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.region.ha.gslb;
  
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  
  import javax.inject.Inject;
  
  
  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.GlobalLoadBalancerResponse;
  import org.apache.cloudstack.api.response.SuccessResponse;
  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.region.ha.GlobalLoadBalancerRule;
  import com.cloud.region.ha.GlobalLoadBalancingRulesService;
  import com.cloud.user.Account;
  
  @APICommand(name = "assignToGlobalLoadBalancerRule",
              description = "Assign load balancer rule or list of load " + "balancer rules to a global load balancer rules.",
              responseObject = SuccessResponse.class,
              requestHasSensitiveInfo = false,
              responseHasSensitiveInfo = false)
  public class AssignToGlobalLoadBalancerRuleCmd extends BaseAsyncCmd {
  
  
  
      /////////////////////////////////////////////////////
      //////////////// API parameters /////////////////////
      /////////////////////////////////////////////////////
  
      @Parameter(name = ApiConstants.ID,
                 type = CommandType.UUID,
                 entityType = GlobalLoadBalancerResponse.class,
                 required = true,
                 description = "the ID of the global load balancer rule")
      private Long id;
  
      @Parameter(name = ApiConstants.LOAD_BALANCER_RULE_LIST,
                 type = CommandType.LIST,
                 collectionType = CommandType.UUID,
                 entityType = FirewallRuleResponse.class,
                 required = true,
                 description = "the list load balancer rules that will be assigned to global load balancer rule")
      private List<Long> loadBalancerRulesIds;
  
      @Parameter(name = ApiConstants.GSLB_LBRULE_WEIGHT_MAP,
                 type = CommandType.MAP,
                 description = "Map of LB rule id's and corresponding weights (between 1-100) in the GSLB rule, if not specified weight of "
                     + "a LB rule is defaulted to 1. Specified as 'gslblbruleweightsmap[0].loadbalancerid=UUID" + "&gslblbruleweightsmap[0].weight=10'",
                 required = false)
      private Map gslbLbRuleWieghtMap;
  
      /////////////////////////////////////////////////////
      /////////////////// Accessors ///////////////////////
      /////////////////////////////////////////////////////
  
      public Long getGlobalLoadBalancerRuleId() {
          return id;
      }
  
      public List<Long> getLoadBalancerRulesIds() {
          return loadBalancerRulesIds;
      }
  
      public Map<Long, Long> getLoadBalancerRuleWeightMap() {
          Map<Long, Long> lbRuleWeightMap = new HashMap<Long, Long>();
  
          if (gslbLbRuleWieghtMap == null || gslbLbRuleWieghtMap.isEmpty()) {
              return null;
          }
  
          Collection lbruleWeightsCollection = gslbLbRuleWieghtMap.values();
          Iterator iter = lbruleWeightsCollection.iterator();
          while (iter.hasNext()) {
              HashMap<String, String> map = (HashMap<String, String>)iter.next();
              Long weight;
              LoadBalancer lbrule = _entityMgr.findByUuid(LoadBalancer.class, map.get("loadbalancerid"));
              if (lbrule == null) {
                  throw new InvalidParameterValueException("Unable to find load balancer rule with ID: " + map.get("loadbalancerid"));
              }
              try {
                  weight = Long.parseLong(map.get("weight"));
                  if (weight < 1 || weight > 100) {
                      throw new InvalidParameterValueException("Invalid weight " + weight + " given for the LB rule id: " + map.get("loadbalancerid"));
                  }
              } catch (NumberFormatException nfe) {
                  throw new InvalidParameterValueException("Unable to translate weight given for the LB rule id: " + map.get("loadbalancerid"));
              }
              lbRuleWeightMap.put(lbrule.getId(), weight);
          }
  
          return lbRuleWeightMap;
      }
  
      /////////////////////////////////////////////////////
      /////////////// API Implementation///////////////////
      /////////////////////////////////////////////////////
  
      @Inject
      public GlobalLoadBalancingRulesService _gslbService;
  
      @Override
      public long getEntityOwnerId() {
          GlobalLoadBalancerRule globalLoadBalancerRule = _entityMgr.findById(GlobalLoadBalancerRule.class, getGlobalLoadBalancerRuleId());
          if (globalLoadBalancerRule == null) {
              return Account.ACCOUNT_ID_SYSTEM; // bad id given, parent this command to SYSTEM so ERROR events are tracked
          }
          return globalLoadBalancerRule.getAccountId();
      }
  
      @Override
      public String getEventType() {
          return EventTypes.EVENT_ASSIGN_TO_GLOBAL_LOAD_BALANCER_RULE;
      }
  
      @Override
      public String getEventDescription() {
          return "assign load balancer rules " + StringUtils.join(getLoadBalancerRulesIds(), ",") + " to global load balancer rule " + getGlobalLoadBalancerRuleId();
      }
  
      @Override
      public void execute() {
          CallContext.current().setEventDetails(
              "Global Load balancer rule Id: " + getGlobalLoadBalancerRuleId() + " VmIds: " + StringUtils.join(getLoadBalancerRulesIds(), ","));
          boolean result = _gslbService.assignToGlobalLoadBalancerRule(this);
          if (result) {
              SuccessResponse response = new SuccessResponse(getCommandName());
              this.setResponseObject(response);
          } else {
              throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to assign global load balancer rule");
          }
      }
  
      @Override
      public String getSyncObjType() {
          return BaseAsyncCmd.gslbSyncObject;
      }
  
      @Override
      public Long getSyncObjId() {
          GlobalLoadBalancerRule gslb = _gslbService.findById(id);
          if (gslb == null) {
              throw new InvalidParameterValueException("Unable to find load balancer rule: " + id);
          }
          return gslb.getId();
      }
  }
  