Example usage for java.io RandomAccessFile close

List of usage examples for java.io RandomAccessFile close

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Introduction

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

Prototype

public void close() throws IOException

Source Link

Document

Closes this random access file stream and releases any system resources associated with the stream.

Usage

From source file:org.apache.hadoop.hdfs.server.namenode.TestEditLog.java

/** 
 * Test edit log failover from a corrupt edit log
 *///  w w  w.  j  ava  2s.com
@Test
public void testEditLogFailOverFromCorrupt() throws IOException {
    File f1 = new File(TEST_DIR + "/failover0");
    File f2 = new File(TEST_DIR + "/failover1");
    List<URI> editUris = ImmutableList.of(f1.toURI(), f2.toURI());

    NNStorage storage = setupEdits(editUris, 3);

    final long startErrorTxId = 1 * TXNS_PER_ROLL + 1;
    final long endErrorTxId = 2 * TXNS_PER_ROLL;

    File[] files = new File(f1, "current").listFiles(new FilenameFilter() {
        public boolean accept(File dir, String name) {
            if (name.startsWith(NNStorage.getFinalizedEditsFileName(startErrorTxId, endErrorTxId))) {
                return true;
            }
            return false;
        }
    });
    assertEquals(1, files.length);

    long fileLen = files[0].length();
    LOG.debug("Corrupting Log File: " + files[0] + " len: " + fileLen);
    RandomAccessFile rwf = new RandomAccessFile(files[0], "rw");
    rwf.seek(fileLen - 4); // seek to checksum bytes
    int b = rwf.readInt();
    rwf.seek(fileLen - 4);
    rwf.writeInt(b + 1);
    rwf.close();

    FSEditLog editlog = getFSEditLog(storage);
    editlog.initJournalsForWrite();
    long startTxId = 1;
    Collection<EditLogInputStream> streams = null;
    try {
        streams = editlog.selectInputStreams(startTxId, 4 * TXNS_PER_ROLL);
        readAllEdits(streams, startTxId);
    } catch (IOException e) {
        LOG.error("edit log failover didn't work", e);
        fail("Edit log failover didn't work");
    } finally {
        IOUtils.cleanup(null, streams.toArray(new EditLogInputStream[0]));
    }
}

From source file:com.frand.easyandroid.http.FFFileRespHandler.java

public int copy(InputStream input, RandomAccessFile out) throws IOException {
    interrupt = false;/*  w w  w . ja va  2  s . c o  m*/
    if (input == null || out == null) {
        return -1;
    }
    byte[] buffer = new byte[BUFFER_SIZE];
    BufferedInputStream in = new BufferedInputStream(input, BUFFER_SIZE);
    int count = 0, n = 0;
    long errorBlockTimePreviousTime = -1, expireTime = 0;
    try {
        out.seek(out.length());
        previousTime = System.currentTimeMillis();
        while (!interrupt) {
            n = in.read(buffer, 0, BUFFER_SIZE);
            if (n == -1) {
                break;
            }
            out.write(buffer, 0, n);
            count += n;
            if (networkSpeed == 0) {
                if (errorBlockTimePreviousTime > 0) {
                    expireTime = System.currentTimeMillis() - errorBlockTimePreviousTime;
                    if (expireTime > TIME_OUT) {
                        throw new ConnectTimeoutException("connection time out.");
                    }
                } else {
                    errorBlockTimePreviousTime = System.currentTimeMillis();
                }
            } else {
                expireTime = 0;
                errorBlockTimePreviousTime = -1;
            }
        }
    } finally {
        try {
            out.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return count;
}

From source file:de.blinkt.openvpn.ActivityDashboard.java

private String loadLogFromFile() {
    String log = "";
    try {//  ww w.j  a  v  a  2  s .  c  om
        RandomAccessFile fp = new RandomAccessFile(getCacheDir() + "/vpnlog.txt", "r");
        //           RandomAccessFile fp = new RandomAccessFile(Environment.getExternalStorageDirectory().getAbsolutePath() + "/vpnlog.txt", "r");
        while (true) {
            byte[] buf = new byte[0x1000];
            int size = fp.read(buf);
            if (size <= 0)
                break;
            log += new String(buf);
        }
        fp.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return log;
}

From source file:edu.rit.flick.DefaultFlickFile.java

@Override
public File inflate(final Configuration configuration, final File fileIn, final File fileOut) {
    try {/*from   ww w  . j a va 2s .  co m*/
        if (!getDefaultDeflatedExtension().endsWith(Files.getFileExtension(fileIn.getName()))) {
            final File decompressedFile = archiveFile(fileIn, true);

            if (decompressedFile != null && configuration.getFlag(DELETE_FLAG))
                if (!FileUtils.deleteQuietly(fileIn))
                    System.err.printf(FILE_COULD_NOT_BE_DELETED_WARNING_FORMAT, fileIn.getPath());

            return decompressedFile;
        }

        final LongAdder unzippedContentsSize = new LongAdder();

        final long inputFileSize = FileUtils.sizeOf(fileIn);
        final long t0 = System.currentTimeMillis();

        flickFile.extractAll(fileOut.getPath());

        final RandomAccessFile raf = new RandomAccessFile(flickFile.getFile(), InternalZipConstants.READ_MODE);

        final HeaderReader hr = new HeaderReader(raf);
        final ZipModel zm = hr.readAllHeaders();
        final CentralDirectory centralDirectory = zm.getCentralDirectory();
        @SuppressWarnings("unchecked")
        final List<FileHeader> fhs = Collections.checkedList(centralDirectory.getFileHeaders(),
                FileHeader.class);

        final List<File> files = fhs.stream().map(fh -> {
            final File file = FileUtils.getFile(fileOut.getPath(), File.separator, fh.getFileName());
            unzippedContentsSize.add(file.length());
            return file;
        }).collect(Collectors.toList());

        if (!configuration.getFlag(KEEP_ZIPPED_FLAG))
            // Traverse directory and look for files to decompress
            for (final File file : files) {
                File decompressedFile = null;
                if (!file.isDirectory())
                    decompressedFile = archiveFile(file, false);

                if (decompressedFile != null) {
                    unzippedContentsSize.add(-FileUtils.sizeOf(file));
                    unzippedContentsSize.add(FileUtils.sizeOf(decompressedFile));
                    file.delete();
                }
            }

        raf.close();

        if (configuration.getFlag(DELETE_FLAG))
            if (!FileUtils.deleteQuietly(fileIn))
                System.err.printf(FILE_COULD_NOT_BE_DELETED_WARNING_FORMAT, fileIn.getPath());

        final double overallTime = (System.currentTimeMillis() - t0) / 1000d;

        if (configuration.getFlag(VERBOSE_FLAG)) {
            // Get the percent deflation on the compressed file
            final double percDeflated = 100 * unzippedContentsSize.doubleValue() / inputFileSize;

            System.out.printf(VERBOSE_DECOMPRESSION_INFO_FORMAT, fileIn.getName(), overallTime, percDeflated);
        }
    } catch (final Exception e) {
        e.printStackTrace();
    }

    return fileOut;
}

From source file:org.apache.hadoop.hdfs.server.namenode.TestEditLog.java

@Test
public void testEditChecksum() throws Exception {
    // start a cluster 
    Configuration conf = new HdfsConfiguration();
    MiniDFSCluster cluster = null;//from  w w w .j  a  va2 s  . c  o  m
    FileSystem fileSys = null;
    cluster = new MiniDFSCluster.Builder(conf).numDataNodes(NUM_DATA_NODES).build();
    cluster.waitActive();
    fileSys = cluster.getFileSystem();
    final FSNamesystem namesystem = cluster.getNamesystem();

    FSImage fsimage = namesystem.getFSImage();
    final FSEditLog editLog = fsimage.getEditLog();
    fileSys.mkdirs(new Path("/tmp"));

    Iterator<StorageDirectory> iter = fsimage.getStorage().dirIterator(NameNodeDirType.EDITS);
    LinkedList<StorageDirectory> sds = new LinkedList<StorageDirectory>();
    while (iter.hasNext()) {
        sds.add(iter.next());
    }
    editLog.close();
    cluster.shutdown();

    for (StorageDirectory sd : sds) {
        File editFile = NNStorage.getFinalizedEditsFile(sd, 1, 3);
        assertTrue(editFile.exists());

        long fileLen = editFile.length();
        LOG.debug("Corrupting Log File: " + editFile + " len: " + fileLen);
        RandomAccessFile rwf = new RandomAccessFile(editFile, "rw");
        rwf.seek(fileLen - 4); // seek to checksum bytes
        int b = rwf.readInt();
        rwf.seek(fileLen - 4);
        rwf.writeInt(b + 1);
        rwf.close();
    }

    try {
        cluster = new MiniDFSCluster.Builder(conf).numDataNodes(NUM_DATA_NODES).format(false).build();
        fail("should not be able to start");
    } catch (IOException e) {
        // expected
        assertNotNull("Cause of exception should be ChecksumException", e.getCause());
        assertEquals("Cause of exception should be ChecksumException", ChecksumException.class,
                e.getCause().getClass());
    }
}

From source file:org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.java

static private void truncateBlock(File blockFile, File metaFile, long oldlen, long newlen) throws IOException {
    LOG.info("truncateBlock: blockFile=" + blockFile + ", metaFile=" + metaFile + ", oldlen=" + oldlen
            + ", newlen=" + newlen);

    if (newlen == oldlen) {
        return;/*  w w w.  j a v a2  s.  co m*/
    }
    if (newlen > oldlen) {
        throw new IOException(
                "Cannot truncate block to from oldlen (=" + oldlen + ") to newlen (=" + newlen + ")");
    }

    DataChecksum dcs = BlockMetadataHeader.readHeader(metaFile).getChecksum();
    int checksumsize = dcs.getChecksumSize();
    int bpc = dcs.getBytesPerChecksum();
    long n = (newlen - 1) / bpc + 1;
    long newmetalen = BlockMetadataHeader.getHeaderSize() + n * checksumsize;
    long lastchunkoffset = (n - 1) * bpc;
    int lastchunksize = (int) (newlen - lastchunkoffset);
    byte[] b = new byte[Math.max(lastchunksize, checksumsize)];

    RandomAccessFile blockRAF = new RandomAccessFile(blockFile, "rw");
    try {
        //truncate blockFile 
        blockRAF.setLength(newlen);

        //read last chunk
        blockRAF.seek(lastchunkoffset);
        blockRAF.readFully(b, 0, lastchunksize);
    } finally {
        blockRAF.close();
    }

    //compute checksum
    dcs.update(b, 0, lastchunksize);
    dcs.writeValue(b, 0, false);

    //update metaFile 
    RandomAccessFile metaRAF = new RandomAccessFile(metaFile, "rw");
    try {
        metaRAF.setLength(newmetalen);
        metaRAF.seek(newmetalen - checksumsize);
        metaRAF.write(b, 0, checksumsize);
    } finally {
        metaRAF.close();
    }
}

From source file:captureplugin.CapturePlugin.java

/**
 * Check the programs after data update.
 *//*from   www . jav a 2  s .c om*/
public void handleTvDataUpdateFinished() {
    mNeedsUpdate = true;

    if (mAllowedToShowDialog) {
        mNeedsUpdate = false;

        DeviceIf[] devices = mConfig.getDeviceArray();

        final DefaultTableModel model = new DefaultTableModel() {
            public boolean isCellEditable(int row, int column) {
                return false;
            }
        };

        model.setColumnCount(5);
        model.setColumnIdentifiers(new String[] { mLocalizer.msg("device", "Device"),
                Localizer.getLocalization(Localizer.I18N_CHANNEL), mLocalizer.msg("date", "Date"),
                ProgramFieldType.START_TIME_TYPE.getLocalizedName(),
                ProgramFieldType.TITLE_TYPE.getLocalizedName() });

        JTable table = new JTable(model);
        table.getTableHeader().setReorderingAllowed(false);
        table.getTableHeader().setResizingAllowed(false);
        table.getColumnModel().getColumn(0).setCellRenderer(new DefaultTableCellRenderer() {
            public Component getTableCellRendererComponent(JTable renderTable, Object value, boolean isSelected,
                    boolean hasFocus, int row, int column) {
                Component c = super.getTableCellRendererComponent(renderTable, value, isSelected, hasFocus, row,
                        column);

                if (value instanceof DeviceIf) {
                    if (((DeviceIf) value).getDeleteRemovedProgramsAutomatically() && !isSelected) {
                        c.setForeground(Color.red);
                    }
                }

                return c;
            }
        });

        int[] columnWidth = new int[5];

        for (int i = 0; i < columnWidth.length; i++) {
            columnWidth[i] = UiUtilities.getStringWidth(table.getFont(), model.getColumnName(i)) + 10;
        }

        for (DeviceIf device : devices) {
            Program[] deleted = device.checkProgramsAfterDataUpdateAndGetDeleted();

            if (deleted != null && deleted.length > 0) {
                for (Program p : deleted) {
                    if (device.getDeleteRemovedProgramsAutomatically() && !p.isExpired() && !p.isOnAir()) {
                        device.remove(UiUtilities.getLastModalChildOf(getParentFrame()), p);
                    } else {
                        device.removeProgramWithoutExecution(p);
                    }

                    if (!p.isExpired()) {
                        Object[] o = new Object[] { device, p.getChannel().getName(), p.getDateString(),
                                p.getTimeString(), p.getTitle() };

                        for (int i = 0; i < columnWidth.length; i++) {
                            columnWidth[i] = Math.max(columnWidth[i],
                                    UiUtilities.getStringWidth(table.getFont(), o[i].toString()) + 10);
                        }

                        model.addRow(o);
                    }
                }
            }

            device.getProgramList();
        }

        if (model.getRowCount() > 0) {
            int sum = 0;

            for (int i = 0; i < columnWidth.length; i++) {
                table.getColumnModel().getColumn(i).setPreferredWidth(columnWidth[i]);

                if (i < columnWidth.length - 1) {
                    table.getColumnModel().getColumn(i).setMaxWidth(columnWidth[i]);
                }

                sum += columnWidth[i];
            }

            JScrollPane scrollPane = new JScrollPane(table);
            scrollPane.setPreferredSize(new Dimension(450, 250));

            if (sum > 500) {
                table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
                scrollPane.getViewport().setPreferredSize(
                        new Dimension(sum, scrollPane.getViewport().getPreferredSize().height));
            }

            JButton export = new JButton(mLocalizer.msg("exportList", "Export list"));
            export.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    JFileChooser chooser = new JFileChooser();
                    chooser.setDialogType(JFileChooser.SAVE_DIALOG);
                    chooser.setFileFilter(new FileFilter() {
                        public boolean accept(File f) {
                            return f.isDirectory() || f.toString().toLowerCase().endsWith(".txt");
                        }

                        public String getDescription() {
                            return "*.txt";
                        }
                    });

                    chooser.setSelectedFile(new File("RemovedPrograms.txt"));
                    if (chooser.showSaveDialog(
                            UiUtilities.getLastModalChildOf(getParentFrame())) == JFileChooser.APPROVE_OPTION) {
                        if (chooser.getSelectedFile() != null) {
                            String file = chooser.getSelectedFile().getAbsolutePath();

                            if (!file.toLowerCase().endsWith(".txt") && file.indexOf('.') == -1) {
                                file = file + ".txt";
                            }

                            if (file.indexOf('.') != -1) {
                                try {
                                    RandomAccessFile write = new RandomAccessFile(file, "rw");
                                    write.setLength(0);

                                    String eolStyle = File.separator.equals("/") ? "\n" : "\r\n";

                                    for (int i = 0; i < model.getRowCount(); i++) {
                                        StringBuilder line = new StringBuilder();

                                        for (int j = 0; j < model.getColumnCount(); j++) {
                                            line.append(model.getValueAt(i, j)).append(' ');
                                        }

                                        line.append(eolStyle);

                                        write.writeBytes(line.toString());
                                    }

                                    write.close();
                                } catch (Exception ee) {
                                }
                            }
                        }
                    }
                }
            });

            Object[] message = {
                    mLocalizer.msg("deletedText",
                            "The data was changed and the following programs were deleted:"),
                    scrollPane, export };

            JOptionPane pane = new JOptionPane();
            pane.setMessage(message);
            pane.setMessageType(JOptionPane.PLAIN_MESSAGE);

            final JDialog d = pane.createDialog(UiUtilities.getLastModalChildOf(getParentFrame()),
                    mLocalizer.msg("CapturePlugin", "CapturePlugin") + " - "
                            + mLocalizer.msg("deletedTitle", "Deleted programs"));
            d.setResizable(true);
            d.setModal(false);

            SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    d.setVisible(true);
                }
            });
        }
    }
}

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

/**
 * Process the message/*from w  w  w  . ja va2  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:com.limegroup.gnutella.metadata.MP3DataEditor.java

public int commitMetaData(String filename) {
    if (LOG.isDebugEnabled())
        LOG.debug("committing mp3 file");
    if (!LimeXMLUtils.isMP3File(filename))
        return LimeXMLReplyCollection.INCORRECT_FILETYPE;
    File f = null;/*from   w w  w  .java  2s  . c o m*/
    RandomAccessFile file = null;
    try {
        try {
            f = new File(filename);
            FileUtils.setWriteable(f);
            file = new RandomAccessFile(f, "rw");
        } catch (IOException e) {
            return LimeXMLReplyCollection.FILE_DEFECTIVE;
        }
        long length = 0;
        try {
            length = file.length();
            if (length < 128) //could not write - file too small
                return LimeXMLReplyCollection.FILE_DEFECTIVE;
            file.seek(length - 128);
        } catch (IOException ee) {
            return LimeXMLReplyCollection.RW_ERROR;
        }
        //1. Try to write out the ID3v2 data first
        int ret = -1;
        try {
            ret = writeID3V2DataToDisk(f);
        } catch (IOException iox) {
            return LimeXMLReplyCollection.RW_ERROR;
        } catch (ID3v2Exception e) { //catches both ID3v2 related exceptions
            ret = writeID3V1DataToDisk(file);
        }
        return ret;
    } finally {
        if (file != null) {
            try {
                file.close();
            } catch (IOException ignored) {
            }
        }
    }
}

From source file:org.apache.flume.channel.file.TestFlumeEventQueue.java

@Test(expected = BadCheckpointException.class)
public void testCorruptInflightPuts() throws Exception {
    RandomAccessFile inflight = null;
    try {//from ww w . j a v a  2 s.  c o m
        queue = new FlumeEventQueue(backingStore, backingStoreSupplier.getInflightTakes(),
                backingStoreSupplier.getInflightPuts());
        long txnID1 = new Random().nextInt(Integer.MAX_VALUE - 1);
        long txnID2 = txnID1 + 1;
        queue.addWithoutCommit(new FlumeEventPointer(1, 1), txnID1);
        queue.addWithoutCommit(new FlumeEventPointer(2, 1), txnID1);
        queue.addWithoutCommit(new FlumeEventPointer(2, 2), txnID2);
        queue.checkpoint(true);
        TimeUnit.SECONDS.sleep(3L);
        inflight = new RandomAccessFile(backingStoreSupplier.getInflightPuts(), "rw");
        inflight.seek(0);
        inflight.writeInt(new Random().nextInt());
        queue = new FlumeEventQueue(backingStore, backingStoreSupplier.getInflightTakes(),
                backingStoreSupplier.getInflightPuts());
        SetMultimap<Long, Long> deserializedMap = queue.deserializeInflightPuts();
        Assert.assertTrue(deserializedMap.get(txnID1).contains(new FlumeEventPointer(1, 1).toLong()));
        Assert.assertTrue(deserializedMap.get(txnID1).contains(new FlumeEventPointer(2, 1).toLong()));
        Assert.assertTrue(deserializedMap.get(txnID2).contains(new FlumeEventPointer(2, 2).toLong()));
    } finally {
        inflight.close();
    }
}