org.apache.commons.httpclient.methods.multipart
Class Part

java.lang.Object
  |
  +--org.apache.commons.httpclient.methods.multipart.Part

Direct Known Subclasses:

FilePart, StringPart

public abstract class Part

extends Object

Abstract class for one Part of a multipart post object.

Since:

2.0

Author:

Matthew Albright, Jeff Dever, Adrian Sutton, Mike Bowler, Oleg Kalnichevski

Field Summary

protected static String	BOUNDARY The boundary
protected static byte[]	BOUNDARY_BYTES The boundary as a byte array
protected static String	CHARSET Content charset
protected static byte[]	CHARSET_BYTES Content charset as a byte array
protected static String	CONTENT_DISPOSITION Content dispostion characters
protected static byte[]	CONTENT_DISPOSITION_BYTES Content dispostion as a byte array
protected static String	CONTENT_TRANSFER_ENCODING Content type header
protected static byte[]	CONTENT_TRANSFER_ENCODING_BYTES Content type header as a byte array
protected static String	CONTENT_TYPE Content type header
protected static byte[]	CONTENT_TYPE_BYTES Content type header as a byte array
protected static String	CRLF Carriage return/linefeed
protected static byte[]	CRLF_BYTES Carriage return/linefeed as a byte array
protected static String	EXTRA Extra characters
protected static byte[]	EXTRA_BYTES Extra characters as a byte array
protected static String	QUOTE Content dispostion characters
protected static byte[]	QUOTE_BYTES Content dispostion as a byte array

Constructor Summary

Part()

Method Summary

static String	getBoundary() Return the boundary string.
abstract String	getCharSet() Return the character encoding of this part.
abstract String	getContentType() Return the content type of this part.
static long	getLengthOfParts(Part[] parts) Return the total sum of all parts and that of the last boundary
abstract String	getName() Return the name of this part.
abstract String	getTransferEncoding() Return the transfer encoding of this part.
long	length() Return the full length of all the data.
protected abstract long	lengthOfData() Return the length of the main content
void	send(OutputStream out) Write all the data to the output stream.
protected void	sendContentTypeHeader(OutputStream out) Write the content type header to the specified output stream
protected abstract void	sendData(OutputStream out) Write the data to the specified output stream
protected void	sendDispositionHeader(OutputStream out) Write the content disposition header to the specified output stream
protected void	sendEnd(OutputStream out) Write the end data to the output stream.
protected void	sendEndOfHeader(OutputStream out) Write the end of the header to the output stream
static void	sendParts(OutputStream out, Part[] parts) Write all parts and the last boundary to the specified output stream
protected void	sendStart(OutputStream out) Write the start to the specified output stream
protected void	sendTransferEncodingHeader(OutputStream out) Write the content transfer encoding header to the specified output stream
String	toString() Return a string representation of this object.

Methods inherited from class java.lang.Object

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

Field Detail

BOUNDARY

protected static final String BOUNDARY

The boundary

BOUNDARY_BYTES

protected static final byte[] BOUNDARY_BYTES

The boundary as a byte array

CRLF

protected static final String CRLF

Carriage return/linefeed

CRLF_BYTES

protected static final byte[] CRLF_BYTES

Carriage return/linefeed as a byte array

QUOTE

protected static final String QUOTE

Content dispostion characters

QUOTE_BYTES

protected static final byte[] QUOTE_BYTES

Content dispostion as a byte array

EXTRA

protected static final String EXTRA

Extra characters

EXTRA_BYTES

protected static final byte[] EXTRA_BYTES

Extra characters as a byte array

CONTENT_DISPOSITION

protected static final String CONTENT_DISPOSITION

Content dispostion characters

CONTENT_DISPOSITION_BYTES

protected static final byte[] CONTENT_DISPOSITION_BYTES

Content dispostion as a byte array

CONTENT_TYPE

protected static final String CONTENT_TYPE

Content type header

CONTENT_TYPE_BYTES

protected static final byte[] CONTENT_TYPE_BYTES

Content type header as a byte array

CHARSET

protected static final String CHARSET

Content charset

CHARSET_BYTES

protected static final byte[] CHARSET_BYTES

Content charset as a byte array

CONTENT_TRANSFER_ENCODING

protected static final String CONTENT_TRANSFER_ENCODING

Content type header

CONTENT_TRANSFER_ENCODING_BYTES

protected static final byte[] CONTENT_TRANSFER_ENCODING_BYTES

Content type header as a byte array

Constructor Detail

Part

public Part()

Method Detail

getBoundary

public static String getBoundary()

Return the boundary string.

Returns:

the boundary string

getName

public abstract String getName()

Return the name of this part.

Returns:

String The name.

getContentType

public abstract String getContentType()

Return the content type of this part.

Returns:

String The name.

getCharSet

public abstract String getCharSet()

Return the character encoding of this part.

Returns:

String The name.

getTransferEncoding

public abstract String getTransferEncoding()

Return the transfer encoding of this part.

Returns:

String The name.

sendStart

protected void sendStart(OutputStream out)
                  throws IOException

Write the start to the specified output stream

Parameters:

out - The output stream

Throws:

IOException - If an IO problem occurs.

sendDispositionHeader

protected void sendDispositionHeader(OutputStream out)
                              throws IOException

Write the content disposition header to the specified output stream

Parameters:

out - The output stream

Throws:

IOException - If an IO problem occurs.

sendContentTypeHeader

protected void sendContentTypeHeader(OutputStream out)
                              throws IOException

Write the content type header to the specified output stream

Parameters:

out - The output stream

Throws:

IOException - If an IO problem occurs.

sendTransferEncodingHeader

protected void sendTransferEncodingHeader(OutputStream out)
                                   throws IOException

Write the content transfer encoding header to the specified output stream

Parameters:

out - The output stream

Throws:

IOException - If an IO problem occurs.

sendEndOfHeader

protected void sendEndOfHeader(OutputStream out)
                        throws IOException

Write the end of the header to the output stream

Parameters:

out - The output stream

Throws:

IOException - If an IO problem occurs.

sendData

protected abstract void sendData(OutputStream out)
                          throws IOException

Write the data to the specified output stream

Parameters:

out - The output stream

Throws:

IOException - If an IO problem occurs.

lengthOfData

protected abstract long lengthOfData()
                              throws IOException

Return the length of the main content

Returns:

long The length.

Throws:

IOException - If an IO problem occurs

sendEnd

protected void sendEnd(OutputStream out)
                throws IOException

Write the end data to the output stream.

Parameters:

out - The output stream

Throws:

IOException - If an IO problem occurs.

send

public void send(OutputStream out)
          throws IOException

Write all the data to the output stream. If you override this method make sure to override #length() as well

Parameters:

out - The output stream

Throws:

IOException - If an IO problem occurs.

length

public long length()
            throws IOException

Return the full length of all the data. If you override this method make sure to override #send(OutputStream) as well

Returns:

long The length.

Throws:

IOException - If an IO problem occurs

toString

public String toString()

Return a string representation of this object.

Overrides:

toString in class Object

Returns:

A string representation of this object.

See Also:

Object.toString()

sendParts

public static void sendParts(OutputStream out,
                             Part[] parts)
                      throws IOException

Write all parts and the last boundary to the specified output stream

Parameters:

out - The output stream

parts - The array of parts to be sent

Throws:

IOException - If an IO problem occurs.

getLengthOfParts

public static long getLengthOfParts(Part[] parts)
                             throws IOException

Return the total sum of all parts and that of the last boundary

Parameters:

parts - The array of parts

Returns:

the total length

Throws:

IOException - If an IO problem occurs.