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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/java/security/util/FormatUtil.java | |
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Diffstat (limited to 'libjava/classpath/gnu/java/security/util/FormatUtil.java')
-rw-r--r-- | libjava/classpath/gnu/java/security/util/FormatUtil.java | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/security/util/FormatUtil.java b/libjava/classpath/gnu/java/security/util/FormatUtil.java new file mode 100644 index 000000000..35da322b8 --- /dev/null +++ b/libjava/classpath/gnu/java/security/util/FormatUtil.java @@ -0,0 +1,140 @@ +/* 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; + } +} |