core/src/main/java/org/apache/camel/kafkaconnector/CamelSinkConnector.java

/*
 * 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.camel.kafkaconnector;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.apache.kafka.common.config.ConfigDef;
import org.apache.kafka.connect.connector.Task;
import org.apache.kafka.connect.sink.SinkConnector;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class CamelSinkConnector extends SinkConnector {
    private static final Logger LOG = LoggerFactory.getLogger(CamelSinkConnector.class);

    private Map<String, String> configProps;

    @Override
    public String version() {
        return VersionUtil.getVersion();
    }

    @Override
    public void start(Map<String, String> configProps) {
        LOG.info("Connector config keys: {}", String.join(", ", configProps.keySet()));
        this.configProps = configProps;
    }

    @Override
    public Class<? extends Task> taskClass() {
        return CamelSinkTask.class;
    }

    @Override
    public List<Map<String, String>> taskConfigs(int maxTasks) {
        LOG.info("Setting task configurations for {} workers.", maxTasks);
        final List<Map<String, String>> configs = new ArrayList<>(maxTasks);
        for (int i = 0; i < maxTasks; ++i) {
            configs.add(configProps);
        }
        return configs;
    }

    @Override
    public void stop() {
        //Nothing to do
    }

    @Override
    public ConfigDef config() {
        return CamelSinkConnectorConfig.conf();
    }
}