package com.jedis.mq;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

/**
 * 属性配置类
 *
 */
public class Configuration extends Properties {
	private static final long serialVersionUID = 50440463580273222L;
	private static Configuration instance = null;

	public static synchronized Configuration getInstance() {
		if (instance == null) {
			instance = new Configuration();
		}
		return instance;
	}

	public String getProperty(String key, String defaultValue) {
		String val = getProperty(key);
		return (val == null || val.isEmpty()) ? defaultValue : val;
	}

	public String getString(String name, String defaultValue) {
		return this.getProperty(name, defaultValue);
	}

	public int getInt(String name, int defaultValue) {
		String val = this.getProperty(name);
		return (val == null || val.isEmpty()) ? defaultValue : Integer.parseInt(val);
	}

	public long getLong(String name, long defaultValue) {
		String val = this.getProperty(name);
		return (val == null || val.isEmpty()) ? defaultValue : Integer.parseInt(val);
	}

	public float getFloat(String name, float defaultValue) {
		String val = this.getProperty(name);
		return (val == null || val.isEmpty()) ? defaultValue : Float.parseFloat(val);
	}

	public double getDouble(String name, double defaultValue) {
		String val = this.getProperty(name);
		return (val == null || val.isEmpty()) ? defaultValue : Double.parseDouble(val);
	}

	public byte getByte(String name, byte defaultValue) {
		String val = this.getProperty(name);
		return (val == null || val.isEmpty()) ? defaultValue : Byte.parseByte(val);
	}

	public Configuration() {
		InputStream in = ClassLoader.getSystemClassLoader().getResourceAsStream("config.xml");
		try {
			this.loadFromXML(in);
			in.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}