Initial revision

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@102074 138bc75d-0d04-0410-961f-82ee72b054a4

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diff --git a/libjava/classpath/javax/security/auth/SubjectDomainCombiner.java b/libjava/classpath/javax/security/auth/SubjectDomainCombiner.java
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+/* SubjectDomainCombiner.java -- domain combiner for Subjects.
+   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.security.auth;
+
+import java.security.DomainCombiner;
+import java.security.Principal;
+import java.security.ProtectionDomain;
+
+import java.util.LinkedList;
+
+public class SubjectDomainCombiner implements DomainCombiner
+{
+
+  // Field.
+  // -------------------------------------------------------------------------
+
+  private final Subject subject;
+
+  // Constructor.
+  // -------------------------------------------------------------------------
+
+  public SubjectDomainCombiner (final Subject subject)
+  {
+    this.subject = subject;
+  }
+
+  // Instance methods.
+  // -------------------------------------------------------------------------
+
+  public ProtectionDomain[] combine (final ProtectionDomain[] current,
+                                     final ProtectionDomain[] assigned)
+  {
+    LinkedList domains = new LinkedList();
+    Principal[] principals =
+      (Principal[]) subject.getPrincipals().toArray (new Principal[0]);
+    if (current != null)
+      {
+        for (int i = 0; i < current.length; i++)
+          {
+            domains.add (new ProtectionDomain (current[i].getCodeSource(),
+                                               current[i].getPermissions(),
+                                               current[i].getClassLoader(),
+                                               principals));
+          }
+      }
+    if (assigned != null)
+      {
+        for (int i = 0; i < assigned.length; i++)
+          {
+            domains.add (assigned[i]);
+          }
+      }
+    return (ProtectionDomain[]) domains.toArray (new ProtectionDomain[domains.size()]);
+  }
+
+  public Subject getSubject()
+  {
+    return subject;
+  }
+}