Added a SSDP Server and Client

src/zutil/network/ssdp/SSDPServiceInfo.java

@@ -0,0 +1,89 @@
+package zutil.network.ssdp;
+
+import java.util.Date;
+import java.util.UUID;
+
+/**
+ * This class contains information about a service from
+ * or through the SSDP protocol
+ * 
+ * @author Ziver
+ */
+public class SSDPServiceInfo {
+	private String location;
+	private String st;
+	private String usn;
+	private long expiration_time;
+	
+	/**
+	 * @param l is the value to set the Location variable
+	 */
+	public void setLocation(String l) {
+		location = l;
+	}
+	
+	/**
+	 * @param st is the value to set the SearchTarget variable
+	 */
+	public void setST(String st) {
+		this.st = st;
+	}	
+
+	/**
+	 * @param usn is the value to set the USN variable
+	 */
+	protected void setUSN(String usn) {
+		this.usn = usn;
+	}
+	
+	/**
+	 * @param time sets the expiration time of values in this object
+	 */
+	protected void setExpirationTime(long time) {
+		expiration_time = time;
+	}
+	
+	/**
+	 * @return The URL to the Service, e.g. "http://192.168.0.1:80/index.html"
+	 */
+	public String getLocation(){
+		return location;
+	}
+	
+	/**
+	 * @return the Search Target, e.g. "upnp:rootdevice"
+	 */
+	public String getSearchTarget(){
+		return st;
+	}
+	
+	/**
+	 * @return the expiration time for the values in this object
+	 */
+	public long getExpirationTime(){
+		return expiration_time;
+	}
+	
+	/**
+	 * @return the USN value, e.g. "uuid:abcdefgh-7dec-11d0-a765-00a0c91e6bf6 "
+	 */
+	public String getUSN(){
+		if( usn==null )
+			usn = genUSN();
+		return usn;
+	}
+	
+	/**
+	 * Generates an unique USN for the service
+	 * 
+	 * @param searchTarget is the service ST name
+	 * @return an unique string that corresponds to the service
+	 */
+	private String genUSN(){
+		return "uuid:" + UUID.nameUUIDFromBytes( (st+location).getBytes() ) +"::"+st;
+	}
+	
+	public String toString(){
+		return "USN: "+usn+"\nLocation: "+location+"\nST: "+st+"\nExpiration-Time: "+new Date(expiration_time);
+	}
+}