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 com.cloud.agent.api.routing;
  
  import com.cloud.agent.api.to.FirewallRuleTO;
  
  import java.util.HashSet;
  import java.util.List;
  import java.util.Set;
  
  /**
   *
   * AccessDetails allow different components to put in information about
   * how to access the components inside the command.
   */
  public class SetFirewallRulesCommand extends NetworkElementCommand {
      FirewallRuleTO[] rules;
  
      protected SetFirewallRulesCommand() {
      }
  
      public SetFirewallRulesCommand(List<FirewallRuleTO> rules) {
          this.rules = rules.toArray(new FirewallRuleTO[rules.size()]);
      }
  
      public FirewallRuleTO[] getRules() {
          return rules;
      }
  
      public String[][] generateFwRules() {
          String[][] result = new String[2][];
          Set<String> toAdd = new HashSet<String>();
  
          for (FirewallRuleTO fwTO : rules) {
              /* example  :  172.16.92.44:tcp:80:80:0.0.0.0/0:,200.16.92.44:tcp:220:220:0.0.0.0/0:,
               *  each entry format      <ip>:protocol:srcport:destport:scidr:
               *  reverted entry format  <ip>:reverted:0:0:0:
               */
              if (fwTO.revoked()) {
                  StringBuilder sb = new StringBuilder();
                  /* This entry is added just to make sure at least there will one entry in the list to get the ipaddress */
                  sb.append(fwTO.getSrcIp()).append(":reverted:0:0:0:0:").append(fwTO.getId()).append(":");
                  String fwRuleEntry = sb.toString();
                  toAdd.add(fwRuleEntry);
                  continue;
              }
  
              List<String> sCidr, dCidr;
              StringBuilder sb = new StringBuilder();
              sb.append(fwTO.getSrcIp()).append(":").append(fwTO.getProtocol()).append(":");
              if ("icmp".compareTo(fwTO.getProtocol()) == 0) {
                  sb.append(fwTO.getIcmpType()).append(":").append(fwTO.getIcmpCode()).append(":");
  
              } else if (fwTO.getStringSrcPortRange() == null)
                  sb.append("0:0").append(":");
              else
                  sb.append(fwTO.getStringSrcPortRange()).append(":");
  
              sCidr = fwTO.getSourceCidrList();
              dCidr = fwTO.getDestCidrList();
              if (sCidr == null || sCidr.isEmpty()) {
                  sb.append("0.0.0.0/0");  //check if this is necessary because we are providing the source cidr by default???
              } else {
                  boolean firstEntry = true;
                  for (String tag : sCidr) {
                      if (!firstEntry)
                          sb.append("-");
                      sb.append(tag);
                      firstEntry = false;
                  }
              }
              sb.append(":");
  
              if(dCidr == null || dCidr.isEmpty()){
                  sb.append("");
              }
              else{
                  boolean firstEntry = true;
                  for(String cidr : dCidr){
                      if(!firstEntry)
                          sb.append("-");
                      sb.append(cidr);
                      firstEntry = false;
                  }
              }
              sb.append(":");
              sb.append(fwTO.getId());
              sb.append(":");
              String fwRuleEntry = sb.toString();
              toAdd.add(fwRuleEntry);
  
          }
          result[0] = toAdd.toArray(new String[toAdd.size()]);
  
          return result;
      }
  }
  