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## javax.mail.internet
Class MimePartDataSource

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

All Implemented Interfaces:
  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.

See Also:
  `MimePart`, `DataSource`

Field Summary
`protected MimePart` | `part` The MimePart that provides the data for this DataSource.

Constructor Summary
`MimePartDataSource(MimePart part)` Constructor, that constructs a DataSource from a MimePart.

Method Summary
`String` | `getContentType()` Returns the content-type of this DataSource.
`InputStream` | `getInputStream()` Returns an input stream from this MimePart.
`MessageContext` | `getMessageContext()` Return the `MessageContext` for the current part.
`String` | `getName()` DataSource method to return a name.
`OutputStream` | `getOutputStream()` DataSource method to return an output stream.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### part

    protected MimePart part

  The MimePart that provides the data for this DataSource.

  Since:
    JavaMail 1.4

Constructor Detail

### MimePartDataSource

    public MimePartDataSource(MimePart part)

  Constructor, that constructs a DataSource from a MimePart.

Method Detail

### 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.

  Specified by:
    `getInputStream` in interface `DataSource`
  Returns:
    decoded input stream
  Throws:
    `IOException`
  See Also:
    `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.

  Specified by:
    `getOutputStream` in interface `DataSource`
  Throws:
    `IOException`

### getContentType

    public String getContentType()

  Returns the content-type of this DataSource.

  This implementation just invokes the `getContentType` method on the MimePart.

  Specified by:
    `getContentType` in interface `DataSource`

### getName

    public String getName()

  DataSource method to return a name.

  This implementation just returns an empty string.

  Specified by:
    `getName` in interface `DataSource`

### getMessageContext

    public MessageContext getMessageContext()

  Return the `MessageContext` for the current part.

  Specified by:
    `getMessageContext` in interface `MessageAware`
  Since:
    JavaMail 1.1

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