1 files changed, 135 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/crypto/keyring/MaskableEnvelopeEntry.java b/libjava/classpath/gnu/javax/crypto/keyring/MaskableEnvelopeEntry.java
new file mode 100644
index 000000000..58254a437
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+++ b/libjava/classpath/gnu/javax/crypto/keyring/MaskableEnvelopeEntry.java
@@ -0,0 +1,135 @@
+/* MaskableEnvelopeEntry.java --
+   Copyright (C) 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.javax.crypto.keyring;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * An envelope entry that can be "masked" -- placed in a state where the
+ * envelope's contents cannot be accessed, due to the envelope not being fully
+ * decoded, for example.
+ */
+public abstract class MaskableEnvelopeEntry
+    extends EnvelopeEntry
+{
+  /** The masked state. */
+  protected boolean masked;
+
+  public MaskableEnvelopeEntry(int type, Properties properties)
+  {
+    super(type, properties);
+  }
+
+  protected MaskableEnvelopeEntry(int type)
+  {
+    super(type);
+  }
+
+  /**
+   * Sets the masked state to the specified value.
+   *
+   * @param masked The new masked state.
+   */
+  protected final void setMasked(boolean masked)
+  {
+    this.masked = masked;
+  }
+
+  /**
+   * Gets the masked state of this object. Certain operations on this object
+   * will fail if it is masked.
+   *
+   * @return The current masked state.
+   */
+  public boolean isMasked()
+  {
+    return masked;
+  }
+
+  public void add(Entry entry)
+  {
+    if (isMasked())
+      throw new IllegalStateException("masked envelope");
+    super.add(entry);
+  }
+
+  public boolean containsEntry(Entry entry)
+  {
+    if (isMasked())
+      throw new IllegalStateException("masked envelope");
+    return super.containsEntry(entry);
+  }
+
+  public List getEntries()
+  {
+    if (isMasked())
+      throw new IllegalStateException("masked envelope");
+    return new ArrayList(entries);
+  }
+
+  public List get(String alias)
+  {
+    if (isMasked())
+      throw new IllegalStateException("masked envelope");
+    return super.get(alias);
+  }
+
+  public boolean remove(Entry entry)
+  {
+    if (isMasked())
+      throw new IllegalStateException("masked envelope");
+    return super.remove(entry);
+  }
+
+  public boolean remove(String alias)
+  {
+    if (isMasked())
+      throw new IllegalStateException("masked envelope");
+    return super.remove(alias);
+  }
+
+  public String toString()
+  {
+    return new StringBuilder("MaskableEnvelope{")
+        .append(super.toString())
+        .append(", masked=").append(masked)
+        .append("}").toString();
+  }
+}