jodd.servlet.upload
Class MultipartRequestInputStream

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          java.io.BufferedInputStream
              jodd.servlet.upload.MultipartRequestInputStream

All Implemented Interfaces:

java.io.Closeable

public class MultipartRequestInputStream
extends java.io.BufferedInputStream

Extended input stream based on buffered requests input stream. It provides some more functions that might be useful when working with uploaded fies.

Field Summary

protected byte[]	boundary
protected FileUploadHeader	lastHeader

Fields inherited from class java.io.BufferedInputStream

buf, count, marklimit, markpos, pos

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

MultipartRequestInputStream(java.io.InputStream in)

Method Summary

int	copyAll(java.io.OutputStream out) Copies bytes from this stream to some output until boundary is reached.
int	copyMax(java.io.OutputStream out, int maxBytes) Copies max or less number of bytes to output stream.
FileUploadHeader	getLastHeader()
boolean	isBoundary(byte b) Checks if the current byte (i.e. one that was read last) represents the very first byte of the boundary.
byte[]	readBoundary() Reads boundary from the input stream.
byte	readByte() Reads expected byte.
FileUploadHeader	readDataHeader(java.lang.String encoding) Reads data header from the input stream.
protected java.lang.String	readDataHeaderString(java.lang.String encoding)
void	skipBytes(int i) Skips specified number of bytes.
int	skipToBoundary() Skips to the boundary and returns total number of bytes skipped.

Methods inherited from class java.io.BufferedInputStream

available, close, mark, markSupported, read, read, reset, skip

Methods inherited from class java.io.FilterInputStream

read

Methods inherited from class java.lang.Object

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

Field Detail

boundary

protected byte[] boundary

lastHeader

protected FileUploadHeader lastHeader

Constructor Detail

MultipartRequestInputStream

public MultipartRequestInputStream(java.io.InputStream in)

Method Detail

readByte

public byte readByte()
              throws java.io.IOException

Reads expected byte. Throws exception on streams end.

Throws:

java.io.IOException

skipBytes

public void skipBytes(int i)
               throws java.io.IOException

Skips specified number of bytes.

Throws:

java.io.IOException

readBoundary

public byte[] readBoundary()
                    throws java.io.IOException

Reads boundary from the input stream.

Throws:

java.io.IOException

getLastHeader

public FileUploadHeader getLastHeader()

readDataHeader

public FileUploadHeader readDataHeader(java.lang.String encoding)
                                throws java.io.IOException

Reads data header from the input stream. When there is no more headers (i.e. end of stream reached), returns null

Throws:

java.io.IOException

readDataHeaderString

protected java.lang.String readDataHeaderString(java.lang.String encoding)
                                         throws java.io.IOException

Throws:

java.io.IOException

copyAll

public int copyAll(java.io.OutputStream out)
            throws java.io.IOException

Copies bytes from this stream to some output until boundary is reached. Returns number of copied bytes. It will throw an exception for any irregular behaviour.

Throws:

java.io.IOException

copyMax

public int copyMax(java.io.OutputStream out,
                   int maxBytes)
            throws java.io.IOException

Copies max or less number of bytes to output stream. Useful for determining if uploaded file is larger then expected.

Throws:

java.io.IOException

skipToBoundary

public int skipToBoundary()
                   throws java.io.IOException

Skips to the boundary and returns total number of bytes skipped.

Throws:

java.io.IOException

isBoundary

public boolean isBoundary(byte b)
                   throws java.io.IOException

Checks if the current byte (i.e. one that was read last) represents the very first byte of the boundary.

Throws:

java.io.IOException