/*
* Copyright 2015 the original author or authors.
*
* 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.springframework.statemachine.config.common.annotation.configuration;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.context.Lifecycle;
import org.springframework.context.SmartLifecycle;
import org.springframework.statemachine.config.common.annotation.ObjectPostProcessor;
import org.springframework.util.Assert;
/**
* Post processor handling lifecycle methods of
* POJOs created from builder/configurer.
*
* @author Janne Valkealahti
*
*/
final class AutowireBeanFactoryObjectPostProcessor implements ObjectPostProcessor<Object>, DisposableBean, SmartLifecycle {
private final static Log log = LogFactory.getLog(AutowireBeanFactoryObjectPostProcessor.class);
private final AutowireCapableBeanFactory autowireBeanFactory;
private final List<DisposableBean> disposableBeans = new ArrayList<DisposableBean>();
private final List<Lifecycle> lifecycleBeans = new ArrayList<Lifecycle>();
private boolean running;
/**
* Instantiates a new autowire bean factory object post processor.
*
* @param autowireBeanFactory the autowire bean factory
*/
public AutowireBeanFactoryObjectPostProcessor(AutowireCapableBeanFactory autowireBeanFactory) {
Assert.notNull(autowireBeanFactory, "autowireBeanFactory cannot be null");
this.autowireBeanFactory = autowireBeanFactory;
}
@SuppressWarnings("unchecked")
@Override
public <T> T postProcess(T object) {
T result = (T) autowireBeanFactory.initializeBean(object, null);
if(result instanceof DisposableBean) {
disposableBeans.add((DisposableBean) result);
}
if(result instanceof Lifecycle) {
lifecycleBeans.add((Lifecycle) result);
}
return result;
}
@Override
public void destroy() throws Exception {
for(DisposableBean disposable : disposableBeans) {
try {
disposable.destroy();
} catch(Exception error) {
log.error(error);
}
}
}
@Override
public void start() {
running = true;
for (Lifecycle bean : lifecycleBeans) {
bean.start();
}
}
@Override
public void stop() {
for (Lifecycle bean : lifecycleBeans) {
bean.stop();
}
running = false;
}
@Override
public boolean isRunning() {
return running;
}
@Override
public int getPhase() {
return 0;
}
@Override
public boolean isAutoStartup() {
return true;
}
@Override
public void stop(Runnable callback) {
stop();
callback.run();
}
}