import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import java.util.TreeMap;

/**
 * <p>
 * Title: LoonFramework
 * </p>
 * <p>
 * Description:
 * </p>
 * <p>
 * Copyright: Copyright (c) 2007
 * </p>
 * <p>
 * Company: LoonFramework
 * </p>
 * 
 * @author chenpeng
 * @email：ceponline@yahoo.com.cn
 * @version 0.1
 */
public class SystemInfo {

	public final static String envStr[] = { "unknown OS type",
			"unknown OS version", "unknown OS architecture",
			"unknown JRE version", "unknown JRE vendor" };

	/**
	 * 遍历所有设置
	 * 
	 * @param <K>
	 * @param <V>
	 */
	@SuppressWarnings("unchecked")
	public static <K, V> void systemProperties() {
		Properties p = System.getProperties();
		TreeMap<K, V> map = new TreeMap<K, V>();
		map.putAll((Map<? extends K, ? extends V>) p);
		Iterator itr = map.keySet().iterator();
		while (itr.hasNext()) {
			String key = (String) itr.next();
			String value = (String) map.get(key);
			System.out.println(key + "=" + value);
		}
	}

	/**
	 * sun制造标记
	 * 
	 * @param type
	 * @return
	 */
	public boolean isSun(String type) {
		return type.indexOf("Sun") != -1;
	}

	/**
	 * applet制造标记
	 * 
	 * @param type
	 * @return
	 */
	public boolean isApple(String type) {
		return type.indexOf("Apple") != -1;
	}

	/**
	 * hp制造标记
	 * 
	 * @param type
	 * @return
	 */
	public static boolean isHPUX(String type) {
		return type.indexOf("Hewlett-Packard Company") != -1;
	}

	/**
	 * ibm制造标记
	 * 
	 * @param type
	 * @return
	 */
	public static boolean isIBM(String type) {
		return type.indexOf("IBM") != -1;
	}

	/**
	 * Blackdown制造标记
	 * 
	 * @param type
	 * @return
	 */
	public static boolean isBlackdown(String type) {
		return type.indexOf("Blackdown") != -1;
	}

	/**
	 * bea制造标记
	 * 
	 * @param type
	 * @return
	 */
	public static boolean isBEAWithUnsafeSupport(String type) {
		if (type.indexOf("BEA") != -1) {
			String vmVersion = System.getProperty("java.vm.version");
			if (vmVersion.startsWith("R")) {
				return true;
			}
			String vmInfo = System.getProperty("java.vm.info");
			if (vmInfo != null) {
				return (vmInfo.startsWith("R25.1") || vmInfo
						.startsWith("R25.2"));
			}
		}
		return false;
	}

	void getEnv() {
		// os.name 主机操作系统的名称
		// os.version 主机操作系统的版本
		// os.arch 主机操作系统的体系结构
		// java.version java版本
		// java.vendor java厂商
		String as[] = { "os.name", "os.version", "os.arch", "java.version",
				"java.vendor" };
		for (int i = 0; i < as.length; i++) {
			try {
				envStr[i] = System.getProperty(as[i]);
				System.out.println((as[i] + "=" + ((i == 4) ? envStr[i] + " "
						+ isSun(envStr[i]) : envStr[i])).intern());
			} catch (Exception ex) {
			}
		}

	}

	public static void main(String[] args) {
		new SystemInfo().getEnv();
		System.out.println(" 全部设置 ");
		// 显示所有设置
		systemProperties();
	}

}