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// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.provision.os;
import com.google.common.collect.ImmutableSortedMap;
import com.yahoo.component.Version;
import com.yahoo.config.provision.NodeType;
import java.time.Duration;
import java.time.Instant;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
/**
* The OS version change being deployed in a {@link com.yahoo.vespa.hosted.provision.NodeRepository}.
*
* @author mpolden
*/
public class OsVersionChange {
public static final OsVersionChange NONE = new OsVersionChange(Map.of());
private final Map<NodeType, OsVersionTarget> targets;
public OsVersionChange(Map<NodeType, OsVersionTarget> targets) {
this.targets = ImmutableSortedMap.copyOf(Objects.requireNonNull(targets));
}
/** Version targets in this */
public Map<NodeType, OsVersionTarget> targets() {
return targets;
}
/** Returns a copy of this with target for given node type removed */
public OsVersionChange withoutTarget(NodeType nodeType) {
var targets = new HashMap<>(this.targets);
targets.remove(nodeType);
return new OsVersionChange(targets);
}
/** Returns a copy of this with given target added */
public OsVersionChange withTarget(Version version, NodeType nodeType, Duration upgradeBudget) {
var targets = new HashMap<>(this.targets);
targets.compute(nodeType, (key, prevTarget) -> {
Optional<Instant> lastRetiredAt = Optional.ofNullable(prevTarget).flatMap(OsVersionTarget::lastRetiredAt);
return new OsVersionTarget(nodeType, version, upgradeBudget, lastRetiredAt);
});
return new OsVersionChange(targets);
}
/** Returns a copy of this with last retirement for given node type changed */
public OsVersionChange withRetirementAt(Instant instant, NodeType nodeType) {
requireTarget(nodeType);
var targets = new HashMap<>(this.targets);
targets.computeIfPresent(nodeType, (key, target) -> new OsVersionTarget(nodeType, target.version(), target.upgradeBudget(), Optional.of(instant)));
return new OsVersionChange(targets);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
OsVersionChange change = (OsVersionChange) o;
return targets.equals(change.targets);
}
@Override
public int hashCode() {
return Objects.hash(targets);
}
private void requireTarget(NodeType nodeType) {
if (!targets.containsKey(nodeType)) throw new IllegalArgumentException("No target set for " + nodeType);
}
}
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