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/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

package org.openoffice.xmerge.test;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Properties;

/**
 *  Loads a properties file so that registry knows which plug-ins
 *  it needs to load.
 *
 */
public class ConverterInfoList {

    private static String  defaultPropsFile = "ConverterInfoList.properties";

    private ArrayList<String>  jars;
    private Properties props            = null;


    /**
     *  This constructor loads and reads the default properties file.
     *  The default property file name is:
     *  &quot;ConverterInfoList.properties&quot;.
     *
     *  @throws  IOException  If any I/O error occurs.
     */
    public ConverterInfoList() throws IOException {
        this(defaultPropsFile);
    }

   /**
    *  This constructor loads and reads the properties file.
    *
    *  @param  propsFile  The properties file to load.
    *
    *  @throws  IOException  If any I/O error occurs.
    */
    public ConverterInfoList(String propsFile) throws IOException {

        Class<? extends ConverterInfoList> c                 = this.getClass();
        InputStream is          = c.getResourceAsStream(propsFile);
        BufferedInputStream bis = new BufferedInputStream(is);
        props                   = new Properties();
        props.load(bis);
        bis.close();

        int i              = 1;
        String jarFileName = new String();
        jars               = new ArrayList<String>();

        while ((jarFileName = props.getProperty("jarname" + i)) != null) {
            jars.add(jarFileName);
            i++;
        }
    }


   /**
    *  Returns a <code>Vector</code> containing a list of
    *  <code>String</code> objects.  Each <code>String</code>
    *  describes a plug-in to be loaded into the registry.
    *
    *
    *  @return  A <code>Vector</code> containing a list of
    *           <code>String</code> objects.  Each
    *           <code>String</code> describes a plug-in to be
    *           loaded into the registry.
    */
    public Iterator<String> getJarFileEnum() {

        return jars.iterator();
    }
}