List of usage examples for java.io DataOutputStream writeInt
public final void writeInt(int v) throws IOException
int to the underlying output stream as four bytes, high byte first. From source file:org.syncany.operations.init.ApplicationLink.java
private byte[] getPlaintextStorageXml() throws Exception { ByteArrayOutputStream plaintextByteArrayOutputStream = new ByteArrayOutputStream(); DataOutputStream plaintextOutputStream = new DataOutputStream(plaintextByteArrayOutputStream); plaintextOutputStream.writeInt(transferSettings.getType().getBytes().length); plaintextOutputStream.write(transferSettings.getType().getBytes()); GZIPOutputStream plaintextGzipOutputStream = new GZIPOutputStream(plaintextOutputStream); new Persister(new Format(0)).write(transferSettings, plaintextGzipOutputStream); plaintextGzipOutputStream.close();/*from w w w .jav a 2 s . co m*/ return plaintextByteArrayOutputStream.toByteArray(); }
From source file:org.structr.core.graph.SyncCommand.java
public static void serialize(DataOutputStream outputStream, Object obj) throws IOException { if (obj != null) { Class clazz = obj.getClass(); Byte type = typeMap.get(clazz); if (type != null) { if (clazz.isArray()) { Object[] array = (Object[]) obj; outputStream.writeByte(type); outputStream.writeInt(array.length); // serialize array for (Object o : (Object[]) obj) { serialize(outputStream, o); }/*from www. j a v a 2s. c o m*/ } else { outputStream.writeByte(type); writeObject(outputStream, type, obj); //outputStream.writeUTF(obj.toString()); } } else { logger.log(Level.WARNING, "Unable to serialize object of type {0}, type not supported", obj.getClass()); } } else { // null value outputStream.writeByte((byte) 127); } outputStream.flush(); }
From source file:org.chromium.chrome.browser.tabmodel.TabPersistentStore.java
/** * Serializes data from a {@link TabModelSelector} into a byte array. * @param standardInfo Info about the regular {@link TabModel}. * @param incognitoInfo Info about the Incognito {@link TabModel}. * @param tabsBeingRestored Tabs that are in the process of being restored. * @return {@code byte[]} containing the serialized state of {@code selector}. *//*from w w w.ja v a 2s .com*/ public static byte[] serializeMetadata(TabModelMetadata standardInfo, TabModelMetadata incognitoInfo, @Nullable List<TabRestoreDetails> tabsBeingRestored) throws IOException { ThreadUtils.assertOnUiThread(); int standardCount = standardInfo.ids.size(); int incognitoCount = incognitoInfo.ids.size(); // Determine how many Tabs there are, including those not yet been added to the TabLists. int numAlreadyLoaded = incognitoCount + standardCount; int numStillBeingLoaded = tabsBeingRestored == null ? 0 : tabsBeingRestored.size(); int numTabsTotal = numStillBeingLoaded + numAlreadyLoaded; // Save the index file containing the list of tabs to restore. ByteArrayOutputStream output = new ByteArrayOutputStream(); DataOutputStream stream = new DataOutputStream(output); stream.writeInt(SAVED_STATE_VERSION); stream.writeInt(numTabsTotal); stream.writeInt(incognitoCount); stream.writeInt(incognitoInfo.index); stream.writeInt(standardInfo.index + incognitoCount); Log.d(TAG, "Serializing tab lists; counts: " + standardCount + ", " + incognitoCount + ", " + (tabsBeingRestored == null ? 0 : tabsBeingRestored.size())); // Save incognito state first, so when we load, if the incognito files are unreadable // we can fall back easily onto the standard selected tab. for (int i = 0; i < incognitoCount; i++) { stream.writeInt(incognitoInfo.ids.get(i)); stream.writeUTF(incognitoInfo.urls.get(i)); } for (int i = 0; i < standardCount; i++) { stream.writeInt(standardInfo.ids.get(i)); stream.writeUTF(standardInfo.urls.get(i)); } // Write out information about the tabs that haven't finished being loaded. // We shouldn't have to worry about Tab duplication because the tab details are processed // only on the UI Thread. if (tabsBeingRestored != null) { for (TabRestoreDetails details : tabsBeingRestored) { stream.writeInt(details.id); stream.writeUTF(details.url); } } stream.close(); return output.toByteArray(); }
From source file:org.apache.hadoop.hbase.io.hfile.TestFixedFileTrailer.java
private void serializeAsWritable(DataOutputStream output, FixedFileTrailer fft) throws IOException { BlockType.TRAILER.write(output);/*from w w w. jav a2s. c om*/ output.writeLong(fft.getFileInfoOffset()); output.writeLong(fft.getLoadOnOpenDataOffset()); output.writeInt(fft.getDataIndexCount()); output.writeLong(fft.getUncompressedDataIndexSize()); output.writeInt(fft.getMetaIndexCount()); output.writeLong(fft.getTotalUncompressedBytes()); output.writeLong(fft.getEntryCount()); output.writeInt(fft.getCompressionCodec().ordinal()); output.writeInt(fft.getNumDataIndexLevels()); output.writeLong(fft.getFirstDataBlockOffset()); output.writeLong(fft.getLastDataBlockOffset()); Bytes.writeStringFixedSize(output, fft.getComparatorClassName(), MAX_COMPARATOR_NAME_LENGTH); output.writeInt(FixedFileTrailer.materializeVersion(fft.getMajorVersion(), fft.getMinorVersion())); }
From source file:org.ejbca.core.protocol.cmp.CmpTestCase.java
private static byte[] createTcpMessage(byte[] msg) throws IOException { ByteArrayOutputStream bao = new ByteArrayOutputStream(); DataOutputStream dos = new DataOutputStream(bao); // 0 is pkiReq int msgType = 0; int len = msg.length; // return msg length = msg.length + 3; 1 byte version, 1 byte flags and // 1 byte message type dos.writeInt(len + 3); dos.writeByte(10);/*from ww w.j a v a 2 s. c o m*/ dos.writeByte(0); // 1 if we should close, 0 otherwise dos.writeByte(msgType); dos.write(msg); dos.flush(); return bao.toByteArray(); }
From source file:org.xenei.bloomgraph.SerializableNode.java
/** * write string to the output. Writes the length first then the data. writes * -1 for a null. Data are encodes as UTF-8. * //w w w.jav a2s . c o m * @param os * The output to write to * @param s * The string to write. * @throws IOException */ private void write(DataOutputStream os, String s) throws IOException { if (s == null) { os.writeInt(-1); } else { byte[] b = encodeString(s); os.writeInt(b.length); if (b.length > 0) { os.write(b); } } }
From source file:org.apache.apex.malhar.lib.function.FunctionOperator.java
private byte[] functionClassData(Function f) { Class<? extends Function> classT = f.getClass(); byte[] classBytes = null; byte[] classNameBytes = null; String className = classT.getName(); try {/* w w w . j av a 2 s . c o m*/ classNameBytes = className.replace('.', '/').getBytes(); classBytes = IOUtils.toByteArray( classT.getClassLoader().getResourceAsStream(className.replace('.', '/') + ".class")); int cursor = 0; for (int j = 0; j < classBytes.length; j++) { if (classBytes[j] != classNameBytes[cursor]) { cursor = 0; } else { cursor++; } if (cursor == classNameBytes.length) { for (int p = 0; p < classNameBytes.length; p++) { if (classBytes[j - p] == '$') { classBytes[j - p] = '_'; } } cursor = 0; } } ClassReader cr = new ClassReader(new ByteArrayInputStream(classBytes)); ClassWriter cw = new ClassWriter(0); AnnonymousClassModifier annonymousClassModifier = new AnnonymousClassModifier(Opcodes.ASM4, cw); cr.accept(annonymousClassModifier, 0); classBytes = cw.toByteArray(); } catch (IOException e) { throw new RuntimeException(e); } int dataLength = classNameBytes.length + 4 + 4; ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(dataLength); DataOutputStream output = new DataOutputStream(byteArrayOutputStream); try { output.writeInt(classNameBytes.length); output.write(className.replace('$', '_').getBytes()); output.writeInt(classBytes.length); output.write(classBytes); } catch (IOException e) { throw new RuntimeException(e); } finally { try { output.flush(); output.close(); } catch (IOException e) { throw new RuntimeException(e); } } return byteArrayOutputStream.toByteArray(); }
From source file:ReadWriteStreams.java
public void writeStream(String[] sData, boolean[] bData, int[] iData) { try {/*w ww.j a v a 2s. com*/ // Write data into an internal byte array ByteArrayOutputStream strmBytes = new ByteArrayOutputStream(); // Write Java data types into the above byte array DataOutputStream strmDataType = new DataOutputStream(strmBytes); byte[] record; for (int i = 0; i < sData.length; i++) { // Write Java data types strmDataType.writeUTF(sData[i]); strmDataType.writeBoolean(bData[i]); strmDataType.writeInt(iData[i]); // Clear any buffered data strmDataType.flush(); // Get stream data into byte array and write record record = strmBytes.toByteArray(); rs.addRecord(record, 0, record.length); // Toss any data in the internal array so writes // starts at beginning (of the internal array) strmBytes.reset(); } strmBytes.close(); strmDataType.close(); } catch (Exception e) { db(e.toString()); } }
From source file:org.structr.core.graph.SyncCommand.java
private static void writeObject(final DataOutputStream outputStream, final byte type, final Object value) throws IOException { switch (type) { case 0:/*from ww w . j a v a 2 s. co m*/ case 1: outputStream.writeByte((byte) value); break; case 2: case 3: outputStream.writeShort((short) value); break; case 4: case 5: outputStream.writeInt((int) value); break; case 6: case 7: outputStream.writeLong((long) value); break; case 8: case 9: outputStream.writeFloat((float) value); break; case 10: case 11: outputStream.writeDouble((double) value); break; case 12: case 13: outputStream.writeChar((char) value); break; case 14: case 15: serializeData(outputStream, ((String) value).getBytes("UTF-8")); // this doesn't work with very long strings //outputStream.writeUTF((String)value); break; case 16: case 17: outputStream.writeBoolean((boolean) value); break; } }
From source file:com.msopentech.thali.utilities.universal.HttpKeySocksProxyClientConnOperator.java
@Override public void openConnection(final OperatedClientConnection conn, final HttpHost target, final InetAddress local, final HttpContext context, final HttpParams params) throws IOException { Socket socket = null;/*from w w w .jav a2s . co m*/ Socket sslSocket = null; try { if (conn == null || target == null || params == null) { throw new IllegalArgumentException("Required argument may not be null"); } if (conn.isOpen()) { throw new IllegalStateException("Connection must not be open"); } // The original NetCipher code uses a SchemeSocketFactory class that isn't supported by the version // of Apache that ships standard with Android. It also doesn't support the layered socket factory // interface either. We work around this later on but for now we just get our HttpKeySSLSocketFactory Scheme scheme = schemeRegistry.getScheme(target.getSchemeName()); HttpKeySSLSocketFactory httpKeySSLSocketFactory = (HttpKeySSLSocketFactory) scheme.getSocketFactory(); int port = scheme.resolvePort(target.getPort()); String host = target.getHostName(); // Perform explicit SOCKS4a connection request. SOCKS4a supports remote host name resolution // (i.e., Tor resolves the hostname, which may be an onion address). // The Android (Apache Harmony) Socket class appears to support only SOCKS4 and throws an // exception on an address created using INetAddress.createUnresolved() -- so the typical // technique for using Java SOCKS4a/5 doesn't appear to work on Android: // https://android.googlesource.com/platform/libcore/+/master/luni/src/main/java/java/net/PlainSocketImpl.java // See also: http://www.mit.edu/~foley/TinFoil/src/tinfoil/TorLib.java, for a similar implementation // From http://en.wikipedia.org/wiki/SOCKS#SOCKS4a: // // field 1: SOCKS version number, 1 byte, must be 0x04 for this version // field 2: command code, 1 byte: // 0x01 = establish a TCP/IP stream connection // 0x02 = establish a TCP/IP port binding // field 3: network byte order port number, 2 bytes // field 4: deliberate invalid IP address, 4 bytes, first three must be 0x00 and the last one must not be 0x00 // field 5: the user ID string, variable length, terminated with a null (0x00) // field 6: the domain name of the host we want to contact, variable length, terminated with a null (0x00) socket = new Socket(); conn.opening(socket, target); socket.setSoTimeout(READ_TIMEOUT_MILLISECONDS); socket.connect(proxy.address(), CONNECT_TIMEOUT_MILLISECONDS); DataOutputStream outputStream = new DataOutputStream(socket.getOutputStream()); outputStream.write((byte) 0x04); outputStream.write((byte) 0x01); outputStream.writeShort((short) port); outputStream.writeInt(0x01); outputStream.write((byte) 0x00); outputStream.write(host.getBytes()); outputStream.write((byte) 0x00); DataInputStream inputStream = new DataInputStream(socket.getInputStream()); if (inputStream.readByte() != (byte) 0x00 || inputStream.readByte() != (byte) 0x5a) { throw new IOException("SOCKS4a connect failed"); } inputStream.readShort(); inputStream.readInt(); // In the NetCipher code we cast to SchemeLayeredSocketFactory and call createLayeredSocket which amongst // other things takes 'params' as an argument. But none of this is supported in Android. When I looked in // Java at what createLayeredSocket was actually doing it was just calling createSocket with exactly the // arguments used below (it ignored params completely). So we should be good. sslSocket = ((HttpKeySSLSocketFactory) httpKeySSLSocketFactory).createSocket(socket, host, port, true); conn.opening(sslSocket, target); sslSocket.setSoTimeout(READ_TIMEOUT_MILLISECONDS); prepareSocket(sslSocket, context, params); conn.openCompleted(httpKeySSLSocketFactory.isSecure(sslSocket), params); // TODO: clarify which connection throws java.net.SocketTimeoutException? } catch (IOException e) { try { if (sslSocket != null) { sslSocket.close(); } if (socket != null) { socket.close(); } } catch (IOException ioe) { } throw e; } }