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+// Copyright (C) 2012 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.server.extensions.events;
+
+import com.google.gerrit.extensions.api.changes.NotifyHandling;
+import com.google.gerrit.extensions.common.AccountInfo;
+import com.google.gerrit.extensions.events.GitReferenceUpdatedListener;
+import com.google.gerrit.reviewdb.client.Project;
+import com.google.gerrit.server.account.AccountState;
+import com.google.gerrit.server.plugincontext.PluginSetContext;
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+import org.eclipse.jgit.lib.BatchRefUpdate;
+import org.eclipse.jgit.lib.ObjectId;
+import org.eclipse.jgit.lib.RefUpdate;
+import org.eclipse.jgit.transport.ReceiveCommand;
+
+@Singleton
+public class GitReferenceUpdated {
+ public static final GitReferenceUpdated DISABLED =
+ new GitReferenceUpdated() {
+ @Override
+ public void fire(
+ Project.NameKey project,
+ RefUpdate refUpdate,
+ ReceiveCommand.Type type,
+ AccountState updater) {}
+
+ @Override
+ public void fire(Project.NameKey project, RefUpdate refUpdate, AccountState updater) {}
+
+ @Override
+ public void fire(
+ Project.NameKey project,
+ String ref,
+ ObjectId oldObjectId,
+ ObjectId newObjectId,
+ AccountState updater) {}
+
+ @Override
+ public void fire(Project.NameKey project, ReceiveCommand cmd, AccountState updater) {}
+
+ @Override
+ public void fire(
+ Project.NameKey project, BatchRefUpdate batchRefUpdate, AccountState updater) {}
+ };
+
+ private final PluginSetContext<GitReferenceUpdatedListener> listeners;
+ private final EventUtil util;
+
+ @Inject
+ GitReferenceUpdated(PluginSetContext<GitReferenceUpdatedListener> listeners, EventUtil util) {
+ this.listeners = listeners;
+ this.util = util;
+ }
+
+ private GitReferenceUpdated() {
+ this.listeners = null;
+ this.util = null;
+ }
+
+ public void fire(
+ Project.NameKey project,
+ RefUpdate refUpdate,
+ ReceiveCommand.Type type,
+ AccountState updater) {
+ fire(
+ project,
+ refUpdate.getName(),
+ refUpdate.getOldObjectId(),
+ refUpdate.getNewObjectId(),
+ type,
+ util.accountInfo(updater));
+ }
+
+ public void fire(Project.NameKey project, RefUpdate refUpdate, AccountState updater) {
+ fire(
+ project,
+ refUpdate.getName(),
+ refUpdate.getOldObjectId(),
+ refUpdate.getNewObjectId(),
+ ReceiveCommand.Type.UPDATE,
+ util.accountInfo(updater));
+ }
+
+ public void fire(
+ Project.NameKey project,
+ String ref,
+ ObjectId oldObjectId,
+ ObjectId newObjectId,
+ AccountState updater) {
+ fire(
+ project,
+ ref,
+ oldObjectId,
+ newObjectId,
+ ReceiveCommand.Type.UPDATE,
+ util.accountInfo(updater));
+ }
+
+ public void fire(Project.NameKey project, ReceiveCommand cmd, AccountState updater) {
+ fire(
+ project,
+ cmd.getRefName(),
+ cmd.getOldId(),
+ cmd.getNewId(),
+ cmd.getType(),
+ util.accountInfo(updater));
+ }
+
+ public void fire(Project.NameKey project, BatchRefUpdate batchRefUpdate, AccountState updater) {
+ if (listeners.isEmpty()) {
+ return;
+ }
+ for (ReceiveCommand cmd : batchRefUpdate.getCommands()) {
+ if (cmd.getResult() == ReceiveCommand.Result.OK) {
+ fire(
+ project,
+ cmd.getRefName(),
+ cmd.getOldId(),
+ cmd.getNewId(),
+ cmd.getType(),
+ util.accountInfo(updater));
+ }
+ }
+ }
+
+ private void fire(
+ Project.NameKey project,
+ String ref,
+ ObjectId oldObjectId,
+ ObjectId newObjectId,
+ ReceiveCommand.Type type,
+ AccountInfo updater) {
+ if (listeners.isEmpty()) {
+ return;
+ }
+ ObjectId o = oldObjectId != null ? oldObjectId : ObjectId.zeroId();
+ ObjectId n = newObjectId != null ? newObjectId : ObjectId.zeroId();
+ Event event = new Event(project, ref, o.name(), n.name(), type, updater);
+ listeners.runEach(l -> l.onGitReferenceUpdated(event));
+ }
+
+ public static class Event implements GitReferenceUpdatedListener.Event {
+ private final String projectName;
+ private final String ref;
+ private final String oldObjectId;
+ private final String newObjectId;
+ private final ReceiveCommand.Type type;
+ private final AccountInfo updater;
+
+ Event(
+ Project.NameKey project,
+ String ref,
+ String oldObjectId,
+ String newObjectId,
+ ReceiveCommand.Type type,
+ AccountInfo updater) {
+ this.projectName = project.get();
+ this.ref = ref;
+ this.oldObjectId = oldObjectId;
+ this.newObjectId = newObjectId;
+ this.type = type;
+ this.updater = updater;
+ }
+
+ @Override
+ public String getProjectName() {
+ return projectName;
+ }
+
+ @Override
+ public String getRefName() {
+ return ref;
+ }
+
+ @Override
+ public String getOldObjectId() {
+ return oldObjectId;
+ }
+
+ @Override
+ public String getNewObjectId() {
+ return newObjectId;
+ }
+
+ @Override
+ public boolean isCreate() {
+ return type == ReceiveCommand.Type.CREATE;
+ }
+
+ @Override
+ public boolean isDelete() {
+ return type == ReceiveCommand.Type.DELETE;
+ }
+
+ @Override
+ public boolean isNonFastForward() {
+ return type == ReceiveCommand.Type.UPDATE_NONFASTFORWARD;
+ }
+
+ @Override
+ public AccountInfo getUpdater() {
+ return updater;
+ }
+
+ @Override
+ public String toString() {
+ return String.format(
+ "%s[%s,%s: %s -> %s]",
+ getClass().getSimpleName(), projectName, ref, oldObjectId, newObjectId);
+ }
+
+ @Override
+ public NotifyHandling getNotify() {
+ return NotifyHandling.ALL;
+ }
+ }
+}