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:org.mobisocial.corral.CorralDownloadClient.java
private static String hashToString(long hash) { try {// w w w . j ava2 s . c om ByteArrayOutputStream bos = new ByteArrayOutputStream(); DataOutputStream dos = new DataOutputStream(bos); dos.writeLong(hash); dos.writeInt(-4); byte[] data = bos.toByteArray(); return Base64.encodeToString(data, Base64.DEFAULT).substring(0, 11); } catch (IOException e) { return null; } }
From source file:org.eclipse.swt.snippets.Snippet319.java
static byte[] convertToByteArray(MyType type) { DataOutputStream dataOutStream = null; try {/* w w w . j av a2 s.c om*/ ByteArrayOutputStream byteOutStream = new ByteArrayOutputStream(); dataOutStream = new DataOutputStream(byteOutStream); byte[] bytes = type.name.getBytes(); dataOutStream.writeInt(bytes.length); dataOutStream.write(bytes); dataOutStream.writeLong(type.time); return byteOutStream.toByteArray(); } catch (IOException e) { return null; } finally { if (dataOutStream != null) { try { dataOutStream.close(); } catch (IOException e) { } } } }
From source file:com.google.gwt.dev.javac.CachedCompilationUnit.java
public static void save(SourceFileCompilationUnit unit, OutputStream outputStream) throws Exception { DataOutputStream dos = null; try {//from w w w . ja v a 2 s.c om dos = new DataOutputStream(new BufferedOutputStream(outputStream)); // version dos.writeLong(CompilationUnitDiskCache.CACHE_VERSION); // simple stuff dos.writeLong(unit.getLastModified()); dos.writeUTF(unit.getDisplayLocation()); dos.writeUTF(unit.getTypeName()); dos.writeUTF(unit.getContentId().get()); dos.writeBoolean(unit.isSuperSource()); // compiled classes { Collection<CompiledClass> compiledClasses = unit.getCompiledClasses(); int size = compiledClasses.size(); dos.writeInt(size); if (size > 0) { // sort in enclosing order to be able to restore enclosing classes by name CompiledClass[] compiledClassesArray = compiledClasses .toArray(new CompiledClass[compiledClasses.size()]); Arrays.sort(compiledClassesArray, new Comparator<CompiledClass>() { public int compare(CompiledClass o1, CompiledClass o2) { int o1count = countMatches(o1.getInternalName(), Signature.C_DOLLAR); int o2count = countMatches(o2.getInternalName(), Signature.C_DOLLAR); return o1count - o2count; } }); // store for (CompiledClass compiledClass : compiledClassesArray) { // internal name dos.writeUTF(compiledClass.getInternalName()); // is local dos.writeBoolean(compiledClass.isLocal()); // bytes byte[] bytes = compiledClass.getBytes(); dos.writeInt(bytes.length); dos.write(bytes); // enclosing class, write the name only CompiledClass enclosingClass = compiledClass.getEnclosingClass(); String enclosingClassName = enclosingClass != null ? enclosingClass.getInternalName() : ""; dos.writeUTF(enclosingClassName); } } } // dependencies { Set<ContentId> dependencies = unit.getDependencies(); int size = dependencies.size(); dos.writeInt(size); if (size > 0) { for (ContentId contentId : dependencies) { dos.writeUTF(contentId.get()); } } } // JSNI methods { List<JsniMethod> jsniMethods = unit.getJsniMethods(); int size = jsniMethods.size(); dos.writeInt(size); if (size > 0) { for (JsniMethod jsniMethod : jsniMethods) { dos.writeUTF(jsniMethod.name()); JsFunction function = jsniMethod.function(); SourceInfo sourceInfo = function.getSourceInfo(); dos.writeInt(sourceInfo.getStartPos()); dos.writeInt(sourceInfo.getEndPos()); dos.writeInt(sourceInfo.getStartLine()); dos.writeUTF(function.toSource()); } } } // Method lookup { MethodArgNamesLookup methodArgs = unit.getMethodArgs(); MethodArgNamesLookup.save(methodArgs, dos); } } finally { IOUtils.closeQuietly(dos); } }
From source file:gridool.util.xfer.TransferUtils.java
public static void send(@Nonnull final FastByteArrayOutputStream data, @Nonnull final String fileName, @Nullable final String writeDirPath, @Nonnull final InetAddress dstAddr, final int dstPort, final boolean append, final boolean sync, @Nullable final TransferClientHandler handler) throws IOException { final SocketAddress dstSockAddr = new InetSocketAddress(dstAddr, dstPort); SocketChannel channel = null; Socket socket = null;/*from w w w. j a v a2 s.com*/ final OutputStream out; try { channel = SocketChannel.open(); socket = channel.socket(); socket.connect(dstSockAddr); out = socket.getOutputStream(); } catch (IOException e) { LOG.error("failed to connect: " + dstSockAddr, e); IOUtils.closeQuietly(channel); NetUtils.closeQuietly(socket); throw e; } DataInputStream din = null; if (sync) { InputStream in = socket.getInputStream(); din = new DataInputStream(in); } final DataOutputStream dos = new DataOutputStream(out); final StopWatch sw = new StopWatch(); try { IOUtils.writeString(fileName, dos); IOUtils.writeString(writeDirPath, dos); long nbytes = data.size(); dos.writeLong(nbytes); dos.writeBoolean(append); dos.writeBoolean(sync); if (handler == null) { dos.writeBoolean(false); } else { dos.writeBoolean(true); handler.writeAdditionalHeader(dos); } // send file using zero-copy send data.writeTo(out); if (LOG.isDebugEnabled()) { LOG.debug("Sent a file data '" + fileName + "' of " + nbytes + " bytes to " + dstSockAddr.toString() + " in " + sw.toString()); } if (sync) {// receive ack in sync mode long remoteRecieved = din.readLong(); if (remoteRecieved != nbytes) { throw new IllegalStateException( "Sent " + nbytes + " bytes, but remote node received " + remoteRecieved + " bytes"); } } } catch (FileNotFoundException e) { LOG.error(PrintUtils.prettyPrintStackTrace(e, -1)); throw e; } catch (IOException e) { LOG.error(PrintUtils.prettyPrintStackTrace(e, -1)); throw e; } finally { IOUtils.closeQuietly(din, dos); IOUtils.closeQuietly(channel); NetUtils.closeQuietly(socket); } }
From source file:net.datenwerke.transloader.primitive.WrapperConverter.java
private static void write(Object wrapper, DataOutputStream dataStream) throws IOException { char typeCode = getTypeCode(wrapper); switch (typeCode) { case 'B': dataStream.writeByte(intValue(wrapper)); break;/*from w w w . j a va 2 s .c om*/ case 'C': dataStream.writeChar(charValue(wrapper)); break; case 'S': dataStream.writeShort(intValue(wrapper)); break; case 'I': dataStream.writeInt(intValue(wrapper)); break; case 'J': dataStream.writeLong(number(wrapper).longValue()); break; case 'F': dataStream.writeFloat(number(wrapper).floatValue()); break; case 'D': dataStream.writeDouble(number(wrapper).doubleValue()); break; case 'Z': dataStream.writeBoolean(booleanValue(wrapper)); } }
From source file:org.apache.hive.hcatalog.streaming.mutate.client.AcidTableSerializer.java
/** Returns a base 64 encoded representation of the supplied {@link AcidTable}. */ public static String encode(AcidTable table) throws IOException { DataOutputStream data = null; ByteArrayOutputStream bytes = new ByteArrayOutputStream(); try {/*from w w w . j a v a 2 s . c o m*/ data = new DataOutputStream(bytes); data.writeUTF(table.getDatabaseName()); data.writeUTF(table.getTableName()); data.writeBoolean(table.createPartitions()); if (table.getTransactionId() <= 0) { LOG.warn("Transaction ID <= 0. The recipient is probably expecting a transaction ID."); } data.writeLong(table.getTransactionId()); data.writeByte(table.getTableType().getId()); Table metaTable = table.getTable(); if (metaTable != null) { byte[] thrift = new TSerializer(new TCompactProtocol.Factory()).serialize(metaTable); data.writeInt(thrift.length); data.write(thrift); } else { LOG.warn("Meta store table is null. The recipient is probably expecting an instance."); data.writeInt(0); } } catch (TException e) { throw new IOException("Error serializing meta store table.", e); } finally { data.close(); } return PROLOG_V1 + new String(Base64.encodeBase64(bytes.toByteArray()), Charset.forName("UTF-8")); }
From source file:org.jax.haplotype.io.SnpStreamUtil.java
/** * Write the snp positions as a binary file using the given base directory * @param chromosome// w w w . j ava 2s .co m * the chromosome to write * @throws IOException * if the write operation fails */ private static void writeBinarySnpPositions(StrainChromosome chromosome, DataOutputStream dataOutputStream, StreamDirection streamDirection) throws IOException { SingleNucleotidePolymorphism[] snps = chromosome.getSingleNucleotidePolymorphisms(); dataOutputStream.write(StreamDirection.streamDirectionToByte(streamDirection)); dataOutputStream.writeInt(chromosome.getChromosomeNumber()); dataOutputStream.writeLong(snps[0].getPositionInBasePairs()); dataOutputStream .writeLong(1L + snps[snps.length - 1].getPositionInBasePairs() - snps[0].getPositionInBasePairs()); dataOutputStream.writeLong(snps.length); if (streamDirection == StreamDirection.FORWARD) { for (int i = 0; i < snps.length; i++) { dataOutputStream.writeLong(snps[i].getPositionInBasePairs()); } } else { assert streamDirection == StreamDirection.REVERSE; for (int i = snps.length - 1; i >= 0; i--) { dataOutputStream.writeLong(snps[i].getPositionInBasePairs()); } } }
From source file:org.apache.activemq.bugs.AMQ7067Test.java
protected static XATransactionId createXATransaction() throws IOException { ByteArrayOutputStream baos = new ByteArrayOutputStream(); DataOutputStream os = new DataOutputStream(baos); os.writeLong(r.nextInt()); os.close();//from www. j a va 2s . c o m byte[] bs = baos.toByteArray(); XATransactionId xid = new XATransactionId(); xid.setBranchQualifier(bs); xid.setGlobalTransactionId(bs); xid.setFormatId(55); return xid; }
From source file:org.hyperic.hq.measurement.agent.server.SenderThread.java
private static String encodeRecord(Record record) throws IOException { ByteArrayOutputStream bOs;// w w w .jav a 2 s . c o m DataOutputStream dOs; bOs = new ByteArrayOutputStream(); dOs = new DataOutputStream(bOs); dOs.writeInt(record.derivedID); dOs.writeLong(record.data.getTimestamp()); dOs.writeInt(record.dsnId); dOs.writeDouble(record.data.getValue()); return Base64.encode(bOs.toByteArray()); }
From source file:gridool.util.xfer.TransferUtils.java
public static void sendfile(@Nonnull final File file, final long fromPos, final long count, @Nullable final String writeDirPath, @Nonnull final InetAddress dstAddr, final int dstPort, final boolean append, final boolean sync, @Nonnull final TransferClientHandler handler) throws IOException { if (!file.exists()) { throw new IllegalArgumentException(file.getAbsolutePath() + " does not exist"); }/*from w w w.j a v a2 s. co m*/ if (!file.isFile()) { throw new IllegalArgumentException(file.getAbsolutePath() + " is not file"); } if (!file.canRead()) { throw new IllegalArgumentException(file.getAbsolutePath() + " cannot read"); } final SocketAddress dstSockAddr = new InetSocketAddress(dstAddr, dstPort); SocketChannel channel = null; Socket socket = null; final OutputStream out; try { channel = SocketChannel.open(); socket = channel.socket(); socket.connect(dstSockAddr); out = socket.getOutputStream(); } catch (IOException e) { LOG.error("failed to connect: " + dstSockAddr, e); IOUtils.closeQuietly(channel); NetUtils.closeQuietly(socket); throw e; } DataInputStream din = null; if (sync) { InputStream in = socket.getInputStream(); din = new DataInputStream(in); } final DataOutputStream dos = new DataOutputStream(out); final StopWatch sw = new StopWatch(); FileInputStream src = null; final long nbytes; try { src = new FileInputStream(file); FileChannel fc = src.getChannel(); String fileName = file.getName(); IOUtils.writeString(fileName, dos); IOUtils.writeString(writeDirPath, dos); long xferBytes = (count == -1L) ? fc.size() : count; dos.writeLong(xferBytes); dos.writeBoolean(append); // append=false dos.writeBoolean(sync); if (handler == null) { dos.writeBoolean(false); } else { dos.writeBoolean(true); handler.writeAdditionalHeader(dos); } // send file using zero-copy send nbytes = fc.transferTo(fromPos, xferBytes, channel); if (LOG.isDebugEnabled()) { LOG.debug("Sent a file '" + file.getAbsolutePath() + "' of " + nbytes + " bytes to " + dstSockAddr.toString() + " in " + sw.toString()); } if (sync) {// receive ack in sync mode long remoteRecieved = din.readLong(); if (remoteRecieved != xferBytes) { throw new IllegalStateException( "Sent " + xferBytes + " bytes, but remote node received " + remoteRecieved + " bytes"); } } } catch (FileNotFoundException e) { LOG.error(PrintUtils.prettyPrintStackTrace(e, -1)); throw e; } catch (IOException e) { LOG.error(PrintUtils.prettyPrintStackTrace(e, -1)); throw e; } finally { IOUtils.closeQuietly(src); IOUtils.closeQuietly(din, dos); IOUtils.closeQuietly(channel); NetUtils.closeQuietly(socket); } }