fix协议介绍7-序列号重置

FIX.5.0SP2 Message

SequenceReset [type '4']

The sequence reset message is used by the sending application to reset the incoming sequence number on the opposing side.

实现：

package cs.mina.codec.msg;

import java.util.HashSet;
import java.util.List;
import java.util.Set;

import cs.mina.exception.InValidDataException;

/*
 *@author(huangxiaoping)
 *@date 2013-11-27
 */
public class SequenceResetMsg extends BaseMsg {
  private Tag gapFillFlag=new Tag("123","Boolean",false);
  private Tag newSeqNo=new Tag("36","SeqNum",true);
  
  private Set<String> tagIdsSet=new HashSet<String>();
  
  public SequenceResetMsg(){
    tagIdsSet.add("123");
    tagIdsSet.add("36");
    this.getBodyEntity().getBodyTagList().add(gapFillFlag);
    this.getBodyEntity().getBodyTagList().add(newSeqNo);
  }
  
  @Override
  public void decodeBody() {
    Set<String> already=new HashSet<String>();
    String[] bodyItems=this.body.split(BaseMsg.SOH);
    for(int i=0;i<bodyItems.length;i++){
      String[]tagItems=bodyItems[i].split("=");
      if(tagItems.length!=2){
        throw new InValidDataException("消息格式错误");
      }
      String tagId=tagItems[0];
      if(already.contains(tagId)){
        throw new InValidDataException("消息格式错误");
      }
      already.add(tagId);
      if(this.tagIdsSet.contains(tagId)){
        List<Tag> tagList=this.bodyEntity.getBodyTagList();
        for(int j=0;j<tagList.size();j++){
          Tag tag=tagList.get(j);
          if(tag.getTagId().equals(tagId)){
            tag.setTagValue(tagItems[1]);
            break;
          }
        }
      }else{
        throw new InValidDataException("消息格式错误,"+tagId+"不在消息体内");
      }
    }

  }

  @Override
  public void validate() {
    this.headEntity.validate();
    List<Tag> bodyTagList=this.bodyEntity.getBodyTagList();
    for(int i=0;i<bodyTagList.size();i++){
      bodyTagList.get(i).validate();
    }
    this.tailerEntity.validate();

  }

  public Tag getGapFillFlag() {
    return gapFillFlag;
  }

  public void setGapFillFlag(Tag gapFillFlag) {
    this.gapFillFlag = gapFillFlag;
  }

  public Tag getNewSeqNo() {
    return newSeqNo;
  }

  public void setNewSeqNo(Tag newSeqNo) {
    this.newSeqNo = newSeqNo;
  }

  public Set<String> getTagIdsSet() {
    return tagIdsSet;
  }

  public void setTagIdsSet(Set<String> tagIdsSet) {
    this.tagIdsSet = tagIdsSet;
  }

}