| // Copyright (C) 2013 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.googlesource.gerrit.plugins.replication; |
| |
| import com.google.common.flogger.FluentLogger; |
| import com.google.gerrit.exceptions.StorageException; |
| import com.google.gerrit.server.events.EventDispatcher; |
| import com.google.gerrit.server.events.RefEvent; |
| import com.google.gerrit.server.permissions.PermissionBackendException; |
| import com.googlesource.gerrit.plugins.replication.ReplicationState.RefPushResult; |
| import com.googlesource.gerrit.plugins.replication.events.RefReplicatedEvent; |
| import com.googlesource.gerrit.plugins.replication.events.RefReplicationDoneEvent; |
| import java.lang.ref.WeakReference; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import org.eclipse.jgit.transport.RemoteRefUpdate; |
| import org.eclipse.jgit.transport.URIish; |
| |
| public interface PushResultProcessing { |
| public static final PushResultProcessing NO_OP = new PushResultProcessing() {}; |
| |
| /** |
| * Invoked when a ref has been replicated to one node. |
| * |
| * @param project the project name |
| * @param ref the ref name |
| * @param uri the URI |
| * @param status the status of the push |
| * @param refStatus the status for the ref |
| */ |
| default void onRefReplicatedToOneNode( |
| String project, |
| String ref, |
| URIish uri, |
| RefPushResult status, |
| RemoteRefUpdate.Status refStatus) {} |
| |
| /** |
| * Invoked when refs have been replicated to all nodes. |
| * |
| * @param project the project name |
| * @param ref the ref name |
| * @param nodesCount the number of nodes |
| */ |
| default void onRefReplicatedToAllNodes(String project, String ref, int nodesCount) {} |
| |
| /** |
| * Invoked when all refs have been replicated to all nodes. |
| * |
| * @param totalPushTasksCount total number of push tasks |
| */ |
| default void onAllRefsReplicatedToAllNodes(int totalPushTasksCount) {} |
| |
| /** |
| * Write message to standard out. |
| * |
| * @param message message text. |
| */ |
| default void writeStdOut(String message) {} |
| |
| /** |
| * Write message to standard error. |
| * |
| * @param message message text. |
| */ |
| default void writeStdErr(String message) {} |
| |
| static String resolveNodeName(URIish uri) { |
| StringBuilder sb = new StringBuilder(); |
| if (uri.isRemote()) { |
| sb.append(uri.getHost()); |
| if (uri.getPort() != -1) { |
| sb.append(":"); |
| sb.append(uri.getPort()); |
| } |
| } else { |
| sb.append(uri.getPath()); |
| } |
| return sb.toString(); |
| } |
| |
| public static class CommandProcessing implements PushResultProcessing { |
| private WeakReference<StartCommand> sshCommand; |
| private AtomicBoolean hasError = new AtomicBoolean(); |
| |
| CommandProcessing(StartCommand sshCommand) { |
| this.sshCommand = new WeakReference<>(sshCommand); |
| } |
| |
| @Override |
| public void onRefReplicatedToOneNode( |
| String project, |
| String ref, |
| URIish uri, |
| RefPushResult status, |
| RemoteRefUpdate.Status refStatus) { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("Replicate "); |
| sb.append(project); |
| sb.append(" refs "); |
| sb.append(ref); |
| sb.append(" to "); |
| sb.append(resolveNodeName(uri)); |
| sb.append(", "); |
| switch (status) { |
| case SUCCEEDED: |
| sb.append("Succeeded!"); |
| break; |
| case FAILED: |
| sb.append("FAILED!"); |
| hasError.compareAndSet(false, true); |
| break; |
| case NOT_ATTEMPTED: |
| sb.append("NOT ATTEMPTED!"); |
| break; |
| default: |
| sb.append("UNKNOWN RESULT!"); |
| break; |
| } |
| sb.append(" ("); |
| sb.append(refStatus == null ? "unknown" : refStatus.toString()); |
| sb.append(")"); |
| writeStdOut(sb.toString()); |
| } |
| |
| @Override |
| public void onRefReplicatedToAllNodes(String project, String ref, int nodesCount) { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("Replication of "); |
| sb.append(project); |
| sb.append(" ref "); |
| sb.append(ref); |
| sb.append(" completed to "); |
| sb.append(nodesCount); |
| sb.append(" nodes, "); |
| writeStdOut(sb.toString()); |
| } |
| |
| @Override |
| public void onAllRefsReplicatedToAllNodes(int totalPushTasksCount) { |
| if (totalPushTasksCount == 0) { |
| return; |
| } |
| writeStdOut("----------------------------------------------"); |
| if (hasError.get()) { |
| writeStdOut("Replication completed with some errors!"); |
| } else { |
| writeStdOut("Replication completed successfully!"); |
| } |
| } |
| |
| @Override |
| public void writeStdOut(String message) { |
| StartCommand command = sshCommand.get(); |
| if (command != null) { |
| command.writeStdOutSync(message); |
| } |
| } |
| |
| @Override |
| public void writeStdErr(String message) { |
| StartCommand command = sshCommand.get(); |
| if (command != null) { |
| command.writeStdErrSync(message); |
| } |
| } |
| } |
| |
| public static class GitUpdateProcessing implements PushResultProcessing { |
| private static final FluentLogger logger = FluentLogger.forEnclosingClass(); |
| |
| private final EventDispatcher dispatcher; |
| |
| public GitUpdateProcessing(EventDispatcher dispatcher) { |
| this.dispatcher = dispatcher; |
| } |
| |
| @Override |
| public void onRefReplicatedToOneNode( |
| String project, |
| String ref, |
| URIish uri, |
| RefPushResult status, |
| RemoteRefUpdate.Status refStatus) { |
| postEvent(new RefReplicatedEvent(project, ref, uri, status, refStatus)); |
| } |
| |
| @Override |
| public void onRefReplicatedToAllNodes(String project, String ref, int nodesCount) { |
| postEvent(new RefReplicationDoneEvent(project, ref, nodesCount)); |
| } |
| |
| private void postEvent(RefEvent event) { |
| try { |
| dispatcher.postEvent(event); |
| } catch (StorageException | PermissionBackendException e) { |
| logger.atSevere().withCause(e).log("Cannot post event"); |
| } |
| } |
| } |
| } |