1 files changed, 101 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/security/sig/SignatureFactory.java b/gcc-4.4.3/libjava/classpath/gnu/java/security/sig/SignatureFactory.java
new file mode 100644
index 000000000..28b68925b
--- /dev/null
+++ b/gcc-4.4.3/libjava/classpath/gnu/java/security/sig/SignatureFactory.java
@@ -0,0 +1,101 @@
+/* SignatureFactory.java -- 
+   Copyright (C) 2001, 2002, 2003, 2006 Free Software Foundation, Inc.
+
+This file is a 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 of the License, 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; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, 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.java.security.sig;
+
+import gnu.java.security.Registry;
+import gnu.java.security.sig.dss.DSSSignature;
+import gnu.java.security.sig.rsa.RSASignatureFactory;
+
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * A Factory to instantiate signature-with-appendix handlers.
+ */
+public class SignatureFactory
+{
+  private static Set names;
+
+  /** Trivial constructor to enforce Singleton pattern. */
+  private SignatureFactory()
+  {
+    super();
+  }
+
+  /**
+   * Returns an instance of a signature-with-appendix scheme given its name.
+   * 
+   * @param ssa the case-insensitive signature-with-appendix scheme name.
+   * @return an instance of the scheme, or <code>null</code> if none found.
+   */
+  public static final ISignature getInstance(String ssa)
+  {
+    if (ssa == null)
+      return null;
+
+    ssa = ssa.trim();
+    ssa = ssa.toLowerCase();
+    ISignature result = null;
+    if (ssa.equalsIgnoreCase(Registry.DSA_SIG) || ssa.equals(Registry.DSS_SIG))
+      result = new DSSSignature();
+    else if (ssa.startsWith(Registry.RSA_SIG_PREFIX))
+      result = RSASignatureFactory.getInstance(ssa);
+
+    return result;
+  }
+
+  /**
+   * Returns a {@link Set} of signature-with-appendix scheme names supported by
+   * this <i>Factory</i>.
+   * 
+   * @return a {@link Set} of signature-with-appendix scheme names (Strings).
+   */
+  public static synchronized final Set getNames()
+  {
+    if (names == null)
+      {
+        HashSet hs = new HashSet();
+        hs.add(Registry.DSS_SIG);
+        hs.addAll(RSASignatureFactory.getNames());
+        names = Collections.unmodifiableSet(hs);
+      }
+    return names;
+  }
+}