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package org.bouncycastle.crypto.tls.test;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
/**
* Tracks and enforces close() calls, without closing the underlying InputStream
*/
class NetworkInputStream extends FilterInputStream
{
boolean closed = false;
public NetworkInputStream(InputStream input)
{
super(input);
}
synchronized boolean isClosed()
{
return closed;
}
public int available() throws IOException
{
checkNotClosed();
return in.available();
}
public synchronized void close() throws IOException
{
closed = true;
}
public int read() throws IOException
{
checkNotClosed();
return in.read();
}
public int read(byte[] b) throws IOException
{
checkNotClosed();
return in.read(b);
}
public int read(byte[] b, int off, int len) throws IOException
{
checkNotClosed();
return in.read(b, off, len);
}
protected synchronized void checkNotClosed() throws IOException
{
if (closed)
{
throw new IOException("NetworkInputStream closed");
}
}
}
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