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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/nio/charset/iconv/IconvProvider.java | |
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Diffstat (limited to 'libjava/classpath/gnu/java/nio/charset/iconv/IconvProvider.java')
-rw-r--r-- | libjava/classpath/gnu/java/nio/charset/iconv/IconvProvider.java | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/nio/charset/iconv/IconvProvider.java b/libjava/classpath/gnu/java/nio/charset/iconv/IconvProvider.java new file mode 100644 index 000000000..1d5ca1052 --- /dev/null +++ b/libjava/classpath/gnu/java/nio/charset/iconv/IconvProvider.java @@ -0,0 +1,110 @@ +/* IconvProvider.java -- + Copyright (C) 2005, 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.nio.charset.iconv; + +import java.nio.charset.Charset; +import java.nio.charset.spi.CharsetProvider; +import java.util.Iterator; +import java.util.Vector; + +/** + * Charset provider wrapping iconv. + * + * Note: This class is a privileged class, because it can be instantiated without + * requiring the RuntimePermission("charsetProvider"). There is a check in + * java.nio.charset.spi.CharsetProvider to skip the security check if the provider + * is an instance of this class. + * + * @author Sven de Marothy + */ +public final class IconvProvider extends CharsetProvider +{ + private static IconvProvider singleton; + + // Declaring the construtor public may violate the use of singleton. + // But it must be public so that an instance of this class can be + // created by Class.newInstance(), which is the case when this provider is + // defined in META-INF/services/java.nio.charset.spi.CharsetProvider. + public IconvProvider() + { + IconvMetaData.setup(); + } + + public Iterator charsets() + { + Vector names = IconvMetaData.charsets(); + Vector charsets = new Vector(); + for (int i = 0; i < names.size(); i++) + { + try + { + charsets.add(new IconvCharset((IconvMetaData) names.elementAt(i))); + } + catch (IllegalArgumentException e) + { + } + } + return charsets.iterator(); + } + + public Charset charsetForName(String charsetName) + { + try + { + IconvMetaData info = IconvMetaData.get(charsetName); + + // Try anyway if the set isn't found. + if (info == null) + info = new IconvMetaData(charsetName, 2.0f, 2.0f, 2.0f, 2.0f, + new String[] { }, charsetName); + return new IconvCharset(info); + } + catch (IllegalArgumentException e) + { + return null; + } + } + + public static synchronized IconvProvider provider() + { + if (singleton == null) + singleton = new IconvProvider(); + return singleton; + } +} |