Code in the book-Write your own test

Package Com.fenghao.loadbalancing;import Java.util.arraylist;import Java.util.hashmap;import java.util.Iterator; Import java.util.list;import java.util.map;import java.util.random;import java.util.set;import org.junit.Test;/** * *  <P> load Balancing algorithm simple write </P> * @ClassName: loadTest * @author Feng Hao November 9, 2016 morning 9:12:49 * @see TODO */public class LoadTest {Private final map<string,integer> serverweightmap=new hashmap<string,integer> ();p ublic loadTest () { Serverweightmap.put ("192.168.1.100", 1), Serverweightmap.put ("192.168.1.101", 1); Serverweightmap.put (" 192.168.1.102 ", 4); Serverweightmap.put (" 192.168.1.103 ", 1); Serverweightmap.put (" 192.168.1.104 ", 1); Serverweightmap.put ("192.168.1.105", 3), Serverweightmap.put ("192.168.1.106", 1); Serverweightmap.put (" 192.168.1.107 ", 2); Serverweightmap.put (" 192.168.1.108 ", 1); Serverweightmap.put (" 192.168.1.109 ", 1); Serverweightmap.put ("192.168.1.110", 1);} @Testpublic void Test () {int le=4;//roundrobintest (LE); Randomtest ();} /** * * <p>title:roundrobintest</p> * <p> Polling </p> * @param pos * @return * @author Feng Hao November 9, 2016 PM 7:41:52 */public String Roundrobintest (Integer pos) {map<string,integer> servermap=new hashmap<string,integer> (); Servermap.putall (SERVERWEIGHTMAP); set<string> KeySet = Servermap.keyset (); Arraylist<string> keylist=new arraylist<string> (); Keylist.addall (KeySet); String server=null;synchronized (POS) {if (Pos>=keyset.size ()) {pos=0;} Server=keylist.get (POS);p os++; System.out.println ("\npos is" +pos); System.out.println ("\nserver is" +server); return server;} /** * * <p>Title:RandomTest</p> * <p> Random </p> * @return * @author Feng Hao November 9, 2016 PM 7:49:24 */publ IC String randomtest () {map<string,integer> servermap=new hashmap<string,integer> (); ServerMap.putAll ( SERVERWEIGHTMAP); set<string> KeySet = Servermap.keyset (); Arraylist<string> keylist=new arraylist<string> (); Keylist.addall (KeySet); Random random=new random (); int POS= Random.nextint (Keylist.size ()); System.out.println ("\npos is" +pos); String Server = Keylist.get (POS); System.out.println ("\nserver is" +server); return server;} /** * * <p>Title:HashTest</p> * <p> Source Address hash Method </p> * @author Feng Hao November 10, 2016 morning 8:46:43 */public Str ing hashtest (String remoteip) {map<string,integer> servermap=new hashmap<string,integer> (); Servermap.putall (SERVERWEIGHTMAP); set<string> KeySet = Servermap.keyset (); Arraylist<string> keylist=new arraylist<string> (); Keylist.addall (keySet); int hashcode = Remoteip.hashcode (); int size = Keylist.size (); int pos=hashcode% size; System.out.println ("\npos is" +pos); return Keylist.get (POS);} /** * * <p>Title:weightRoundRobin</p> * <p> weighted Polling </p> * @return * @author Feng Hao November 10, 2016 8:57: */public String weightroundrobin (Integer pos) {map<string,integer> servermap=new Hashmap<string,integer > (); Servermap.putall (SERVERWEIGHTMAP); set<string> KeySet = SERvermap.keyset ();iterator<string> it = Keyset.iterator (); List<string> serverlist=new arraylist<string> (); while (It.hasnext ()) {String server=it.next (); Integer Weight = Servermap.get (server), for (int i = 0; I <weight; i++) {serverlist.add (server);}} String server=null;synchronized (POS) {if (Pos>=serverlist.size ()) {pos=0;} Server=serverlist.get (POS);p os++;} return server;} /** * * <p>Title:WeightRandom</p> * <p> weighted random method </p> * @return * @author Feng Hao November 11, 2016 8:43:33 * /public String weightrandom () {map<string,integer> servermap=new hashmap<string,integer> (); Servermap.putall (SERVERWEIGHTMAP); set<string> KeySet = Servermap.keyset ();iterator<string> it = Keyset.iterator (); List<string> serverlist=new arraylist<string> (); while (It.hasnext ()) {String server = It.next (); Integer Weight = servermap.get (server); for (int i = 0; i < weight; i++) {serverlist.add (server);}} Random random=new random (); int randompos = random.Nextint (Serverlist.size ()); String Server = Serverlist.get (randompos); return server;}}

Code in the book-Write your own test