Java tutorial
/* * Copyright 2014 Webpagebytes * * Licensed 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 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.webpagebytes.cms.utility; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.InputStream; import java.util.logging.Level; import java.util.logging.Logger; import org.apache.commons.io.IOUtils; public class CmsConfigurationFactory { private static String configPath; private static CmsConfiguration configuration; private static final Object lock = new Object(); private static Logger log = Logger.getLogger(CmsConfigurationFactory.class.getName()); private CmsConfigurationFactory() { }; public static String getConfigPath() { return configPath; } public static void setConfigPath(String path) { configPath = path; } public static CmsConfiguration getConfiguration() { if (configuration == null) { InputStream is = null; synchronized (lock) { try { try { is = new FileInputStream(configPath); } catch (FileNotFoundException e) { is = CmsConfigurationFactory.class.getClassLoader().getResourceAsStream(configPath); } XMLConfigReader reader = new XMLConfigReader(); configuration = reader.readConfiguration(is); } catch (Exception e) { log.log(Level.SEVERE, e.getMessage(), e); return null; } finally { IOUtils.closeQuietly(is); } } } return configuration; } }