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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.node.admin.maintenance.servicedump;
import com.yahoo.yolean.concurrent.Sleeper;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
import java.util.stream.Collectors;
/**
* @author bjorncs
*/
class ArtifactProducers {
private final Map<String, ArtifactProducer> producers;
private final Map<String, List<ArtifactProducer>> aliases;
private ArtifactProducers(Set<ArtifactProducer> producers,
Map<String, List<Class<? extends ArtifactProducer>>> aliases) {
var producerMap = producers.stream()
.collect(Collectors.toMap(ArtifactProducer::artifactName, Function.identity()));
Map<String, List<ArtifactProducer>> aliasMap = new HashMap<>();
aliases.forEach((alias, mapping) -> {
List<ArtifactProducer> concreteMapping = mapping.stream()
.map(type -> producers.stream()
.filter(p -> p.getClass().equals(type))
.findAny()
.orElseThrow(() -> new IllegalArgumentException("No producer of type " + type)))
.toList();
if (producerMap.containsKey(alias)) {
throw new IllegalStateException("Alias name '" + alias + "' conflicts with producer");
}
aliasMap.put(alias, concreteMapping);
});
this.producers = producerMap;
this.aliases = aliasMap;
}
static ArtifactProducers createDefault(Sleeper sleeper) {
var producers = Set.of(
new PerfReporter(),
new JvmDumper.JavaFlightRecorder(sleeper),
new JvmDumper.HeapDump(),
new JvmDumper.Jmap(),
new JvmDumper.Jstat(),
new JvmDumper.Jstack(),
new PmapReporter(),
new VespaLogDumper(sleeper),
new ZooKeeperSnapshotDumper(),
new ConfigDumper());
var aliases =
Map.of(
"jvm-dump",
List.of(
JvmDumper.HeapDump.class, JvmDumper.Jmap.class, JvmDumper.Jstat.class,
JvmDumper.Jstack.class, VespaLogDumper.class)
);
return new ArtifactProducers(producers, aliases);
}
static ArtifactProducers createCustom(Set<ArtifactProducer> producers,
Map<String, List<Class<? extends ArtifactProducer>>> aliases) {
return new ArtifactProducers(producers, aliases);
}
List<ArtifactProducer> resolve(List<String> requestedArtifacts) {
List<ArtifactProducer> resolved = new ArrayList<>();
for (String artifact : requestedArtifacts) {
if (aliases.containsKey(artifact)) {
aliases.get(artifact).stream()
.filter(p -> !resolved.contains(p))
.forEach(resolved::add);
} else if (producers.containsKey(artifact)) {
ArtifactProducer producer = producers.get(artifact);
if (!resolved.contains(producer)) {
resolved.add(producer);
}
} else {
throw createInvalidArtifactException(artifact);
}
}
return resolved;
}
private IllegalArgumentException createInvalidArtifactException(String artifact) {
String producersString = producers.keySet().stream()
.map(a -> "'" + a + "'")
.sorted()
.collect(Collectors.joining(", ", "[", "]"));
String aliasesString = aliases.entrySet().stream()
.map(e -> String.format(
"'%s': %s",
e.getKey(),
e.getValue().stream()
.map(p -> "'" + p.artifactName() + "'")
.sorted()
.collect(Collectors.joining(", ", "[", "]")))
)
.collect(Collectors.joining(", ", "[", "]"));
String msg = String.format(
"Invalid artifact type '%s'. Valid types are %s and valid aliases are %s",
artifact, producersString, aliasesString);
return new IllegalArgumentException(msg);
}
}
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