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A Kafka Connect Couchbase connector for copying data between Kafka and Couchbase Server.

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/*
 * Copyright 2018 Couchbase, Inc.
 *
 * Licensed 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.couchbase.connect.kafka.util.config;

import org.apache.kafka.common.config.ConfigDef;
import org.apache.kafka.common.config.ConfigException;

import static java.util.concurrent.TimeUnit.MILLISECONDS;

public class DurationValidator implements ConfigDef.Validator {
  @Override
  public void ensureValid(String name, Object value) {
    try {
      if (value != null && !((String) value).isEmpty()) {
        DurationParser.parseDuration((String) value, MILLISECONDS);
      }
    } catch (IllegalArgumentException e) {
      throw new ConfigException("Failed to parse config property '" + name + "' -- " + e.getMessage());
    }
  }

  public String toString() {
    return "An integer followed by a time unit (ms = milliseconds, s = seconds, m = minutes, h = hours, d = days)." +
        " For example, to specify 30 minutes: 30m";
  }
}