Java Transaction Xid Check xidToString(Xid xid, boolean includeBranchQualifier)

Description

xid To String

License

Open Source License

Declaration

static String xidToString(Xid xid, boolean includeBranchQualifier) 

Method Source Code

//package com.java2s;
/*//from  w  w  w .  ja v  a  2 s. c o m
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import java.util.Locale;
import java.util.Map;

import javax.transaction.xa.Xid;

public class Main {
    private Map<String, Xid> tids2xids;
    private static final char DIGITS[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D',
            'E', 'F' };

    static String xidToString(Xid xid, boolean includeBranchQualifier) {
        if (xid == null)
            return "";
        StringBuffer sb = new StringBuffer()
                .append(Integer.toHexString(xid.getFormatId()).toUpperCase(Locale.ENGLISH)).append("-")
                .append(byteArrayToString(xid.getGlobalTransactionId()));
        if (includeBranchQualifier) {
            String bqual = byteArrayToString(xid.getBranchQualifier());
            if (!bqual.equals("")) {
                sb.append("-").append(byteArrayToString(xid.getBranchQualifier()));
            }
        }
        return sb.toString();
    }

    private static String byteArrayToString(byte[] barray) {
        if (barray == null)
            return "";
        char[] res = new char[barray.length * 2]; // Two chars per byte
        int j = 0;
        for (int i = 0; i < barray.length; i++) {
            res[j++] = DIGITS[(barray[i] & 0xF0) >>> 4];
            res[j++] = DIGITS[barray[i] & 0x0F];
        }
        return new String(res);

    }

    public String toString() {
        return tids2xids.toString();
    }
}

Related

1. getRedisKey(String keyPrefix, Xid xid)
2. getXidSize(Xid xid)
3. sameTransaction(Xid x1, Xid x2)
4. sameXID(Xid x1, Xid x2)