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

java.lang.Object
  org.apache.commons.httpclient.methods.multipart.Part

Direct Known Subclasses:

PartBase

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	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

abstract String	getCharSet() Return the character encoding of this part.
abstract String	getContentType() Returns the content type of this part.
static long	getLengthOfParts(Part[] parts) Return the total sum of all parts and that of the last boundary
static long	getLengthOfParts(Part[] parts, byte[] partBoundary) Gets the length of the multipart message including the given parts.
abstract String	getName() Return the name of this part.
protected byte[]	getPartBoundary() Gets the part boundary to be used.
abstract String	getTransferEncoding() Return the transfer encoding of this part.
boolean	isRepeatable() Tests if this part can be sent more than once.
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.
static void	sendParts(OutputStream out, Part[] parts, byte[] partBoundary) 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

CRLF

protected static final String CRLF

Carriage return/linefeed

See Also:

Constant Field Values

CRLF_BYTES

protected static final byte[] CRLF_BYTES

Carriage return/linefeed as a byte array

QUOTE

protected static final String QUOTE

Content dispostion characters

See Also:

Constant Field Values

QUOTE_BYTES

protected static final byte[] QUOTE_BYTES

Content dispostion as a byte array

EXTRA

protected static final String EXTRA

Extra characters

See Also:

Constant Field Values

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

See Also:

Constant Field Values

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

See Also:

Constant Field Values

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

See Also:

Constant Field Values

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

See Also:

Constant Field Values

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

getName

public abstract String getName()

Return the name of this part.

Returns:

The name.

getContentType

public abstract String getContentType()

Returns the content type of this part.

Returns:

the content type, or null to exclude the content type header

getCharSet

public abstract String getCharSet()

Return the character encoding of this part.

Returns:

the character encoding, or null to exclude the character encoding header

getTransferEncoding

public abstract String getTransferEncoding()

Return the transfer encoding of this part.

Returns:

the transfer encoding, or null to exclude the transfer encoding header

getPartBoundary

protected byte[] getPartBoundary()

Gets the part boundary to be used.

Returns:

the part boundary as an array of bytes.

Since:

3.0

isRepeatable

public boolean isRepeatable()

Tests if this part can be sent more than once.

Returns:

true if sendData(OutputStream) can be successfully called more than once.

Since:

3.0

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 stream to write to.

parts - The parts to write.

Throws:

IOException - If an I/O error occurs while writing the parts.

sendParts

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

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

Parameters:

out - The stream to write to.

parts - The parts to write.

partBoundary - The ASCII bytes to use as the part boundary.

Throws:

IOException - If an I/O error occurs while writing the parts.

Since:

3.0

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 parts.

Returns:

The total length

Throws:

IOException - If an I/O error occurs while writing the parts.

getLengthOfParts

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

Gets the length of the multipart message including the given parts.

Parameters:

parts - The parts.

partBoundary - The ASCII bytes to use as the part boundary.

Returns:

The total length

Throws:

IOException - If an I/O error occurs while writing the parts.

Since:

3.0