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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/javax/imageio/stream/FileImageInputStream.java
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+/* FileImageInputStream.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., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 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.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+
+/**
+ * @author Michael Koch (konqueror@gmx.de)
+ */
+public class FileImageInputStream extends ImageInputStreamImpl
+{
+ private RandomAccessFile file;
+
+ public FileImageInputStream(File file)
+ throws FileNotFoundException, IOException
+ {
+ if (file == null)
+ throw new IllegalArgumentException ("file may not be null");
+
+ this.file = new RandomAccessFile(file, "r");
+ }
+
+ public FileImageInputStream(RandomAccessFile file)
+ {
+ if (file == null)
+ throw new IllegalArgumentException ("file may not be null");
+
+ this.file = file;
+ }
+
+ public void close()
+ throws IOException
+ {
+ file.close();
+ }
+
+ public long length()
+ {
+ try
+ {
+ return file.length();
+ }
+ catch (IOException e)
+ {
+ return -1L;
+ }
+ }
+
+ public int read()
+ throws IOException
+ {
+ setBitOffset(0);
+ return file.read();
+ }
+
+ public int read(byte[] data, int offset, int len)
+ throws IOException
+ {
+ setBitOffset(0);
+ return file.read(data, offset, len);
+ }
+
+ public void seek(long position)
+ throws IOException
+ {
+ super.seek(position);
+ file.seek(position);
+ }
+}