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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.model.container;
import com.yahoo.config.model.builder.xml.XmlHelper;
import com.yahoo.config.model.deploy.DeployState;
import com.yahoo.container.bundle.BundleInstantiationSpecification;
import com.yahoo.container.handler.threadpool.ContainerThreadPool;
import com.yahoo.container.handler.threadpool.ContainerThreadpoolConfig;
import com.yahoo.container.handler.threadpool.ContainerThreadpoolImpl;
import com.yahoo.osgi.provider.model.ComponentModel;
import com.yahoo.vespa.model.container.component.SimpleComponent;
import org.w3c.dom.Element;
import java.util.logging.Level;
/**
* Component definition for a {@link java.util.concurrent.Executor} using {@link ContainerThreadPool}.
*
* @author bjorncs
*/
public abstract class ContainerThreadpool extends SimpleComponent implements ContainerThreadpoolConfig.Producer {
private final String name;
private final UserOptions options;
record UserOptions(Double max, Double min, Double queue){}
protected ContainerThreadpool(DeployState ds, String name, Element parent) {
super(new ComponentModel(
BundleInstantiationSpecification.fromStrings(
"threadpool@" + name,
ContainerThreadpoolImpl.class.getName(),
null)));
this.name = name;
var threadpoolElem = XmlHelper.getOptionalChild(parent, "threadpool").orElse(null);
if (threadpoolElem == null) options = new UserOptions(null, null, null);
else {
// TODO Vespa 9 Remove min-threads, max-threads and queue-size
Double max = null;
Double min = null;
Double queue = null;
var minElem = XmlHelper.getOptionalChild(threadpoolElem, "min-threads").orElse(null);
if (minElem != null) ds.getDeployLogger().logApplicationPackage(Level.WARNING, "For <threadpool>: <min-threads> is deprecated, use <threads> instead");
var maxElem = XmlHelper.getOptionalChild(threadpoolElem, "max-threads").orElse(null);
if (maxElem != null) ds.getDeployLogger().logApplicationPackage(Level.WARNING, "For <threadpool>: <max-threads> is deprecated, use <threads> with 'boost' instead");
var queueElem = XmlHelper.getOptionalChild(threadpoolElem, "queue").orElse(null);
var queueSizeElem = XmlHelper.getOptionalChild(threadpoolElem, "queue-size").orElse(null);
if (queueSizeElem != null) ds.getDeployLogger().logApplicationPackage(Level.WARNING, "For <threadpool>: <queue-size> is deprecated, use <queue> instead");
var threadsElem = XmlHelper.getOptionalChild(threadpoolElem, "threads").orElse(null);
if (threadsElem != null) {
min = parseMultiplier(threadsElem.getTextContent());
max = threadsElem.hasAttribute("boost") ? parseMultiplier(threadsElem.getAttribute("boost")) : min;
} else if (minElem != null) {
min = parseFixed(minElem.getTextContent());
}
if (max == null && maxElem != null) {
max = parseFixed(maxElem.getTextContent());
}
if (queueElem != null) queue = parseMultiplier(queueElem.getTextContent());
else if (queueSizeElem != null) queue = parseFixed(queueSizeElem.getTextContent());
options = new UserOptions(max, min, queue);
}
}
private static Double parseMultiplier(String text) { return -parseFixed(text); }
private static Double parseFixed(String text) { return Double.parseDouble(text); }
// Must be implemented by subclasses to set values that may be overridden by user options.
protected abstract void setDefaultConfigValues(ContainerThreadpoolConfig.Builder builder);
@Override
public void getConfig(ContainerThreadpoolConfig.Builder builder) {
setDefaultConfigValues(builder);
builder.name(this.name);
if (options.max() != null) {
int max = (int) Math.round(options.max());
if (options.max() != 0 && max == 0) max = options.max() > 0 ? 1 : -1;
builder.maxThreads(max);
}
if (options.min() != null) {
int min = (int) Math.round(options.min());
if (options.min() != 0 && min == 0) min = options.min() > 0 ? 1 : -1;
builder.minThreads(min);
}
if (options.queue() != null) {
int queue = (int) Math.round(options.queue());
if (options.queue() != 0 && queue == 0) queue = options.queue() > 0 ? 1 : -1;
builder.queueSize(queue);
}
}
}
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