ReplicationPageEventMessage.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.SimpleString;
import org.apache.activemq.artemis.core.protocol.core.impl.PacketImpl;
import org.apache.activemq.artemis.utils.DataConstants;

public class ReplicationPageEventMessage extends PacketImpl {

   private int pageNumber;

   private SimpleString storeName;

   /**
    * True = delete page, False = close page
    */
   private boolean isDelete;

   public ReplicationPageEventMessage() {
      super(PacketImpl.REPLICATION_PAGE_EVENT);
   }

   public ReplicationPageEventMessage(final SimpleString storeName, final int pageNumber, final boolean isDelete) {
      this();
      this.pageNumber = pageNumber;
      this.isDelete = isDelete;
      this.storeName = storeName;
   }

   @Override
   public int expectedEncodeSize() {
      return PACKET_HEADERS_SIZE +
             SimpleString.sizeofString(storeName) + // buffer.writeSimpleString(storeName);
             DataConstants.SIZE_INT + //  buffer.writeInt(pageNumber);
             DataConstants.SIZE_BOOLEAN; // buffer.writeBoolean(isDelete);
   }

   @Override
   public void encodeRest(final ActiveMQBuffer buffer) {
      buffer.writeSimpleString(storeName);
      buffer.writeInt(pageNumber);
      buffer.writeBoolean(isDelete);
   }

   @Override
   public void decodeRest(final ActiveMQBuffer buffer) {
      storeName = buffer.readSimpleString();
      pageNumber = buffer.readInt();
      isDelete = buffer.readBoolean();
   }

   /**
    * @return the pageNumber
    */
   public int getPageNumber() {
      return pageNumber;
   }

   /**
    * @return the storeName
    */
   public SimpleString getStoreName() {
      return storeName;
   }

   /**
    * @return the isDelete
    */
   public boolean isDelete() {
      return isDelete;
   }

   @Override
   public String toString() {
      return ReplicationPageEventMessage.class.getSimpleName() + "(channel=" + channelID + ", isDelete=" + isDelete +
         ", storeName=" + storeName + ", pageNumber=" + pageNumber + ")";
   }

   @Override
   public int hashCode() {
      final int prime = 31;
      int result = super.hashCode();
      result = prime * result + (isDelete ? 1231 : 1237);
      result = prime * result + pageNumber;
      result = prime * result + ((storeName == null) ? 0 : storeName.hashCode());
      return result;
   }

   @Override
   public boolean equals(Object obj) {
      if (this == obj)
         return true;
      if (!super.equals(obj))
         return false;
      if (getClass() != obj.getClass())
         return false;
      ReplicationPageEventMessage other = (ReplicationPageEventMessage) obj;
      if (isDelete != other.isDelete)
         return false;
      if (pageNumber != other.pageNumber)
         return false;
      if (storeName == null) {
         if (other.storeName != null)
            return false;
      } else if (!storeName.equals(other.storeName))
         return false;
      return true;
   }
}