/*
* 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
*
* 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.
*/
/**
* Project : MapleFetion
* Package : net.solosky.maplefetion
* File : FetionConfig.java
* Author : solosky < solosky772@qq.com >
* Created : 2009-11-23
* License : Apache License 2.0
*/
package net.solosky.maplefetion;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import java.util.Properties;
/**
*
* 飞信配置
*
* @author solosky <solosky772@qq.com>
*/
public class FetionConfig
{
private static Properties prop;
private static boolean initialized;
/**
* 初始化，强制初始化
*/
public synchronized static void init()
{
if(!initialized) {
loadDefaultConfig();
loadUserConfig();
initialized = true;
}
}
/**
* 返回配置属性
*/
public static Properties getProperties()
{
return prop;
}
/**
* 返回指定名字的字符串配置
* @param name
* @return
*/
public static String getString(String name)
{
if(prop.getProperty(name)!=null){
return prop.getProperty(name);
}else{
throw new IllegalArgumentException("Config value not found in configs. name="+name);
}
}
/**
* 设置指定名字的字符串配置
* @param name
* @param value
*/
public static void setString(String name, String value)
{
prop.setProperty(name, value);
}
/**
* 返回指定名字的整数配置
* @param name
* @return
*/
public static int getInteger(String name)
{
return Integer.parseInt(getString(name));
}
/**
* 设置指定名字的整数配置
* @param name
* @param value
*/
public static void setInteger(String name, int value)
{
prop.setProperty(name, Integer.toString(value));
}
/**
* 返回指定名字的布尔配置
* @param name
* @return
*/
public static boolean getBoolean(String name)
{
return Boolean.parseBoolean(getString(name));
}
/**
* 设置指定名字的布尔配置
* @param name
* @param value
*/
public static void setBoolean(String name, boolean value)
{
prop.setProperty(name, Boolean.toString(value));
}
/**
* 加载配置文件
* 用户可以手动的加载配置文件，如果用户手动的加载了配置文件，系统将会合并默认配置和用户配置
* @param file
* @throws IOException
* @throws FileNotFoundException
*/
public static void loadConfig(File file) throws FileNotFoundException, IOException
{
Properties userDefinedProperties = new Properties();
userDefinedProperties.load(new FileInputStream(file));
Iterator<Object> it = userDefinedProperties.keySet().iterator();
while(it.hasNext()) {
String key = (String) it.next();
prop.setProperty(key, userDefinedProperties.getProperty(key));
}
}
/**
* 加载默认的配置文件
*/
private static void loadDefaultConfig()
{
//在类的根目录查找默认的系统配置文件，maplefetionDefault.properties
//这个文件定义的所有飞信的配置，如果配置都是基于这个配置文件，因为存在惯性配置，所以不会存在配置不存在的错误
InputStream in = FetionConfig.class.getResourceAsStream("/resources/maplefetion.default.properties");
if(in!=null) {
prop = new Properties();
try {
prop.load(in);
} catch (IOException e) {
throw new IllegalStateException("Error occured when reading maplefetionDefault.properties in classpath.");
}
}else {
throw new IllegalStateException("Cannot find maplefetionDefault.properties in classpath.");
}
}
/**
* 加载用户定义配置，默认存放在程序启动目录
*/
private static void loadUserConfig()
{
File file = new File("maplefetion.properties");
if(file.exists()&&file.canRead()) {
try {
System.out.println("found user specified maplefetion.properties..");
loadConfig(file);
} catch (IOException e) {
//忽略掉
}
}
}
}