1 files changed, 86 insertions, 0 deletions
diff --git a/tools/gnu/classpath/tools/jar/WorkSet.java b/tools/gnu/classpath/tools/jar/WorkSet.java
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+++ b/tools/gnu/classpath/tools/jar/WorkSet.java
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+/* WorkSet.java -- Helper to track what files to work on
+   Copyright (C) 2006 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 gnu.classpath.tools.jar;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.Iterator;
+
+public class WorkSet
+{
+  private HashSet allItems;
+
+  private void initSet(ArrayList entries)
+  {
+    if (entries == null || entries.isEmpty())
+      return;
+    allItems = new HashSet();
+    Iterator it = entries.iterator();
+    while (it.hasNext())
+      {
+        Entry entry = (Entry) it.next();
+        int len = entry.name.length();
+        while (len > 0 && entry.name.charAt(len - 1) == '/')
+          --len;
+        String name = entry.name.substring(0, len);
+        allItems.add(name);
+      }
+  }
+
+  public WorkSet(ArrayList entries)
+  {
+    initSet(entries);
+  }
+
+  public boolean contains(String filename)
+  {
+    if (allItems == null)
+      return true;
+    while (filename.length() > 0)
+      {
+        if (allItems.contains(filename))
+          return true;
+        int index = filename.lastIndexOf('/');
+        if (index == -1)
+          break;
+        filename = filename.substring(0, index);
+      }
+    return false;
+  }
+}