/**
 * Copyright 2013-2014 Recruit Technologies Co., Ltd. and contributors
 * (see CONTRIBUTORS.md)
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.  A copy of the
 * License is distributed with this work in the LICENSE.md file.  You may
 * also obtain a copy of the License from
 *
 *     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.gennai.gungnir;

import static org.gennai.gungnir.GungnirConst.*;

import java.util.List;

import org.gennai.gungnir.topology.GroupFields;
import org.gennai.gungnir.topology.GungnirContext;
import org.gennai.gungnir.topology.processor.FetchProcessor;
import org.gennai.gungnir.topology.processor.ProcessorException;
import org.gennai.gungnir.tuple.GungnirTuple;

public class MockFetchProcessor implements FetchProcessor {

  private static final long serialVersionUID = SERIAL_VERSION_UID;

  private String operatorName;
  private FetchStore fetchStore;

  public MockFetchProcessor(String operatorName, FetchStore fetchStore) {
    this.operatorName = operatorName;
    this.fetchStore = fetchStore;
  }

  @Override
  public GroupFields getGroupFields() {
    return null;
  }

  @Override
  public void open(GungnirConfig config, GungnirContext context) throws ProcessorException {
  }

  @Override
  public List<List<Object>> fetch(GungnirTuple tuple) throws ProcessorException {
    return fetchStore.find(operatorName, tuple);
  }

  @Override
  public void close() {
  }
}