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deprecate pipeline bus v1 #16643

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deprecate pipeline bus v1 #16643

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c51a7d5
retrofit pipeline bus selection tests
yaauie Nov 5, 2024
e18e466
deprecate pipeline bus v1
yaauie Nov 5, 2024
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7 changes: 6 additions & 1 deletion logstash-core/src/main/java/org/logstash/plugins/pipeline/PipelineBus.java
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Original file line number Diff line number Diff line change
Expand Up @@ -19,10 +19,12 @@

package org.logstash.plugins.pipeline;

import co.elastic.logstash.api.DeprecationLogger;
import com.google.common.annotations.VisibleForTesting;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.logstash.ext.JrubyEventExtLibrary;
import org.logstash.log.DefaultDeprecationLogger;

import java.util.Collection;
import java.util.Optional;
Expand All @@ -37,6 +39,7 @@
public interface PipelineBus {

Logger LOGGER = LogManager.getLogger(PipelineBus.class);
DeprecationLogger DEPRECATION_LOGGER = new DefaultDeprecationLogger(LOGGER);

/**
* API-stable entry-point for creating a {@link PipelineBus}
Expand All @@ -45,7 +48,9 @@ public interface PipelineBus {
static PipelineBus create() {
final String pipelineBusImplementation = System.getProperty("logstash.pipelinebus.implementation", "v2");
switch (pipelineBusImplementation) {
case "v1": return new PipelineBusV1();
case "v1":
DEPRECATION_LOGGER.deprecated("The legacy pipeline bus selected with `logstash.pipelinebus.implementation=v1` is deprecated, and will be removed in Logstash 9.0");
return new PipelineBusV1();
case "v2": return new PipelineBusV2();
default:
LOGGER.warn("unknown pipeline-bus implementation: {}", pipelineBusImplementation);
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34 changes: 34 additions & 0 deletions logstash-core/src/test/java/org/logstash/log/LoggingSpyResource.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
package org.logstash.log;

import org.apache.logging.log4j.core.*;
import org.apache.logging.log4j.test.appender.ListAppender;
import org.junit.rules.ExternalResource;

import java.util.List;

public class LoggingSpyResource extends ExternalResource {

private static final String APPENDER_NAME = "spyAppender";

private final Logger loggerToSpyOn;
private final ListAppender appender = new ListAppender(APPENDER_NAME);

public LoggingSpyResource(final org.apache.logging.log4j.Logger loggerToSpyOn) {
this.loggerToSpyOn = (Logger) loggerToSpyOn;
}

@Override
protected void before() throws Throwable {
appender.start();
loggerToSpyOn.addAppender(appender);
}

@Override
protected void after() {
loggerToSpyOn.removeAppender(appender);
}

public List<LogEvent> getLogEvents() {
return List.copyOf(appender.getEvents());
}
}
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