| /* 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(); |
| } |
| } |