BackupRegistrationMessage.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.activemq.artemis.core.protocol.core.impl.wireformat;

import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
import org.apache.activemq.artemis.api.core.TransportConfiguration;
import org.apache.activemq.artemis.core.protocol.core.impl.PacketImpl;

/**
 * Registers a given backup-server as the replicating backup of a live server (i.e. a regular
 * ActiveMQ).
 * <p>
 * If it succeeds the backup will start synchronization of its state with the new backup node, and
 * replicating any new data. If it fails the backup server will receive a message indicating
 * failure, and should shutdown.
 *
 * @see BackupReplicationStartFailedMessage
 */
public final class BackupRegistrationMessage extends PacketImpl {

   private TransportConfiguration connector;
   private String clusterUser;
   private String clusterPassword;
   private boolean backupWantsFailBack;

   public BackupRegistrationMessage(TransportConfiguration tc,
                                    String user,
                                    String password,
                                    boolean backupWantsFailBack) {
      this();
      connector = tc;
      clusterUser = user;
      clusterPassword = password;
      this.backupWantsFailBack = backupWantsFailBack;
   }

   public BackupRegistrationMessage() {
      super(BACKUP_REGISTRATION);
   }

   public TransportConfiguration getConnector() {
      return connector;
   }

   @Override
   public void encodeRest(final ActiveMQBuffer buffer) {
      buffer.writeString(clusterUser);
      buffer.writeString(clusterPassword);
      buffer.writeBoolean(backupWantsFailBack);
      connector.encode(buffer);
   }

   @Override
   public void decodeRest(final ActiveMQBuffer buffer) {
      clusterUser = buffer.readString();
      clusterPassword = buffer.readString();
      backupWantsFailBack = buffer.readBoolean();
      connector = new TransportConfiguration();
      connector.decode(buffer);
   }

   public String getClusterUser() {
      return clusterUser;
   }

   public String getClusterPassword() {
      return clusterPassword;
   }

   public boolean isFailBackRequest() {
      return backupWantsFailBack;
   }

   @Override
   public int hashCode() {
      final int prime = 31;
      int result = super.hashCode();
      result = prime * result + (backupWantsFailBack ? 1231 : 1237);
      result = prime * result + ((clusterPassword == null) ? 0 : clusterPassword.hashCode());
      result = prime * result + ((clusterUser == null) ? 0 : clusterUser.hashCode());
      result = prime * result + ((connector == null) ? 0 : connector.hashCode());
      return result;
   }

   @Override
   public boolean equals(Object obj) {
      if (this == obj)
         return true;
      if (!super.equals(obj))
         return false;
      if (!(obj instanceof BackupRegistrationMessage))
         return false;
      BackupRegistrationMessage other = (BackupRegistrationMessage) obj;
      if (backupWantsFailBack != other.backupWantsFailBack)
         return false;
      if (clusterPassword == null) {
         if (other.clusterPassword != null)
            return false;
      } else if (!clusterPassword.equals(other.clusterPassword))
         return false;
      if (clusterUser == null) {
         if (other.clusterUser != null)
            return false;
      } else if (!clusterUser.equals(other.clusterUser))
         return false;
      if (connector == null) {
         if (other.connector != null)
            return false;
      } else if (!connector.equals(other.connector))
         return false;
      return true;
   }
}