/**
* Constructs a {@code MemoryCacheImageInputStream} that will read from a given {@code
* InputStream}.
*
* @param stream an {@code InputStream} to read from.
* @exception IllegalArgumentException if {@code stream} is {@code null}.
*/
public MemoryCacheImageInputStream(InputStream stream) {
if (stream == null) {
throw new IllegalArgumentException("stream == null!");
}
this.stream = stream;
disposerRecord = new StreamDisposerRecord(cache);
if (getClass() == MemoryCacheImageInputStream.class) {
disposerReferent = new Object();
Disposer.addRecord(disposerReferent, disposerRecord);
} else {
disposerReferent = new StreamFinalizer(this);
}
}
/**
* Constructs a <code>FileImageInputStream</code> that will read from a given <code>
* RandomAccessFile</code>.
*
* <p>The file contents must not change between the time this object is constructed and the time
* of the last call to a read method.
*
* @param raf a <code>RandomAccessFile</code> to read from.
* @exception IllegalArgumentException if <code>raf</code> is <code>null</code>.
*/
public FileImageInputStream(RandomAccessFile raf) {
if (raf == null) {
throw new IllegalArgumentException("raf == null!");
}
this.raf = raf;
disposerRecord = new CloseableDisposerRecord(raf);
if (getClass() == FileImageInputStream.class) {
disposerReferent = new Object();
Disposer.addRecord(disposerReferent, disposerRecord);
} else {
disposerReferent = new StreamFinalizer(this);
}
}