MimePartDataSource (Java EE 5 SDK) - Java Platform, Enterprise Edition v5.0 API Specifications

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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
extends Object
implements DataSource, MessageAware

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

Author:: John Mani
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 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

Returns:: an OutputStream
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

Returns:: the MIME Type

getName

public String getName()

DataSource method to return a name.

This implementation just returns an empty string.

Specified by:: getName in interface DataSource

Returns:: the name of the object.

getMessageContext

public MessageContext getMessageContext()

Return the MessageContext for the current part.

Specified by:: getMessageContext in interface MessageAware

Since:: JavaMail 1.1