ChecksumVerifyingInputStream (Apache Commons Compress 1.13 API)

java.lang.Object
- java.io.InputStream
- - org.apache.commons.compress.utils.ChecksumVerifyingInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

CRC32VerifyingInputStream
```
public class ChecksumVerifyingInputStream
extends InputStream
```
A stream that verifies the checksum of the data read once the stream is exhausted.

Since:

1.7

This class is not thread-safe

Constructor Summary

Constructors
Constructor and Description
`ChecksumVerifyingInputStream(Checksum checksum, InputStream in, long size, long expectedChecksum)`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`close()`
`int`	`read()` Reads a single byte from the stream
`int`	`read(byte[] b)` Reads a byte array from the stream
`int`	`read(byte[] b, int off, int len)` Reads from the stream into a byte array.
`long`	`skip(long n)`

Methods inherited from class java.io.InputStream
available, mark, markSupported, reset

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

- Constructor Detail
  - ChecksumVerifyingInputStream
```
public ChecksumVerifyingInputStream(Checksum checksum,
                            InputStream in,
                            long size,
                            long expectedChecksum)
```
- Method Detail
  - read
```
public int read()
         throws IOException
```
    Reads a single byte from the stream
    
    Specified by:
    
    read in class InputStream
    
    Throws:
    
    IOException - if the underlying stream throws or the stream is exhausted and the Checksum doesn't match the expected value
  - read
```
public int read(byte[] b)
         throws IOException
```
    Reads a byte array from the stream
    
    Overrides:
    
    read in class InputStream
    
    Throws:
    
    IOException - if the underlying stream throws or the stream is exhausted and the Checksum doesn't match the expected value
  - read
```
public int read(byte[] b,
       int off,
       int len)
         throws IOException
```
    Reads from the stream into a byte array.
    
    Overrides:
    
    read in class InputStream
    
    Throws:
    
    IOException - if the underlying stream throws or the stream is exhausted and the Checksum doesn't match the expected value
  - skip
```
public long skip(long n)
          throws IOException
```
    Overrides:
    
    skip in class InputStream
    
    Throws:
    
    IOException
  - close
```
public void close()
           throws IOException
```
    Specified by:
    
    close in interface Closeable
    
    Specified by:
    
    close in interface AutoCloseable
    
    Overrides:
    
    close in class InputStream
    
    Throws:
    
    IOException

Class ChecksumVerifyingInputStream

Constructor Summary

Method Summary

Methods inherited from class java.io.InputStream

Methods inherited from class java.lang.Object

Constructor Detail

ChecksumVerifyingInputStream

Method Detail

read

read

read

skip

close