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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.model.container.component;
import com.yahoo.component.ComponentId;
import com.yahoo.config.model.producer.AnyConfigProducer;
import com.yahoo.config.model.producer.TreeConfigProducer;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* A group of config producers that have a component id.
*
* @author Tony Vaagenes
*/
public class ConfigProducerGroup<CHILD extends AnyConfigProducer> extends TreeConfigProducer<CHILD> {
private final Map<ComponentId, CHILD> producerById = new LinkedHashMap<>();
public ConfigProducerGroup(TreeConfigProducer<? super ConfigProducerGroup> parent, String subId) {
super(parent, subId);
}
public void addComponent(ComponentId id, CHILD producer) {
CHILD existing = producerById.put(id, producer);
if ( existing != null) {
throw new IllegalArgumentException("Both " + producer + " and " + existing + " are configured" +
" with the id '" + id + "'. All components must have a unique id.");
}
addChild(producer);
}
/**
* Removes a component by id
*
* @return the removed component, or null if it was not present
*/
public CHILD removeComponent(ComponentId componentId) {
CHILD component = producerById.remove(componentId);
if (component == null) return null;
removeChild(component);
return component;
}
public Collection<CHILD> getComponents() {
return Collections.unmodifiableCollection(getChildren().values());
}
public <T extends CHILD> Collection<T> getComponents(Class<T> componentClass) {
Collection<T> result = new ArrayList<>();
for (CHILD child: getChildren().values()) {
if (componentClass.isInstance(child)) {
result.add(componentClass.cast(child));
}
}
return Collections.unmodifiableCollection(result);
}
/** Returns a map of all components in this group, with (local) component ID as key. */
public Map<ComponentId, CHILD> getComponentMap() {
return Collections.unmodifiableMap(producerById);
}
}
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