| /* FormatUtil.java -- Encoding and decoding format utility methods |
| 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.java.security.util; |
| |
| import gnu.java.security.Registry; |
| |
| /** |
| * Encoding and decoding format utility methods. |
| */ |
| public class FormatUtil |
| { |
| /** Trivial constructor to enforce Singleton pattern. */ |
| private FormatUtil() |
| { |
| super(); |
| } |
| |
| /** |
| * Returns the fully qualified name of the designated encoding ID. |
| * |
| * @param formatID the unique identifier of the encoding format. |
| * @return the fully qualified name of the designated format. Returns |
| * <code>null</code> if no such encoding format is known. |
| */ |
| public static final String getEncodingName(int formatID) |
| { |
| String result = null; |
| switch (formatID) |
| { |
| case Registry.RAW_ENCODING_ID: |
| result = Registry.RAW_ENCODING; |
| break; |
| case Registry.X509_ENCODING_ID: |
| result = Registry.X509_ENCODING; |
| break; |
| case Registry.PKCS8_ENCODING_ID: |
| result = Registry.PKCS8_ENCODING; |
| break; |
| case Registry.ASN1_ENCODING_ID: |
| result = Registry.ASN1_ENCODING; |
| break; |
| } |
| |
| return result; |
| } |
| |
| /** |
| * Returns the short name of the designated encoding ID. This is used by the |
| * JCE Adapters. |
| * |
| * @param formatID the unique identifier of the encoding format. |
| * @return the short name of the designated format. Returns <code>null</code> |
| * if no such encoding format is known. |
| */ |
| public static final String getEncodingShortName(int formatID) |
| { |
| String result = null; |
| switch (formatID) |
| { |
| case Registry.RAW_ENCODING_ID: |
| result = Registry.RAW_ENCODING_SHORT_NAME; |
| break; |
| case Registry.X509_ENCODING_ID: |
| result = Registry.X509_ENCODING_SORT_NAME; |
| break; |
| case Registry.PKCS8_ENCODING_ID: |
| result = Registry.PKCS8_ENCODING_SHORT_NAME; |
| break; |
| case Registry.ASN1_ENCODING_ID: |
| result = Registry.ASN1_ENCODING_SHORT_NAME; |
| break; |
| } |
| |
| return result; |
| } |
| |
| /** |
| * Returns the identifier of the encoding format given its short name. |
| * |
| * @param name the case-insensitive canonical short name of an encoding |
| * format. |
| * @return the identifier of the designated encoding format, or <code>0</code> |
| * if the name does not correspond to any known format. |
| */ |
| public static final int getFormatID(String name) |
| { |
| if (name == null) |
| return 0; |
| |
| name = name.trim(); |
| if (name.length() == 0) |
| return 0; |
| |
| int result = 0; |
| if (name.equalsIgnoreCase(Registry.RAW_ENCODING_SHORT_NAME)) |
| result = Registry.RAW_ENCODING_ID; |
| else if (name.equalsIgnoreCase(Registry.X509_ENCODING_SORT_NAME)) |
| result = Registry.X509_ENCODING_ID; |
| else if (name.equalsIgnoreCase(Registry.PKCS8_ENCODING_SHORT_NAME)) |
| result = Registry.PKCS8_ENCODING_ID; |
| |
| return result; |
| } |
| } |