MimePartDataSource (Java EE 5 SDK)

javax.mail.internet Class MimePartDataSource

java.lang.Object
  javax.mail.internet.MimePartDataSource

所有已实现的接口:

DataSource, MessageAware

public class MimePartDataSource

extends Object

implements DataSource, MessageAware

A utility class that implements a DataSource out of a MimePart. This class is primarily meant for service providers.

作者:

John Mani

另请参见:

MimePart, DataSource

part

protected MimePart part

The MimePart that provides the data for this DataSource.

从以下版本开始:

JavaMail 1.4

MimePartDataSource

public MimePartDataSource(MimePart part)

Constructor, that constructs a DataSource from a MimePart.

getInputStream

public InputStream getInputStream()
                           throws IOException

Returns an input stream from this MimePart.

This method applies the appropriate transfer-decoding, based on the Content-Transfer-Encoding attribute of this MimePart. Thus the returned input stream is a decoded stream of bytes.

This implementation obtains the raw content from the Part using the getContentStream() method and decodes it using the MimeUtility.decode() method.

规范说明:

getInputStream in interface DataSource

返回:

decoded input stream

抛出异常:

IOException

另请参见:

MimeMessage.getContentStream(), MimeBodyPart.getContentStream(), MimeUtility.decode(java.io.InputStream, java.lang.String)

getOutputStream

public OutputStream getOutputStream()
                             throws IOException

DataSource method to return an output stream.

This implementation throws the UnknownServiceException.

规范说明:

getOutputStream in interface DataSource

返回:

an OutputStream

抛出异常:

IOException

getContentType

public String getContentType()

Returns the content-type of this DataSource.

This implementation just invokes the getContentType method on the MimePart.

规范说明:

getContentType in interface DataSource

返回:

the MIME Type

getName

public String getName()

DataSource method to return a name.

This implementation just returns an empty string.

规范说明:

getName in interface DataSource

返回:

the name of the object.

getMessageContext

public MessageContext getMessageContext()

Return the MessageContext for the current part.

规范说明:

getMessageContext in interface MessageAware

从以下版本开始:

JavaMail 1.1

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