MacOutputStream (Tapestry API - 5.8.7)

java.lang.Object
- java.io.OutputStream
- - org.apache.tapestry5.internal.util.MacOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable
```
public class MacOutputStream
extends java.io.OutputStream
```
An output stream that wraps around a Mac (message authentication code algorithm). This is currently used for symmetric (private) keys, but in theory could be used with assymetric (public/private) keys.

Since:

5.3.6

Constructor Summary

Constructors
Constructor Description

MacOutputStream(javax.crypto.Mac mac)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.String`	`getResult()`	Should only be invoked once, immediately after this stream is closed; it generates the final MAC result, and returns it as a Base64 encoded string.
`static MacOutputStream`	`streamFor(java.security.Key key)`
`void`	`write(byte[] b)`
`void`	`write(byte[] b, int off, int len)`
`void`	`write(int b)`

Methods inherited from class java.io.OutputStream
close, flush, nullOutputStream

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - MacOutputStream
```
public MacOutputStream(javax.crypto.Mac mac)
```
- Method Detail
  - streamFor
```
public static MacOutputStream streamFor(java.security.Key key)
                                 throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - getResult
```
public java.lang.String getResult()
```
    Should only be invoked once, immediately after this stream is closed; it generates the final MAC result, and returns it as a Base64 encoded string.
    
    Returns:
    
    Base64 encoded MAC result
  - write
```
public void write(int b)
           throws java.io.IOException
```
    Specified by:
    
    write in class java.io.OutputStream
    
    Throws:
    
    java.io.IOException
  - write
```
public void write(byte[] b)
           throws java.io.IOException
```
    Overrides:
    
    write in class java.io.OutputStream
    
    Throws:
    
    java.io.IOException
  - write
```
public void write(byte[] b,
                  int off,
                  int len)
           throws java.io.IOException
```
    Overrides:
    
    write in class java.io.OutputStream
    
    Throws:
    
    java.io.IOException