Example usage for java.io DataOutputStream writeUTF

List of usage examples for java.io DataOutputStream writeUTF

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Introduction

In this page you can find the example usage for java.io DataOutputStream writeUTF.

Prototype

public final void writeUTF(String str) throws IOException

Source Link

Document

Writes a string to the underlying output stream using modified UTF-8 encoding in a machine-independent manner.

Usage

From source file:org.exist.dom.ElementImpl.java

/**
 * Serializes a (persistent DOM) Element to a byte array
 *
 * data = signature childCount nodeIdUnitsLength nodeId attributesCount localNameId namespace? prefixData?
 *
 * signature = 0x20 | localNameLength | hasNamespace? | isDirty?
 *
 * localNameLength = noContent OR intContent OR shortContent OR byteContent
 * noContent = 0x0// w ww  .j a v a2  s .  c  o  m
 * intContent = 0x1
 * shortContent = 0x2
 * byteContent = 0x3
 *
 * hasNamespace = 0x10
 *
 * isDirty = 0x8
 *
 * childCount = [int] (4 bytes) The number of child nodes
 * nodeIdUnitsLength = [short] (2 bytes) The number of units of the element's NodeId
 * nodeId = @see org.exist.numbering.DLNBase#serialize(byte[], int)
 * attributesCount = [short] (2 bytes) The number of attributes
 *
 * localNameId = [int] (4 bytes) | [short] (2 bytes) | [byte] 1 byte. The Id of the element's local name from SymbolTable (symbols.dbx)
 *
 * namespace = namespaceUriId namespacePrefixLength elementNamespacePrefix?
 * namespaceUriId = [short] (2 bytes) The Id of the namespace URI from SymbolTable (symbols.dbx)
 * namespacePrefixLength = [short] (2 bytes)
 * elementNamespacePrefix = eUtf8
 *
 * eUtf8 = @see org.exist.util.UTF8#encode(java.lang.String, byte[], int)
 *
 * prefixData = namespaceMappingsCount namespaceMapping+
 * namespaceMappingsCount = [short] (2 bytes)
 * namespaceMapping = namespacePrefix namespaceUriId
 * namespacePrefix = jUtf8
 *
 * jUtf8 = @see java.io.DataOutputStream#writeUTF(java.lang.String)
 */
@Override
public byte[] serialize() {
    if (nodeId == null) {
        throw new RuntimeException("nodeId = null for element: " + getQName().getStringValue());
    }
    try {
        final SymbolTable symbols = ownerDocument.getBrokerPool().getSymbols();
        byte[] prefixData = null;
        // serialize namespace prefixes declared in this element
        if (declaresNamespacePrefixes()) {
            final ByteArrayOutputStream bout = new ByteArrayOutputStream();
            final DataOutputStream out = new DataOutputStream(bout);
            out.writeShort(namespaceMappings.size());
            for (final Iterator<Map.Entry<String, String>> i = namespaceMappings.entrySet().iterator(); i
                    .hasNext();) {
                final Map.Entry<String, String> entry = i.next();
                out.writeUTF(entry.getKey());
                final short nsId = symbols.getNSSymbol(entry.getValue());
                out.writeShort(nsId);
            }
            prefixData = bout.toByteArray();
        }

        final short id = symbols.getSymbol(this);
        final boolean hasNamespace = nodeName.needsNamespaceDecl();
        short nsId = 0;
        if (hasNamespace) {
            nsId = symbols.getNSSymbol(nodeName.getNamespaceURI());
        }
        final byte idSizeType = Signatures.getSizeType(id);
        byte signature = (byte) ((Signatures.Elem << 0x5) | idSizeType);
        int prefixLen = 0;
        if (hasNamespace) {
            if (nodeName.getPrefix() != null && nodeName.getPrefix().length() > 0) {
                prefixLen = UTF8.encoded(nodeName.getPrefix());
            }
            signature |= 0x10;
        }
        if (isDirty) {
            signature |= 0x8;
        }
        final int nodeIdLen = nodeId.size();
        final byte[] data = ByteArrayPool.getByteArray(
                StoredNode.LENGTH_SIGNATURE_LENGTH + LENGTH_ELEMENT_CHILD_COUNT + NodeId.LENGTH_NODE_ID_UNITS
                        + nodeIdLen + LENGTH_ATTRIBUTES_COUNT + Signatures.getLength(idSizeType)
                        + (hasNamespace ? prefixLen + 4 : 0) + (prefixData != null ? prefixData.length : 0));
        int next = 0;
        data[next] = signature;
        next += StoredNode.LENGTH_SIGNATURE_LENGTH;
        ByteConversion.intToByte(children, data, next);
        next += LENGTH_ELEMENT_CHILD_COUNT;
        ByteConversion.shortToByte((short) nodeId.units(), data, next);
        next += NodeId.LENGTH_NODE_ID_UNITS;
        nodeId.serialize(data, next);
        next += nodeIdLen;
        ByteConversion.shortToByte(attributes, data, next);
        next += LENGTH_ATTRIBUTES_COUNT;
        Signatures.write(idSizeType, id, data, next);
        next += Signatures.getLength(idSizeType);
        if (hasNamespace) {
            ByteConversion.shortToByte(nsId, data, next);
            next += LENGTH_NS_ID;
            ByteConversion.shortToByte((short) prefixLen, data, next);
            next += LENGTH_PREFIX_LENGTH;
            if (nodeName.getPrefix() != null && nodeName.getPrefix().length() > 0) {
                UTF8.encode(nodeName.getPrefix(), data, next);
            }
            next += prefixLen;
        }
        if (prefixData != null) {
            System.arraycopy(prefixData, 0, data, next, prefixData.length);
        }
        return data;
    } catch (final IOException e) {
        return null;
    }
}

From source file:com.trigger_context.Main_Service.java

public void senderSync(DataInputStream in, DataOutputStream out, String folder) {
    String tfolder = folder + (folder.charAt(folder.length() - 1) == '/' ? "" : "/");
    File f = new File(folder);
    File file[] = f.listFiles();//  w w  w .  ja v  a 2s.co  m
    // noti(file.toString(),"");
    String md5 = null;
    HashMap<String, File> hm = new HashMap<String, File>();

    HashSet<String> A = new HashSet<String>();
    for (File element : file) {
        hm.put(md5 = calculateMD5(element), element);
        A.add(md5);
    }
    // noti(hm.toString(),"");
    int numB = 0;
    try {
        numB = in.readInt();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        noti("error reading 1st int in sendersync", "");
        e.printStackTrace();
    }
    HashSet<String> B = new HashSet<String>();
    for (int i = 0; i < numB; i++) {
        try {
            B.add(in.readUTF());
        } catch (IOException e1) {
            noti("error in readins md5", "");
            e1.printStackTrace();
        }
    }
    HashSet<String> aMb = new HashSet<String>(A);
    aMb.removeAll(B);
    int l1 = aMb.size();
    try {
        out.writeInt(l1);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        noti("error in writing 1st int", "");
        e.printStackTrace();
    }
    Iterator<String> itr = aMb.iterator();
    while (itr.hasNext()) {
        f = hm.get(itr.next());
        sendFile(out, f.getPath());
    }
    HashSet<String> bMa = new HashSet<String>(B);
    bMa.removeAll(A);
    int l2 = bMa.size();
    try {
        out.writeInt(l2);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        noti("error in writing 2nd int", "");
        e.printStackTrace();
    }
    itr = bMa.iterator();
    while (itr.hasNext()) {
        md5 = itr.next();
        try {
            out.writeUTF(md5);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            noti("error in sending md5", "");
            e.printStackTrace();
        }
        recvFile(in, folder);
    }
}

From source file:org.apache.geode.internal.cache.tier.sockets.HandShake.java

public void accept(OutputStream out, InputStream in, byte epType, int qSize,
        CommunicationMode communicationMode, Principal principal) throws IOException {
    DataOutputStream dos = new DataOutputStream(out);
    DataInputStream dis;//  w  w  w. j av a2  s  . c  o  m
    if (clientVersion.compareTo(Version.CURRENT) < 0) {
        dis = new VersionedDataInputStream(in, clientVersion);
        dos = new VersionedDataOutputStream(dos, clientVersion);
    } else {
        dis = new DataInputStream(in);
    }
    // Write ok reply
    if (communicationMode.isWAN() && principal != null) {
        dos.writeByte(REPLY_WAN_CREDENTIALS);
    } else {
        dos.writeByte(REPLY_OK);// byte 59
    }

    // additional byte of wan site needs to send for Gateway BC
    if (communicationMode.isWAN()) {
        Version.writeOrdinal(dos, ServerHandShakeProcessor.currentServerVersion.ordinal(), true);
    }

    dos.writeByte(epType);
    dos.writeInt(qSize);

    // Write the server's member
    DistributedMember member = this.system.getDistributedMember();
    ServerHandShakeProcessor.writeServerMember(member, dos);

    // Write no message
    dos.writeUTF("");

    // Write delta-propagation property value if this is not WAN.
    if (!communicationMode.isWAN() && this.clientVersion.compareTo(Version.GFE_61) >= 0) {
        dos.writeBoolean(((InternalDistributedSystem) this.system).getConfig().getDeltaPropagation());
    }

    // Neeraj: Now if the communication mode is GATEWAY_TO_GATEWAY
    // and principal not equal to null then send the credentials also
    if (communicationMode.isWAN() && principal != null) {
        sendCredentialsForWan(dos, dis);
    }

    // Write the distributed system id if this is a 6.6 or greater client
    // on the remote side of the gateway
    if (communicationMode.isWAN() && this.clientVersion.compareTo(Version.GFE_66) >= 0
            && ServerHandShakeProcessor.currentServerVersion.compareTo(Version.GFE_66) >= 0) {
        dos.writeByte(
                ((InternalDistributedSystem) this.system).getDistributionManager().getDistributedSystemId());
    }

    if ((communicationMode.isWAN()) && this.clientVersion.compareTo(Version.GFE_80) >= 0
            && ServerHandShakeProcessor.currentServerVersion.compareTo(Version.GFE_80) >= 0) {
        int pdxSize = PeerTypeRegistration.getPdxRegistrySize();
        dos.writeInt(pdxSize);
    }

    // Flush
    dos.flush();
}

From source file:com.android.launcher2.Launcher.java

private static void writeConfiguration(Context context, LocaleConfiguration configuration) {
    DataOutputStream out = null;
    try {//w w  w.j a va 2  s . co  m
        out = new DataOutputStream(context.openFileOutput(PREFERENCES, MODE_PRIVATE));
        out.writeUTF(configuration.locale);
        out.writeInt(configuration.mcc);
        out.writeInt(configuration.mnc);
        out.flush();
    } catch (FileNotFoundException e) {
        // Ignore
    } catch (IOException e) {
        //noinspection ResultOfMethodCallIgnored
        context.getFileStreamPath(PREFERENCES).delete();
    } finally {
        if (out != null) {
            try {
                out.close();
            } catch (IOException e) {
                // Ignore
            }
        }
    }
}

From source file:org.alfresco.repo.search.impl.lucene.index.IndexInfo.java

/**
 * @param id String//from  w ww .java  2  s . com
 * @param toDelete Set<String>
 * @param fileName String
 * @throws IOException
 * @throws FileNotFoundException
 */
private void persistDeletions(String id, Set<String> toDelete, String fileName)
        throws IOException, FileNotFoundException {
    File location = new File(indexDirectory, id).getCanonicalFile();
    if (!location.exists()) {
        if (!location.mkdirs()) {
            throw new IndexerException("Failed to make index directory " + location);
        }
    }
    // Write deletions
    DataOutputStream os = new DataOutputStream(
            new BufferedOutputStream(new FileOutputStream(new File(location, fileName).getCanonicalFile())));
    os.writeInt(toDelete.size());
    for (String ref : toDelete) {
        os.writeUTF(ref);
    }
    os.flush();
    os.close();
}

From source file:org.motechproject.mobile.web.OXDFormUploadServlet.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods./*  w ww .  jav  a 2 s.  c  o m*/
 * 
 * @param request
 *            servlet request
 * @param response
 *            servlet response
 * @throws ServletException
 *             if a servlet-specific error occurs
 * @throws IOException
 *             if an I/O error occurs
 */
@RequestMapping(method = RequestMethod.POST)
public void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    long startTime = System.currentTimeMillis();

    IMPService impService = (IMPService) appCtx.getBean("impService");
    StudyProcessor studyProcessor = (StudyProcessor) appCtx.getBean("studyProcessor");

    InputStream input = request.getInputStream();
    OutputStream output = response.getOutputStream();

    ZOutputStream zOutput = null; // Wrap the streams for compression

    // Wrap the streams so for logical types
    DataInputStream dataInput = null;
    DataOutputStream dataOutput = null;

    // Set the MIME type so clients don't misinterpret
    response.setContentType("application/octet-stream");

    try {
        zOutput = new ZOutputStream(output, JZlib.Z_BEST_COMPRESSION);
        dataInput = new DataInputStream(input);
        dataOutput = new DataOutputStream(zOutput);

        if (rawUploadLog.isInfoEnabled()) {
            byte[] rawPayload = IOUtils.toByteArray(dataInput);
            String hexEncodedPayload = Hex.encodeHexString(rawPayload);
            rawUploadLog.info(hexEncodedPayload);
            // Replace the original input stream with one using read payload
            dataInput.close();
            dataInput = new DataInputStream(new ByteArrayInputStream(rawPayload));
        }

        String name = dataInput.readUTF();
        String password = dataInput.readUTF();
        String serializer = dataInput.readUTF();
        String locale = dataInput.readUTF();

        byte action = dataInput.readByte();

        // TODO Authentication of usename and password. Possible M6
        // enhancement
        log.info("uploading: name=" + name + ", password=" + password + ", serializer=" + serializer
                + ", locale=" + locale + ", action=" + action);

        EpihandyXformSerializer serObj = new EpihandyXformSerializer();
        serObj.addDeserializationListener(studyProcessor);

        try {
            Map<Integer, String> formVersionMap = formService.getXForms();
            serObj.deserializeStudiesWithEvents(dataInput, formVersionMap);
        } catch (FormNotFoundException fne) {
            String msg = "failed to deserialize forms: ";
            log.error(msg + fne.getMessage());
            dataOutput.writeByte(ResponseHeader.STATUS_FORMS_STALE);
            response.setStatus(HttpServletResponse.SC_OK);
            return;
        } catch (Exception e) {
            String msg = "failed to deserialize forms";
            log.error(msg, e);
            dataOutput.writeByte(ResponseHeader.STATUS_ERROR);
            response.setStatus(HttpServletResponse.SC_OK);
            return;
        }

        String[][] studyForms = studyProcessor.getConvertedStudies();
        int numForms = studyProcessor.getNumForms();

        log.debug("upload contains: studies=" + studyForms.length + ", forms=" + numForms);

        // Starting processing here, only process until we run out of time
        int processedForms = 0;
        int faultyForms = 0;
        if (studyForms != null && numForms > 0) {
            formprocessing: for (int i = 0; i < studyForms.length; i++) {
                for (int j = 0; j < studyForms[i].length; j++, processedForms++) {

                    if (maxProcessingTime > 0 && System.currentTimeMillis() - startTime > maxProcessingTime)
                        break formprocessing;

                    try {
                        studyForms[i][j] = impService.processXForm(studyForms[i][j]);
                    } catch (Exception ex) {
                        log.error("processing form failed", ex);
                        studyForms[i][j] = ex.getMessage();
                    }
                    if (!impService.getFormProcessSuccess().equalsIgnoreCase(studyForms[i][j])) {
                        faultyForms++;
                    }
                }
            }
        }

        // Write out usual upload response
        dataOutput.writeByte(ResponseHeader.STATUS_SUCCESS);

        dataOutput.writeInt(processedForms);
        dataOutput.writeInt(faultyForms);

        for (int s = 0; s < studyForms.length; s++) {
            for (int f = 0; f < studyForms[s].length; f++) {
                if (!impService.getFormProcessSuccess().equalsIgnoreCase(studyForms[s][f])) {
                    dataOutput.writeByte((byte) s);
                    dataOutput.writeShort((short) f);
                    dataOutput.writeUTF(studyForms[s][f]);
                }
            }
        }

        response.setStatus(HttpServletResponse.SC_OK);
    } catch (Exception e) {
        log.error("failure during upload", e);
    } finally {
        if (dataOutput != null)
            dataOutput.flush();
        if (zOutput != null)
            zOutput.finish();
        response.flushBuffer();
    }
}

From source file:edu.mit.viral.shen.DroidFish.java

private void sendDataLocal(final int sq) {
    new Thread(new Runnable() {
        @Override// w  w  w  .ja  v a2 s  .  c o m
        public void run() {
            Socket socket = null;
            DataOutputStream dataOutputStream = null;
            DataInputStream dataInputStream = null;
            try {
                socket = new Socket(Const.IP_ADD_LOCAL, 8890);
                dataOutputStream = new DataOutputStream(socket.getOutputStream());
                String sq_string = Integer.toString(sq);
                dataOutputStream.writeUTF(sq_string);

            }

            catch (UnknownHostException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } finally {
                if (socket != null) {
                    try {
                        socket.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }).start();
}

From source file:com.cognizant.trumobi.PersonaLauncher.java

private static void writeConfiguration(Context context, LocaleConfiguration configuration) {
    DataOutputStream out = null;
    try {/*from w ww . j a v a2  s  .  com*/
        out = new DataOutputStream(context.openFileOutput(PREFERENCES, MODE_PRIVATE));
        out.writeUTF(configuration.locale);
        out.writeInt(configuration.mcc);
        out.writeInt(configuration.mnc);
        out.flush();
    } catch (FileNotFoundException e) {
        // Ignore
    } catch (IOException e) {
        // noinspection ResultOfMethodCallIgnored
        context.getFileStreamPath(PREFERENCES).delete();
    } finally {
        if (out != null) {
            try {
                out.close();
            } catch (IOException e) {
                // Ignore
            }
        }
    }
}

From source file:edu.mit.viral.shen.DroidFish.java

private void sendComment(final String comment) {
    new Thread(new Runnable() {
        @Override//from  www . j a v a 2s  .c o m
        public void run() {
            Socket socket = null;
            DataOutputStream dataOutputStream = null;
            DataInputStream dataInputStream = null;
            try {
                // String[] words = longfen.split(" ");
                // String fen=words[0];               
                socket = new Socket(Const.IP_ADD_LOCAL, 8890);
                dataOutputStream = new DataOutputStream(socket.getOutputStream());
                dataOutputStream.writeUTF(comment);

            }

            catch (UnknownHostException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } finally {
                if (socket != null) {
                    try {
                        socket.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }).start();
}

From source file:org.nd4j.linalg.factory.Nd4j.java

/**
 * Write an ndarray to the specified outputs tream
 *
 * @param arr              the array to write
 * @param dataOutputStream the data output stream to write to
 * @throws IOException/*from w w  w .  java  2s. c  om*/
 */
public static void writeComplex(IComplexNDArray arr, DataOutputStream dataOutputStream) throws IOException {
    dataOutputStream.writeInt(arr.shape().length);
    for (int i = 0; i < arr.shape().length; i++)
        dataOutputStream.writeInt(arr.size(i));
    for (int i = 0; i < arr.stride().length; i++)
        dataOutputStream.writeInt(arr.stride()[i]);
    dataOutputStream.writeUTF(dataType() == DataBuffer.Type.FLOAT ? "float" : "double");

    dataOutputStream.writeUTF("complex");

    if (dataType() == DataBuffer.Type.DOUBLE)
        ArrayUtil.write(arr.data().asDouble(), dataOutputStream);
    else
        ArrayUtil.write(arr.data().asFloat(), dataOutputStream);

}