package net.spy.digg.parsers;

 import java.io.Serializable;

 import net.spy.digg.Comment;

 import org.w3c.dom.Node;

 /**

  * Comment implementation.

  */

 public class CommentImpl extends EventImpl implements Comment, Serializable {

         private final String comment;

         private final int down;

         private final int up;

         private final Integer replyId;

         private final Integer root;

         private final Integer level;

         CommentImpl(Node n) {

                 super(n);

                 down=Integer.parseInt(BaseParser.getAttr(n, "down"));

                 up=Integer.parseInt(BaseParser.getAttr(n, "up"));

                 replyId=getIntegerAttr(n, "replyto");

                 root=getIntegerAttr(n, "root");

                 level=getIntegerAttr(n, "level");

                 final Node c = n.getFirstChild();

                 assert c.getNodeType() == Node.CDATA_SECTION_NODE

                         : "Expected CDATA, got " + c;

                 comment=c.getNodeValue();

         }

         private Integer getIntegerAttr(Node n, String attr) {

                 final String s=BaseParser.getAttr(n, attr);

                 final Integer rv;

                 if(s != null && s.length() > 0) {

                         rv=new Integer(s);

                 } else {

                         rv=null;

                 }

                 return rv;

         }

         public String getComment() {

                 return comment;

         }

         public int getDiggsDown() {

                 return down;

         }

         public int getDiggsUp() {

                 return up;

         }

         public Integer getReplyId() {

                 return replyId;

         }

         public Integer getLevel() {

                 return level;

         }

         public Integer getRoot() {

                 return root;

         }

         @Override

         public String toString() {

                 return "{Comment by " + getUser() + "}";

         }

 }