utility class for making an Enumeration over input files

suitable for passing to SequenceInputStream

diff --git a/source/mir/misc/ListOfFiles.java b/source/mir/misc/ListOfFiles.java
new file mode 100755 (executable)
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+++ b/source/mir/misc/ListOfFiles.java
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+/*
+ * Copyright (C) 2001, 2002  The Mir-coders group
+ *
+ * This file is part of Mir.
+ *
+ * Mir 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 of the License, or
+ * (at your option) any later version.
+ *
+ * Mir 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 Mir; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * In addition, as a special exception, The Mir-coders gives permission to link
+ * the code of this program with the com.oreilly.servlet library, any library
+ * licensed under the Apache Software License, The Sun (tm) Java Advanced
+ * Imaging library (JAI), The Sun JIMI library (or with modified versions of
+ * the above that use the same license as the above), and distribute linked
+ * combinations including the two.  You must obey the GNU General Public
+ * License in all respects for all of the code used other than the above
+ * mentioned libraries.  If you modify this file, you may extend this exception
+ * to your version of the file, but you are not obligated to do so.  If you do
+ * not wish to do so, delete this exception statement from your version.
+ */
+
+/* taken largely from the java tutorial --- pretty much wholesale, 
+ * except modified to take a list rather than an array --jd
+ */
+
+package mir.misc;
+
+import java.util.*;
+import java.io.*;
+
+public class ListOfFiles implements Enumeration {
+
+    private LinkedList listOfFiles;
+    private ListIterator listOfFilesIterator;
+    
+
+    public ListOfFiles(LinkedList listOfFiles) {
+        this.listOfFiles = listOfFiles;
+       this.listOfFilesIterator = listOfFiles.listIterator();
+    }
+    
+    public boolean hasMoreElements() {
+       return listOfFilesIterator.hasNext();
+    }
+
+    public Object nextElement() {
+        InputStream in = null;
+
+        if (!hasMoreElements())
+            throw new NoSuchElementException("No more files.");
+        else {
+            String nextElement = (String) listOfFilesIterator.next();
+            try {
+                in = new FileInputStream(nextElement);
+            } catch (FileNotFoundException e) {
+                System.err.println("ListOfFiles: Can't open " + nextElement);
+            }
+        }
+        return in;
+    }
+}
+
+
+
+
+