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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.clustercontroller.core;
import com.yahoo.vdslib.state.Node;
import com.yahoo.vdslib.state.NodeType;
import com.yahoo.vespa.clustercontroller.core.hostinfo.HostInfo;
import com.yahoo.vespa.clustercontroller.core.hostinfo.ResourceUsage;
import java.util.Arrays;
import java.util.LinkedHashSet;
import java.util.Locale;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.stream.Collectors;
import static com.yahoo.vespa.clustercontroller.core.ClusterFixture.storageNode;
public class FeedBlockUtil {
static class NodeAndUsages {
public final int index;
public final Set<UsageDetails> usages;
public NodeAndUsages(int index, Set<UsageDetails> usages) {
this.index = index;
this.usages = usages;
}
}
static class UsageDetails {
public final String type;
public final String name;
public final double usage;
public UsageDetails(String type, String name, double usage) {
this.type = type;
this.name = name;
this.usage = usage;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
UsageDetails that = (UsageDetails) o;
return Double.compare(that.usage, usage) == 0 &&
Objects.equals(type, that.type) &&
Objects.equals(name, that.name);
}
@Override
public int hashCode() {
return Objects.hash(type, name, usage);
}
}
static UsageDetails usage(String type, double usage) {
return new UsageDetails(type, null, usage);
}
static UsageDetails usage(String type, String name, double usage) {
return new UsageDetails(type, name, usage);
}
static Map<String, Double> mapOf(UsageDetails... usages) {
return Arrays.stream(usages).collect(Collectors.toMap(u -> u.type, u -> u.usage));
}
static Set<UsageDetails> setOf(UsageDetails... usages) {
// Preserve input order to make stringification tests deterministic
return Arrays.stream(usages).collect(Collectors.toCollection(LinkedHashSet::new));
}
static NodeAndUsages forNode(int index, UsageDetails... usages) {
return new NodeAndUsages(index, setOf(usages));
}
static String createResourceUsageJson(Set<UsageDetails> usages) {
// We deal only in the finest of manual JSON string building technologies(tm).
String usageInnerJson = usages.stream()
.map(u -> String.format(Locale.US, "\"%s\":{\"usage\": %.3g%s}",
u.type, u.usage,
(u.name != null ? String.format(Locale.US, ",\"name\":\"%s\"", u.name) : "")))
.collect(Collectors.joining(","));
return String.format(Locale.US, "{\"content-node\":{\"resource-usage\":{%s}}}", usageInnerJson);
}
static NodeResourceExhaustion exhaustion(int index, String type) {
return new NodeResourceExhaustion(new Node(NodeType.STORAGE, index), type, new ResourceUsage(0.8, null), 0.7, "foo");
}
static NodeResourceExhaustion exhaustion(int index, String type, double usage) {
return new NodeResourceExhaustion(new Node(NodeType.STORAGE, index), type, new ResourceUsage(usage, null), 0.7, "foo");
}
static Set<NodeResourceExhaustion> setOf(NodeResourceExhaustion... exhaustions) {
return Arrays.stream(exhaustions).collect(Collectors.toCollection(LinkedHashSet::new));
}
static ClusterFixture createFixtureWithReportedUsages(NodeAndUsages... nodeAndUsages) {
var highestIndex = Arrays.stream(nodeAndUsages).mapToInt(u -> u.index).max();
if (highestIndex.isEmpty()) {
throw new IllegalArgumentException("Can't have an empty cluster");
}
var cf = ClusterFixture
.forFlatCluster(highestIndex.getAsInt() + 1)
.assignDummyRpcAddresses()
.bringEntireClusterUp();
for (var nu : nodeAndUsages) {
cf.cluster().getNodeInfo(storageNode(nu.index))
.setHostInfo(HostInfo.createHostInfo(createResourceUsageJson(nu.usages)));
}
return cf;
}
}
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