/**
* 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 java.util.LinkedList;
import java.util.List;
import com.google.code.or.binlog.BinlogEventV4Header;
import com.google.code.or.binlog.BinlogParserContext;
import com.google.code.or.binlog.impl.event.TableMapEvent;
import com.google.code.or.binlog.impl.event.UpdateRowsEvent;
import com.google.code.or.common.glossary.Pair;
import com.google.code.or.common.glossary.Row;
import com.google.code.or.io.XInputStream;
/**
*
* @author Jingqi Xu
*/
public class UpdateRowsEventParser extends AbstractRowEventParser {
/**
*
*/
public UpdateRowsEventParser() {
super(UpdateRowsEvent.EVENT_TYPE);
}
/**
*
*/
public void parse(XInputStream is, BinlogEventV4Header header, BinlogParserContext context)
throws IOException {
//
final long tableId = is.readLong(6);
final TableMapEvent tme = context.getTableMapEvent(tableId);
if(this.rowEventFilter != null && !this.rowEventFilter.accepts(header, context, tme)) {
is.skip(is.available());
return;
}
//
final UpdateRowsEvent event = new UpdateRowsEvent(header);
event.setTableId(tableId);
event.setReserved(is.readInt(2));
event.setColumnCount(is.readUnsignedLong());
event.setUsedColumnsBefore(is.readBit(event.getColumnCount().intValue(), true));
event.setUsedColumnsAfter(is.readBit(event.getColumnCount().intValue(), true));
event.setRows(parseRows(is, tme, event));
context.getEventListener().onEvents(event);
}
/**
*
*/
protected List<Pair<Row>> parseRows(XInputStream is, TableMapEvent tme, UpdateRowsEvent ure)
throws IOException {
final List<Pair<Row>> r = new LinkedList<Pair<Row>>();
while(is.available() > 0) {
final Row before = parseRow(is, tme, ure.getUsedColumnsBefore());
final Row after = parseRow(is, tme, ure.getUsedColumnsAfter());
r.add(new Pair<Row>(before, after));
}
return r;
}
}