org.jvnet.hk2.tracing.InhabitantTracing Maven / Gradle / Ivy
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package org.jvnet.hk2.tracing;
import org.jvnet.hk2.component.Inhabitant;
import java.util.ArrayDeque;
import java.util.Deque;
import java.util.Iterator;
/**
* experimental thread local class for tracing inhabitant initialization and module resolution
*
* @author Jerome Dochez
*/
public class InhabitantTracing {
private Deque stack = new ArrayDeque();
public void push(Inhabitant i) {
TracingUtilities.Node parent = (stack.isEmpty()?TracingUtilities.rootNode:stack.peek());
TracingUtilities.Node newNode = new TracingUtilities.Node(i);
parent.children.add(newNode);
stack.push(newNode);
}
public Iterator inOrder() {
return new Iterator() {
final Iterator itr = stack.iterator();
@Override
public boolean hasNext() {
return itr.hasNext();
}
@Override
public Inhabitant next() {
return itr.next().t;
}
@Override
public void remove() {
itr.remove();
}
};
}
public void pop() {
TracingUtilities.Node current = stack.pop();
current.done();
if (stack.isEmpty()) {
TracingThreadLocal.clean();
}
}
}