mirror of https://github.com/octoleo/plantuml.git
82 lines
2.8 KiB
Java
82 lines
2.8 KiB
Java
/*
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* Copyright 2003-2004, Franz-Josef Elmer, All rights reserved
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details
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* (http://www.gnu.org/copyleft/lesser.html).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package jcckit.util;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.util.Properties;
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/**
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* Implementation of {@link FlatConfigData} based on
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* <tt>java.util.Properties</tt>.
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*
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* @author Franz-Josef Elmer
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*/
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public class PropertiesBasedConfigData extends FlatConfigData {
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private final Properties _properties;
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/**
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* Creates an instance from the specified <tt>.properties</tt> file.
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* @param fileName File name of the <tt>.properties</tt> file relative
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* to the working directory or absolute.
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* @throws IOException if the <tt>.properties</tt> does not exist or could
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* not be read.
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*/
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public PropertiesBasedConfigData(String fileName) throws IOException {
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super(null);
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_properties = new Properties();
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_properties.load(new FileInputStream(fileName));
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}
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/**
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* Creates an instance based on the specified properties.
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* The path is undefined.
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*/
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public PropertiesBasedConfigData(Properties properties) {
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this(properties, null);
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}
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/** Creates an instance based on the specified properties and path. */
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private PropertiesBasedConfigData(Properties properties, String path) {
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super(path);
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_properties = properties;
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}
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/**
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* Returns the value for the specified full key. The call will be delegated
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* to the wrapped <tt>java.util.properties</tt> object.
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* @param fullKey The full key including path. <tt>null</tt> is not allowed.
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* @return the value or <tt>null</tt> if not found.
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*/
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protected String getValue(String fullKey) {
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return _properties.getProperty(fullKey);
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}
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/**
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* Returns a new instance of <tt>PropertiesBasedConfigData</tt>
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* for the specified full path. The wrapped <tt>java.util.Properties</tt>
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* will be the same as of this instance.
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* @param path The full path.
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* @return a new instance.
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*/
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protected ConfigData createConfigData(String path) {
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return new PropertiesBasedConfigData(_properties, path);
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}
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}
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