org.apache.pulsar.io.canal.CanalByteSource Maven / Gradle / Ivy
/*
* 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 org.apache.pulsar.io.canal;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.otter.canal.protocol.FlatMessage;
import com.alibaba.otter.canal.protocol.Message;
import java.util.List;
import org.apache.pulsar.io.core.annotations.Connector;
import org.apache.pulsar.io.core.annotations.IOType;
/**
* A Simple class for mysql binlog sync to pulsar.
*/
@Connector(
name = "canal",
type = IOType.SOURCE,
help = "The CanalByteSource is used for syncing mysql binlog to Pulsar.",
configClass = CanalSourceConfig.class)
public class CanalByteSource extends CanalAbstractSource {
@Override
public Long getMessageId(Message message) {
return message.getId();
}
@Override
public byte[] extractValue(List flatMessages) {
String messages = JSON.toJSONString(flatMessages, SerializerFeature.WriteMapNullValue);
return messages.getBytes();
}
}