/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.code.or.binlog.impl.parser;
import java.io.IOException;
import com.google.code.or.binlog.BinlogEventV4Header;
import com.google.code.or.binlog.BinlogParserContext;
import com.google.code.or.binlog.impl.event.XidEvent;
import com.google.code.or.io.XInputStream;
/**
*
* @author Jingqi Xu
*/
public class XidEventParser extends AbstractBinlogEventParser {
/**
*
*/
public XidEventParser() {
super(XidEvent.EVENT_TYPE);
}
/**
* Note: Contrary to all other numeric fields, the XID transaction number is not always
* written in little-endian format. The bytes are copied unmodified from memory to disk,
* so the format is machine-dependent. Hence, when replicating from a little-endian to a
* big-endian machine (or vice versa), the numeric value of transaction numbers will differ.
* In particular, the output of mysqlbinlog differs. This should does not cause inconsistencies
* in replication because the only important property of transaction numbers is that different
* transactions have different numbers (relative order does not matter).
*/
public void parse(XInputStream is, BinlogEventV4Header header, BinlogParserContext context)
throws IOException {
final XidEvent event = new XidEvent(header);
event.setXid(is.readLong(8));
context.getEventListener().onEvents(event);
}
}