOT_FOUND);
            } finally {
                // Close file
                if (t != null) {
                    try {
                        t.close();
                    } catch (IOException e) {
                        // Do nothing
                    }
                }
            }
        } else {
            responseEntity = new ResponseEntity<byte[]>(HttpStatus.NO_CONTENT);
        }
    } catch (DAOException e) {
        e.printStackTrace();
        new SimpleResponse(SibConstants.FAILURE, "Mentor", "getImageAboutMentor", e.getMessage());
    }
    return responseEntity;
}

From source file:org.gcaldaemon.core.Configurator.java

private final void manageBackups(CachedCalendar calendar, long now) throws Exception {

    // Get backup dir
    File backupDirectory = new File(workDirectory, "backup");
    if (!backupDirectory.isDirectory()) {
        backupDirectory.mkdirs();//from   ww w .  ja va2 s  .c  o  m
    }

    // Cleanup backup directory
    if (backupFiles.size() == 1) {
        String[] files = backupDirectory.list();
        File backup;
        for (int i = 0; i < files.length; i++) {
            backup = new File(backupDirectory, files[i]);
            if (now - backup.lastModified() > backupTimeout) {
                backup.delete();
            }
        }
    }

    // Generate backup file names (2007-05-12-ical-3947856328.bak)
    String hashCode = Long.toString(Math.abs(calendar.url.hashCode()));
    String date = BACKUP_FORMAT.format(new Date(now));
    String icalFileName = date + "-ical-" + hashCode + ".ics";
    String gcalFileName = date + "-gcal-" + hashCode + ".ics";
    File icalBackupFile = new File(backupDirectory, icalFileName);
    File gcalBackupFile = new File(backupDirectory, gcalFileName);

    // Save Google backup
    byte[] bytes = calendar.toByteArray();
    saveBackup(gcalBackupFile, bytes);

    // Save local backup
    if (calendar.filePath == null) {
        return;
    }
    File localFile = new File(calendar.filePath);
    if (!localFile.isFile()) {
        return;
    }
    if (icalBackupFile.exists()) {
        return;
    }
    RandomAccessFile in = null;
    try {
        in = new RandomAccessFile(localFile, "r");
        bytes = new byte[(int) localFile.length()];
        in.readFully(bytes);
        in.close();
        saveBackup(icalBackupFile, bytes);
    } catch (Exception ioException) {
        if (in != null) {
            in.close();
        }
    }
}

From source file:gate.util.reporting.PRTimeReporter.java

/**
 * Reads the given file upside down.//w w w  .  ja  va2  s .c  om
 *
 * @param fileToBeRead
 *          An object of type File representing the file to be read.
 * @param chunkSize
 *          An integer specifying the size of the chunks in which file will be
 *          read.
 * @return A long value pointing to the start position of the given file
 *         chunk.
 * @throws BenchmarkReportInputFileFormatException
 */
private long tail(File fileToBeRead, int chunkSize) throws BenchmarkReportInputFileFormatException {
    RandomAccessFile raf = null;
    try {
        raf = new RandomAccessFile(fileToBeRead, "r");
        Vector<String> lastNlines = new Vector<String>();
        int delta = 0;
        long curPos = raf.length() - 1;
        long fromPos;
        byte[] bytearray;
        while (true) {
            fromPos = curPos - chunkSize;
            if (fromPos <= 0) {
                raf.seek(0);
                bytearray = new byte[(int) curPos];
                raf.readFully(bytearray);
                if (parseLinesFromLast(bytearray, lastNlines)) {
                    if (fromPos < 0)
                        fromPos = 0;
                }
                break;
            } else {
                raf.seek(fromPos);
                bytearray = new byte[chunkSize];
                raf.readFully(bytearray);
                if (parseLinesFromLast(bytearray, lastNlines)) {
                    break;
                }
                delta = (lastNlines.get(lastNlines.size() - 1)).length();
                lastNlines.remove(lastNlines.size() - 1);
                curPos = fromPos + delta;
            }
        }
        if (fromPos < 0)
            throw new BenchmarkReportInputFileFormatException(
                    getBenchmarkFile().getAbsolutePath() + " does not contain a marker named "
                            + getLogicalStart() + " indicating logical start of a run.");
        return fromPos;

    } catch (IOException e) {
        e.printStackTrace();
        return -1;
    } finally {
        IOUtils.closeQuietly(raf);
    }
}

From source file:org.chililog.server.workbench.StaticFileRequestHandler.java

/**
 * Process the message//www . jav a 2 s .  c o  m
 */
@Override
public void processMessage(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
    HttpRequest request = (HttpRequest) e.getMessage();

    // We don't handle 100 Continue because we only allow GET method.
    if (request.getMethod() != HttpMethod.GET) {
        sendError(ctx, e, METHOD_NOT_ALLOWED, null);
        return;
    }

    // Check
    final String filePath = convertUriToPhysicalFilePath(request.getUri());
    if (filePath == null) {
        sendError(ctx, e, FORBIDDEN, null);
        return;
    }
    File file = new File(filePath);
    if (file.isHidden() || !file.exists()) {
        sendError(ctx, e, NOT_FOUND, String.format("%s not exist", file.getCanonicalPath()));
        return;
    }
    if (!file.isFile()) {
        sendError(ctx, e, FORBIDDEN, String.format("%s not a file", file.getCanonicalPath()));
        return;
    }

    // Cache Validation
    String ifModifiedSince = request.getHeader(HttpHeaders.Names.IF_MODIFIED_SINCE);
    if (!StringUtils.isBlank(ifModifiedSince)) {
        SimpleDateFormat dateFormatter = new SimpleDateFormat(HTTP_DATE_FORMAT, Locale.US);
        Date ifModifiedSinceDate = dateFormatter.parse(ifModifiedSince);

        // Only compare up to the second because the datetime format we send to the client does not have milliseconds 
        long ifModifiedSinceDateSeconds = ifModifiedSinceDate.getTime() / 1000;
        long fileLastModifiedSeconds = file.lastModified() / 1000;
        if (ifModifiedSinceDateSeconds == fileLastModifiedSeconds) {
            sendNotModified(ctx, e);
            return;
        }
    }

    // Open file for sending back
    RandomAccessFile raf;
    try {
        raf = new RandomAccessFile(file, "r");
    } catch (FileNotFoundException fnfe) {
        sendError(ctx, e, NOT_FOUND, null);
        return;
    }
    long fileLength = raf.length();

    // Log
    writeLogEntry(e, OK, null);

    // Create the response
    HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
    setContentLength(response, fileLength);
    setContentTypeHeader(response, file);
    setDateAndCacheHeaders(response, file);

    // Write the content.
    Channel ch = e.getChannel();
    ChannelFuture writeFuture;
    if (AppProperties.getInstance().getWorkbenchSslEnabled()) {
        // Cannot use zero-copy with HTTPS

        // Write the initial line and the header.
        ch.write(response);

        // Write chunks
        writeFuture = ch.write(new ChunkedFile(raf, 0, fileLength, 8192));
    } else {
        // Now that we are using Execution Handlers, we cannot do zero-copy.
        // Do as per with compression (which is what most browser will ask for)
        byte[] buffer = new byte[(int) fileLength];
        raf.readFully(buffer);
        raf.close();

        response.setContent(ChannelBuffers.copiedBuffer(buffer));
        writeFuture = ch.write(response);

        /*
         * // No encryption - use zero-copy. // However zero-copy does not seem to work with compression // Only use
         * zero-copy for large files like movies and music // Write the initial line and the header.
         * ch.write(response); // Zero-copy final FileRegion region = new DefaultFileRegion(raf.getChannel(), 0,
         * fileLength); writeFuture = ch.write(region); writeFuture.addListener(new ChannelFutureProgressListener()
         * { public void operationComplete(ChannelFuture future) { region.releaseExternalResources(); } public void
         * operationProgressed(ChannelFuture future, long amount, long current, long total) {
         * _logger.debug("Zero-Coping file %s: %d / %d (+%d) bytes", filePath, current, total, amount); } });
         */
    }

    // Decide whether to close the connection or not.
    if (!isKeepAlive(request)) {
        // Close the connection when the whole content is written out.
        writeFuture.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:gate.util.reporting.DocTimeReporter.java

/**
 * A method for reading the file upside down.
 *
 * @param fileToBeRead// w  ww .  ja v  a2  s . com
 *          An object of the file to be read.
 * @param chunkSize
 *          An integer specifying the size of the chunks in which file will be
 *          read.
 * @return A long value pointing to the start position of the given file
 *         chunk.
 */
private long tail(File fileToBeRead, int chunkSize) throws BenchmarkReportInputFileFormatException {
    RandomAccessFile raf = null;
    try {
        raf = new RandomAccessFile(fileToBeRead, "r");
        Vector<String> lastNlines = new Vector<String>();
        int delta = 0;
        long curPos = 0;
        curPos = raf.length() - 1;
        long fromPos;
        byte[] bytearray;
        while (true) {
            fromPos = curPos - chunkSize;
            if (fromPos <= 0) {
                raf.seek(0);
                bytearray = new byte[(int) curPos];
                raf.readFully(bytearray);
                if (parseLinesFromLast(bytearray, lastNlines, fromPos)) {
                    if (fromPos < 0)
                        fromPos = 0;
                }
                break;
            } else {
                raf.seek(fromPos);
                bytearray = new byte[chunkSize];
                raf.readFully(bytearray);
                if (parseLinesFromLast(bytearray, lastNlines, fromPos)) {
                    break;
                }
                delta = lastNlines.get(lastNlines.size() - 1).length();
                lastNlines.remove(lastNlines.size() - 1);
                curPos = fromPos + delta;
            }
        }
        if (fromPos < 0)
            throw new BenchmarkReportInputFileFormatException(
                    getBenchmarkFile() + " does not contain a marker named " + getLogicalStart()
                            + " indicating logical start of a run.");
        return fromPos;

    } catch (IOException e) {
        e.printStackTrace();
        return -1;
    } finally {
        IOUtils.closeQuietly(raf);
    }
}