2 * Copyright (c) 2017 Red Hat, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.controller.md.sal.trace.closetracker.impl;
10 import java.util.Objects;
11 import javax.annotation.Nullable;
14 * Implementation of {@link CloseTracked} which can be used as a field in
15 * another class which implements {@link CloseTracked} and delegates its methods
18 * <p>This is useful if that class already has another parent class.
19 * If it does not, then it's typically more convenient to just extend AbstractCloseTracked.
21 * @author Michael Vorburger.ch
23 public class CloseTrackedTrait<T extends CloseTracked<T>> implements CloseTracked<T> {
25 private final @Nullable Throwable allocationContext;
26 private final CloseTrackedRegistry<T> closeTrackedRegistry;
28 public CloseTrackedTrait(CloseTrackedRegistry<T> transactionChainRegistry) {
29 if (transactionChainRegistry.isDebugContextEnabled()) {
30 this.allocationContext = new Throwable("allocated at");
32 this.allocationContext = null;
34 this.closeTrackedRegistry = Objects.requireNonNull(transactionChainRegistry, "transactionChainRegistry");
35 this.closeTrackedRegistry.add(this);
39 public StackTraceElement[] getAllocationContextStackTrace() {
40 return allocationContext != null ? allocationContext.getStackTrace() : null;
43 public void removeFromTrackedRegistry() {
44 closeTrackedRegistry.remove(this);