ProgramRunExistenceVerifier.java

/*
 * Copyright © 2016 Cask Data, 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 co.cask.cdap.internal.app.runtime;

import co.cask.cdap.app.store.Store;
import co.cask.cdap.common.NotFoundException;
import co.cask.cdap.common.entity.EntityExistenceVerifier;
import co.cask.cdap.proto.id.ProgramRunId;
import com.google.inject.Inject;

/**
 * {@link EntityExistenceVerifier} for {@link ProgramRunId program runs}.
 */
public class ProgramRunExistenceVerifier implements EntityExistenceVerifier<ProgramRunId> {
  private final Store store;

  @Inject
  ProgramRunExistenceVerifier(Store store) {
    this.store = store;
  }

  @Override
  public void ensureExists(ProgramRunId runId) throws NotFoundException {
    if (store.getRun(runId.toId().getProgram(), runId.getRun()) == null) {
      throw new NotFoundException(runId.toId());
    }
  }
}