public static void main(String[] args) {
EPServiceProvider epService = EPServiceProviderManager.getDefaultProvider();
EPAdministrator admin = epService.getEPAdministrator();
// Apple定义
Map<String, Object> apple = new HashMap<String, Object>();
apple.put("id", int.class);
apple.put("price", int.class);
// 注册Apple到Esper
admin.getConfiguration().addEventType("Apple", apple);
String epl = "select avg(price) from Apple.win:length_batch(3)";
EPStatement state = admin.createEPL(epl);
state.addListener(new AppleListener());
EPRuntime runtime = epService.getEPRuntime();
Map<String, Object> apple1 = new HashMap<String, Object>();
apple1.put("id", 1);
apple1.put("price", 5);
runtime.sendEvent(apple1, "Apple");
Map<String, Object> apple2 = new HashMap<String, Object>();
apple2.put("id", 2);
apple2.put("price", 2);
runtime.sendEvent(apple2, "Apple");
Map<String, Object> apple3 = new HashMap<String, Object>();
apple3.put("id", 3);
apple3.put("price", 5);
runtime.sendEvent(apple3, "Apple");
}
public synchronized void update(EventBean[] newEvents, EventBean[] oldEvents) {
if (newEvents != null) {
ps = (Product[]) newEvents[0].get("prevwindow(i)");
count = ps.length;
}
if (oldEvents != null) {
for (int i = count - 1; i >= 0; i--) {
Map<String, Object> event = new HashMap<String, Object>();
event.put("p", ps[i]);
runtime.sendEvent(event, "S");
}
int last = ps.length - oldEvents.length;
Product[] temp = new Product[last];
for (int i = 0; i < last; i++) {
temp[i] = ps[i];
}
ps = temp;
User u = new User();
runtime.sendEvent(u);
Map<String, Object> scount = new HashMap<String, Object>();
scount.put("count", count);
runtime.sendEvent(scount, "Scount");
count -= oldEvents.length;
}
}
public void run() {
try {
for (int i = 0; i < 1000; i++) {
runtime.sendEvent(new MyEventA("key1", (int) (Math.random() * 1000000)));
runtime.sendEvent(new MyEventA("key2", (int) (Math.random() * 1000000)));
runtime.sendEvent(new MyEventB("key1", (int) (Math.random() * 1000000)));
runtime.sendEvent(new MyEventB("key2", (int) (Math.random() * 1000000)));
}
} catch (Exception ex) {
this.exception = ex;
}
}
public void update(EventBean[] newData, EventBean[] oldData) {
List<String> rank = new ArrayList<String>();
List<Long> counts = new ArrayList<Long>();
long pickupDate = 0;
long dropoffDate = 0;
long ts = 0;
for (EventBean e : newData) {
CountEvent c = (CountEvent) e.getUnderlying();
rank.add(c.getRouteCode());
counts.add(c.getCount());
if (ts < c.getTs()) {
pickupDate = c.getPickupDate();
dropoffDate = c.getDropoffDate();
ts = c.getTs();
}
}
if (!rank.isEmpty()) {
RankEvent ev = new RankEvent();
ev.setRank(rank);
ev.setCounts(counts);
ev.setDropoffDate(dropoffDate);
ev.setPickupDate(pickupDate);
ev.setTs(ts);
cepRT.sendEvent(ev);
}
}
public void update(EventBean[] newEvents, EventBean[] oldEvents) {
if (newEvents != null) {
long count = (Long) newEvents[0].get("count(*)");
Map<String, Object> acount = new HashMap<String, Object>();
acount.put("count", (int) count);
runtime.sendEvent(acount, "Acount");
}
}
public void update(EventBean[] newData, EventBean[] oldData) {
// numRuns++;
// if(numRuns % 1000 == 0)
// System.out.println("PHONE CALL LISTENER: " + numRuns);
if (!dc.stats.isStarted()) {
dc.stats.start();
StatsHolder.start();
}
Vote v = null;
PhoneCall pc = (PhoneCall) newData[0].getUnderlying();
LOG.debug("exec VoteSP\t" + pc.toParams());
// IF WE'RE USING VOLT SPs
if (dc instanceof VoltDBSPConnector) {
v = ((VoltDBSPConnector) dc).runSP1(pc);
}
// OTHERWISE
else {
boolean exists = dc.realContestant(pc.contestantNumber);
long numVotes = dc.numTimesVoted(pc.phoneNumber);
String state = dc.getState(pc.phoneNumber);
if (!exists) {
dc.stats.addStat(VoterConstants.VOTE_KEY, pc);
dc.closeWorkflow(pc);
return;
}
if (numVotes >= VoterConstants.MAX_VOTES) {
dc.stats.addStat(VoterConstants.VOTE_KEY, pc);
dc.closeWorkflow(pc);
return;
}
v = new Vote(pc, state, System.nanoTime());
dc.insertVote(v);
}
dc.stats.addStat(VoterConstants.VOTE_KEY, pc);
if (v != null) {
v.startTime = System.nanoTime();
EPRuntime cepRT = epService.getEPRuntime();
cepRT.sendEvent(v);
} else {
dc.closeWorkflow(pc);
}
}
public static void main(String[] args) {
EPServiceProvider esProvider = EPServiceProviderManager.getDefaultProvider();
EPAdministrator admin = esProvider.getEPAdministrator();
EPRuntime er = esProvider.getEPRuntime();
Review r1 = new Review();
r1.setReviewId(1);
r1.setComment("r1");
Book b1 = new Book();
b1.setAuthor("b1");
b1.setBookId(1);
b1.setReview(r1);
Book b2 = new Book();
b2.setAuthor("b2");
b2.setBookId(2);
Item i1 = new Item();
i1.setItemId(1);
i1.setProductId(1);
i1.setPrice(1.11);
i1.setAmount(2);
// 添加Bean对象
MediaOrder mo1 = new MediaOrder();
Books bs = new Books();
Items is = new Items();
List<Item> items = new ArrayList<Item>();
List<Book> books = new ArrayList<Book>();
items.add(i1);
books.add(b1);
books.add(b2);
mo1.setOrderId(1);
bs.setBook(books);
is.setItem(items);
mo1.setItems(is);
mo1.setBooks(bs);
String mediaOrder = MediaOrder.class.getName();
String epl = "select * from " + mediaOrder + "[books.book]";
EPStatement stat1 = admin.createEPL(epl);
stat1.addListener(new SelectContainedListener());
er.sendEvent(mo1);
}
private void sendTimer(long timeInMSec) {
CurrentTimeEvent theEvent = new CurrentTimeEvent(timeInMSec);
EPRuntime runtime = epService.getEPRuntime();
runtime.sendEvent(theEvent);
}
public static void main(String[] args) {
EPServiceProvider epService = EPServiceProviderManager.getDefaultProvider();
EPAdministrator admin = epService.getEPAdministrator();
EPRuntime runtime = epService.getEPRuntime();
String SelectEvents = SelectEvents.class.getName();
String epl1 = "create window SelectWindow.win:keepall() as select * from " + SelectEvents;
String epl2 = "insert into SelectWindow select * from " + SelectEvents;
// 注册EPL语句
admin.createEPL(epl1);
admin.createEPL(epl2);
// 事件1
SelectEvents se1 = new SelectEvents("se1", 1);
runtime.sendEvent(se1);
System.out.println("Send SelectEvent 1: " + se1);
// 事件2
SelectEvents se2 = new SelectEvents("se2", 2);
runtime.sendEvent(se2);
System.out.println("Send SelectEvent 2: " + se2);
/* 操作语句
* 1. 查找窗体中的所有事件
* 2. 更新size = 2事件的name = "update1"
* 3. 删除所有size < 2的事件
*/
String select = "select * from SelectWindow";
String update = "update SelectWindow set name='update1' where size = 2";
String delete = "delete from SelectWindow where size < 2";
System.out.println("\nSelect SelectWindow!");
// 类似于数据库的查询操作，返回结果集
EPOnDemandQueryResult selectResult = epService.getEPRuntime().executeQuery(select);
EventBean[] events = selectResult.getArray();
for (EventBean eb : events) {
System.out.println(eb.getUnderlying());
}
// 更新size=2的事件，将name改为'update1'
System.out.println("\nUpdate SelectEvent(size = 2) in SelectWindow!");
EPOnDemandQueryResult updateResult = epService.getEPRuntime().executeQuery(update);
events = updateResult.getArray();
for (EventBean eb : events) {
System.out.println(eb.getUnderlying());
}
System.out.println("\nSelect SelectWindow!");
selectResult = epService.getEPRuntime().executeQuery(select);
events = selectResult.getArray();
for (EventBean eb : events) {
System.out.println(eb.getUnderlying());
}
// 删除size<2的事件
System.out.println("\nDelete SelectEvent(size < 2) in SelectWindow!");
EPOnDemandQueryResult deleteResult = epService.getEPRuntime().executeQuery(delete);
events = deleteResult.getArray();
for (EventBean eb : events) {
System.out.println(eb.getUnderlying());
}
System.out.println("\nSelect SelectWindow!");
selectResult = epService.getEPRuntime().executeQuery(select);
events = selectResult.getArray();
for (EventBean eb : events) {
System.out.println(eb.getUnderlying());
}
}
/** @param args */
public static void main(String[] args) {
EPServiceProvider epService = EPServiceProviderManager.getDefaultProvider();
EPAdministrator admin = epService.getEPAdministrator();
Map<String, Object> mapDef = new HashMap<String, Object>();
mapDef.put("p", Product.class);
Map<String, Object> mapDef1 = new HashMap<String, Object>();
mapDef1.put("count", int.class);
admin.getConfiguration().addEventType("S", mapDef);
admin.getConfiguration().addEventType("Scount", mapDef1);
admin.getConfiguration().addEventType("Acount", mapDef1);
EPRuntime runtime = epService.getEPRuntime();
String product = Product.class.getName();
String close = User.class.getName();
String input = "select irstream *, prevwindow(i) from " + product + ".win:time(5 sec) as i";
String window = "create window ABC.win:keepall() as select * from S";
String output =
"insert into ABC select * from pattern[every a=S -[1]> b=S(b.p.price>=(a.p.price*1.05))]";
String acount = "on " + close + " select and delete count(*) from ABC";
String result = "every b=Acount -> every a=Scount(b.count+1=a.count)";
EPStatement state1 = admin.createEPL(input);
state1.addListener(new InputListener(runtime));
admin.createEPL(window);
admin.createEPL(output);
EPStatement state2 = admin.createEPL(acount);
state2.addListener(new AcountListener(runtime));
EPStatement state3 = admin.createPattern(result);
state3.addListener(new Result3Listener());
Product esb = new Product();
esb.setPrice(1);
esb.setType("esb");
runtime.sendEvent(esb);
Product eos = new Product();
eos.setPrice(2);
eos.setType("eos");
runtime.sendEvent(eos);
Product esb1 = new Product();
esb1.setPrice(3);
esb1.setType("esb");
runtime.sendEvent(esb1);
Product eos1 = new Product();
eos1.setPrice(5);
eos1.setType("eos");
runtime.sendEvent(eos1);
Product esb2 = new Product();
esb2.setPrice(6);
esb2.setType("esb");
runtime.sendEvent(esb2);
Product eos3 = new Product();
eos3.setPrice(7);
eos3.setType("eos");
runtime.sendEvent(eos3);
System.out.println();
}
public static void main(String[] args) {
EPServiceProvider epService = EPServiceProviderManager.getDefaultProvider();
EPAdministrator admin = epService.getEPAdministrator();
EPRuntime runtime = epService.getEPRuntime();
String triggerEvent = OnUpdateTrigger.class.getName();
String updateEvent = OnUpdateEvent.class.getName();
// 创建窗口
String epl1 = "create window OnUpdateWindow.win:keepall() as select * from " + updateEvent;
String epl2 = "insert into OnUpdateWindow select * from " + updateEvent;
/* 触发条件 trigger>0
* 获取更新前数值，initial是关键字，所以不能省略
*/
String epl3 =
"on "
+ triggerEvent
+ "(trigger>0) as out update OnUpdateWindow as ouw set size=out.trigger, price=initial.size where out.trigger<ouw.price";
String epl4 = "on " + triggerEvent + "(trigger=0) select ouw.* from OnUpdateWindow as ouw";
System.out.println("Create Window: " + epl1);
System.out.println("Update Trigger sentence: " + epl3);
System.out.println();
admin.createEPL(epl1);
admin.createEPL(epl2);
EPStatement state3 = admin.createEPL(epl3);
state3.addListener(new OnUpdateWindowListener());
EPStatement state4 = admin.createEPL(epl4);
state4.addListener(new OnUpdateSelectWindowListener());
/* 事件1
* size=1，price=2
*/
OnUpdateEvent oue1 = new OnUpdateEvent("oue1", 1, 2);
runtime.sendEvent(oue1);
System.out.println("Send OnUpdateEvent 1: " + oue1);
/* 事件2
* size=2，price=3
*/
OnUpdateEvent oue2 = new OnUpdateEvent("oue2", 2, 3);
runtime.sendEvent(oue2);
System.out.println("Send OnUpdateEvent 2: " + oue2);
/* 事件3
* size=3，price=4
*/
OnUpdateEvent oue3 = new OnUpdateEvent("oue3", 3, 4);
runtime.sendEvent(oue3);
System.out.println("Send OnUpdateEvent 3: " + oue3);
/*
* 触发1
* trigger = 0
* 对应epl4
* 查看所有事件
*/
OnUpdateTrigger ost1 = new OnUpdateTrigger(0);
System.out.println("\nSend OnUpdateTrigger " + ost1);
runtime.sendEvent(ost1);
/*
* 触发2
* trigger = 2
* 对应epl3
* 只输出out.trigger<ouw.price的事件2、3
* 然后被更新
* 事件2: size = 2, price = 2
* 事件3: size = 2, price = 3
*/
OnUpdateTrigger ost2 = new OnUpdateTrigger(2);
System.out.println("\nSend OnUpdateTrigger " + ost2);
runtime.sendEvent(ost2);
/*
* 触发3
* trigger = 2
* 对应epl4
* 输出所有事件
* 事件1: size = 1, price = 2(没有更新过)
* 事件2: size = 2, price = 2
* 事件3: size = 2, price = 3
*/
OnUpdateTrigger ost3 = new OnUpdateTrigger(0);
System.out.println("\nSend OnUpdateTrigger " + ost3);
runtime.sendEvent(ost3);
}
public static void main(String[] args) {
EPServiceProvider esProvider = EPServiceProviderManager.getDefaultProvider();
EPAdministrator admin = esProvider.getEPAdministrator();
EPRuntime er = esProvider.getEPRuntime();
String limit = LimitEvent.class.getName();
String follow = FollowedEvent.class.getName();
/* 在每次触发完成前最多只保留2个a事件，触发条件为b的size值大于a的age */
String epl = "every a=" + limit + " -[2]> b=" + follow + "(size > a.age)";
System.out.println("EPL: " + epl + "\n");
// 注册EPL语句
EPStatement statement = admin.createPattern(epl);
statement.addListener(new LimitFollowedListener());
System.out.println("First Send!\n");
// 事件1，age = 1
LimitEvent l1 = new LimitEvent(1);
System.out.println("Send Event: " + l1);
er.sendEvent(l1);
// 事件2，age = 2
LimitEvent l2 = new LimitEvent(2);
System.out.println("Send Event: " + l2);
er.sendEvent(l2);
// 事件3，age = 0
LimitEvent l3 = new LimitEvent(0);
System.out.println("Send Event: " + l3);
er.sendEvent(l3);
// 事件4，size = 3
/*
* 满足触发条件，但由于[2]的限制
* 只能有age = 1，age = 2，两个事件
*/
FollowedEvent f1 = new FollowedEvent();
f1.setSize(3);
System.out.println("Send Event: " + f1);
er.sendEvent(f1);
FollowedEvent f2 = new FollowedEvent();
f2.setSize(4);
System.out.println("Send Event: " + f2);
er.sendEvent(f2);
System.out.println();
System.out.println("Second Send!\n");
/*
System.out.println("Send Event: " + l1);
er.sendEvent(l1);
System.out.println("Send Event: " + l2);
er.sendEvent(l2);
*/
/*
* 由于当第一次触发时，[2]已经满足
* 所以当第二次触发时，不用等待直接触发
*/
System.out.println("Send Event: " + l3);
er.sendEvent(l3);
System.out.println("Send Event: " + f1);
er.sendEvent(f1);
}