fix协议介绍2-登入消息

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第三个视频发布：https://edu.youkuaiyun.com/course/detail/27574

详细介绍helm命令，学习helm chart语法，编写helm chart。深入分析各项目源码，学习编写helm插件

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Logon消息结构：

ield or Component	Field Name	FIXML name	Req'd	Comments	Depr.

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Component

StandardHeader

BaseHeader

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MsgType = A

转存失败重新上传取消	98	EncryptMethod		转存失败重新上传取消	(Always unencrypted)
转存失败重新上传取消	108	HeartBtInt		转存失败重新上传取消	Note same value used by both sides
转存失败重新上传取消	95	RawDataLength	@RawDataLength		Required for some authentication methods
转存失败重新上传取消	96	RawData	@RawData		Required for some authentication methods
转存失败重新上传取消	141	ResetSeqNumFlag			Indicates both sides of a FIX session should reset sequence numbers
转存失败重新上传取消	789	NextExpectedMsgSeqNum			Optional, alternative via counterparty bi-lateral agreement message gap detection and recovery approach (see "Logon Message NextExpectedMsgSeqNum Processing" section)
转存失败重新上传取消	383	MaxMessageSize			Can be used to specify the maximum number of bytes supported for messages received

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Component

MsgTypeGrp

MsgTypeGrp

转存失败重新上传取消	464	TestMessageIndicator			Can be used to specify that this FIX session will be sending and receiving "test" vs. "production" messages.
转存失败重新上传取消	553	Username	@Username
转存失败重新上传取消	554	Password	@Password		Note: minimal security exists without transport-level encryption.
转存失败重新上传取消	925	NewPassword	@NewPassword		Specifies a new password for the FIX Logon. The new password is used for subsequent logons.
转存失败重新上传取消	1400	EncryptedPasswordMethod	@EncPwdMethod
转存失败重新上传取消	1401	EncryptedPasswordLen
转存失败重新上传取消	1402	EncryptedPassword	@EncPwd
转存失败重新上传取消	1403	EncryptedNewPasswordLen
转存失败重新上传取消	1404	EncryptedNewPassword	@EncNewPwd		Encrypted new password- encrypted via the method specified in the field EncryptedPasswordMethod(1400)
转存失败重新上传取消	1409	SessionStatus	@SessStat		Session status at time of logon. Field is intended to be used when the logon is sent as an acknowledgement from acceptor of the FIX session.
转存失败重新上传取消	1137	DefaultApplVerID	@DefApplVerID	转存失败重新上传取消	The default version of FIX messages used in this session.
转存失败重新上传取消	1407	DefaultApplExtID	@DfltApplExtID		The default extension pack for FIX messages used in this session
转存失败重新上传取消	1408	DefaultCstmApplVerID			The default custom application version (dictionary) for FIX messages used in this session
转存失败重新上传取消	58	Text	@Txt		Available to provide a response to logon when used as a logon acknowledgement from acceptor back to the logon initiator.
转存失败重新上传取消	354	EncodedTextLen	@EncTxtLen		Must be set if EncodedText field is specified and must immediately precede it.
转存失败重新上传取消	355	EncodedText	@EncTxt		Encoded (non-ASCII characters) representation of the Text field in the encoded format specified via the MessageEncoding field.

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Component

StandardTrailer

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Logon消息故名思议就是登入用的消息.

MsgType=A(35=A);

一个封装的例子：

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 2013-10-25
 */
public class LogonMsg extends BaseMsg {
	private Tag encryptMethod=new Tag("98","int",true);
	private Tag heartBtInt=new Tag("108","int",true);
	private Tag rawDataLength=new Tag("95","Length",false);
	private Tag rawData=new Tag("96","data",false);
	private Tag resetSeqNumFlag=new Tag("141","Boolean",false);
	private Tag nextExpectedMsgSeqNum=new Tag("789","SeqNum",true);
	private Tag maxMessageSize=new Tag("383","Length",false);
	private Tag msgTypeGrpTag=new MsgTypeGrpTag();
	private Tag testMessageIndicator=new Tag("464","Boolean",false);
	private Tag username=new Tag("553","String",false);
	private Tag password=new Tag("554","String",false);
	private Tag defaultApplVerID=new Tag("1137","String",true);
	private Tag text=new Tag("58","String",false);
	private Tag newPassword=new Tag("529","String",false);
	private Tag encryptedPasswordMethod=new Tag("1400","int",false);
	private Tag encryptedPasswordLen=new Tag("1401","Length",false);
	private Tag encryptedPassword=new Tag("1402","data",false);
	private Tag encryptedNewPasswordLen=new Tag("1403","Length",false);
	private Tag encryptedNewPassword=new Tag("1404","data",false);
	private Tag SessionStatus=new Tag("1409","int",false);
	private Tag defaultApplExtID=new Tag("1407","int",false);
	private Tag defaultCstmApplVerID=new Tag("1408","String",false);
	private Tag encodedTextLen=new Tag("354","Length",false);
	private Tag encodedText=new Tag("355","data",false);
	
	public LogonMsg(){
		this.getHeadEntity().getMsgType().setTagValue("A");
		tagIdsSet.add("98");
		tagIdsSet.add("108");
		tagIdsSet.add("95");
		tagIdsSet.add("96");
		tagIdsSet.add("141");
		tagIdsSet.add("789");
		tagIdsSet.add("383");
		tagIdsSet.add("464");
		tagIdsSet.add("553");
		tagIdsSet.add("554");
		tagIdsSet.add("1137");
		tagIdsSet.add("372");
		tagIdsSet.add("385");
		tagIdsSet.add("1130");
		tagIdsSet.add("1131");
		tagIdsSet.add("384");
		tagIdsSet.add("58");
		tagIdsSet.add("529");
		tagIdsSet.add("1400");
		tagIdsSet.add("1401");
		tagIdsSet.add("1402");
		tagIdsSet.add("1403");
		tagIdsSet.add("1404");
		tagIdsSet.add("1409");
		tagIdsSet.add("1407");
		tagIdsSet.add("1408");
		tagIdsSet.add("354");
		tagIdsSet.add("355");
		this.bodyEntity.getBodyTagList().add(encryptMethod);
		this.bodyEntity.getBodyTagList().add(heartBtInt);
		this.bodyEntity.getBodyTagList().add(rawDataLength);
		this.bodyEntity.getBodyTagList().add(rawData);
		this.bodyEntity.getBodyTagList().add(resetSeqNumFlag);
		this.bodyEntity.getBodyTagList().add(nextExpectedMsgSeqNum);
		this.bodyEntity.getBodyTagList().add(maxMessageSize);
		this.bodyEntity.getBodyTagList().add(msgTypeGrpTag);
		this.bodyEntity.getBodyTagList().add(testMessageIndicator);
		this.bodyEntity.getBodyTagList().add(username);
		this.bodyEntity.getBodyTagList().add(password);
		this.bodyEntity.getBodyTagList().add(defaultApplVerID);
		this.bodyEntity.getBodyTagList().add(text);
		this.bodyEntity.getBodyTagList().add(newPassword);
		this.bodyEntity.getBodyTagList().add(encryptedPasswordMethod);
		this.bodyEntity.getBodyTagList().add(encryptedPasswordLen);
		this.bodyEntity.getBodyTagList().add(encryptedPassword);
		this.bodyEntity.getBodyTagList().add(encryptedNewPasswordLen);
		this.bodyEntity.getBodyTagList().add(encryptedNewPassword);
		this.bodyEntity.getBodyTagList().add(SessionStatus);
		this.bodyEntity.getBodyTagList().add(defaultApplExtID);
		this.bodyEntity.getBodyTagList().add(defaultCstmApplVerID);
		this.bodyEntity.getBodyTagList().add(encodedTextLen);
		this.bodyEntity.getBodyTagList().add(encodedText);
	}
	
	private Set<String> tagIdsSet=new HashSet<String>();
	
	@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();
		int encryptMethodType= Integer.parseInt(encryptMethod.getTagValue());
		if(encryptMethodType<0||encryptMethodType>6){
			throw new InValidDataException("encryptMethod错误");
		}
		if(!MsgUtil.applVerID.contains(defaultApplVerID.getTagValue())){
			throw new InValidDataException("defaultApplVerID错误");
		}
		if(SessionStatus.getTagValue()!=null){
			if(!MsgUtil.sessionStatus.contains(SessionStatus.getTagValue())){
				throw new InValidDataException("sessionStatus错误");
			}
		}
		

	}

	public Tag getEncryptMethod() {
		return encryptMethod;
	}

	public void setEncryptMethod(Tag encryptMethod) {
		this.encryptMethod = encryptMethod;
	}

	public Tag getHeartBtInt() {
		return heartBtInt;
	}

	public void setHeartBtInt(Tag heartBtInt) {
		this.heartBtInt = heartBtInt;
	}

	public Tag getRawDataLength() {
		return rawDataLength;
	}

	public void setRawDataLength(Tag rawDataLength) {
		this.rawDataLength = rawDataLength;
	}

	public Tag getRawData() {
		return rawData;
	}

	public void setRawData(Tag rawData) {
		this.rawData = rawData;
	}

	public Tag getResetSeqNumFlag() {
		return resetSeqNumFlag;
	}

	public void setResetSeqNumFlag(Tag resetSeqNumFlag) {
		this.resetSeqNumFlag = resetSeqNumFlag;
	}

	public Tag getNextExpectedMsgSeqNum() {
		return nextExpectedMsgSeqNum;
	}

	public void setNextExpectedMsgSeqNum(Tag nextExpectedMsgSeqNum) {
		this.nextExpectedMsgSeqNum = nextExpectedMsgSeqNum;
	}

	public Tag getMaxMessageSize() {
		return maxMessageSize;
	}

	public void setMaxMessageSize(Tag maxMessageSize) {
		this.maxMessageSize = maxMessageSize;
	}

	public Tag getMsgTypeGrpTag() {
		return msgTypeGrpTag;
	}

	public void setMsgTypeGrpTag(Tag msgTypeGrpTag) {
		this.msgTypeGrpTag = msgTypeGrpTag;
	}

	public Tag getTestMessageIndicator() {
		return testMessageIndicator;
	}

	public void setTestMessageIndicator(Tag testMessageIndicator) {
		this.testMessageIndicator = testMessageIndicator;
	}

	public Tag getUsername() {
		return username;
	}

	public void setUsername(Tag username) {
		this.username = username;
	}

	public Tag getPassword() {
		return password;
	}

	public void setPassword(Tag password) {
		this.password = password;
	}

	public Tag getDefaultApplVerID() {
		return defaultApplVerID;
	}

	public void setDefaultApplVerID(Tag defaultApplVerID) {
		this.defaultApplVerID = defaultApplVerID;
	}

	@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)){
				if(tagId.equals("384")){
					int skip=decodeGroup384(this.body);
					i=i+skip-1;
				}else{
					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");
			}
		}
		
	}
	
	private int decodeGroup384(String body){
		int index=body.indexOf("384=");
		String rest=body.substring(index);
		String[]tagItems=rest.split(BaseMsg.SOH);
		String[] numTagItems=tagItems[0].split("=");
		if(numTagItems.length!=2){
			throw new InValidDataException("消息格式错误");
		}
		if(!"384".equals(numTagItems[0])){
			throw new InValidDataException("消息格式错误");
		}
		int num=Integer.parseInt(numTagItems[1]);
		int count=1;
		int whileCount=0;
		((MsgTypeGrpTag)this.msgTypeGrpTag).setTagValue(num+"");
		boolean end=false;
		for(int i=0;i<num;i++){
			if(end){
				if(i!=num){
					throw new InValidDataException("消息格式错误");
				}else{
					break;
				}
			}
			MsgTypeGrp msgTypeGrp=new MsgTypeGrp();
			((MsgTypeGrpTag)this.msgTypeGrpTag).getChildren().add(msgTypeGrp);
			while(true){
				if(whileCount>=4){
					whileCount=0;
					break;
				}
				String[] tagIt=tagItems[count].split("=");
				if(tagIt.length!=2){
					throw new InValidDataException("消息格式错误");
				}
				if(whileCount==0){
					if(!MsgTypeGrpTag.first.equals(tagIt[0])){
						throw new InValidDataException("消息格式错误");
					}
				}
				
				if(MsgTypeGrp.tagIdsSet.contains(tagIt[0])){
					List<Tag> tagList=msgTypeGrp.getTagList();
					for(int j=0;j<tagList.size();j++){
						Tag groupTag=tagList.get(j);
						if(groupTag.getTagId().equals(tagIt[0])){
							groupTag.setTagValue(tagIt[1]);
							break;
						} 
					}
					if(tagItems.length>count+1){
						String[] nextTagIt=tagItems[count+1].split("=");
						if(nextTagIt.length!=2){
							throw new InValidDataException("消息格式错误");
						}
						if(MsgTypeGrpTag.first.equals(nextTagIt[0])){
							whileCount=0;
							count++;
							break;
						}
					}
					
					count++;
					whileCount++;
					
				}else{
					end=true;
					break;
				}
				
			}
			
		}
		
		return count;
	}

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

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

	public Tag getText() {
		return text;
	}

	public void setText(Tag text) {
		this.text = text;
	}

	public Tag getNewPassword() {
		return newPassword;
	}

	public void setNewPassword(Tag newPassword) {
		this.newPassword = newPassword;
	}

	public Tag getEncryptedPasswordMethod() {
		return encryptedPasswordMethod;
	}

	public void setEncryptedPasswordMethod(Tag encryptedPasswordMethod) {
		this.encryptedPasswordMethod = encryptedPasswordMethod;
	}

	public Tag getEncryptedPasswordLen() {
		return encryptedPasswordLen;
	}

	public void setEncryptedPasswordLen(Tag encryptedPasswordLen) {
		this.encryptedPasswordLen = encryptedPasswordLen;
	}

	public Tag getEncryptedPassword() {
		return encryptedPassword;
	}

	public void setEncryptedPassword(Tag encryptedPassword) {
		this.encryptedPassword = encryptedPassword;
	}

	public Tag getEncryptedNewPasswordLen() {
		return encryptedNewPasswordLen;
	}

	public void setEncryptedNewPasswordLen(Tag encryptedNewPasswordLen) {
		this.encryptedNewPasswordLen = encryptedNewPasswordLen;
	}

	public Tag getEncryptedNewPassword() {
		return encryptedNewPassword;
	}

	public void setEncryptedNewPassword(Tag encryptedNewPassword) {
		this.encryptedNewPassword = encryptedNewPassword;
	}

	public Tag getSessionStatus() {
		return SessionStatus;
	}

	public void setSessionStatus(Tag sessionStatus) {
		SessionStatus = sessionStatus;
	}

	public Tag getDefaultApplExtID() {
		return defaultApplExtID;
	}

	public void setDefaultApplExtID(Tag defaultApplExtID) {
		this.defaultApplExtID = defaultApplExtID;
	}

	public Tag getDefaultCstmApplVerID() {
		return defaultCstmApplVerID;
	}

	public void setDefaultCstmApplVerID(Tag defaultCstmApplVerID) {
		this.defaultCstmApplVerID = defaultCstmApplVerID;
	}

	public Tag getEncodedTextLen() {
		return encodedTextLen;
	}

	public void setEncodedTextLen(Tag encodedTextLen) {
		this.encodedTextLen = encodedTextLen;
	}

	public Tag getEncodedText() {
		return encodedText;
	}

	public void setEncodedText(Tag encodedText) {
		this.encodedText = encodedText;
	}

}

数据例子：

输入：
8=FIXT.1.1_9=86_35=A_49=CO99999901_56=HKEXCO_34=100_52=20131126-16:44:17.542_98=0_108=5_789=11_1137=9_10=028_

输出：
8=FIXT.1.1_9=117_35=A_49=HKEXCO_56=CO99999901_34=13_52=20131126-08:45:59.135_1128=9_58=Session Active_98=0_108=20_789=1_1137=9_1409=0_10=166_8=FIXT.1.1_9=110_35=4_49=HKEXCO_56=CO99999901_34=11_52=20131126-08:45:59.135_1128=9_43=Y_122=20131126-08:45:59.135_36=14_123=Y_10=024_

特别字段说明：