?? alphabetfactory.java
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/* * Java SMPP API * Copyright (C) 1998 - 2002 by Oran Kelly * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * A copy of the LGPL can be viewed at http://www.gnu.org/copyleft/lesser.html * Java SMPP API author: orank@users.sf.net * Java SMPP API Homepage: http://smppapi.sourceforge.net/ * $Id: AlphabetFactory.java,v 1.7 2004/10/09 22:02:42 orank Exp $ */package ie.omk.smpp.util;import org.apache.commons.logging.LogFactory;/** Factory class for getting SMS alphabet encoding objects. * The API maintains what it considers a 'default alphabet' for the current VM. * If nothing else is specified, that alphabet will be an instance of the SMS * default alphabet (implemented by the ie.omk.smpp.util.DefaultAlphabetExt * class). Changing the API's default alphabet to another is merely a case of * setting the "smpp.default_alphabet" System property to the name of another * class, which must implement the ie.omk.smpp.util.SMSAlphabet interface. */public final class AlphabetFactory{ private static AlphabetEncoding defaultAlphabet = null; private static final String DEFAULT_ALPHABET_PROPNAME = "smpp.default_alphabet"; private AlphabetFactory() { // AlphabetFactory.Sounds like something off Sesame Street, doesn't it? // ;-) } /** Return the default alphabet for this runtime environment. The default * alphabet is usually the SMS Default alphabet * (ie.omk.smpp.util.DefaultAlphabetExt). This can be altered by setting the * <b>smpp.default_alphabet</b> system property to the name of a concrete * sub-class of ie.omk.smpp.util.SMSAlphabet. For example, if you have * written an alphabet class called 'it.smpp.MyAlphabet', then when running * your smppapi-based application, supply a system property using the -D * switch:<br> * <code>java -cp .:smppapi.jar -Dsmpp.default_alphabet=ie.smpp.MyAlphabet * ...</code> */ public static AlphabetEncoding getDefaultAlphabet() { if (defaultAlphabet == null) init(); return (defaultAlphabet); } private static final void init() { String className = ""; try { className = System.getProperty(DEFAULT_ALPHABET_PROPNAME); if (className != null) { Class alphaClass = Class.forName(className); defaultAlphabet = (AlphabetEncoding)alphaClass.newInstance(); } else { defaultAlphabet = DefaultAlphabetEncoding.getInstance(); } } catch (Exception x) { // Leave the alphabet as DefaultAlphabet LogFactory.getLog(AlphabetFactory.class).warn("Couldn't load default alphabet " + className, x); defaultAlphabet = DefaultAlphabetEncoding.getInstance(); } } /** Get the SMSAlphabet needed for encoding messages in a particular * language. At the moment this ONLY returns an instance of * DefaultAlphabet seeing as that's the only alphabet implemented * currently. * @param lang The ISO code for the language the message is in. */ public static AlphabetEncoding getAlphabet(String lang) { // XXX need to come up with a list of mappings here. return (defaultAlphabet); }}
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