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.kafka.common.requests;
  
  import org.apache.kafka.common.message.EndTxnRequestData;
  import org.apache.kafka.common.message.EndTxnResponseData;
  import org.apache.kafka.common.protocol.ApiKeys;
  import org.apache.kafka.common.protocol.Errors;
  import org.apache.kafka.common.protocol.Readable;
  
  public class EndTxnRequest extends AbstractRequest {
      public static final short LAST_STABLE_VERSION_BEFORE_TRANSACTION_V2 = 4;
      private final EndTxnRequestData data;
  
      public static class Builder extends AbstractRequest.Builder<EndTxnRequest> {
          public final EndTxnRequestData data;
          public final boolean isTransactionV2Enabled;
  
          public Builder(EndTxnRequestData data, boolean isTransactionV2Enabled) {
              this(data, false, isTransactionV2Enabled);
          }
  
          public Builder(EndTxnRequestData data, boolean enableUnstableLastVersion, boolean isTransactionV2Enabled) {
              super(ApiKeys.END_TXN, enableUnstableLastVersion);
              this.data = data;
              this.isTransactionV2Enabled = isTransactionV2Enabled;
          }
  
          @Override
          public EndTxnRequest build(short version) {
              if (!isTransactionV2Enabled) {
                  version = (short) Math.min(version, LAST_STABLE_VERSION_BEFORE_TRANSACTION_V2);
              }
              return new EndTxnRequest(data, version);
          }
  
          @Override
          public String toString() {
              return data.toString();
          }
      }
  
      private EndTxnRequest(EndTxnRequestData data, short version) {
          super(ApiKeys.END_TXN, version);
          this.data = data;
      }
  
      public TransactionResult result() {
          if (data.committed())
              return TransactionResult.COMMIT;
          else
              return TransactionResult.ABORT;
      }
  
      @Override
      public EndTxnRequestData data() {
          return data;
      }
  
      @Override
      public EndTxnResponse getErrorResponse(int throttleTimeMs, Throwable e) {
          return new EndTxnResponse(new EndTxnResponseData()
                                        .setErrorCode(Errors.forException(e).code())
                                        .setThrottleTimeMs(throttleTimeMs)
          );
      }
  
      public static EndTxnRequest parse(Readable readable, short version) {
          return new EndTxnRequest(new EndTxnRequestData(readable, version), version);
      }
  }
  