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/*
 * Druid - a distributed column store.
 * Copyright 2012 - 2015 Metamarkets Group 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 io.druid.storage.cassandra;

import com.fasterxml.jackson.annotation.JacksonInject;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonTypeName;
import io.druid.segment.loading.LoadSpec;
import io.druid.segment.loading.SegmentLoadingException;

import java.io.File;

/**
 *
 */
@JsonTypeName(CassandraDruidModule.SCHEME)
public class CassandraLoadSpec implements LoadSpec
{
  @JsonProperty
  private final String key;
  private final CassandraDataSegmentPuller puller;

  @JsonCreator
  public CassandraLoadSpec(
      @JacksonInject CassandraDataSegmentPuller puller,
      @JsonProperty("key") String key
  )
  {
    this.puller = puller;
    this.key = key;
  }

  @Override
  public LoadSpecResult loadSegment(File outDir) throws SegmentLoadingException
  {
    return new LoadSpecResult(puller.getSegmentFiles(key, outDir).size());
  }
}