Examples of java.io.DataOutput.writeUTF()

java.io.DataOutput.writeUTF()
Writes two bytes of length information to the output stream, followed by the modified UTF-8 representation of every character in the string s. If s is null, a NullPointerException is thrown. Each character in the string s is converted to a group of one, two, or three bytes, depending on the value of the character.
If a character c is in the range \u0001 through \u007f, it is represented by one byte:
```
(byte)c 
```
If a character c is \u0000 or is in the range \u0080 through \u07ff, then it is represented by two bytes, to be written in the order shown:
```
 (byte)(0xc0 | (0x1f & (c >> 6))) (byte)(0x80 | (0x3f & c)) 
```
If a character c is in the range \u0800 through uffff, then it is represented by three bytes, to be written in the order shown:
```
 (byte)(0xe0 | (0x0f & (c >> 12))) (byte)(0x80 | (0x3f & (c >>  6))) (byte)(0x80 | (0x3f & c)) 
```
First, the total number of bytes needed to represent all the characters of s is calculated. If this number is larger than 65535, then a UTFDataFormatException is thrown. Otherwise, this length is written to the output stream in exactly the manner of the writeShort method; after this, the one-, two-, or three-byte representation of each character in the string s is written.
The bytes written by this method may be read by the readUTF method of interface DataInput , which will then return a String equal to s. @param s the string value to be written. @throws IOException if an I/O error occurs.

                int aUriCode = db.lookup(atts.getURI(i));
                String aValue = atts.getValue(i);
                tempABVS.reset();
                DataOutput tempOut = tempABVS.getDataOutput();
                tempOut.write(ValueTag.XS_UNTYPED_ATOMIC_TAG);
                tempOut.writeUTF(aValue);
                enb.startAttribute(anb);
                anb.setName(aUriCode, aLocalNameCode, aPrefixCode);
                if (attachTypes) {
                    int typeUriCode = db.lookup(XQueryConstants.XS_NSURI);
                    int typeLocalNameCode = db.lookup(BuiltinTypeQNames.UNTYPED_ATOMIC_STR);

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                int aUriCode = db.lookup(atts.getURI(i));
                String aValue = atts.getValue(i);
                tempABVS.reset();
                DataOutput tempOut = tempABVS.getDataOutput();
                tempOut.write(ValueTag.XS_UNTYPED_ATOMIC_TAG);
                tempOut.writeUTF(aValue);
                enb.startAttribute(anb);
                anb.setName(aUriCode, aLocalNameCode, aPrefixCode);
                if (attachTypes) {
                    int typeUriCode = db.lookup(XQueryConstants.XS_NSURI);
                    int typeLocalNameCode = db.lookup(BuiltinTypeQNames.UNTYPED_ATOMIC_STR);

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                int aUriCode = db.lookup(atts.getURI(i));
                String aValue = atts.getValue(i);
                tempABVS.reset();
                DataOutput tempOut = tempABVS.getDataOutput();
                tempOut.write(ValueTag.XS_UNTYPED_ATOMIC_TAG);
                tempOut.writeUTF(aValue);
                enb.startAttribute(anb);
                anb.setName(aUriCode, aLocalNameCode, aPrefixCode);
                if (attachTypes) {
                    int typeUriCode = db.lookup(XQueryConstants.XS_NSURI);
                    int typeLocalNameCode = db.lookup(BuiltinTypeQNames.UNTYPED_ATOMIC_STR);

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          .getStatus().ordinal());


      if (context.getStatus() != OutgoingMessageContext.Status.Success) {
        if (context.getErrorDesc() != null
            && context.getErrorDesc().length() != 0) {
          payloadStream.writeUTF(context.getErrorDesc());
        }
      } else {
        context.getOutput().serialize(payloadStream, new BinaryProtocol());
      }

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     */
    public static byte[] toUtf(String s) throws UTFDataFormatException {
  try {
      ByteArrayOutputStream bout = new ByteArrayOutputStream(s.length());
      DataOutput dout = new DataOutputStream(bout);
      dout.writeUTF(s);
      return bout.toByteArray();
  } catch (UTFDataFormatException e) {
      throw e;
  } catch (IOException e) {
      throw new AssertionError(e);

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    {
  try {
      DataOutput dout = new DataOutputStream(out);


      // write LUS host
      dout.writeUTF(response.getHost());


      // write LUS port
      dout.writeShort(intToUshort(response.getPort()));


      // write LUS member groups

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      // write LUS member groups
      String[] groups = response.getGroups();
      dout.writeInt(groups.length);
      for (int i = 0; i < groups.length; i++) {
    dout.writeUTF(groups[i]);
      }


      // write LUS proxy
      new ObjectOutputStream(out).writeObject(
    new MarshalledInstance(response.getRegistrar(), context));

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            }
            data.writeByte(COMMIT_AUTHOR_PREFIX);
            FormatCommonV1.writePerson(commit.getAuthor(), data);
            data.writeByte(COMMIT_COMMITTER_PREFIX);
            FormatCommonV1.writePerson(commit.getCommitter(), data);
            data.writeUTF(commit.getMessage());
        }
    }


    private static class FeatureSerializer implements Serializer<RevFeature> {

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