src/java/netxms-client/src/main/java/org/netxms/client/maps/elements/NetworkMapElement.java

   1 /**
   2  * NetXMS - open source network management system
   3  * Copyright (C) 2003-2010 Victor Kirhenshtein
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 package org.netxms.client.maps.elements;
  20
  21 import org.netxms.base.NXCPMessage;
  22
  23 /**
  24  * Network map element.
  25  *
  26  */
  27 public class NetworkMapElement
  28 {
  29         public static final int MAP_ELEMENT_GENERIC = 0;
  30         public static final int MAP_ELEMENT_OBJECT = 1;
  31         public static final int MAP_ELEMENT_DECORATION = 2;
  32
  33         protected long id;
  34         protected int type;
  35         protected int x;
  36         protected int y;
  37
  38         /**
  39          * Factory method for creating map element from NXCP message.
  40          *
  41          * @param msg NXCP message
  42          * @param baseId base variable ID
  43          * @return map element object
  44          */
  45         public static NetworkMapElement createMapElement(NXCPMessage msg, long baseId)
  46         {
  47                 int type = msg.getVariableAsInteger(baseId + 1);
  48                 switch(type)
  49                 {
  50                         case MAP_ELEMENT_OBJECT:
  51                                 return new NetworkMapObject(msg, baseId);
  52                         case MAP_ELEMENT_DECORATION:
  53                                 return new NetworkMapDecoration(msg, baseId);
  54                         default:
  55                                 return new NetworkMapElement(msg, baseId);
  56                 }
  57         }
  58
  59         /**
  60          * Create element from NXCP message.
  61          *
  62          * @param msg NXCP message
  63          * @param baseId base variable ID
  64          */
  65         protected NetworkMapElement(NXCPMessage msg, long baseId)
  66         {
  67                 id = msg.getVariableAsInt64(baseId);
  68                 type = msg.getVariableAsInteger(baseId + 1);
  69                 x = msg.getVariableAsInteger(baseId + 2);
  70                 y = msg.getVariableAsInteger(baseId + 3);
  71         }
  72
  73         /**
  74          * Create new generic element
  75          */
  76         public NetworkMapElement(long id)
  77         {
  78                 this.id = id;
  79                 type = MAP_ELEMENT_GENERIC;
  80                 x = 0;
  81                 y = 0;
  82         }
  83
  84         /**
  85          * Fill NXCP message with element data
  86          *
  87          * @param msg NXCP message
  88          * @param baseId base variable ID
  89          */
  90         public void fillMessage(NXCPMessage msg, long baseId)
  91         {
  92                 msg.setVariableInt32(baseId, (int)id);
  93                 msg.setVariableInt16(baseId + 1, type);
  94                 msg.setVariableInt32(baseId + 2, x);
  95                 msg.setVariableInt32(baseId + 3, y);
  96         }
  97
  98         /**
  99          * @return the type
 100          */
 101         public int getType()
 102         {
 103                 return type;
 104         }
 105
 106         /**
 107          * @return the x
 108          */
 109         public int getX()
 110         {
 111                 return x;
 112         }
 113
 114         /**
 115          * @return the y
 116          */
 117         public int getY()
 118         {
 119                 return y;
 120         }
 121
 122         /**
 123          * @return the id
 124          */
 125         public long getId()
 126         {
 127                 return id;
 128         }
 129
 130         /* (non-Javadoc)
 131          * @see java.lang.Object#equals(java.lang.Object)
 132          */
 133         @Override
 134         public boolean equals(Object obj)
 135         {
 136                 if (obj instanceof NetworkMapElement)
 137                         return ((NetworkMapElement)obj).id == id;
 138                 return super.equals(obj);
 139         }
 140
 141         /* (non-Javadoc)
 142          * @see java.lang.Object#hashCode()
 143          */
 144         @Override
 145         public int hashCode()
 146         {
 147                 return (int)id;
 148         }
 149 }