org.jzkit.a2j.codec.util.OIDRegConfigurator.java Source code

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Here is the source code for org.jzkit.a2j.codec.util.OIDRegConfigurator.java

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// Title:       OIDRegConfigurator
// @version:    $Id: OIDRegConfigurator.java,v 1.4 2005/02/11 14:49:54 ibbo Exp $
// Copyright:   Copyright (C) 2001 Knowledge Integration Ltd.
// @author:     Ian Ibbotson (ibbo@k-int.com)
// Company:     KI
// Description: 

//
// This program 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 program 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 program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite
// 330, Boston, MA  02111-1307, USA.
// 

package org.jzkit.a2j.codec.util;

import java.util.Properties;
import java.util.Enumeration;
import java.io.StringWriter;
import java.io.InputStream;
import java.lang.reflect.Method;
import org.apache.commons.logging.*;

/**
 *
 * Load the contents of a file into the OID Register
 *
 * @author Ian Ibbotson ( ian.ibbotson@k-int.com )
 * @version $Id: OIDRegConfigurator.java,v 1.4 2005/02/11 14:49:54 ibbo Exp $
 * Copyright:   Copyright (C) 2001, Knowledge Integration Ltd (See the file LICENSE for details.)
 *
 */
public class OIDRegConfigurator {

    private static Log log = LogFactory.getLog(OIDRegConfigurator.class);

    public static void load(OIDRegister reg, String config_file_name) {

        InputStream is = null;
        InputStream defaults_is = null;
        Properties p = null;

        // OIDRegister reg = OIDRegister.getRegister();

        try {
            // read from top of any classpath entry
            is = OIDRegConfigurator.class.getResourceAsStream(config_file_name);
            p = new Properties();

            if (is != null) {
                p.load(is);
            }

            for (Enumeration en = p.keys(); en.hasMoreElements();) {
                String key = (String) en.nextElement();

                try {
                    String oid_name = key.substring(key.indexOf('.'), key.length());

                    // Every entry in the file must have an OID
                    if (key.startsWith("oid")) {
                        String oid_string = p.getProperty("oid" + oid_name);
                        String entry_name = p.getProperty("name" + oid_name);
                        String codec_name = p.getProperty("codec" + oid_name);
                        Object the_codec = null;

                        log.debug("processing " + oid_string + "," + entry_name + "," + codec_name);

                        try {
                            if (codec_name != null) {
                                Class codec_class = Class.forName(codec_name);
                                Method get_codec_method = codec_class.getMethod("getCodec", null);
                                the_codec = get_codec_method.invoke(null, null);
                            }
                        } catch (java.lang.ClassNotFoundException cnfe) {
                            log.error("Unable to find codec class : " + codec_name);
                        }

                        reg.register_oid(new OIDRegisterEntry(oid_name.substring(1, oid_name.length()), oid_string,
                                entry_name, the_codec));
                    }
                } catch (StringIndexOutOfBoundsException sbe) {
                    log.error("Problem loading register", sbe);
                } catch (Exception e) {
                    log.error("Problem loading register", e);
                }
            }
        } catch (Exception e) {
            log.error("Problem loading register", e);
        }
    }
}