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Removing rxjava module from spring cloud stream

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This commit is contained in:
Soby Chacko
2018-02-23 11:59:59 -05:00
parent 3b8b0e78d6
commit 3fb08993ab
7 changed files with 0 additions and 321 deletions
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1
pom.xml
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@@ -102,7 +102,6 @@
<modules>
<module>spring-cloud-stream</module>
<module>spring-cloud-stream-binder-test</module>
<module>spring-cloud-stream-rxjava</module>
<module>spring-cloud-stream-test-support</module>
<module>spring-cloud-stream-test-support-internal</module>
<module>spring-cloud-stream-integration-tests</module>

0
spring-cloud-stream-rxjava/.jdk8
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30
spring-cloud-stream-rxjava/pom.xml
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@@ -1,30 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>spring-cloud-stream-rxjava</artifactId>
<packaging>jar</packaging>
<name>spring-cloud-stream-rxjava</name>
<description>RxJava support for spring cloud stream modules</description>
<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream-parent</artifactId>
<version>2.0.0.BUILD-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-core</artifactId>
</dependency>
<dependency>
<groupId>io.reactivex</groupId>
<artifactId>rxjava</artifactId>
</dependency>
</dependencies>
</project>

47
spring-cloud-stream-rxjava/src/main/java/org/springframework/cloud/stream/annotation/rxjava/EnableRxJavaProcessor.java
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@@ -1,47 +0,0 @@
/*
* Copyright 2015 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.stream.annotation.rxjava;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Processor;
import org.springframework.context.annotation.Import;
/**
* Annotation that identifies the class as RxJava processor module. The class that has
* {@link EnableRxJavaProcessor} annotated is expected to provide a bean that implements
* {@link RxJavaProcessor}.
*
* @author Ilayaperumal Gopinathan
* @deprecated in favor of
* {@link org.springframework.cloud.stream.annotation.StreamListener} with reactive types
*/
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
@EnableBinding(Processor.class)
@Import(RxJavaProcessorConfiguration.class)
@Deprecated
public @interface EnableRxJavaProcessor {
}

33
spring-cloud-stream-rxjava/src/main/java/org/springframework/cloud/stream/annotation/rxjava/RxJavaProcessor.java
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@@ -1,33 +0,0 @@
/*
* Copyright 2015 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.stream.annotation.rxjava;
import rx.Observable;
/**
* Marker interface that RxJava processor module uses to provide the implementation bean.
*
* @author Mark Pollack
* @author Ilayaperumal Gopinathan
* @deprecated in favor of
* {@link org.springframework.cloud.stream.annotation.StreamListener} with reactive types
*/
@Deprecated
public interface RxJavaProcessor<I, O> {
Observable<O> process(Observable<I> input);
}

46
spring-cloud-stream-rxjava/src/main/java/org/springframework/cloud/stream/annotation/rxjava/RxJavaProcessorConfiguration.java
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@@ -1,46 +0,0 @@
/*
* Copyright 2015-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.stream.annotation.rxjava;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.stream.messaging.Processor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.messaging.MessageHandler;
/**
* Configuration class for RxJava module support.
*
* @author Ilayaperumal Gopinathan
* @author Marius Bogoevici
*/
@Configuration
@Deprecated
public class RxJavaProcessorConfiguration {
@Autowired
RxJavaProcessor processor;
@ServiceActivator(inputChannel = Processor.INPUT, phase = "0")
@Bean
public MessageHandler subjectMessageHandler() {
SubjectMessageHandler messageHandler = new SubjectMessageHandler(this.processor);
messageHandler.setOutputChannelName(Processor.OUTPUT);
return messageHandler;
}
}

164
spring-cloud-stream-rxjava/src/main/java/org/springframework/cloud/stream/annotation/rxjava/SubjectMessageHandler.java
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@@ -1,164 +0,0 @@
/*
* Copyright 2015-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.stream.annotation.rxjava;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import rx.Observable;
import rx.Subscription;
import rx.functions.Action0;
import rx.functions.Action1;
import rx.subjects.PublishSubject;
import rx.subjects.SerializedSubject;
import rx.subjects.Subject;
import org.springframework.context.SmartLifecycle;
import org.springframework.integration.handler.AbstractMessageProducingHandler;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;
/**
* Adapts the item at a time delivery of a
* {@link org.springframework.messaging.MessageHandler} by delegating processing to a
* {@link Observable}.
* <p/>
* The outputStream of the processor is used to create a message and send it to the output
* channel. If the input channel and output channel are connected to the
* {@link org.springframework.cloud.stream.binder.Binder}, then data delivered to the
* input stream via a call to onNext is invoked on the dispatcher thread of the binder and
* sending a message to the output channel will involve IO operations on the binder.
* <p/>
* The implementation uses a SerializedSubject. This has the advantage that the state of
* the Observabale can be shared across all the incoming dispatcher threads that are
* invoking onNext. It has the disadvantage that processing and sending to the output
* channel will execute serially on one of the dispatcher threads.
* <p/>
* The use of this handler makes for a very natural first experience when processing data.
* For example given the stream <code></code>http | rxjava-processor | log</code> where
* the <code>rxjava-processor</code> does a <code>buffer(5)</code> and then produces a
* single value. Sending 10 messages to the http source will result in 2 messages in the
* log, no matter how many dispatcher threads are used.
* <p/>
* You can modify what thread the outputStream subscriber, which does the send to the
* output channel, will use by explicitly calling <code>observeOn</code> before returning
* the outputStream from your processor.
* <p/>
*
* All error handling is the responsibility of the processor implementation.
*
* @author Mark Pollack
* @author Ilayaperumal Gopinathan
* @author Marius Bogoevici
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
@Deprecated
public class SubjectMessageHandler extends AbstractMessageProducingHandler implements SmartLifecycle {
private final Log logger = LogFactory.getLog(getClass());
@SuppressWarnings("rawtypes")
private final RxJavaProcessor processor;
private volatile Subject subject;
private volatile Subscription subscription;
private volatile boolean running;
@SuppressWarnings({ "unchecked", "rawtypes" })
public SubjectMessageHandler(RxJavaProcessor processor) {
Assert.notNull(processor, "RxJava processor must not be null.");
this.processor = processor;
}
@Override
public synchronized void start() {
if (!this.running) {
this.subject = new SerializedSubject(PublishSubject.create());
Observable<?> outputStream = this.processor.process(this.subject);
this.subscription = outputStream.subscribe(new Action1<Object>() {
@Override
public void call(Object outputObject) {
if (ClassUtils.isAssignable(Message.class, outputObject.getClass())) {
getOutputChannel().send((Message) outputObject);
}
else {
getOutputChannel().send(MessageBuilder.withPayload(outputObject).build());
}
}
}, new Action1<Throwable>() {
@Override
public void call(Throwable throwable) {
SubjectMessageHandler.this.logger.error(throwable.getMessage(), throwable);
}
}, new Action0() {
@Override
public void call() {
SubjectMessageHandler.this.logger
.info("Subscription close for [" + SubjectMessageHandler.this.subscription + "]");
}
});
this.running = true;
}
}
@Override
public synchronized boolean isRunning() {
return this.running;
}
@Override
public boolean isAutoStartup() {
return false;
}
@Override
public void stop(Runnable callback) {
if (this.running) {
stop();
if (callback != null) {
callback.run();
}
}
}
@Override
public int getPhase() {
return 0;
}
@Override
protected void handleMessageInternal(Message<?> message) throws Exception {
this.subject.onNext(message.getPayload());
}
@Override
public synchronized void stop() {
if (this.running) {
this.subject.onCompleted();
this.subscription.unsubscribe();
this.subscription = null;
this.subject = null;
this.running = false;
}
}
}