Method writePayload

basex-core/src/main/java/org/basex/util/http/Client.java:280–335

Writes the payload of a body or part in the output stream of the connection. @param payload body/part payload @param atts payload attributes @param out output stream @throws IOException I/O exception

(final ItemList payload, final Map<String, String> atts,
      final OutputStream out)

   * @throws IOException I/O exception
   */
  private static void writePayload(final ItemList payload, final Map<String, String> atts,
      final OutputStream out) throws IOException {

    // choose serialization parameters
    final SerializerOptions sopts = new SerializerOptions();
    sopts.set(SerializerOptions.NEWLINE, Newline.NL);

    String method = null, type = null;
    for(final Entry<String, String> entry : atts.entrySet()) {
      final String key = entry.getKey(), value = entry.getValue();

      // send specified source
      if(key.equals(SRC)) {
        out.write(IO.get(value).read());
        return;
      }

      // serialization parameters
      if(key.equals(SerializerOptions.METHOD.name())) {
        method = value.equals(BINARY) ? SerialMethod.BASEX.toString() : value;
      } else {
        sopts.assign(key, value);
        if(key.equals(SerializerOptions.MEDIA_TYPE.name())) type = value;
      }
    }

    // no method specified (yet): choose method based on media type
    if(method == null && type != null) {
      final MediaType mt = new MediaType(type);
      if(mt.is(MediaType.APPLICATION_HTML_XML)) {
        method = SerialMethod.XHTML.toString();
      } else if(mt.is(MediaType.TEXT_HTML)) {
        method = SerialMethod.HTML.toString();
      } else if(mt.isXml()) {
        method = SerialMethod.XML.toString();
      } else if(mt.isJSON()) {
        method = SerialMethod.JSON.toString();
      } else if(mt.isCSV()) {
        method = SerialMethod.CSV.toString();
      } else if(mt.isText()) {
        method = SerialMethod.TEXT.toString();
      }
    }
    // no method, EXPath binary method: use default serialization, atomize nodes
    final boolean atom = method == null || method.equals(BINARY);
    if(atom) method = SerialMethod.BASEX.toString();
    sopts.assign(SerializerOptions.METHOD.name(), method);

    // serialize payload
    try(Serializer ser = Serializer.get(out, sopts)) {
      for(final Item item : payload) {
        ser.serialize(atom && item instanceof final XNode xnode ?
          xnode.atomItem(null, null) : item);
      }
    }
  }
}