public class CountingInputStream extends ProxyInputStream
A typical use case would be during debugging, to ensure that data is being read as expected.
in
Constructor and Description |
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CountingInputStream(InputStream in)
Constructs a new CountingInputStream.
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Modifier and Type | Method and Description |
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protected void |
afterRead(int n)
Adds the number of read bytes to the count.
|
long |
getByteCount()
The number of bytes that have passed through this stream.
|
int |
getCount()
The number of bytes that have passed through this stream.
|
long |
resetByteCount()
Set the byte count back to 0.
|
int |
resetCount()
Set the byte count back to 0.
|
long |
skip(long length)
Skips the stream over the specified number of bytes, adding the skipped
amount to the count.
|
available, beforeRead, close, handleIOException, mark, markSupported, read, read, read, reset
public CountingInputStream(InputStream in)
in
- the InputStream to delegate topublic long skip(long length) throws IOException
skip
in class ProxyInputStream
length
- the number of bytes to skipIOException
- if an I/O error occursInputStream.skip(long)
protected void afterRead(int n)
afterRead
in class ProxyInputStream
n
- number of bytes read, or -1 if no more bytes are availablepublic int getCount()
NOTE: From v1.3 this method throws an ArithmeticException if the
count is greater than can be expressed by an int
.
See getByteCount()
for a method using a long
.
ArithmeticException
- if the byte count is too largepublic int resetCount()
NOTE: From v1.3 this method throws an ArithmeticException if the
count is greater than can be expressed by an int
.
See resetByteCount()
for a method using a long
.
ArithmeticException
- if the byte count is too largepublic long getByteCount()
NOTE: This method is an alternative for getCount()
and was added because that method returns an integer which will
result in incorrect count for files over 2GB.
public long resetByteCount()
NOTE: This method is an alternative for resetCount()
and was added because that method returns an integer which will
result in incorrect count for files over 2GB.
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