Package org.kuali.rice.ksb.security

Class SignatureSigningOutputStream

java.lang.Object

java.io.OutputStream

javax.servlet.ServletOutputStream

org.kuali.rice.ksb.security.SignatureSigningOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class SignatureSigningOutputStream
extends javax.servlet.ServletOutputStream

An OutputStream which decorates another OutputStream with a wrapper that digitally signs the data when the OutputStream is closed. Since this class does not know where the resulting digital signature will reside, a DigitalSigner will be invoked to execute the actual signing of the message (i.e. put it in a header).

Author:

Kuali Rice Team (rice.collab@kuali.org)

Constructor Summary

Constructors

Constructor	Description
SignatureSigningOutputStream(DigitalSigner signer, OutputStream wrappedOutputStream, boolean delayWrite)	Constructs a SignatureSigningOutputStream with the given DigitalSigner and underlying OutputStream.

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	isReady()
void	setWriteListener(javax.servlet.WriteListener writeListener)
void	write(int data)

Methods inherited from class javax.servlet.ServletOutputStream

print, print, print, print, print, print, print, println, println, println, println, println, println, println, println

Methods inherited from class java.io.OutputStream

flush, nullOutputStream, write, write

Methods inherited from class java.lang.Object

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

Constructor Details

SignatureSigningOutputStream

public SignatureSigningOutputStream(DigitalSigner signer,
 OutputStream wrappedOutputStream,
 boolean delayWrite)

Constructs a SignatureSigningOutputStream with the given DigitalSigner and underlying OutputStream. If true, the delayWrite boolean indicates that the stream should store all data internally until the stream is closed, at which point it should forward all data to the wrapped OutputStream. If delayWrite is false, then the data will be forwarded immediately.

Method Details

write

public void write(int data)
           throws IOException

Specified by:

write in class OutputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class OutputStream

Throws:

IOException

isReady

public boolean isReady()

Specified by:

isReady in class javax.servlet.ServletOutputStream

setWriteListener

public void setWriteListener(javax.servlet.WriteListener writeListener)

Specified by:

setWriteListener in class javax.servlet.ServletOutputStream