org.apache.axiom.attachments

Class PartImpl

java.lang.Object

org.apache.axiom.attachments.PartImpl

All Implemented Interfaces:

Part

final class PartImpl
extends java.lang.Object
implements Part

Actual implementation of the Part interface.

Field Summary

Fields

Modifier and Type	Field and Description
private PartContent	content The content of this part.
private javax.activation.DataHandler	dataHandler
private DetachableInputStream	detachableInputStream
private java.util.List	headers
private boolean	isRootPart
private static org.apache.commons.logging.Log	log
private MIMEMessage	message
private org.apache.james.mime4j.stream.MimeTokenStream	parser The MIME parser from which the content of this part is read.
private int	state
private static int	STATE_BUFFERED The part has been read into a memory or file based buffer.
private static int	STATE_DISCARDED The part content has been discarded and can no longer be read.
private static int	STATE_STREAMING The part content is being streamed, i.a.
private static int	STATE_UNREAD The part has not been read yet.

Constructor Summary

Constructors

Constructor and Description
PartImpl(MIMEMessage message, boolean isRootPart, java.util.List headers, org.apache.james.mime4j.stream.MimeTokenStream parser) The actual parts are constructed with the PartFactory.

Method Summary

Modifier and Type	Method and Description
private static void	checkParserState(org.apache.james.mime4j.stream.EntityState state, org.apache.james.mime4j.stream.EntityState expected)
(package private) void	fetch() Make sure that the MIME part has been fully read from the parser.
private PartContent	getContent()
java.lang.String	getContentID()
java.lang.String	getContentType()
javax.activation.DataHandler	getDataHandler()
(package private) javax.activation.DataSource	getDataSource()
(package private) java.lang.String	getDataSourceContentType() Get the content type that should be reported by DataSource instances created for this part.
java.lang.String	getHeader(java.lang.String name) Get the value of a specific header
(package private) java.io.InputStream	getInputStream(boolean preserve)
long	getSize()
private void	moveToNextPart()
(package private) void	releaseContent()
(package private) void	writeTo(java.io.OutputStream out)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

STATE_UNREAD

private static final int STATE_UNREAD

The part has not been read yet. In this case the parser is in state EntityState.T_BODY.

See Also:

Constant Field Values

STATE_BUFFERED

private static final int STATE_BUFFERED

The part has been read into a memory or file based buffer.

See Also:

Constant Field Values

STATE_STREAMING

private static final int STATE_STREAMING

The part content is being streamed, i.a. the application code consumes the part content without buffering.

See Also:

Constant Field Values

STATE_DISCARDED

private static final int STATE_DISCARDED

The part content has been discarded and can no longer be read. This state is reached either when the content has been streamed or when it is discarded explicitly after being buffered.

See Also:

Constant Field Values

log

private static final org.apache.commons.logging.Log log

message

private final MIMEMessage message

isRootPart

private final boolean isRootPart

headers

private java.util.List headers

state

private int state

parser

private org.apache.james.mime4j.stream.MimeTokenStream parser

The MIME parser from which the content of this part is read. This is only set if the state is STATE_UNREAD or STATE_STREAMING.

content

private PartContent content

The content of this part. This is only set if the state is STATE_BUFFERED.

dataHandler

private final javax.activation.DataHandler dataHandler

detachableInputStream

private DetachableInputStream detachableInputStream

Constructor Detail

PartImpl

PartImpl(MIMEMessage message,
         boolean isRootPart,
         java.util.List headers,
         org.apache.james.mime4j.stream.MimeTokenStream parser)

The actual parts are constructed with the PartFactory.

Parameters:

headers -

See Also:

PartContentFactory

Method Detail

getHeader

public java.lang.String getHeader(java.lang.String name)

Description copied from interface: Part

Get the value of a specific header

Specified by:

getHeader in interface Part

Returns:

value or null

getContentID

public java.lang.String getContentID()

Specified by:

getContentID in interface Part

Returns:

content id of the part

getContentType

public java.lang.String getContentType()

Specified by:

getContentType in interface Part

Returns:

content type of the part

getDataSourceContentType

java.lang.String getDataSourceContentType()

Get the content type that should be reported by DataSource instances created for this part.

Returns:

the content type

getDataHandler

public javax.activation.DataHandler getDataHandler()

Specified by:

getDataHandler in interface Part

Returns:

DataHandler representing this part

getSize

public long getSize()

Specified by:

getSize in interface Part

Returns:

size

getContent

private PartContent getContent()

checkParserState

private static void checkParserState(org.apache.james.mime4j.stream.EntityState state,
                                     org.apache.james.mime4j.stream.EntityState expected)
                              throws java.lang.IllegalStateException

Throws:

java.lang.IllegalStateException

fetch

void fetch()

Make sure that the MIME part has been fully read from the parser. If the part has not been read yet, then it will be buffered. This method prepares the parser for reading the next part in the stream.

moveToNextPart

private void moveToNextPart()

getInputStream

java.io.InputStream getInputStream(boolean preserve)
                            throws java.io.IOException

Throws:

java.io.IOException

getDataSource

javax.activation.DataSource getDataSource()

writeTo

void writeTo(java.io.OutputStream out)
      throws java.io.IOException

Throws:

java.io.IOException

releaseContent

void releaseContent()
             throws java.io.IOException

Throws:

java.io.IOException