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.acl.AccessControlEntry;
  import org.apache.kafka.common.acl.AclBinding;
  import org.apache.kafka.common.acl.AclOperation;
  import org.apache.kafka.common.acl.AclPermissionType;
  import org.apache.kafka.common.errors.UnsupportedVersionException;
  import org.apache.kafka.common.message.CreateAclsRequestData;
  import org.apache.kafka.common.message.CreateAclsRequestData.AclCreation;
  import org.apache.kafka.common.message.CreateAclsResponseData;
  import org.apache.kafka.common.message.CreateAclsResponseData.AclCreationResult;
  import org.apache.kafka.common.protocol.ApiKeys;
  import org.apache.kafka.common.protocol.Readable;
  import org.apache.kafka.common.resource.PatternType;
  import org.apache.kafka.common.resource.ResourcePattern;
  import org.apache.kafka.common.resource.ResourceType;
  
  import java.util.Collections;
  import java.util.List;
  
  public class CreateAclsRequest extends AbstractRequest {
  
      public static class Builder extends AbstractRequest.Builder<CreateAclsRequest> {
          private final CreateAclsRequestData data;
  
          public Builder(CreateAclsRequestData data) {
              super(ApiKeys.CREATE_ACLS);
              this.data = data;
          }
  
          @Override
          public CreateAclsRequest build(short version) {
              return new CreateAclsRequest(data, version);
          }
  
          @Override
          public String toString() {
              return data.toString();
          }
      }
  
      private final CreateAclsRequestData data;
  
      CreateAclsRequest(CreateAclsRequestData data, short version) {
          super(ApiKeys.CREATE_ACLS, version);
          validate(data);
          this.data = data;
      }
  
      public List<AclCreation> aclCreations() {
          return data.creations();
      }
  
      @Override
      public CreateAclsRequestData data() {
          return data;
      }
  
      @Override
      public AbstractResponse getErrorResponse(int throttleTimeMs, Throwable throwable) {
          CreateAclsResponseData.AclCreationResult result = CreateAclsRequest.aclResult(throwable);
          List<CreateAclsResponseData.AclCreationResult> results = Collections.nCopies(data.creations().size(), result);
          return new CreateAclsResponse(new CreateAclsResponseData()
              .setThrottleTimeMs(throttleTimeMs)
              .setResults(results));
      }
  
      public static CreateAclsRequest parse(Readable readable, short version) {
          return new CreateAclsRequest(new CreateAclsRequestData(readable, version), version);
      }
  
      private void validate(CreateAclsRequestData data) {
          if (version() == 0) {
              final boolean unsupported = data.creations().stream().anyMatch(creation ->
                  creation.resourcePatternType() != PatternType.LITERAL.code());
              if (unsupported)
                  throw new UnsupportedVersionException("Version 0 only supports literal resource pattern types");
          }
  
          final boolean unknown = data.creations().stream().anyMatch(creation ->
              creation.resourcePatternType() == PatternType.UNKNOWN.code()
                  || creation.resourceType() == ResourceType.UNKNOWN.code()
                  || creation.permissionType() == AclPermissionType.UNKNOWN.code()
                  || creation.operation() == AclOperation.UNKNOWN.code());
          if (unknown)
              throw new IllegalArgumentException("CreatableAcls contain unknown elements: " + data.creations());
      }
  
      public static AclBinding aclBinding(AclCreation acl) {
          ResourcePattern pattern = new ResourcePattern(
              ResourceType.fromCode(acl.resourceType()),
              acl.resourceName(),
              PatternType.fromCode(acl.resourcePatternType()));
          AccessControlEntry entry = new AccessControlEntry(
              acl.principal(),
              acl.host(),
              AclOperation.fromCode(acl.operation()),
              AclPermissionType.fromCode(acl.permissionType()));
          return new AclBinding(pattern, entry);
      }
  
      public static AclCreation aclCreation(AclBinding binding) {
          return new AclCreation()
              .setHost(binding.entry().host())
              .setOperation(binding.entry().operation().code())
              .setPermissionType(binding.entry().permissionType().code())
              .setPrincipal(binding.entry().principal())
              .setResourceName(binding.pattern().name())
              .setResourceType(binding.pattern().resourceType().code())
              .setResourcePatternType(binding.pattern().patternType().code());
      }
  
      private static AclCreationResult aclResult(Throwable throwable) {
          ApiError apiError = ApiError.fromThrowable(throwable);
          return new AclCreationResult()
              .setErrorCode(apiError.error().code())
              .setErrorMessage(apiError.message());
      }
  }
  