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/**
 * 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;

import com.google.code.or.binlog.BinlogEventListener;
import com.google.code.or.binlog.BinlogParser;
import com.google.code.or.binlog.impl.FileBasedBinlogParser;
import com.google.code.or.binlog.impl.parser.DeleteRowsEventParser;
import com.google.code.or.binlog.impl.parser.DeleteRowsEventV2Parser;
import com.google.code.or.binlog.impl.parser.FormatDescriptionEventParser;
import com.google.code.or.binlog.impl.parser.GtidEventParser;
import com.google.code.or.binlog.impl.parser.IncidentEventParser;
import com.google.code.or.binlog.impl.parser.IntvarEventParser;
import com.google.code.or.binlog.impl.parser.QueryEventParser;
import com.google.code.or.binlog.impl.parser.RandEventParser;
import com.google.code.or.binlog.impl.parser.RotateEventParser;
import com.google.code.or.binlog.impl.parser.StopEventParser;
import com.google.code.or.binlog.impl.parser.TableMapEventParser;
import com.google.code.or.binlog.impl.parser.UpdateRowsEventParser;
import com.google.code.or.binlog.impl.parser.UpdateRowsEventV2Parser;
import com.google.code.or.binlog.impl.parser.UserVarEventParser;
import com.google.code.or.binlog.impl.parser.WriteRowsEventParser;
import com.google.code.or.binlog.impl.parser.WriteRowsEventV2Parser;
import com.google.code.or.binlog.impl.parser.XidEventParser;

import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;

/**
 *
 * @author Jingqi Xu
 */
public class OpenParser {
  //
  protected long stopPosition;
  protected long startPosition;
  protected String binlogFileName;
  protected String binlogFilePath;

  //
  protected BinlogParser binlogParser;
  protected BinlogEventListener binlogEventListener;
  protected final AtomicBoolean running = new AtomicBoolean(false);

  /**
   *
   */
  public boolean isRunning() {
    return this.running.get();
  }

  public void start() throws Exception {
    //
    if (!this.running.compareAndSet(false, true)) {
      return;
    }

    //
    if (this.binlogParser == null) this.binlogParser = getDefaultBinlogParser();
    this.binlogParser.setEventListener(this.binlogEventListener);
    this.binlogParser.start();
  }

  public void stop(long timeout, TimeUnit unit) throws Exception {
    //
    if (!this.running.compareAndSet(true, false)) {
      return;
    }

    //
    this.binlogParser.stop(timeout, unit);
  }

  /**
   *
   */
  public long getStopPosition() {
    return stopPosition;
  }

  public void setStopPosition(long position) {
    this.stopPosition = position;
  }

  public long getStartPosition() {
    return startPosition;
  }

  public void setStartPosition(long position) {
    this.startPosition = position;
  }

  public String getBinlogFileName() {
    return binlogFileName;
  }

  public void setBinlogFileName(String name) {
    this.binlogFileName = name;
  }

  public String getBinlogFilePath() {
    return binlogFilePath;
  }

  public void setBinlogFilePath(String path) {
    this.binlogFilePath = path;
  }

  /**
   *
   */
  public BinlogParser getBinlogParser() {
    return binlogParser;
  }

  public void setBinlogParser(BinlogParser parser) {
    this.binlogParser = parser;
  }

  public BinlogEventListener getBinlogEventListener() {
    return binlogEventListener;
  }

  public void setBinlogEventListener(BinlogEventListener listener) {
    this.binlogEventListener = listener;
  }

  /**
   *
   */
  protected FileBasedBinlogParser getDefaultBinlogParser() throws Exception {
    //
    final FileBasedBinlogParser r = new FileBasedBinlogParser();
    r.registerEventParser(new StopEventParser());
    r.registerEventParser(new RotateEventParser());
    r.registerEventParser(new IntvarEventParser());
    r.registerEventParser(new XidEventParser());
    r.registerEventParser(new RandEventParser());
    r.registerEventParser(new QueryEventParser());
    r.registerEventParser(new UserVarEventParser());
    r.registerEventParser(new IncidentEventParser());
    r.registerEventParser(new TableMapEventParser());
    r.registerEventParser(new WriteRowsEventParser());
    r.registerEventParser(new UpdateRowsEventParser());
    r.registerEventParser(new DeleteRowsEventParser());
    r.registerEventParser(new WriteRowsEventV2Parser());
    r.registerEventParser(new UpdateRowsEventV2Parser());
    r.registerEventParser(new DeleteRowsEventV2Parser());
    r.registerEventParser(new FormatDescriptionEventParser());
    r.registerEventParser(new GtidEventParser());

    //
    r.setStopPosition(this.stopPosition);
    r.setStartPosition(this.startPosition);
    r.setBinlogFileName(this.binlogFileName);
    r.setBinlogFilePath(this.binlogFilePath);
    return r;
  }
}