net.ymate.platform.base.impl.DefaultModuleLoader Maven / Gradle / Ivy

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/*
 * Copyright 2007-2107 the original author or authors.
 *
 * 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 net.ymate.platform.base.impl;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;

import net.ymate.platform.base.IModule;
import net.ymate.platform.base.IModuleLoader;
import net.ymate.platform.module.ConfigModule;
import net.ymate.platform.module.JdbcModule;
import net.ymate.platform.module.LogModule;
import net.ymate.platform.module.MongoDBModule;
import net.ymate.platform.module.WebMvcModule;

import org.apache.commons.lang.StringUtils;

/**
 * 
 * DefaultModuleLoader
 * 
 * 
 * 模块加载器接口默认实现类；
 * 
 * 
 * @author 刘镇([email protected])
 * @version 0.0.0
 *          
 *          
 *          
 *          
 *          
 *          
 *          
 *          
 *          
 *          
 *          
 *          版本号 动作 修改人 修改时间
0.0.0 创建类 刘镇 2012-12-23下午6:08:03
 */
public class DefaultModuleLoader implements IModuleLoader {

	protected static Map __DEFAULT_MODULE_LOADER_NAMES = new HashMap();

	static {
		// configuration|logger|jdbc|mongodb|webmvc
		__DEFAULT_MODULE_LOADER_NAMES.put("configuration", ConfigModule.class.getName());
		__DEFAULT_MODULE_LOADER_NAMES.put("logger", LogModule.class.getName());
		__DEFAULT_MODULE_LOADER_NAMES.put("jdbc", JdbcModule.class.getName());
		__DEFAULT_MODULE_LOADER_NAMES.put("mongodb", MongoDBModule.class.getName());
		__DEFAULT_MODULE_LOADER_NAMES.put("webmvc", WebMvcModule.class.getName());
	}

	private List __loadedModules = new ArrayList();

	/* (non-Javadoc)
	 * @see net.ymate.platform.module.base.IModuleLoader#initialize(java.util.Properties)
	 */
	public void initialize(Properties configs) throws Exception {
		String[] _moduleList = StringUtils.split(configs.getProperty("ymp.module_list"), '|');
		if (_moduleList != null && _moduleList.length > 0) {
			for(String _moduleName : _moduleList) {
				String _moduleClassName = configs.getProperty("ymp.modules." + _moduleName);
				if (StringUtils.isBlank(_moduleClassName)) {
					if (__DEFAULT_MODULE_LOADER_NAMES.containsKey(_moduleName)) {
						_moduleClassName = __DEFAULT_MODULE_LOADER_NAMES.get(_moduleName);
					}
				}
				if (StringUtils.isNotBlank(_moduleClassName)) {
					IModule _module = (IModule) Class.forName(_moduleClassName).newInstance();
					_module.initialize(__parseModuleCfg(_moduleName, configs));
					__loadedModules.add(_module);
				}
			}
		}
	}

	/* (non-Javadoc)
	 * @see net.ymate.platform.module.base.IModuleLoader#destroy()
	 */
	public void destroy() throws Exception {
		for (IModule _module : __loadedModules) {
			_module.destroy();
		}
		__loadedModules.clear();
	}

	/**
	 * @param moduleName 模块名称
	 * @param configs 配置参数集合
	 * @return 分析提取模块配置映射
	 */
	private Map __parseModuleCfg(String moduleName, Properties configs) {
		Map _returnValue = new HashMap();
		// 提取模块配置
		for(Object _key : configs.keySet()) {
			String _prefix = "ymp.configs." + moduleName + ".";
			if (StringUtils.startsWith((String) _key, _prefix)) {
				String _cfgKey = StringUtils.substring((String) _key, _prefix.length());
				String _cfgValue = configs.getProperty((String) _key);
				_returnValue.put(_cfgKey, _cfgValue);
			}
		}
		return _returnValue;
	}

}