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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.component.chain.dependencies.ordering;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.Set;
import java.util.logging.Logger;
import com.yahoo.component.chain.ChainedComponent;
/**
* A set of components providing a given name.
*
* @author Tony Vaagenes
*/
class ComponentNameProvider extends NameProvider {
@SuppressWarnings("rawtypes")
private Set<ComponentNode> nodes = new LinkedHashSet<>();
private Logger logger = Logger.getLogger(getClass().getName());
ComponentNameProvider(String name) {
super(name, 0);
}
protected void addNode(@SuppressWarnings("rawtypes") ComponentNode componentNode) {
if (nodes.add(componentNode))
componentNode.notifyAfter();
}
@Override
protected void handleRemoved(OrderedReadyNodes readyNodes) {
for (Node node: nodes) {
/*
All providers must be run before dependencies are run.
Adding these dependencies just in time improves dot output
for the purpose of finding cycles manually.
*/
for (Node afterThis : nodesAfterThis) {
node.before(afterThis);
}
node.beforeRemoved(readyNodes);
}
}
@Override
int classPriority() {
return 1;
}
@Override
public String toString() {
StringBuilder b=new StringBuilder("components [");
for (@SuppressWarnings("rawtypes")
Iterator<ComponentNode> i=nodes.iterator(); i.hasNext(); ) {
b.append(i.next().getComponent().getId());
if (i.hasNext())
b.append(", ");
}
b.append("]");
return b.toString();
}
}
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