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/*
 * Licensed to Metamarkets Group Inc. (Metamarkets) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. Metamarkets 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 io.druid.indexing.common;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.Preconditions;
import com.google.inject.Inject;
import com.metamx.emitter.service.ServiceEmitter;
import com.metamx.metrics.MonitorScheduler;
import io.druid.client.cache.Cache;
import io.druid.client.cache.CacheConfig;
import io.druid.guice.annotations.Processing;
import io.druid.indexing.common.actions.TaskActionClientFactory;
import io.druid.indexing.common.config.TaskConfig;
import io.druid.indexing.common.task.Task;
import io.druid.query.QueryRunnerFactoryConglomerate;
import io.druid.segment.IndexIO;
import io.druid.segment.IndexMerger;
import io.druid.segment.IndexMergerV9;
import io.druid.segment.loading.DataSegmentArchiver;
import io.druid.segment.loading.DataSegmentKiller;
import io.druid.segment.loading.DataSegmentMover;
import io.druid.segment.loading.DataSegmentPusher;
import io.druid.segment.realtime.plumber.SegmentHandoffNotifierFactory;
import io.druid.server.coordination.DataSegmentAnnouncer;

import java.io.File;
import java.util.concurrent.ExecutorService;

/**
 * Stuff that may be needed by a Task in order to conduct its business.
 */
public class TaskToolboxFactory
{
  private final TaskConfig config;
  private final TaskActionClientFactory taskActionClientFactory;
  private final ServiceEmitter emitter;
  private final DataSegmentPusher segmentPusher;
  private final DataSegmentKiller dataSegmentKiller;
  private final DataSegmentMover dataSegmentMover;
  private final DataSegmentArchiver dataSegmentArchiver;
  private final DataSegmentAnnouncer segmentAnnouncer;
  private final SegmentHandoffNotifierFactory handoffNotifierFactory;
  private final QueryRunnerFactoryConglomerate queryRunnerFactoryConglomerate;
  private final ExecutorService queryExecutorService;
  private final MonitorScheduler monitorScheduler;
  private final SegmentLoaderFactory segmentLoaderFactory;
  private final ObjectMapper objectMapper;
  private final IndexMerger indexMerger;
  private final IndexIO indexIO;
  private final Cache cache;
  private final CacheConfig cacheConfig;
  private final IndexMergerV9 indexMergerV9;

  @Inject
  public TaskToolboxFactory(
      TaskConfig config,
      TaskActionClientFactory taskActionClientFactory,
      ServiceEmitter emitter,
      DataSegmentPusher segmentPusher,
      DataSegmentKiller dataSegmentKiller,
      DataSegmentMover dataSegmentMover,
      DataSegmentArchiver dataSegmentArchiver,
      DataSegmentAnnouncer segmentAnnouncer,
      SegmentHandoffNotifierFactory handoffNotifierFactory,
      QueryRunnerFactoryConglomerate queryRunnerFactoryConglomerate,
      @Processing ExecutorService queryExecutorService,
      MonitorScheduler monitorScheduler,
      SegmentLoaderFactory segmentLoaderFactory,
      ObjectMapper objectMapper,
      IndexMerger indexMerger,
      IndexIO indexIO,
      Cache cache,
      CacheConfig cacheConfig,
      IndexMergerV9 indexMergerV9
  )
  {
    this.config = config;
    this.taskActionClientFactory = taskActionClientFactory;
    this.emitter = emitter;
    this.segmentPusher = segmentPusher;
    this.dataSegmentKiller = dataSegmentKiller;
    this.dataSegmentMover = dataSegmentMover;
    this.dataSegmentArchiver = dataSegmentArchiver;
    this.segmentAnnouncer = segmentAnnouncer;
    this.handoffNotifierFactory = handoffNotifierFactory;
    this.queryRunnerFactoryConglomerate = queryRunnerFactoryConglomerate;
    this.queryExecutorService = queryExecutorService;
    this.monitorScheduler = monitorScheduler;
    this.segmentLoaderFactory = segmentLoaderFactory;
    this.objectMapper = objectMapper;
    this.indexMerger = Preconditions.checkNotNull(indexMerger, "Null IndexMerger");
    this.indexIO = Preconditions.checkNotNull(indexIO, "Null IndexIO");
    this.cache = cache;
    this.cacheConfig = cacheConfig;
    this.indexMergerV9 = indexMergerV9;
  }

  public TaskToolbox build(Task task)
  {
    final File taskWorkDir = config.getTaskWorkDir(task.getId());
    return new TaskToolbox(
        config,
        task,
        taskActionClientFactory.create(task),
        emitter,
        segmentPusher,
        dataSegmentKiller,
        dataSegmentMover,
        dataSegmentArchiver,
        segmentAnnouncer,
        handoffNotifierFactory,
        queryRunnerFactoryConglomerate,
        queryExecutorService,
        monitorScheduler,
        segmentLoaderFactory.manufacturate(taskWorkDir),
        objectMapper,
        taskWorkDir,
        indexMerger,
        indexIO,
        cache,
        cacheConfig,
        indexMergerV9
    );
  }
}