org.bouncycastle.asn1.DefiniteLengthInputStream Maven / Gradle / Ivy

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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. The package is organised so that it contains a light-weight API suitable for use in any environment (including the newly released J2ME) with the additional infrastructure to conform the algorithms to the JCE framework.

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package org.bouncycastle.asn1;

import java.io.InputStream;
import java.io.IOException;

class DefiniteLengthInputStream
        extends LimitedInputStream
{
    private int               _length;

    DefiniteLengthInputStream(
        InputStream in,
        int         length)
    {
        super(in);

        this._length = length;
    }

    public int read()
        throws IOException
    {
        if (_length-- > 0)
        {
            return _in.read();
        }
        else
        {
            setParentEofDetect(true);

            return -1;
        }
    }
}