2 * Copyright (c) 2014 Cisco Systems, 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.mdsal.dom.spi.store;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.annotations.Beta;
13 import com.google.common.base.MoreObjects;
14 import com.google.common.base.MoreObjects.ToStringHelper;
15 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
16 import org.eclipse.jdt.annotation.NonNullByDefault;
17 import org.eclipse.jdt.annotation.Nullable;
20 * Abstract DOM Store Transaction.
21 * Convenience super implementation of DOM Store transaction which provides common implementation of
22 * {@link #toString()} and {@link #getIdentifier()}.
23 * It can optionally capture the context where it was allocated.
25 * @param <T> identifier type
29 public abstract class AbstractDOMStoreTransaction<T> implements DOMStoreTransaction {
30 private final @Nullable Throwable debugContext;
31 private final T identifier;
33 protected AbstractDOMStoreTransaction(final T identifier) {
34 this(identifier, false);
37 @SuppressFBWarnings("NP_STORE_INTO_NONNULL_FIELD")
38 protected AbstractDOMStoreTransaction(final T identifier, final boolean debug) {
39 this.identifier = requireNonNull(identifier, "Identifier must not be null.");
40 this.debugContext = debug ? new Throwable().fillInStackTrace() : null;
44 public final T getIdentifier() {
49 * Return the context in which this transaction was allocated.
51 * @return The context in which this transaction was allocated, or null
52 * if the context was not recorded.
54 public final @Nullable Throwable getDebugContext() {
59 public final String toString() {
60 return addToStringAttributes(MoreObjects.toStringHelper(this)).toString();
64 * Add class-specific toString attributes.
66 * @param toStringHelper
67 * ToStringHelper instance
68 * @return ToStringHelper instance which was passed in
70 protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
71 return toStringHelper.add("id", identifier);