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/*
 * Copyright © 2017-2020 factcast.org
 *
 * 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 org.factcast.factus.projection;

import org.factcast.core.util.ExceptionHelper;

public interface ManagedProjection extends Projection, FactStreamPositionAware, WriterTokenAware {

  default void withLock(Runnable runnable) {
    try (AutoCloseable token = acquireWriteToken()) {
      if (token == null) {
        throw new IllegalStateException("cannot acquire write token");
      } else {
        runnable.run();
      }
    } catch (Exception e) {
      throw ExceptionHelper.toRuntime(e);
    }
  }
}