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.cloudstack.api.command.admin.direct.download;
  
  import com.cloud.exception.ConcurrentOperationException;
  import com.cloud.exception.InsufficientCapacityException;
  import com.cloud.exception.NetworkRuleConflictException;
  import com.cloud.exception.ResourceAllocationException;
  import com.cloud.exception.ResourceUnavailableException;
  import org.apache.cloudstack.acl.RoleType;
  import org.apache.cloudstack.api.APICommand;
  import org.apache.cloudstack.api.ApiConstants;
  import org.apache.cloudstack.api.ApiErrorCode;
  import org.apache.cloudstack.api.BaseCmd;
  import org.apache.cloudstack.api.Parameter;
  import org.apache.cloudstack.api.ServerApiException;
  import org.apache.cloudstack.api.response.DirectDownloadCertificateResponse;
  import org.apache.cloudstack.api.response.HostResponse;
  import org.apache.cloudstack.api.response.ListResponse;
  import org.apache.cloudstack.api.response.DirectDownloadCertificateHostStatusResponse;
  import org.apache.cloudstack.api.response.ZoneResponse;
  import org.apache.cloudstack.context.CallContext;
  import org.apache.cloudstack.direct.download.DirectDownloadCertificate;
  import org.apache.cloudstack.direct.download.DirectDownloadManager;
  import org.apache.cloudstack.direct.download.DirectDownloadManager.HostCertificateStatus;
  import org.apache.commons.lang3.ObjectUtils;
  import org.apache.commons.lang3.StringUtils;
  
  import javax.inject.Inject;
  import java.util.ArrayList;
  import java.util.List;
  
  @APICommand(name = "revokeTemplateDirectDownloadCertificate",
          description = "Revoke a direct download certificate from hosts in a zone",
          responseObject = DirectDownloadCertificateHostStatusResponse.class,
          since = "4.13",
          authorized = {RoleType.Admin})
  public class RevokeTemplateDirectDownloadCertificateCmd extends BaseCmd {
  
      @Inject
      DirectDownloadManager directDownloadManager;
  
  
      @Parameter(name = ApiConstants.ID, type = CommandType.UUID,
              entityType = DirectDownloadCertificateResponse.class,
              description = "id of the certificate")
      private Long certificateId;
  
      @Parameter(name = ApiConstants.NAME, type = BaseCmd.CommandType.STRING,
              description = "(optional) alias of the SSL certificate")
      private String certificateAlias;
  
      @Parameter(name = ApiConstants.HYPERVISOR, type = BaseCmd.CommandType.STRING,
              description = "(optional) hypervisor type")
      private String hypervisor;
  
      @Parameter(name = ApiConstants.ZONE_ID, type = CommandType.UUID, entityType = ZoneResponse.class,
              description = "(optional) zone to revoke certificate", required = true)
      private Long zoneId;
  
      @Parameter(name = ApiConstants.HOST_ID, type = CommandType.UUID, entityType = HostResponse.class,
              description = "(optional) the host ID to revoke certificate")
      private Long hostId;
  
      private void createResponse(final List<HostCertificateStatus> hostsRevokeStatusList) {
          final ListResponse<DirectDownloadCertificateHostStatusResponse> response = new ListResponse<>();
          final List<DirectDownloadCertificateHostStatusResponse> responses = new ArrayList<>();
          for (final HostCertificateStatus status : hostsRevokeStatusList) {
              if (status == null) {
                  continue;
              }
              DirectDownloadCertificateHostStatusResponse revokeResponse =
                      _responseGenerator.createDirectDownloadCertificateHostStatusResponse(status);
              responses.add(revokeResponse);
          }
          response.setResponses(responses);
          response.setResponseName(getCommandName());
          setResponseObject(response);
      }
  
      private void validateParameters() {
          if (ObjectUtils.allNull(certificateId, certificateAlias, hypervisor) ||
                  certificateId == null && !ObjectUtils.allNotNull(certificateAlias, hypervisor)) {
              throw new ServerApiException(ApiErrorCode.PARAM_ERROR, "Please specify the hypervisor and the" +
                      "certificate name to revoke or the certificate ID");
          }
          if (StringUtils.isNotBlank(hypervisor) && !hypervisor.equalsIgnoreCase("kvm")) {
              throw new ServerApiException(ApiErrorCode.PARAM_ERROR, "Currently supporting KVM hosts only");
          }
      }
  
      @Override
      public void execute() throws ResourceUnavailableException, InsufficientCapacityException, ServerApiException, ConcurrentOperationException, ResourceAllocationException, NetworkRuleConflictException {
          validateParameters();
          try {
              DirectDownloadCertificate certificate = directDownloadManager.findDirectDownloadCertificateByIdOrHypervisorAndAlias(certificateId, certificateAlias, hypervisor, zoneId);
              List<HostCertificateStatus> hostsResult = directDownloadManager.revokeCertificate(certificate, zoneId, hostId);
              createResponse(hostsResult);
          } catch (Exception e) {
              throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed revoking certificate: " + e.getMessage());
          }
      }
  
      @Override
      public long getEntityOwnerId() {
          return CallContext.current().getCallingAccount().getId();
      }
  }
  