本文整理了Java中org.apache.james.mime4j.stream.Field类的一些代码示例，展示了Field类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Field类的具体详情如下：
包路径：org.apache.james.mime4j.stream.Field
类名称：Field

Field介绍

[英]This interface represents an abstract MIME field. A MIME field must have a non null name and a content body (unfolded but unparsed and possibly encoded). Optionally implementing classes may also retain the original (raw) representation in a form of ByteSequence.

Specific implementations of this interface may also use a richer model to represent the field if its body can be parsed into a set of constituent elements.
[中]此接口表示一个抽象MIME字段。MIME字段必须具有非null名称和内容正文（展开但未分析，可能已编码）。可选地，实现类还可以以字节顺序的形式保留原始（原始）表示。
如果字段的主体可以解析为一组组成元素，则此接口的特定实现也可以使用更丰富的模型来表示字段。

代码示例

代码示例来源：origin: k9mail/k-9

@Override
public void field(Field parsedField) throws MimeException {
  String name = parsedField.getName();
  String raw = parsedField.getRaw().toString();
  Part part = (Part) stack.peek();
  part.addRawHeader(name, raw);
  String fieldImmediateValue = MimeUtility.getHeaderParameter(parsedField.getBody(), null);
  if ("Content-Type".equalsIgnoreCase(name) && MimeUtility.isMessage(fieldImmediateValue)) {
    isMessagePart = true;
  }
  if ("Content-Disposition".equalsIgnoreCase(name) && "attachment".equalsIgnoreCase(fieldImmediateValue)) {
    isContentDispositionAttachment = true;
  }
}

代码示例来源：origin: k9mail/k-9

@Override
public void field(Field rawField) throws MimeException {
  String name = rawField.getName();
  String raw = rawField.getRaw().toString();
  part.addRawHeader(name, raw);
}

代码示例来源：origin: apache/tika

String fieldname = field.getName();
  } else {
    metadata.add(Metadata.MESSAGE_RAW_HEADER_PREFIX + parsedField.getName(),
        field.getBody());
  Date date = dateField.getDate();
  if (date == null) {
    date = tryOtherDateFormats(field.getBody());
      field.getBody());

代码示例来源：origin: org.apache.james/apache-mime4j-dom

/**
 * Gets the unfolded, unparsed and possibly encoded (see RFC 2047) field
 * body string.
 *
 * @return the unfolded unparsed field body string.
 */
public String getBody() {
  return rawField.getBody();
}

代码示例来源：origin: org.apache.james/apache-mime4j-dom

/**
 * Gets the name of the field (<code>Subject</code>,
 * <code>From</code>, etc).
 *
 * @return the field name.
 */
public String getName() {
  return rawField.getName();
}

代码示例来源：origin: apache/tika

private String stripOutFieldPrefix(Field field, String fieldname) {
  String temp = field.getRaw().toString();
  int loc = fieldname.length();
  while (temp.charAt(loc) == ' ') {
    loc++;
  }
  return temp.substring(loc);
}

代码示例来源：origin: org.apache.james/apache-mime4j-dom

protected RawField getRawField() {
  if (rawField instanceof RawField) {
    return ((RawField) rawField);
  } else {
    return new RawField(rawField.getName(), rawField.getBody());
  }
}

代码示例来源：origin: org.apache.james/apache-mime4j-dom

/**
 * Returns the value of the <i>Message-ID</i> header field of this message
 * or <code>null</code> if it is not present.
 *
 * @return the identifier of this message.
 */
public String getMessageId() {
  Field field = obtainField(FieldName.MESSAGE_ID);
  return field != null ? field.getBody() : null;
}

代码示例来源：origin: org.apache.james/apache-mime4j-dom

/**
 * Adds a field to the end of the list of fields.
 *
 * @param field the field to add.
 */
public void addField(Field field) {
  List<Field> values = fieldMap.get(field.getName().toLowerCase(Locale.US));
  if (values == null) {
    values = new LinkedList<Field>();
    fieldMap.put(field.getName().toLowerCase(Locale.US), values);
  }
  values.add(field);
  fields.add(field);
}

代码示例来源：origin: k9mail/k-9

@Override
  public void field(Field parsedField) throws MimeException {
    expect(Part.class);
    String name = parsedField.getName();
    String raw = parsedField.getRaw().toString();
    ((Part) stack.peek()).addRawHeader(name, raw);
  }
}

代码示例来源：origin: org.apache.james/apache-mime4j-dom

/**
 * Gets original (raw) representation of the field, if available,
 * <code>null</code> otherwise.
 */
public ByteSequence getRaw() {
  return rawField.getRaw();
}

代码示例来源：origin: org.apache.james/apache-james-mailbox-elasticsearch

public Builder add(Field field) {
  Preconditions.checkNotNull(field);
  String headerName = field.getName().toLowerCase(Locale.US);
  String sanitizedValue = MimeUtil.unscrambleHeaderValue(field.getBody());
  if (!headerName.contains(".")) {
    headers.put(headerName, sanitizedValue);
  }
  handleSpecificHeader(headerName, sanitizedValue);
  return this;
}

代码示例来源：origin: org.apache.james/apache-mime4j-dom

/**
 * Write the specified <code>Field</code> to the specified
 * <code>OutputStream</code>.
 *
 * @param field
 *            the <code>Field</code> to write.
 * @param out
 *            the OutputStream to write to.
 * @throws IOException
 *             if an I/O error occurs.
 */
public void writeField(Field field, OutputStream out) throws IOException {
  ByteSequence raw = field.getRaw();
  if (raw == null) {
    StringBuilder buf = new StringBuilder();
    buf.append(field.getName());
    buf.append(": ");
    String body = field.getBody();
    if (body != null) {
      buf.append(body);
    }
    raw = ContentUtil.encode(MimeUtil.fold(buf.toString(), 0));
  }
  writeBytes(raw, out);
  out.write(CRLF);
}

代码示例来源：origin: org.apache.james/apache-mime4j-dom

/**
 * Returns the value of the <i>Message-ID</i> header field of this message
 * or <code>null</code> if it is not present.
 *
 * @return the identifier of this message.
 */
public String getMessageId() {
  Field field = obtainField(FieldName.MESSAGE_ID);
  if (field == null)
    return null;
  return field.getBody();
}

代码示例来源：origin: org.apache.james/apache-mime4j-dom

/**
 * Adds a field to the end of the list of fields.
 *
 * @param field the field to add.
 */
public AbstractEntityBuilder addField(Field field) {
  List<Field> values = fieldMap.get(field.getName().toLowerCase(Locale.US));
  if (values == null) {
    values = new LinkedList<Field>();
    fieldMap.put(field.getName().toLowerCase(Locale.US), values);
  }
  values.add(field);
  fields.add(field);
  return this;
}

代码示例来源：origin: com.github.lafa.tikaNoExternal/tika-parsers

private String stripOutFieldPrefix(Field field, String fieldname) {
  String temp = field.getRaw().toString();
  int loc = fieldname.length();
  while (temp.charAt(loc) == ' ') {
    loc++;
  }
  return temp.substring(loc);
}

代码示例来源：origin: org.jwall/org.jwall.web.audit

@Override
public void field(Field rawField) throws MimeException {
  log.debug("field( {} )", rawField);
  currentSection.append(rawField.getName() + ": "
      + rawField.getBody());
  currentSection.append("\r\n");
  if ("Content-Disposition".equals(rawField.getName())) {
    String line = rawField.getBody();
    int idx = line.indexOf("name=\"");
    if (idx > 0) {
      idx += "name=\"".length();
      int end = line.indexOf("\"", idx);
      if (end > 0) {
        name = line.substring(idx, end);
        log.debug("Diving into section '{}'", name);
      }
    }
  }
  if ("Content-Type".equals(rawField.getName())) {
    int idx = rawField.getBody().indexOf("boundary=");
    if (idx > 0) {
      boundary = rawField.getBody().substring(
          idx + "boundary=".length());
      log.debug("Boundary is '{}'", boundary);
    }
  }
}

代码示例来源：origin: org.apache.james/apache-james-mailbox-store

@Override
  public void field(Field field) throws MimeException {
    String fieldValue;
    if (field instanceof RawField) {
      // check if we can access the body in the raw form so no unfolding was done under the hood
      ByteSequence raw = field.getRaw();
      int len = raw.length();
      int off = ((RawField) field).getDelimiterIdx() + 1;
      if (len > off + 1 && (raw.byteAt(off) & 0xff) == 0x20) {
        off++;
      }
    
      fieldValue = ContentUtil.decode(raw, off, len - off);
    } else {
      fieldValue = field.getBody();
    }
    if (fieldValue.endsWith("\r\f")) {
      fieldValue = fieldValue.substring(0,fieldValue.length() - 2);
    }
    if (fieldValue.startsWith(" ")) {
      fieldValue = fieldValue.substring(1);
    }
    
    final ResultHeader resultHeader = new ResultHeader(field.getName(), fieldValue);
    results.add(resultHeader);
  }
});

代码示例来源：origin: org.apache.james/apache-mime4j-james-utils

private boolean checkHeader(final CharBuffer buffer, MimeTokenStream parser) throws IOException {
  final String value = parser.getField().getBody();
  final StringReader reader = new StringReader(value);
  return isFoundIn(reader, buffer);
}

代码示例来源：origin: org.apache.james/apache-mime4j-dom

/**
 * Removes all <code>Field</code>s having the specified field name.
 *
 * @param name
 *            the field name (e.g. From, Subject).
 */
public AbstractEntityBuilder removeFields(String name) {
  final String lowerCaseName = name.toLowerCase(Locale.US);
  List<Field> removed = fieldMap.remove(lowerCaseName);
  if (removed == null || removed.isEmpty()) {
    return this;
  }
  for (Iterator<Field> iterator = fields.iterator(); iterator.hasNext();) {
    Field field = iterator.next();
    if (field.getName().equalsIgnoreCase(name)) {
      iterator.remove();
    }
  }
  return this;
}