Java Akka事件消息不是分派或触发另一个事件。总是在第一个事件中触发其他事件未得到调度
我是Akka的新手,我正在尝试触发或发送事件消息给Akka演员,我有3条事件消息,一条一条我正在触发,但为什么只有一个第一个事件被触发 这可能是因为:Java Akka事件消息不是分派或触发另一个事件。总是在第一个事件中触发其他事件未得到调度,java,scala,events,akka,messages,Java,Scala,Events,Akka,Messages,我是Akka的新手,我正在尝试触发或发送事件消息给Akka演员,我有3条事件消息,一条一条我正在触发,但为什么只有一个第一个事件被触发 这可能是因为:receive(receiveEvent)在myEventProcessActor构造函数中调用此方法 但在那之后,我们也在召集其他赛事,但我在这里遗漏了一些东西,为什么它不被分派到其他比赛赛事 我总是在控制台中获得以下输出: [INFO] [03/18/2017 13:35:53.446]... We received the Events ne
receive(receiveEvent)代码>在myEventProcessActor
构造函数中调用此方法
但在那之后,我们也在召集其他赛事,但我在这里遗漏了一些东西,为什么它不被分派到其他比赛赛事
我总是在控制台中获得以下输出:
[INFO] [03/18/2017 13:35:53.446]... We received the Events need to process it
我的预期产出是:
[INFO] [03/18/2017 13:35:53.446] ... We received the Events need to process it
[INFO] [03/18/2017 13:35:53.447]... We are processing Events
[INFO] [03/18/2017 13:35:53.446]... Completed Events processing
上面的控制台输出我已经删除了[default akka.actor.default-dispatcher-4][akka://default/user/EventProcessing]
与…
当我触发以下事件时:
procsssEvents.tell(new EventProcessActor.EventActivity(Events.STSRT, Paths.get("/")), procsssEvents);
procsssEvents.tell(new EventProcessActor.EventActivity(Events.READING_LINE, Paths.get("/")), procsssEvents);
procsssEvents.tell(new ventProcessActor.EventActivity(Events.END_OR,Paths.get("/")), procsssEvents);
下面是我的Acotr类、消息类和pom.xml文件
AkkaActor:
package com.ebc.biz.akka.event.trigger;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import scala.PartialFunction;
import scala.runtime.BoxedUnit;
import akka.actor.AbstractLoggingActor;
import akka.actor.ActorRef;
import akka.actor.ActorSystem;
import akka.actor.ActorSystemImpl;
import akka.actor.Props;
import akka.japi.pf.ReceiveBuilder;
import static com.ebc.biz.akka.event.trigger.EventMessage.Events;
public class EventProcessActor extends AbstractLoggingActor {
public static class EventActivity {
final EventMessage startOfEventMessage;
public EventMessage getStartOfEventMessage() {
return startOfEventMessage;
}
public EventActivity(Events events, Path eventPath) {
startOfEventMessage = new EventMessage(events, eventPath);
}
}
public static class EventReadingActivity {
final EventMessage startOfReadingMessage;
public EventMessage getStartOfReadingMessage() {
return startOfReadingMessage;
}
public EventReadingActivity(Events events, Path eventPath) {
startOfReadingMessage = new EventMessage(events, eventPath);
}
}
public static class EndOfEventActivity {
final EventMessage endOfEventMessage;
public EventMessage getEndOfEventMessage() {
return endOfEventMessage;
}
public EndOfEventActivity(Events events, Path eventPath) {
endOfEventMessage = new EventMessage(Events.END_OR, eventPath);
}
}
private final PartialFunction<Object, BoxedUnit> receiveEvent;
private final PartialFunction<Object, BoxedUnit> startEventsProcessing;
private final PartialFunction<Object, BoxedUnit> completeEventProcessing;
public EventProcessActor() {
receiveEvent = ReceiveBuilder
.match(EventActivity.class, this::onStartEventReceive)
.match(EventReadingActivity.class, this::readEventLine).build();
startEventsProcessing = ReceiveBuilder
.match(EventReadingActivity.class, this::readEventLine)
.match(EndOfEventActivity.class, this::onEndOfEventProcessing)
.build();
completeEventProcessing = ReceiveBuilder.match(
EndOfEventActivity.class, this::onEndOfEventProcessing).build();
receive(receiveEvent);
}
public static Props props() {
return Props.create(EventProcessActor.class);
}
public void onStartEventReceive(EventActivity fileActivity) {
log().info("We received the Events need to process it");
getContext().become(startEventsProcessing);
}
public void readEventLine(EventReadingActivity fileActivity) {
log().info("We are processing Events");
getContext().become(completeEventProcessing);
}
public void onEndOfEventProcessing(EndOfEventActivity fileActivity) {
log().info("Completed Events processing");
}
public static void main(String args[]) throws IOException {
ActorSystem syste = ActorSystemImpl.create();
final ActorRef procsssEvents = syste.actorOf(EventProcessActor.props(),
"Event" + "Processing");
procsssEvents.tell(new EventProcessActor.EventActivity(Events.STSRT,
Paths.get("/")), procsssEvents);
procsssEvents.tell(new EventProcessActor.EventActivity(
Events.READING_LINE, Paths.get("/")), procsssEvents);
procsssEvents.tell(new EventProcessActor.EventActivity(Events.END_OR,
Paths.get("/")), procsssEvents);
System.out.println("Enter to terminate");
System.in.read();
}
}
Pom.xml
<groupId>com.ebc.biz</groupId>
<artifactId>akka.event.trigger</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<akka.version>2.4.9</akka.version>
<maven-dependency-plugin.version>3.0.0</maven-dependency-plugin.version>
<maven.compiler.plugin>3.6.1</maven.compiler.plugin>
<java.compiler.target>1.8</java.compiler.target>
<java.compiler.source>1.8</java.compiler.source>
</properties>
<dependencies>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-actor_2.11</artifactId>
<version>${akka.version}</version>
</dependency>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-http-core_2.11</artifactId>
<version>${akka.version}</version>
</dependency>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-http-experimental_2.11</artifactId>
<version>${akka.version}</version>
</dependency>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-http-jackson-experimental_2.11</artifactId>
<version>${akka.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>${maven-dependency-plugin.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<!-- This will download source so easy to see API and java doc. -->
<artifactId>maven-source-plugin</artifactId>
<executions>
<execution>
<id>attach-sources</id>
<phase>verify</phase>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- Java 8 compiler plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven.compiler.plugin}</version>
<configuration>
<source>${java.compiler.source}</source>
<target>${java.compiler.target}</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
com.ebc.biz
akka.event.trigger
0.0.1-快照
2.4.9
3.0.0
3.6.1
1.8
1.8
com.typesafe.akka
akka-actor_2.11
${akka.version}
com.typesafe.akka
akka-http-core_2.11
${akka.version}
com.typesafe.akka
akka-http-U 2.11
${akka.version}
com.typesafe.akka
akka-http-jackson-2.11
${akka.version}
org.apache.maven.plugins
maven依赖插件
${maven dependency plugin.version}
maven源插件
附加来源
验证
罐子
org.apache.maven.plugins
maven编译器插件
${maven.compiler.plugin}
${java.compiler.source}
${java.compiler.target}
为什么我的信息不能互相发送。我想我错过了什么
提前感谢您提供的任何信息和帮助 编辑:问题是-您正在发送EventActivity
,而actor希望每个设计有另一种类型,因此您应该更新main
:
procsssEvents.tell(new EventProcessActor.EventActivity(Events.STSRT, Paths.get("/")), procsssEvents);
procsssEvents.tell(new EventProcessActor.EventReadingActivity(Events.READING_LINE, Paths.get("/")), procsssEvents);
procsssEvents.tell(new EventProcessActor.EndOfEventActivity(Events.END_OR, Paths.get("/")), procsssEvents);
如果我没有呼叫receive(receiveEvent);在EventProcessActor构造函数中,我得到了异常,我从main方法发送的所有消息都将变成“遇到死信”。只有第一条消息被触发,因为我正在调用“receive(receiveEvent);”这是第一个事件。我试图在调用每一行“tell invocation”之前让线程休眠,但同样的问题是,只有第一个事件被记录或触发。我试着在每次通话前加入Thread.sleep(2000)。没错,问题出在其他地方,我已经更新了答案。
procsssEvents.tell(new EventProcessActor.EventActivity(Events.STSRT, Paths.get("/")), procsssEvents);
procsssEvents.tell(new EventProcessActor.EventReadingActivity(Events.READING_LINE, Paths.get("/")), procsssEvents);
procsssEvents.tell(new EventProcessActor.EndOfEventActivity(Events.END_OR, Paths.get("/")), procsssEvents);