/*
* Copyright 2002-2014 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.integration.file.config;
import java.io.File;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.beans.factory.config.AbstractFactoryBean;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.ApplicationEventPublisherAware;
import org.springframework.context.SmartLifecycle;
import org.springframework.core.task.TaskExecutor;
import org.springframework.integration.file.tail.ApacheCommonsFileTailingMessageProducer;
import org.springframework.integration.file.tail.FileTailingMessageProducerSupport;
import org.springframework.integration.file.tail.OSDelegatingFileTailingMessageProducer;
import org.springframework.messaging.MessageChannel;
import org.springframework.scheduling.TaskScheduler;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
/**
* @author Gary Russell
* @author Artem Bilan
* @author Ali Shahbour
* @since 3.0
*
*/
public class FileTailInboundChannelAdapterFactoryBean extends AbstractFactoryBean<FileTailingMessageProducerSupport>
implements BeanNameAware, SmartLifecycle, ApplicationEventPublisherAware {
private volatile String nativeOptions;
private volatile boolean enableStatusReader = true;
private volatile Long idleEventInterval;
private volatile File file;
private volatile TaskExecutor taskExecutor;
private volatile TaskScheduler taskScheduler;
private volatile Long delay;
private volatile Long fileDelay;
private volatile Boolean end;
private volatile Boolean reopen;
private volatile FileTailingMessageProducerSupport adapter;
private volatile String beanName;
private volatile MessageChannel outputChannel;
private volatile MessageChannel errorChannel;
private volatile Boolean autoStartup;
private volatile Integer phase;
private volatile ApplicationEventPublisher applicationEventPublisher;
public void setNativeOptions(String nativeOptions) {
if (StringUtils.hasText(nativeOptions)) {
this.nativeOptions = nativeOptions;
}
}
/**
* If false, thread for capturing stderr will not be started
* and stderr output will be ignored
* @param enableStatusReader true or false
* @since 4.3.6
*/
public void setEnableStatusReader(boolean enableStatusReader) {
this.enableStatusReader = enableStatusReader;
}
/**
* How often to emit {@link FileTailingMessageProducerSupport.FileTailingIdleEvent}s in milliseconds.
* @param idleEventInterval the interval.
* @since 5.0
*/
public void setIdleEventInterval(long idleEventInterval) {
this.idleEventInterval = idleEventInterval;
}
public void setFile(File file) {
this.file = file;
}
public void setTaskExecutor(TaskExecutor taskExecutor) {
this.taskExecutor = taskExecutor;
}
public void setTaskScheduler(TaskScheduler taskScheduler) {
this.taskScheduler = taskScheduler;
}
public void setDelay(Long delay) {
this.delay = delay;
}
public void setFileDelay(Long fileDelay) {
this.fileDelay = fileDelay;
}
public void setEnd(Boolean end) {
this.end = end;
}
public void setReopen(Boolean reopen) {
this.reopen = reopen;
}
@Override
public void setBeanName(String name) {
this.beanName = name;
}
public void setOutputChannel(MessageChannel outputChannel) {
this.outputChannel = outputChannel;
}
public void setErrorChannel(MessageChannel errorChannel) {
this.errorChannel = errorChannel;
}
public void setAutoStartup(boolean autoStartup) {
this.autoStartup = autoStartup;
}
public void setPhase(int phase) {
this.phase = phase;
}
@Override
public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
this.applicationEventPublisher = applicationEventPublisher;
}
@Override
public void start() {
if (this.adapter != null) {
this.adapter.start();
}
}
@Override
public void stop() {
if (this.adapter != null) {
this.adapter.stop();
}
}
@Override
public boolean isRunning() {
return this.adapter != null && this.adapter.isRunning();
}
@Override
public int getPhase() {
if (this.adapter != null) {
return this.adapter.getPhase();
}
return 0;
}
@Override
public boolean isAutoStartup() {
return this.adapter != null && this.adapter.isAutoStartup();
}
@Override
public void stop(Runnable callback) {
if (this.adapter != null) {
this.adapter.stop(callback);
}
}
@Override
public Class<?> getObjectType() {
return this.adapter == null ? FileTailingMessageProducerSupport.class : this.adapter.getClass();
}
@Override
protected FileTailingMessageProducerSupport createInstance() throws Exception {
FileTailingMessageProducerSupport adapter;
if (this.delay == null && this.end == null && this.reopen == null) {
adapter = new OSDelegatingFileTailingMessageProducer();
((OSDelegatingFileTailingMessageProducer) adapter).setEnableStatusReader(this.enableStatusReader);
if (this.nativeOptions != null) {
((OSDelegatingFileTailingMessageProducer) adapter).setOptions(this.nativeOptions);
}
}
else {
Assert.isTrue(this.nativeOptions == null,
"'native-options' is not allowed with 'delay', 'end', or 'reopen'");
adapter = new ApacheCommonsFileTailingMessageProducer();
if (this.delay != null) {
((ApacheCommonsFileTailingMessageProducer) adapter).setPollingDelay(this.delay);
}
if (this.end != null) {
((ApacheCommonsFileTailingMessageProducer) adapter).setEnd(this.end);
}
if (this.reopen != null) {
((ApacheCommonsFileTailingMessageProducer) adapter).setReopen(this.reopen);
}
}
adapter.setFile(this.file);
if (this.taskExecutor != null) {
adapter.setTaskExecutor(this.taskExecutor);
}
if (this.taskScheduler != null) {
adapter.setTaskScheduler(this.taskScheduler);
}
if (this.fileDelay != null) {
adapter.setTailAttemptsDelay(this.fileDelay);
}
if (this.idleEventInterval != null) {
adapter.setIdleEventInterval(this.idleEventInterval);
}
adapter.setOutputChannel(this.outputChannel);
adapter.setErrorChannel(this.errorChannel);
adapter.setBeanName(this.beanName);
if (this.autoStartup != null) {
adapter.setAutoStartup(this.autoStartup);
}
if (this.phase != null) {
adapter.setPhase(this.phase);
}
if (this.applicationEventPublisher != null) {
adapter.setApplicationEventPublisher(this.applicationEventPublisher);
}
if (getBeanFactory() != null) {
adapter.setBeanFactory(getBeanFactory());
}
adapter.afterPropertiesSet();
this.adapter = adapter;
return adapter;
}
}