/*
 * 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.flink.streaming.connectors.elasticsearch.table;

import org.apache.flink.configuration.ConfigOption;
import org.apache.flink.configuration.ConfigOptions;
import org.apache.flink.configuration.MemorySize;
import org.apache.flink.configuration.description.Description;
import org.apache.flink.streaming.connectors.elasticsearch.ElasticsearchSinkBase;

import java.time.Duration;
import java.util.List;

import static org.apache.flink.configuration.description.TextElement.text;

/**
 * Options for {@link org.apache.flink.table.factories.DynamicTableSinkFactory} for Elasticsearch.
 */
public class ElasticsearchOptions {
    /**
     * Backoff strategy. Extends {@link ElasticsearchSinkBase.FlushBackoffType} with {@code
     * DISABLED} option.
     */
    public enum BackOffType {
        DISABLED,
        CONSTANT,
        EXPONENTIAL
    }

    public static final ConfigOption<List<String>> HOSTS_OPTION =
            ConfigOptions.key("hosts")
                    .stringType()
                    .asList()
                    .noDefaultValue()
                    .withDescription("Elasticsearch hosts to connect to.");
    public static final ConfigOption<String> INDEX_OPTION =
            ConfigOptions.key("index")
                    .stringType()
                    .noDefaultValue()
                    .withDescription("Elasticsearch index for every record.");
    public static final ConfigOption<String> DOCUMENT_TYPE_OPTION =
            ConfigOptions.key("document-type")
                    .stringType()
                    .noDefaultValue()
                    .withDescription("Elasticsearch document type.");
    public static final ConfigOption<String> PASSWORD_OPTION =
            ConfigOptions.key("password")
                    .stringType()
                    .noDefaultValue()
                    .withDescription("Password used to connect to Elasticsearch instance.");
    public static final ConfigOption<String> USERNAME_OPTION =
            ConfigOptions.key("username")
                    .stringType()
                    .noDefaultValue()
                    .withDescription("Username used to connect to Elasticsearch instance.");
    public static final ConfigOption<String> KEY_DELIMITER_OPTION =
            ConfigOptions.key("document-id.key-delimiter")
                    .stringType()
                    .defaultValue("_")
                    .withDescription(
                            "Delimiter for composite keys e.g., \"$\" would result in IDs \"KEY1$KEY2$KEY3\".");
    public static final ConfigOption<String> FAILURE_HANDLER_OPTION =
            ConfigOptions.key("failure-handler")
                    .stringType()
                    .defaultValue("fail")
                    .withDescription(
                            Description.builder()
                                    .text(
                                            "Failure handling strategy in case a request to Elasticsearch fails")
                                    .list(
                                            text(
                                                    "\"fail\" (throws an exception if a request fails and thus causes a job failure),"),
                                            text(
                                                    "\"ignore\" (ignores failures and drops the request),"),
                                            text(
                                                    "\"retry-rejected\" (re-adds requests that have failed due to queue capacity saturation),"),
                                            text(
                                                    "\"class name\" for failure handling with a ActionRequestFailureHandler subclass"))
                                    .build());
    public static final ConfigOption<Boolean> FLUSH_ON_CHECKPOINT_OPTION =
            ConfigOptions.key("sink.flush-on-checkpoint")
                    .booleanType()
                    .defaultValue(true)
                    .withDescription("Disables flushing on checkpoint");
    public static final ConfigOption<Integer> BULK_FLUSH_MAX_ACTIONS_OPTION =
            ConfigOptions.key("sink.bulk-flush.max-actions")
                    .intType()
                    .defaultValue(1000)
                    .withDescription("Maximum number of actions to buffer for each bulk request.");
    public static final ConfigOption<MemorySize> BULK_FLASH_MAX_SIZE_OPTION =
            ConfigOptions.key("sink.bulk-flush.max-size")
                    .memoryType()
                    .defaultValue(MemorySize.parse("2mb"))
                    .withDescription("Maximum size of buffered actions per bulk request");
    public static final ConfigOption<Duration> BULK_FLUSH_INTERVAL_OPTION =
            ConfigOptions.key("sink.bulk-flush.interval")
                    .durationType()
                    .defaultValue(Duration.ofSeconds(1))
                    .withDescription("Bulk flush interval");
    public static final ConfigOption<BackOffType> BULK_FLUSH_BACKOFF_TYPE_OPTION =
            ConfigOptions.key("sink.bulk-flush.backoff.strategy")
                    .enumType(BackOffType.class)
                    .defaultValue(BackOffType.DISABLED)
                    .withDescription("Backoff strategy");
    public static final ConfigOption<Integer> BULK_FLUSH_BACKOFF_MAX_RETRIES_OPTION =
            ConfigOptions.key("sink.bulk-flush.backoff.max-retries")
                    .intType()
                    .noDefaultValue()
                    .withDescription("Maximum number of retries.");
    public static final ConfigOption<Duration> BULK_FLUSH_BACKOFF_DELAY_OPTION =
            ConfigOptions.key("sink.bulk-flush.backoff.delay")
                    .durationType()
                    .noDefaultValue()
                    .withDescription("Delay between each backoff attempt.");
    public static final ConfigOption<Duration> CONNECTION_MAX_RETRY_TIMEOUT_OPTION =
            ConfigOptions.key("connection.max-retry-timeout")
                    .durationType()
                    .noDefaultValue()
                    .withDescription("Maximum timeout between retries.");
    public static final ConfigOption<String> CONNECTION_PATH_PREFIX =
            ConfigOptions.key("connection.path-prefix")
                    .stringType()
                    .noDefaultValue()
                    .withDescription("Prefix string to be added to every REST communication.");
    public static final ConfigOption<String> FORMAT_OPTION =
            ConfigOptions.key("format")
                    .stringType()
                    .defaultValue("json")
                    .withDescription(
                            "Elasticsearch connector requires to specify a format.\n"
                                    + "The format must produce a valid json document. \n"
                                    + "By default uses built-in 'json' format. Please refer to Table Formats section for more details.");

    private ElasticsearchOptions() {}
}

@@ -4011,17 +4011,16 @@
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@@ -4169,17 +4169,16 @@
 request)
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@@ -4363,17 +4363,16 @@
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