Header
objects.
This class is mostly intended for service providers. MimeMessage and MimeBody use this class for holding their headers.
A note on RFC822 and MIME headers
RFC822 and MIME header fields must contain only
US-ASCII characters. If a header contains non US-ASCII characters,
it must be encoded as per the rules in RFC 2047. The MimeUtility
class provided in this package can be used to to achieve this.
Callers of the setHeader
, addHeader
, and
addHeaderLine
methods are responsible for enforcing
the MIME requirements for the specified headers. In addition, these
header fields must be folded (wrapped) before being sent if they
exceed the line length limitation for the transport (1000 bytes for
SMTP). Received headers may have been folded. The application is
responsible for folding and unfolding headers as appropriate.
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Field Summary
Fields -
Constructor Summary
ConstructorsConstructorDescriptionRead and parse the given RFC822 message stream till the blank line separating the header from the body. -
Method Summary
Modifier and TypeMethodDescription(package private) void
addHeaderLine
(String line) Add an RFC822 header line to the header store.(package private) FinalArrayList
<? extends Header> Return all the headers as an Enumeration ofHeader
objects.Return all the values for the specified header.
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Field Details
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headers
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Constructor Details
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InternetHeaders
InternetHeaders(MIMEParser.LineInputStream lis) Read and parse the given RFC822 message stream till the blank line separating the header from the body. Store the header lines inside this InternetHeaders object.Note that the header lines are added into this InternetHeaders object, so any existing headers in this object will not be affected.
- Parameters:
lis
- RFC822 input stream
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Method Details
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getHeader
Return all the values for the specified header. The values are String objects. Returnsnull
if no headers with the specified name exist.- Parameters:
name
- header name- Returns:
- array of header values, or null if none
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getAllHeaders
FinalArrayList<? extends Header> getAllHeaders()Return all the headers as an Enumeration ofHeader
objects.- Returns:
- Header objects
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addHeaderLine
Add an RFC822 header line to the header store. If the line starts with a space or tab (a continuation line), add it to the last header line in the list.Note that RFC822 headers can only contain US-ASCII characters
- Parameters:
line
- raw RFC822 header line
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