java.io.RandomAccessFile Java Examples

The following examples show how to use java.io.RandomAccessFile. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source Project: openjdk-8-source   Author: keerath   File: JdpDoSomething.java    License: GNU General Public License v2.0 7 votes vote down vote up
public static void printJdpPacket(JdpJmxPacket p) {
    if (getVerbose()) {
        try {
            RandomAccessFile f = new RandomAccessFile("out.dmp", "rw");
            f.write(p.getPacketData());
            f.close();
        } catch (IOException e) {
            System.out.println("Can't write a dump file: " + e);
        }

        System.out.println("Id: " + p.getId());
        System.out.println("Jmx: " + p.getJmxServiceUrl());
        System.out.println("Main: " + p.getMainClass());
        System.out.println("InstanceName: " + p.getInstanceName());
        System.out.println("ProccessId: " + p.getProcessId());
        System.out.println("BroadcastInterval: " + p.getBroadcastInterval());
        System.out.println("Rmi Hostname: " + p.getRmiHostname());

        System.out.flush();
    }
}
 
Example #2
Source Project: minperf   Author: thomasmueller   File: WikipediaTest.java    License: Apache License 2.0 7 votes vote down vote up
private static void largeFile(String fileName) throws IOException {
    if (!new File(fileName).exists()) {
        System.out.println("not found: " + fileName);
        return;
    }
    RandomAccessFile f = new RandomAccessFile(fileName, "r");
    byte[] data = new byte[(int) f.length()];
    f.readFully(data);
    HashSet<Text> set = new HashSet<Text>(40 * 1024 * 1024);
    int end = Text.indexOf(data, 0, '\n');
    Text t = new Text(data, 0, end);
    long time = System.currentTimeMillis();
    while (true) {
        set.add(t);
        if (end >= data.length - 1) {
            break;
        }
        int start = end + 1;
        end = Text.indexOf(data, start, '\n');
        t = new Text(data, start, end - start);
        long now = System.currentTimeMillis();
        if (now - time > 2000) {
            System.out.println("size: " + set.size());
            time = now;
        }
    }
    System.out.println("file: " + fileName);
    System.out.println("size: " + set.size());

    test(set, 8, 14);
    test(set, 8, 10);
    test(set, 8, 16);
    test(set, 8, 12);
}
 
Example #3
Source Project: Jupiter   Author: JupiterDevelopmentTeam   File: BaseRegionLoader.java    License: GNU General Public License v3.0 6 votes vote down vote up
public BaseRegionLoader(LevelProvider level, int regionX, int regionZ, String ext) {
    try {
        this.x = regionX;
        this.z = regionZ;
        this.levelProvider = level;
        this.filePath = this.levelProvider.getPath() + "region/r." + regionX + "." + regionZ + "." + ext;
        this.file = new File(this.filePath);
        boolean exists = this.file.exists();
        if (!exists) {
            file.createNewFile();
        }
        this.randomAccessFile = new RandomAccessFile(this.filePath, "rw");
        if (!exists) {
            this.createBlank();
        } else {
            this.loadLocationTable();
        }

        this.lastUsed = System.currentTimeMillis();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }

}
 
Example #4
Source Project: Green-Creator   Author: hluwa   File: FileChange.java    License: GNU General Public License v2.0 6 votes vote down vote up
public FileChange(File file) throws IOException {
	if(!file.exists()) 
	{
		System.out.println("File not found");
		throw new IOException();
	}
	this.file = file;
	RandomAccessFile rsf = new RandomAccessFile(this.file, "rw");
	this.data = new byte[(int) rsf.length()];
	rsf.read(data);
	int pos = 0;
	while (pos < data.length) {
		instBuf.add(data[pos++]);
	}
	rsf.close();
	getLength();
}
 
Example #5
Source Project: biojava   Author: biojava   File: TwoBitParser.java    License: GNU Lesser General Public License v2.1 6 votes vote down vote up
public TwoBitParser(File f) throws Exception {
	this.f = f;
	raf = new RandomAccessFile(f,"r");
	long sign = readFourBytes();
	if(sign==0x1A412743) {
		logger.debug("2bit: Normal number architecture");
	}
	else if(sign==0x4327411A) {
		reverse = true;
		logger.debug("2bit: Reverse number architecture");
	}
	else throw new Exception("Wrong start signature in 2BIT format");
	readFourBytes();
	int seq_qnt = (int)readFourBytes();
	readFourBytes();
	seq_names = new String[seq_qnt];
	for(int i=0;i<seq_qnt;i++) {
		int name_len = raf.read();
		char[] chars = new char[name_len];
		for(int j=0;j<name_len;j++) chars[j] = (char)raf.read();
		seq_names[i] = new String(chars);
		long pos = readFourBytes();
		seq2pos.put(seq_names[i],pos);
		logger.debug("2bit: Sequence name=[{}], pos={}", seq_names[i], pos);
	}
}
 
Example #6
Source Project: code   Author: lastwhispers   File: RandomAccessFileDemo.java    License: Apache License 2.0 6 votes vote down vote up
@Test
public void testRead() throws IOException {
    // 1、创建随机访问流对象
    RandomAccessFile raf = new RandomAccessFile("raf.txt", "rw");
    int i = raf.readInt();
    System.out.println(i);
    // 该文件指针可以通过 getFilePointer方法读取,并通过 seek 方法设置。
    System.out.println("当前文件的指针位置是:" + raf.getFilePointer());

    char ch = raf.readChar();
    System.out.println(ch);
    System.out.println("当前文件的指针位置是:" + raf.getFilePointer());

    String s = raf.readUTF();
    System.out.println(s);
    System.out.println("当前文件的指针位置是:" + raf.getFilePointer());

    // 我不想重头开始了,我就要读取a,怎么办呢?
    raf.seek(4);
    ch = raf.readChar();
    System.out.println(ch);
}
 
Example #7
Source Project: J2ME-Loader   Author: nikita36078   File: FileSystemFileConnection.java    License: Apache License 2.0 6 votes vote down vote up
private OutputStream openOutputStream(boolean appendToFile, final long byteOffset) throws IOException {
	throwClosed();
	throwOpenDirectory();

	if (this.opendOutputStream != null) {
		throw new IOException("OutputStream already opened");
	}
	/**
	 * Trying to open more than one InputStream or more than one
	 * OutputStream from a StreamConnection causes an IOException.
	 */
	RandomAccessFile raf = new RandomAccessFile(file, "rw");
	raf.seek(byteOffset);
	return new FileOutputStream(raf.getFD()) {
		@Override
		public void close() throws IOException {
			FileSystemFileConnection.this.opendOutputStream = null;
			super.close();
		}
	};
}
 
Example #8
Source Project: tracecompass   Author: tracecompass   File: AbstractFileCheckpointCollection.java    License: Eclipse Public License 2.0 6 votes vote down vote up
/**
 * Marks the index as dirty. Writes an invalid file header, and sets the dirty
 * flag which will cause the new file header to be serialized when the index is
 * disposed.
 */
protected void markDirty() {
    RandomAccessFile randomAccessFile = fRandomAccessFile;
    if (fIsDirty || randomAccessFile == null) {
        return;
    }
    try {
        // Write an invalid version until the very last moment when dispose
        // the index. This is how we know if it's corrupted or not.
        randomAccessFile.seek(0);
        randomAccessFile.writeInt(INVALID_VERSION);
    } catch (IOException e) {
        Activator.logError(MessageFormat.format(Messages.IOErrorWritingHeader, fFile), e);
    }
    fIsDirty = true;
}
 
Example #9
Source Project: quickmark   Author: linmp4   File: LockPatternUtils.java    License: MIT License 6 votes vote down vote up
/**
 * Check to see if a pattern matches the saved pattern. If no pattern
 * exists, always returns true.
 * 
 * @param pattern
 *            The pattern to check.
 * @return Whether the pattern matches the stored one.
 */
public boolean checkPattern(List<LockPatternView.Cell> pattern) {
	try {
		// Read all the bytes from the file
		RandomAccessFile raf = new RandomAccessFile(sLockPatternFilename,
				"r");
		final byte[] stored = new byte[(int) raf.length()];
		int got = raf.read(stored, 0, stored.length);
		raf.close();
		if (got <= 0) {
			return true;
		}
		// Compare the hash from the file with the entered pattern's hash
		return Arrays.equals(stored,
				LockPatternUtils.patternToHash(pattern));
	} catch (FileNotFoundException fnfe) {
		return true;
	} catch (IOException ioe) {
		return true;
	}
}
 
Example #10
Source Project: vlc-example-streamplayer   Author: pedroSG94   File: VLCUtil.java    License: GNU General Public License v3.0 6 votes vote down vote up
private static boolean readSection(RandomAccessFile in, ElfData elf) throws IOException {
    byte[] bytes = new byte[SECTION_HEADER_SIZE];
    in.seek(elf.e_shoff);

    for (int i = 0; i < elf.e_shnum; ++i) {
        in.readFully(bytes);

        // wrap bytes in a ByteBuffer to force endianess
        ByteBuffer buffer = ByteBuffer.wrap(bytes);
        buffer.order(elf.order);

        int sh_type = buffer.getInt(4); /* Section type */
        if (sh_type != SHT_ARM_ATTRIBUTES)
            continue;

        elf.sh_offset = buffer.getInt(16);  /* Section file offset */
        elf.sh_size = buffer.getInt(20);    /* Section size in bytes */
        return true;
    }

    return false;
}
 
Example #11
Source Project: sgdtk   Author: dpressel   File: OverlappedTrainingRunner.java    License: Apache License 2.0 6 votes vote down vote up
private void passN() throws IOException
{

    // Get FV from file
    randomAccessFile = new RandomAccessFile(getCacheFile(), "r");

    while (randomAccessFile.getFilePointer() < randomAccessFile.length())
    {
        int recordLength = (int) randomAccessFile.readLong();
        packBuffer = growIfNeeded(packBuffer, recordLength);
        randomAccessFile.read(packBuffer, 0, recordLength);
        FeatureVector fv = toFeatureVector();
        // add to ring buffer
        addWithProb(fv);

    }

    randomAccessFile.close();

    signalEndEpoch();

}
 
Example #12
Source Project: netbeans   Author: apache   File: StreamUtils.java    License: Apache License 2.0 6 votes vote down vote up
public static void transferFile(
        final File file, 
        final OutputStream out,
        final Progress progress) throws IOException {
    RandomAccessFile in = null;
    
    try {
        transferData(in = new RandomAccessFile(file, "r"), out, progress);
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (IOException e) {
                ErrorManager.notifyDebug("Cannot close raf", e);
            }
        }
    }
}
 
Example #13
Source Project: hbase   Author: apache   File: FileIOEngine.java    License: Apache License 2.0 6 votes vote down vote up
@VisibleForTesting
void refreshFileConnection(int accessFileNum, IOException ioe) throws IOException {
  ReentrantLock channelLock = channelLocks[accessFileNum];
  channelLock.lock();
  try {
    FileChannel fileChannel = fileChannels[accessFileNum];
    if (fileChannel != null) {
      // Don't re-open a channel if we were waiting on another
      // thread to re-open the channel and it is now open.
      if (fileChannel.isOpen()) {
        return;
      }
      fileChannel.close();
    }
    LOG.warn("Caught ClosedChannelException accessing BucketCache, reopening file: "
        + filePaths[accessFileNum], ioe);
    rafs[accessFileNum] = new RandomAccessFile(filePaths[accessFileNum], "rw");
    fileChannels[accessFileNum] = rafs[accessFileNum].getChannel();
  } finally{
    channelLock.unlock();
  }
}
 
Example #14
Source Project: j2objc   Author: google   File: OldRandomAccessFileTest.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * java.io.RandomAccessFile#readLine()
 */
public void test_readLine() throws IOException {
    // Test for method java.lang.String java.io.RandomAccessFile.readLine()
    RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
    String s = "Goodbye\nCruel\nWorld\n";
    raf.write(s.getBytes(), 0, s.length());
    raf.seek(0);

    assertEquals("Test 1: Incorrect line read;", "Goodbye", raf.readLine());
    assertEquals("Test 2: Incorrect line read;", "Cruel", raf.readLine());
    assertEquals("Test 3: Incorrect line read;", "World", raf.readLine());
    assertNull("Test 4: Incorrect line read; null expected.", raf.readLine());

    raf.close();
    try {
        raf.readLine();
        fail("Test 5: IOException expected.");
    } catch (IOException e) {
        // Expected.
    }

}
 
Example #15
Source Project: big-c   Author: yncxcw   File: NNStorage.java    License: Apache License 2.0 6 votes vote down vote up
@Override // Storage
public boolean isPreUpgradableLayout(StorageDirectory sd) throws IOException {
  if (disablePreUpgradableLayoutCheck) {
    return false;
  }

  File oldImageDir = new File(sd.getRoot(), "image");
  if (!oldImageDir.exists()) {
    return false;
  }
  // check the layout version inside the image file
  File oldF = new File(oldImageDir, "fsimage");
  RandomAccessFile oldFile = new RandomAccessFile(oldF, "rws");
  try {
    oldFile.seek(0);
    int oldVersion = oldFile.readInt();
    oldFile.close();
    oldFile = null;
    if (oldVersion < LAST_PRE_UPGRADE_LAYOUT_VERSION)
      return false;
  } finally {
    IOUtils.cleanup(LOG, oldFile);
  }
  return true;
}
 
Example #16
Source Project: xdm   Author: subhra74   File: SegmentImpl.java    License: GNU General Public License v2.0 6 votes vote down vote up
public SegmentImpl(String folder, String id, long off, long len, long dwn) throws IOException {
	this.id = id;
	this.id = id;
	this.startOffset = off;
	this.folder = folder;
	this.length = len;
	this.downloaded = dwn;
	this.time1 = System.currentTimeMillis();
	this.time2 = time1;
	this.bytesRead1 = dwn;
	this.bytesRead2 = dwn;
	try {
		outStream = new RandomAccessFile(new File(folder, id), "rw");
		outStream.seek(dwn);
		Logger.log("File opened " + id);
	} catch (IOException e) {
		Logger.log(e);
		if (outStream != null) {
			outStream.close();
		}
		throw new IOException(e);
	}
	this.config = Config.getInstance();
}
 
Example #17
Source Project: mt-flume   Author: javachen   File: TestEventQueueBackingStoreFactory.java    License: Apache License 2.0 6 votes vote down vote up
@Test (expected = InvalidProtocolBufferException.class)
public void testCorruptMeta() throws Throwable {
  EventQueueBackingStore backingStore = EventQueueBackingStoreFactory.
          get(checkpoint, 10, "test");
  backingStore.close();
  Assert.assertTrue(checkpoint.exists());
  File metaFile = Serialization.getMetaDataFile(checkpoint);
  Assert.assertTrue(metaFile.length() != 0);
  RandomAccessFile writer = new RandomAccessFile(metaFile, "rw");
  writer.seek(10);
  writer.writeLong(new Random().nextLong());
  writer.getFD().sync();
  writer.close();
  try {
    backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
  } catch (BadCheckpointException ex) {
    throw ex.getCause();
  }
}
 
Example #18
Source Project: openjdk-jdk8u   Author: AdoptOpenJDK   File: JdpDoSomething.java    License: GNU General Public License v2.0 6 votes vote down vote up
public static void printJdpPacket(JdpJmxPacket p) {
    if (getVerbose()) {
        try {
            RandomAccessFile f = new RandomAccessFile("out.dmp", "rw");
            f.write(p.getPacketData());
            f.close();
        } catch (IOException e) {
            System.out.println("Can't write a dump file: " + e);
        }

        System.out.println("Id: " + p.getId());
        System.out.println("Jmx: " + p.getJmxServiceUrl());
        System.out.println("Main: " + p.getMainClass());
        System.out.println("InstanceName: " + p.getInstanceName());
        System.out.println("ProccessId: " + p.getProcessId());
        System.out.println("BroadcastInterval: " + p.getBroadcastInterval());
        System.out.println("Rmi Hostname: " + p.getRmiHostname());

        System.out.flush();
    }
}
 
Example #19
Source Project: trekarta   Author: andreynovikov   File: TrackManager.java    License: GNU General Public License v3.0 6 votes vote down vote up
/**
 * Saves track properties by modifying only file tail.
 */
public void saveProperties(FileDataSource source) throws Exception {
    Track track = source.tracks.get(0);
    // Prepare new properties tail
    ByteBuffer buffer = ByteBuffer.allocate(getSerializedPropertiesSize(track));
    CodedOutputStream output = CodedOutputStream.newInstance(buffer);
    output.writeBytes(FIELD_NAME, ByteString.copyFromUtf8(track.name));
    output.writeUInt32(FIELD_COLOR, track.style.color);
    output.writeFloat(FIELD_WIDTH, track.style.width);
    output.flush();
    // Modify tail of file
    File file = new File(source.path);
    long createTime = file.lastModified();
    RandomAccessFile access = new RandomAccessFile(file, "rw");
    access.setLength(source.propertiesOffset + 1);
    access.seek(source.propertiesOffset);
    access.write(buffer.array());
    access.close();
    //noinspection ResultOfMethodCallIgnored
    file.setLastModified(createTime);
}
 
Example #20
Source Project: graphicsfuzz   Author: google   File: PersistentFile.java    License: Apache License 2.0 6 votes vote down vote up
@Override
public byte[] load(String key) {
  String filename = makeFilename(key);

  File file = new File(filename);
  if (!file.exists()) {
    return null;
  }

  byte[] data = null;

  try {
    RandomAccessFile f = new RandomAccessFile(file, "r");
    data = new byte[(int) file.length()];
    f.readFully(data);
    f.close();
  } catch (Exception e) {
    e.printStackTrace();
  }

  return data;
}
 
Example #21
Source Project: MikuMikuStudio   Author: chototsu   File: BufferUtil.java    License: BSD 2-Clause "Simplified" License 6 votes vote down vote up
private static ByteBuffer createByteBufferFile(int size) {
    try {
        if (tmpDir != null && logger.isLoggable(Level.INFO)) {
            logger.log(Level.INFO, "tmpDir = {0}", tmpDir.getAbsoluteFile());
        }
        File tmpFile = File.createTempFile("pmd","tmp", tmpDir);
        if (logger.isLoggable(Level.INFO)) {
            logger.log(Level.INFO, "tmpFile = {0}", tmpFile.getAbsoluteFile());
        }
        RandomAccessFile os = new RandomAccessFile(tmpFile, "rw");
        os.seek(size);
        os.write(0);
        FileChannel ch = os.getChannel();
        MappedByteBuffer  bb = ch.map(MapMode.READ_WRITE, 0, size);
        os.close();
        ch.close();
        tmpFile.delete();
        bb.order(ByteOrder.nativeOrder());
        return bb;
    } catch(IOException ex) {
        throw new RuntimeException(ex);
    }
}
 
Example #22
Source Project: gemfirexd-oss   Author: gemxd   File: DiskInitFile.java    License: Apache License 2.0 6 votes vote down vote up
private void openRAF() {
  if (DiskStoreImpl.PREALLOCATE_IF) {
    openRAF2();
    return;
  }
  try {
    this.ifRAF = new RandomAccessFile(this.ifFile, getFileMode());
    long len = this.ifRAF.length();
    if (len != 0) {
      this.ifRAF.seek(len);
    }
  } catch (IOException ex) {
    throw new DiskAccessException(
        LocalizedStrings.DiskRegion_COULD_NOT_OPEN_0.toLocalizedString(this.ifFile
            .getPath()), ex, this.parent);
  }
}
 
Example #23
Source Project: j2objc   Author: google   File: OldRandomAccessFileTest.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * java.io.RandomAccessFile#writeChars(java.lang.String)
 */
public void test_writeCharsLjava_lang_String() throws IOException {
    RandomAccessFile raf = new java.io.RandomAccessFile(fileName, "rw");
    raf.writeChars(unihw);
    char[] hchars = new char[unihw.length()];
    unihw.getChars(0, unihw.length(), hchars, 0);
    raf.seek(0);
    for (int i = 0; i < hchars.length; i++)
        assertEquals("Test 1: Incorrect character written or read at index " + i + ";",
                hchars[i], raf.readChar());
    raf.close();
    try {
        raf.writeChars("Already closed.");
        fail("Test 2: IOException expected.");
    } catch (IOException e) {
        // Expected.
    }
}
 
Example #24
Source Project: Audinaut   Author: nvllsvm   File: ID3v2File.java    License: GNU General Public License v3.0 5 votes vote down vote up
private HashMap parse_v3_frames(RandomAccessFile s, long payload_len) throws IOException {
    HashMap tags = new HashMap();
    byte[] frame = new byte[10]; // a frame header is always 10 bytes
    long bread = 0;            // total amount of read bytes

    while (bread < payload_len) {
        bread += s.read(frame);
        String framename = new String(frame, 0, 4);
        int slen = b2be32(frame, 4);

        /* Abort on silly sizes */
        if (slen < 1 || slen > 524288)
            break;

        byte[] xpl = new byte[slen];
        bread += s.read(xpl);

        if (framename.substring(0, 1).equals("T")) {
            String[] nmzInfo = normalizeTaginfo(framename, xpl);

            for (int i = 0; i < nmzInfo.length; i += 2) {
                String oggKey = nmzInfo[i];
                String decPld = nmzInfo[i + 1];

                if (oggKey.length() > 0 && !tags.containsKey(oggKey)) {
                    addTagEntry(tags, oggKey, decPld);
                }
            }
        }
    }
    return tags;
}
 
Example #25
Source Project: dex-method-counts   Author: mihaip   File: Main.java    License: Apache License 2.0 5 votes vote down vote up
RandomAccessFile openDexFile(ZipFile zipFile, ZipEntry entry) throws IOException  {
    // We know it's a zip; see if there's anything useful inside.  A
    // failure here results in some type of IOException (of which
    // ZipException is a subclass).
    InputStream zis = zipFile.getInputStream(entry);

    // Create a temp file to hold the DEX data, open it, and delete it
    // to ensure it doesn't hang around if we fail.
    File tempFile = File.createTempFile("dexdeps", ".dex");
    RandomAccessFile dexFile = new RandomAccessFile(tempFile, "rw");
    tempFile.delete();

    // Copy all data from input stream to output file.
    byte copyBuf[] = new byte[32768];
    int actual;

    while (true) {
        actual = zis.read(copyBuf);
        if (actual == -1)
            break;

        dexFile.write(copyBuf, 0, actual);
    }

    dexFile.seek(0);

    return dexFile;
}
 
Example #26
Source Project: mt-flume   Author: javachen   File: LogFile.java    License: Apache License 2.0 5 votes vote down vote up
protected static byte[] readDelimitedBuffer(RandomAccessFile fileHandle)
    throws IOException {
  int length = fileHandle.readInt();
  Preconditions.checkState(length >= 0, Integer.toHexString(length));
  byte[] buffer = new byte[length];
  fileHandle.readFully(buffer);
  return buffer;
}
 
Example #27
Source Project: logging-log4j2   Author: apache   File: MemoryMappedFileManager.java    License: Apache License 2.0 5 votes vote down vote up
protected MemoryMappedFileManager(final RandomAccessFile file, final String fileName, final OutputStream os,
        final boolean immediateFlush, final long position, final int regionLength, final String advertiseURI,
        final Layout<? extends Serializable> layout, final boolean writeHeader) throws IOException {
    super(os, fileName, layout, writeHeader, ByteBuffer.wrap(new byte[0]));
    this.immediateFlush = immediateFlush;
    this.randomAccessFile = Objects.requireNonNull(file, "RandomAccessFile");
    this.regionLength = regionLength;
    this.advertiseURI = advertiseURI;
    this.isEndOfBatch.set(Boolean.FALSE);
    this.mappedBuffer = mmap(randomAccessFile.getChannel(), getFileName(), position, regionLength);
    this.byteBuffer = mappedBuffer;
    this.mappingOffset = position;
}
 
Example #28
Source Project: SoftwarePilot   Author: boubinjg   File: MissionDriver.java    License: MIT License 5 votes vote down vote up
void writeWaypoint(byte[] b) {
   try{
File f = new File(fname);
f.delete();
MappedByteBuffer out = new RandomAccessFile(fname, "rw").getChannel().map(FileChannel.MapMode.READ_WRITE, 0, b.length);

for(int j = 0; j<b.length; j++){
	out.put(b[j]);
}
   } catch(Exception e){
e.printStackTrace();
   }
  	}
 
Example #29
Source Project: swellrt   Author: SwellRT   File: FileDeltaCollection.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Create a new file delta collection for the given wavelet.
 *
 * @param waveletName name of the wavelet
 * @param deltaFile the file of deltas
 * @param index index into deltas
 */
public FileDeltaCollection(WaveletName waveletName, RandomAccessFile deltaFile,
    DeltaIndex index) {
  this.waveletName = waveletName;
  this.file = deltaFile;
  this.index = index;
  this.isOpen = true;
  lifeCycle.start();
}
 
Example #30
Source Project: phoenix   Author: forcedotcom   File: SpillFile.java    License: BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up
private static TempFile createTempFile() throws IOException {
    File tempFile = File.createTempFile(UUID.randomUUID().toString(), null);
    if (logger.isDebugEnabled()) {
        logger.debug("Creating new SpillFile: " + tempFile.getAbsolutePath());
    }
    RandomAccessFile file = new RandomAccessFile(tempFile, "rw");
    file.setLength(SPILL_FILE_SIZE);
    
    return new TempFile(tempFile, file);
}