org.apache.poi.poifs.crypt
Class ChunkedCipherInputStream

java.lang.Object
  extended by java.io.InputStream
      extended by java.io.FilterInputStream
          extended by org.apache.poi.util.LittleEndianInputStream
              extended by org.apache.poi.poifs.crypt.ChunkedCipherInputStream
All Implemented Interfaces:
java.io.Closeable, LittleEndianInput

@Internal
public abstract class ChunkedCipherInputStream
extends LittleEndianInputStream


Field Summary
 
Fields inherited from class java.io.FilterInputStream
in
 
Constructor Summary
ChunkedCipherInputStream(LittleEndianInput stream, long size, int chunkSize)
           
 
Method Summary
 int available()
           
protected abstract  javax.crypto.Cipher initCipherForBlock(javax.crypto.Cipher existing, int block)
           
 void mark(int readlimit)
           
 boolean markSupported()
           
 int read()
           
 int read(byte[] b, int off, int len)
           
 void reset()
           
 long skip(long n)
           
 
Methods inherited from class org.apache.poi.util.LittleEndianInputStream
readByte, readDouble, readFully, readFully, readInt, readLong, readShort, readUByte, readUInt, readUShort
 
Methods inherited from class java.io.FilterInputStream
close, read
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ChunkedCipherInputStream

public ChunkedCipherInputStream(LittleEndianInput stream,
                                long size,
                                int chunkSize)
                         throws java.security.GeneralSecurityException
Throws:
java.security.GeneralSecurityException
Method Detail

initCipherForBlock

protected abstract javax.crypto.Cipher initCipherForBlock(javax.crypto.Cipher existing,
                                                          int block)
                                                   throws java.security.GeneralSecurityException
Throws:
java.security.GeneralSecurityException

read

public int read()
         throws java.io.IOException
Overrides:
read in class java.io.FilterInputStream
Throws:
java.io.IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws java.io.IOException
Overrides:
read in class java.io.FilterInputStream
Throws:
java.io.IOException

skip

public long skip(long n)
          throws java.io.IOException
Overrides:
skip in class java.io.FilterInputStream
Throws:
java.io.IOException

available

public int available()
Specified by:
available in interface LittleEndianInput
Overrides:
available in class LittleEndianInputStream

markSupported

public boolean markSupported()
Overrides:
markSupported in class java.io.FilterInputStream

mark

public void mark(int readlimit)
Overrides:
mark in class java.io.FilterInputStream

reset

public void reset()
           throws java.io.IOException
Overrides:
reset in class java.io.FilterInputStream
Throws:
java.io.IOException


Copyright 2016 The Apache Software Foundation or its licensors, as applicable.