org.h2.jdbcx.JdbcXid Maven / Gradle / Ivy
/*
* Copyright 2004-2009 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.jdbcx;
import java.sql.SQLException;
import java.util.StringTokenizer;
//## Java 1.4 begin ##
import javax.transaction.xa.Xid;
//## Java 1.4 end ##
import org.h2.constant.ErrorCode;
import org.h2.message.Message;
import org.h2.message.TraceObject;
import org.h2.util.ByteUtils;
/**
* An object of this class represents a transaction id.
*/
public class JdbcXid extends TraceObject
//## Java 1.4 begin ##
implements Xid
//## Java 1.4 end ##
{
private static final String PREFIX = "XID";
private int formatId;
private byte[] branchQualifier;
private byte[] globalTransactionId;
JdbcXid(JdbcDataSourceFactory factory, int id, String tid) throws SQLException {
setTrace(factory.getTrace(), TraceObject.XID, id);
try {
StringTokenizer tokenizer = new StringTokenizer(tid, "_");
String prefix = tokenizer.nextToken();
if (!PREFIX.equals(prefix)) {
throw Message.getSQLException(ErrorCode.WRONG_XID_FORMAT_1, tid);
}
formatId = Integer.parseInt(tokenizer.nextToken());
branchQualifier = ByteUtils.convertStringToBytes(tokenizer.nextToken());
globalTransactionId = ByteUtils.convertStringToBytes(tokenizer.nextToken());
} catch (RuntimeException e) {
throw Message.getSQLException(ErrorCode.WRONG_XID_FORMAT_1, tid);
}
}
/**
* INTERNAL
*/
public String getAsString() {
StringBuilder buff = new StringBuilder(PREFIX);
buff.append('_').
append(formatId).
append('_').
append(ByteUtils.convertBytesToString(branchQualifier)).
append('_').
append(ByteUtils.convertBytesToString(globalTransactionId));
return buff.toString();
}
/**
* Get the format id.
*
* @return the format id
*/
public int getFormatId() {
debugCodeCall("getFormatId");
return formatId;
}
/**
* The transaction branch identifier.
*
* @return the identifier
*/
public byte[] getBranchQualifier() {
debugCodeCall("getBranchQualifier");
return branchQualifier;
}
/**
* The global transaction identifier.
*
* @return the transaction id
*/
public byte[] getGlobalTransactionId() {
debugCodeCall("getGlobalTransactionId");
return globalTransactionId;
}
/**
* INTERNAL
*/
public String toString() {
return getTraceObjectName() + ": " + getAsString();
}
}