1 files changed, 157 insertions, 0 deletions
diff --git a/libjava/javax/imageio/stream/ImageInputStreamImpl.java b/libjava/javax/imageio/stream/ImageInputStreamImpl.java
new file mode 100644
index 0000000..27cb6c5
--- /dev/null
+++ b/libjava/javax/imageio/stream/ImageInputStreamImpl.java
@@ -0,0 +1,157 @@
+/* ImageInputStream.java --
+   Copyright (C) 2004  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package javax.imageio.stream;
+
+import java.io.IOException;
+import java.nio.ByteOrder;
+
+/**
+ * @author Michael Koch (konqueror@gmx.de)
+ */
+public abstract class ImageInputStreamImpl implements ImageInputStream
+{
+  private boolean closed;
+  
+  protected int bitOffset;
+  protected ByteOrder byteOrder;
+  protected long flushedPos;
+  protected long streamPos;
+
+  public ImageInputStreamImpl()
+  {
+    // Do nothing here.
+  }
+
+  protected void checkClosed()
+    throws IOException
+  {
+    if (closed)
+      throw new IOException("stream closed");
+  }
+
+  public void close()
+    throws IOException
+  {
+    checkClosed();
+    closed = true;
+  }
+  
+  protected void finalize()
+    throws Throwable
+  {
+    close();
+  }
+
+  public void flush()
+    throws IOException
+  {
+    flushBefore(getStreamPosition());
+  }
+
+  public void flushBefore(long position)
+    throws IOException
+  {
+    if (position < flushedPos)
+      throw new IndexOutOfBoundsException();
+
+    if (position > streamPos)
+      throw new IndexOutOfBoundsException();
+
+    flushedPos = position;
+  }
+
+  public int getBitOffset()
+    throws IOException
+  {
+    return bitOffset;
+  }
+
+  public ByteOrder getByteOrder()
+  {
+    return byteOrder;
+  }
+
+  public long getFlushedPosition()
+  {
+    return flushedPos;
+  }
+
+  public long getStreamPosition()
+    throws IOException
+  {
+    return streamPos;
+  }
+
+  public boolean isCached()
+  {
+    return false;
+  }
+
+  public boolean isCachedFile()
+  {
+    return false;
+  }
+
+  public boolean isCachedMemory()
+  {
+    return false;
+  }
+
+  public long length()
+  {
+    return -1L;
+  }
+
+  public abstract int read()
+    throws IOException;
+
+  public int read(byte[] data)
+    throws IOException
+  {
+    return read(data, 0, data.length);
+  }
+
+  public abstract int read(byte[] data, int offset, int len)
+    throws IOException;
+
+  public void setByteOrder (ByteOrder byteOrder)
+  {
+    this.byteOrder = byteOrder;
+  }
+}