content: /*
   *
   * 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.bookkeeper.proto;
  
  import io.netty.buffer.ByteBuf;
  import io.netty.buffer.Unpooled;
  import org.apache.bookkeeper.client.BKException;
  
  class ReadLacCompletion extends CompletionValue {
      final BookkeeperInternalCallbacks.ReadLacCallback cb;
  
      public ReadLacCompletion(final CompletionKey key,
                               BookkeeperInternalCallbacks.ReadLacCallback originalCallback,
                               final Object ctx, final long ledgerId,
                               PerChannelBookieClient perChannelBookieClient) {
          super("ReadLAC", ctx, ledgerId, BookieProtocol.LAST_ADD_CONFIRMED, perChannelBookieClient);
          this.opLogger = perChannelBookieClient.readLacOpLogger;
          this.timeoutOpLogger = perChannelBookieClient.readLacTimeoutOpLogger;
          this.cb = new BookkeeperInternalCallbacks.ReadLacCallback() {
              @Override
              public void readLacComplete(int rc, long ledgerId,
                                          ByteBuf lacBuffer,
                                          ByteBuf lastEntryBuffer,
                                          Object ctx) {
                  logOpResult(rc);
                  originalCallback.readLacComplete(
                          rc, ledgerId, lacBuffer, lastEntryBuffer, ctx);
                  key.release();
              }
          };
      }
  
      @Override
      public void errorOut() {
          errorOut(BKException.Code.BookieHandleNotAvailableException);
      }
  
      @Override
      public void errorOut(final int rc) {
          errorOutAndRunCallback(
                  () -> cb.readLacComplete(rc, ledgerId, null, null, ctx));
      }
  
      @Override
      public void handleV3Response(BookkeeperProtocol.Response response) {
          BookkeeperProtocol.ReadLacResponse readLacResponse = response.getReadLacResponse();
          ByteBuf lacBuffer = Unpooled.EMPTY_BUFFER;
          ByteBuf lastEntryBuffer = Unpooled.EMPTY_BUFFER;
          BookkeeperProtocol.StatusCode status = response.getStatus() == BookkeeperProtocol.StatusCode.EOK
                  ? readLacResponse.getStatus() : response.getStatus();
  
          if (readLacResponse.hasLacBody()) {
              lacBuffer = Unpooled.wrappedBuffer(readLacResponse.getLacBody().asReadOnlyByteBuffer());
          }
  
          if (readLacResponse.hasLastEntryBody()) {
              lastEntryBuffer = Unpooled.wrappedBuffer(readLacResponse.getLastEntryBody().asReadOnlyByteBuffer());
          }
  
          if (LOG.isDebugEnabled()) {
              logResponse(status, "ledgerId", ledgerId);
          }
  
          int rc = convertStatus(status, BKException.Code.ReadException);
          cb.readLacComplete(rc, ledgerId, lacBuffer.slice(),
                  lastEntryBuffer.slice(), ctx);
      }
  }