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.user.loadbalancer;
  
  import java.util.List;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Collection;
  import java.util.Iterator;
  import java.util.ArrayList;
  
  import com.cloud.vm.VirtualMachine;
  
  import org.apache.cloudstack.api.APICommand;
  import org.apache.cloudstack.api.ApiConstants;
  import org.apache.cloudstack.api.ApiErrorCode;
  import org.apache.cloudstack.api.BaseAsyncCmd;
  import org.apache.cloudstack.api.Parameter;
  import org.apache.cloudstack.api.ServerApiException;
  import org.apache.cloudstack.api.response.FirewallRuleResponse;
  import org.apache.cloudstack.api.response.SuccessResponse;
  import org.apache.cloudstack.api.response.UserVmResponse;
  import org.apache.cloudstack.context.CallContext;
  import org.apache.commons.lang3.StringUtils;
  
  import com.cloud.event.EventTypes;
  import com.cloud.exception.InvalidParameterValueException;
  import com.cloud.network.rules.LoadBalancer;
  import com.cloud.user.Account;
  
  @APICommand(name = "removeFromLoadBalancerRule",
              description = "Removes a virtual machine or a list of virtual machines from a load balancer rule.",
              responseObject = SuccessResponse.class,
              requestHasSensitiveInfo = false,
              responseHasSensitiveInfo = false)
  public class RemoveFromLoadBalancerRuleCmd extends BaseAsyncCmd {
  
  
      /////////////////////////////////////////////////////
      //////////////// API parameters /////////////////////
      /////////////////////////////////////////////////////
  
      @Parameter(name = ApiConstants.ID,
                 type = CommandType.UUID,
                 entityType = FirewallRuleResponse.class,
                 required = true,
                 description = "The ID of the load balancer rule")
      private Long id;
  
      @Parameter(name = ApiConstants.VIRTUAL_MACHINE_IDS,
                 type = CommandType.LIST,
                 collectionType = CommandType.UUID,
                 entityType = UserVmResponse.class,
                 description = "the list of IDs of the virtual machines that are being removed from the load balancer rule (i.e. virtualMachineIds=1,2,3)")
      private List<Long> virtualMachineIds;
  
      @Parameter(name = ApiConstants.VIRTUAL_MACHINE_ID_IP,
              type = CommandType.MAP,
              description = "VM ID and IP map, vmidipmap[0].vmid=1 vmidipmap[0].ip=10.1.1.75",
              since = "4.4")
      private Map vmIdIpMap;
  
      /////////////////////////////////////////////////////
      /////////////////// Accessors ///////////////////////
      /////////////////////////////////////////////////////
  
      public Long getId() {
          return id;
      }
  
      public List<Long> getVirtualMachineIds() {
          return virtualMachineIds;
      }
  
      public Map<Long, String> getVmIdIpMap() {
          return vmIdIpMap;
      }
  
      /////////////////////////////////////////////////////
      /////////////// API Implementation///////////////////
      /////////////////////////////////////////////////////
  
      @Override
      public long getEntityOwnerId() {
          LoadBalancer lb = _entityMgr.findById(LoadBalancer.class, getId());
          if (lb == null) {
              return Account.ACCOUNT_ID_SYSTEM; // bad id given, parent this command to SYSTEM so ERROR events are tracked
          }
          return lb.getAccountId();
      }
  
      @Override
      public String getEventType() {
          return EventTypes.EVENT_REMOVE_FROM_LOAD_BALANCER_RULE;
      }
  
  
      public Map<Long, List<String>> getVmIdIpListMap() {
          Map<Long, List<String>> vmIdIpsMap = new HashMap<Long, List<String>>();
          if (vmIdIpMap != null && !vmIdIpMap.isEmpty()) {
              Collection idIpsCollection = vmIdIpMap.values();
              Iterator iter = idIpsCollection.iterator();
              while (iter.hasNext()) {
                  HashMap<String, String> idIpsMap = (HashMap<String, String>)iter.next();
                  String vmId = idIpsMap.get("vmid");
                  String vmIp = idIpsMap.get("vmip");
  
                  VirtualMachine lbvm = _entityMgr.findByUuid(VirtualMachine.class, vmId);
                  if (lbvm == null) {
                      throw new InvalidParameterValueException("Unable to find virtual machine ID: " + vmId);
                  }
  
                  Long longVmId = lbvm.getId();
  
                  List<String> ipsList = null;
                  if (vmIdIpsMap.containsKey(longVmId)) {
                      ipsList = vmIdIpsMap.get(longVmId);
                  } else {
                      ipsList = new ArrayList<String>();
                  }
                  ipsList.add(vmIp);
                  vmIdIpsMap.put(longVmId, ipsList);
  
              }
          }
  
          return vmIdIpsMap;
      }
  
      @Override
      public String getEventDescription() {
          return "removing instances from load balancer: " + getId() + " (ids: " + StringUtils.join(getVirtualMachineIds(), ",") + ")";
      }
  
      @Override
      public void execute()  {
          CallContext.current().setEventDetails("Load balancer Id: " + getId() + " VmIds: " + StringUtils.join(getVirtualMachineIds(), ","));
          Map<Long, List<String>> vmIdIpsMap = getVmIdIpListMap();
          try {
              boolean result = _lbService.removeFromLoadBalancer(id, virtualMachineIds, vmIdIpsMap, false);
              if (result) {
                  SuccessResponse response = new SuccessResponse(getCommandName());
                  this.setResponseObject(response);
              } else {
                  throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to remove instance from load balancer rule");
              }
          }catch (InvalidParameterValueException ex) {
              throw new ServerApiException(ApiErrorCode.PARAM_ERROR, "Failed to remove instance from load balancer rule");
          }
      }
  
      @Override
      public String getSyncObjType() {
          return BaseAsyncCmd.networkSyncObject;
      }
  
      @Override
      public Long getSyncObjId() {
          LoadBalancer lb = _lbService.findById(id);
          if (lb == null) {
              throw new InvalidParameterValueException("Unable to find load balancer rule: " + id);
          }
          return lb.getNetworkId();
      }
  }
  