File	Doc	Category	Size	Date	Package
CountingInputStream.java	API Doc	Android 1.5 API	6341	Wed May 06 22:42:46 BST 2009	org.apache.commons.io.input

CountingInputStream

• java.lang.Object
  • java.io.InputStream
    • java.io.FilterInputStream
      • org.apache.commons.io.input.ProxyInputStream

Fields Summary
private long	count The count of bytes that have passed.

Constructors Summary
public CountingInputStream(InputStream in) Constructs a new CountingInputStream. param in the InputStream to delegate to super(in);

Methods Summary
public synchronized long	getByteCount() The number of bytes that have passed through this stream. 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. return the number of bytes accumulated since Commons IO 1.3 return this.count;
public synchronized int	getCount() The number of bytes that have passed through this stream. NOTE: From v1.3 this method throws an ArithmeticException if the count is greater than can be expressed by an int. See {@link #getByteCount()} for a method using a long. return the number of bytes accumulated throws ArithmeticException if the byte count is too large long result = getByteCount(); if (result > Integer.MAX_VALUE) { throw new ArithmeticException("The byte count " + result + " is too large to be converted to an int"); } return (int) result;
public int	read(byte[] b) Reads a number of bytes into the byte array, keeping count of the number read. param b the buffer into which the data is read, not null return the total number of bytes read into the buffer, -1 if end of stream throws IOException if an I/O error occurs see java.io.InputStream#read(byte[]) int found = super.read(b); this.count += (found >= 0) ? found : 0; return found;
public int	read(byte[] b, int off, int len) Reads a number of bytes into the byte array at a specific offset, keeping count of the number read. param b the buffer into which the data is read, not null param off the start offset in the buffer param len the maximum number of bytes to read return the total number of bytes read into the buffer, -1 if end of stream throws IOException if an I/O error occurs see java.io.InputStream#read(byte[], int, int) int found = super.read(b, off, len); this.count += (found >= 0) ? found : 0; return found;
public int	read() Reads the next byte of data adding to the count of bytes received if a byte is successfully read. return the byte read, -1 if end of stream throws IOException if an I/O error occurs see java.io.InputStream#read() int found = super.read(); this.count += (found >= 0) ? 1 : 0; return found;
public synchronized long	resetByteCount() Set the byte count back to 0. 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. return the count previous to resetting since Commons IO 1.3 long tmp = this.count; this.count = 0; return tmp;
public synchronized int	resetCount() Set the byte count back to 0. NOTE: From v1.3 this method throws an ArithmeticException if the count is greater than can be expressed by an int. See {@link #resetByteCount()} for a method using a long. return the count previous to resetting throws ArithmeticException if the byte count is too large long result = resetByteCount(); if (result > Integer.MAX_VALUE) { throw new ArithmeticException("The byte count " + result + " is too large to be converted to an int"); } return (int) result;
public long	skip(long length) Skips the stream over the specified number of bytes, adding the skipped amount to the count. param length the number of bytes to skip return the actual number of bytes skipped throws IOException if an I/O error occurs see java.io.InputStream#skip(long) final long skip = super.skip(length); this.count += skip; return skip;