me.tfeng.play.plugins.StartablePlugin Maven / Gradle / Ivy

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spring-plugin

There is a newer version: 0.4.1

/**
 * Copyright 2014 Thomas Feng
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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 me.tfeng.play.plugins;

import java.util.List;

import me.tfeng.play.spring.Startable;
import play.Application;
import play.Logger;
import play.Logger.ALogger;

/**
 * @author Thomas Feng ([email protected])
 */
public abstract class StartablePlugin extends AbstractPlugin {

  private static final ALogger LOG = Logger.of(StartablePlugin.class);

  public StartablePlugin(Application application) {
    super(application);
  }

  @Override
  public void onStart() {
    super.onStart();

    List startables = getStartables();
    for (Startable startable: startables) {
      try {
        startable.onStart();
      } catch (Throwable t) {
        onStartFailure(startable, t);
      }
    }
  }

  @Override
  public void onStop() {
    super.onStop();

    List startables = getStartables();
    for (Startable startable: startables) {
      try {
        startable.onStop();
      } catch (Throwable t) {
        onStopFailure(startable, t);
      }
    }
  }

  protected abstract List getStartables();

  protected void onStartFailure(Startable startable, Throwable t) {
    throw new RuntimeException("Unable to start " + startable, t);
  }

  protected void onStopFailure(Startable startable, Throwable t) {
    LOG.error("Unable to stop " + startable, t);
  }
}