List of usage examples for java.io DataOutputStream writeLong
public final void writeLong(long v) throws IOException
long to the underlying output stream as eight bytes, high byte first. From source file:com.csipsimple.backup.SipProfilesHelper.java
@Override public void performBackup(ParcelFileDescriptor oldState, BackupDataOutput data, ParcelFileDescriptor newState) { boolean forceBackup = (oldState == null); long fileModified = databaseFile.lastModified(); try {/*from ww w .java2 s. co m*/ if (!forceBackup) { FileInputStream instream = new FileInputStream(oldState.getFileDescriptor()); DataInputStream in = new DataInputStream(instream); long lastModified = in.readLong(); in.close(); if (lastModified < fileModified) { forceBackup = true; } } } catch (IOException e) { Log.e(THIS_FILE, "Cannot manage previous local backup state", e); forceBackup = true; } Log.d(THIS_FILE, "Will backup profiles ? " + forceBackup); if (forceBackup) { JSONArray accountsSaved = SipProfileJson.serializeSipProfiles(mContext); try { writeData(data, accountsSaved.toString()); } catch (IOException e) { Log.e(THIS_FILE, "Cannot manage remote backup", e); } } try { FileOutputStream outstream = new FileOutputStream(newState.getFileDescriptor()); DataOutputStream out = new DataOutputStream(outstream); out.writeLong(fileModified); out.close(); } catch (IOException e) { Log.e(THIS_FILE, "Cannot manage final local backup state", e); } }
From source file:com.exzogeni.dk.http.cache.DiscCacheStore.java
private void saveMetaFile(@NonNull File metaFile, @NonNull Map<String, List<String>> metaHeaders, long maxAge) throws IOException { final AtomicFile af = new AtomicFile(metaFile); final FileOutputStream fos = af.startWrite(); try {//from w w w .j a v a2s . co m final DataOutputStream dat = new DataOutputStream(new BufferPoolOutputStream(fos)); dat.writeLong(System.currentTimeMillis() + maxAge); dat.writeInt(metaHeaders.size()); for (final Map.Entry<String, List<String>> header : metaHeaders.entrySet()) { dat.writeUTF(header.getKey()); dat.writeInt(header.getValue().size()); for (final String value : header.getValue()) { dat.writeUTF(value); } } IOUtils.closeQuietly(dat); af.finishWrite(fos); } catch (IOException e) { af.failWrite(fos); af.delete(); throw e; } }
From source file:org.alfresco.encryption.MACUtils.java
protected byte[] longToByteArray(long l) throws IOException { ByteArrayOutputStream bos = new ByteArrayOutputStream(); DataOutputStream dos = new DataOutputStream(bos); dos.writeLong(l); dos.flush();//from www .j ava 2 s . c o m return bos.toByteArray(); }
From source file:com.csipsimple.backup.SipSharedPreferencesHelper.java
@Override public void performBackup(ParcelFileDescriptor oldState, BackupDataOutput data, ParcelFileDescriptor newState) { boolean forceBackup = (oldState == null); long fileModified = 1; if (prefsFiles != null) { fileModified = prefsFiles.lastModified(); }/*ww w. ja v a 2s . co m*/ try { if (!forceBackup) { FileInputStream instream = new FileInputStream(oldState.getFileDescriptor()); DataInputStream in = new DataInputStream(instream); long lastModified = in.readLong(); in.close(); if (lastModified < fileModified) { forceBackup = true; } } } catch (IOException e) { Log.e(THIS_FILE, "Cannot manage previous local backup state", e); forceBackup = true; } Log.d(THIS_FILE, "Will backup profiles ? " + forceBackup); if (forceBackup) { JSONObject settings = SipProfileJson.serializeSipSettings(mContext); try { writeData(data, settings.toString()); } catch (IOException e) { Log.e(THIS_FILE, "Cannot manage remote backup", e); } } try { FileOutputStream outstream = new FileOutputStream(newState.getFileDescriptor()); DataOutputStream out = new DataOutputStream(outstream); out.writeLong(fileModified); out.close(); } catch (IOException e) { Log.e(THIS_FILE, "Cannot manage final local backup state", e); } }
From source file:com.codefollower.lealone.omid.tso.TimestampOracle.java
/** * Must be called holding an exclusive lock * /*from w ww . j a v a 2s . c o m*/ * return the next timestamp */ public long next(DataOutputStream toWal) throws IOException { last++; if (last == maxTimestamp) { maxTimestamp += TIMESTAMP_BATCH; toWal.writeByte(LoggerProtocol.TIMESTAMP_ORACLE); toWal.writeLong(maxTimestamp); } return last; }
From source file:be.fedict.eid.idp.protocol.openid.StatelessServerAssociationStore.java
private Association setHandle(Association association) throws AssociationException, IOException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException, InvalidAlgorithmParameterException, NoSuchProviderException { ByteArrayOutputStream encodedAssociation = new ByteArrayOutputStream(); String type = association.getType(); if (type == Association.TYPE_HMAC_SHA1) { encodedAssociation.write(1);//from w w w.ja va 2s .c o m } else if (type == Association.TYPE_HMAC_SHA256) { encodedAssociation.write(2); } else { throw new AssociationException("unknown type: " + type); } SecretKey macKey = association.getMacKey(); byte[] macKeyBytes = macKey.getEncoded(); encodedAssociation.write(macKeyBytes); Date expiry = association.getExpiry(); Long time = expiry.getTime(); DataOutputStream dos = new DataOutputStream(encodedAssociation); dos.writeLong(time); dos.flush(); Cipher cipher = Cipher.getInstance(CIPHER_ALGO); byte[] iv = new byte[16]; this.secureRandom.nextBytes(iv); IvParameterSpec ivParameterSpec = new IvParameterSpec(iv); cipher.init(Cipher.ENCRYPT_MODE, this.secretKeySpec, ivParameterSpec); byte[] handleValue = cipher.doFinal(encodedAssociation.toByteArray()); ByteArrayOutputStream result = new ByteArrayOutputStream(); result.write(iv); result.write(handleValue); if (null != this.macSecretKeySpec) { Mac mac = Mac.getInstance("HmacSHA256"); mac.init(this.macSecretKeySpec); byte[] toBeSigned = result.toByteArray(); byte[] signature = mac.doFinal(toBeSigned); result = new ByteArrayOutputStream(); result.write(signature); result.write(iv); result.write(handleValue); } String handle = Base64.encodeBase64URLSafeString(result.toByteArray()); this.secureRandom.setSeed(result.toByteArray()); if (handle.getBytes().length > 255) { throw new AssociationException("handle size > 255"); } if (type == Association.TYPE_HMAC_SHA1) { return Association.createHmacSha1(handle, macKeyBytes, expiry); } else if (type == Association.TYPE_HMAC_SHA256) { return Association.createHmacSha256(handle, macKeyBytes, expiry); } throw new AssociationException("unknown type: " + type); }
From source file:com.codefollower.lealone.omid.tso.persistence.BookKeeperStateLogger.java
/** * Initializes this logger object to add records. Implements the initialize * method of the StateLogger interface.//from w w w . j ava 2 s . co m * * @param cb * @param ctx */ @Override public void initialize(final LoggerInitCallback cb, Object ctx) throws LoggerException { TSOServerConfig config = ((BookKeeperStateBuilder.Context) ctx).config; bk.asyncCreateLedger(config.getEnsembleSize(), config.getQuorumSize(), BookKeeper.DigestType.CRC32, LEDGER_PASSWORD, new CreateCallback() { @Override public void createComplete(int rc, LedgerHandle lh, Object ctx) { if (rc == BKException.Code.OK) { try { BookKeeperStateLogger.this.lh = lh; ByteArrayOutputStream bos = new ByteArrayOutputStream(); DataOutputStream dos = new DataOutputStream(bos); dos.writeLong(lh.getId()); zk.create(LoggerConstants.OMID_LEDGER_ID_PATH, bos.toByteArray(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT, new LedgerIdCreateCallback(cb, bos.toByteArray()), ctx); } catch (IOException e) { LOG.error("Failed to write to zookeeper. ", e); cb.loggerInitComplete(Code.BKOPFAILED, BookKeeperStateLogger.this, ctx); } } else { LOG.error("Failed to create ledger. " + BKException.getMessage(rc)); cb.loggerInitComplete(Code.BKOPFAILED, BookKeeperStateLogger.this, ctx); } } }, ctx); }
From source file:org.apache.hadoop.hive.serde2.lazy.LazyUtils.java
/** * Write out a binary representation of a PrimitiveObject to a byte stream. * * @param out ByteStream.Output, an unsynchronized version of ByteArrayOutputStream, used as a * backing buffer for the the DataOutputStream * @param o the PrimitiveObject//w w w . j a va 2s. c om * @param oi the PrimitiveObjectInspector * @throws IOException on error during the write operation */ public static void writePrimitive(OutputStream out, Object o, PrimitiveObjectInspector oi) throws IOException { DataOutputStream dos = new DataOutputStream(out); try { switch (oi.getPrimitiveCategory()) { case BOOLEAN: boolean b = ((BooleanObjectInspector) oi).get(o); dos.writeBoolean(b); break; case BYTE: byte bt = ((ByteObjectInspector) oi).get(o); dos.writeByte(bt); break; case SHORT: short s = ((ShortObjectInspector) oi).get(o); dos.writeShort(s); break; case INT: int i = ((IntObjectInspector) oi).get(o); dos.writeInt(i); break; case LONG: long l = ((LongObjectInspector) oi).get(o); dos.writeLong(l); break; case FLOAT: float f = ((FloatObjectInspector) oi).get(o); dos.writeFloat(f); break; case DOUBLE: double d = ((DoubleObjectInspector) oi).get(o); dos.writeDouble(d); break; case BINARY: { BytesWritable bw = ((BinaryObjectInspector) oi).getPrimitiveWritableObject(o); out.write(bw.getBytes(), 0, bw.getLength()); break; } default: throw new RuntimeException("Hive internal error."); } } finally { // closing the underlying ByteStream should have no effect, the data should still be // accessible dos.close(); } }
From source file:com.yahoo.omid.tso.TimestampOracle.java
/** * Must be called holding an exclusive lock * //from w w w . j a v a2 s .c o m * return the next timestamp */ public long next(DataOutputStream toWal) throws IOException { last++; if (last == maxTimestamp) { maxTimestamp += TIMESTAMP_BATCH; toWal.writeByte(LoggerProtocol.TIMESTAMPORACLE); toWal.writeLong(maxTimestamp); if (LOG.isTraceEnabled()) { LOG.trace("Logging TimestampOracle " + maxTimestamp); } } if (LOG.isTraceEnabled()) { LOG.trace("Next timestamp: " + last); } return last; }
From source file:org.apache.hadoop.hdfs.server.namenode.TestNameNodeCorruptionRecovery.java
/** * Tests that a cluster's image is not damaged if checkpoint fails after * writing checkpoint time to the image directory but before writing checkpoint * time to the edits directory. This is a very rare failure scenario that can * only occur if the namenode is configured with separate directories for image * and edits. This test simulates the failure by forcing the fstime file for * edits to contain 0, so that it appears the checkpoint time for edits is less * than the checkpoint time for image./*from ww w . ja v a 2 s .co m*/ */ @Test public void testEditsFsTimeLessThanImageFsTime() throws Exception { // Create a cluster with separate directories for image and edits. Configuration conf = new Configuration(); File testDir = new File(System.getProperty("test.build.data", "build/test/data"), "dfs/"); conf.set("dfs.name.dir", new File(testDir, "name").getPath()); conf.set("dfs.name.edits.dir", new File(testDir, "edits").getPath()); cluster = new MiniDFSCluster(0, conf, 1, true, false, true, null, null, null, null); cluster.waitActive(); // Create several files to generate some edits. createFile("one"); createFile("two"); createFile("three"); assertTrue(checkFileExists("one")); assertTrue(checkFileExists("two")); assertTrue(checkFileExists("three")); // Restart to force a checkpoint. cluster.restartNameNode(); // Shutdown so that we can safely modify the fstime file. File[] editsFsTime = cluster.getNameNode().getFSImage().getFileNames(NameNodeFile.TIME, NameNodeDirType.EDITS); assertTrue("expected exactly one edits directory containing fstime file", editsFsTime.length == 1); cluster.shutdown(); // Write 0 into the fstime file for the edits directory. FileOutputStream fos = null; DataOutputStream dos = null; try { fos = new FileOutputStream(editsFsTime[0]); dos = new DataOutputStream(fos); dos.writeLong(0); } finally { IOUtils.cleanup(LOG, dos, fos); } // Restart to force another checkpoint, which should discard the old edits. cluster = new MiniDFSCluster(0, conf, 1, false, false, true, null, null, null, null); cluster.waitActive(); // Restart one more time. If all of the prior checkpoints worked correctly, // then we expect to load the image successfully and find the files. cluster.restartNameNode(); assertTrue(checkFileExists("one")); assertTrue(checkFileExists("two")); assertTrue(checkFileExists("three")); }