/*
* Copyright 2002-2016 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.syslog.config;
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.integration.ip.tcp.connection.AbstractServerConnectionFactory;
import org.springframework.integration.ip.udp.UnicastReceivingChannelAdapter;
import org.springframework.integration.syslog.MessageConverter;
import org.springframework.integration.syslog.inbound.SyslogReceivingChannelAdapterSupport;
import org.springframework.integration.syslog.inbound.TcpSyslogReceivingChannelAdapter;
import org.springframework.integration.syslog.inbound.UdpSyslogReceivingChannelAdapter;
import org.springframework.messaging.MessageChannel;
import org.springframework.util.Assert;
/**
* Factory bean to create syslog inbound adapters (UDP or TCP).
* @author Gary Russell
* @since 3.0
*
*/
public class SyslogReceivingChannelAdapterFactoryBean extends AbstractFactoryBean<SyslogReceivingChannelAdapterSupport>
implements SmartLifecycle, BeanNameAware, ApplicationEventPublisherAware {
public enum Protocol {
udp, tcp
}
private volatile SyslogReceivingChannelAdapterSupport adapter;
private final Protocol protocol;
private volatile MessageChannel outputChannel;
private volatile boolean autoStartup = true;
private volatile MessageChannel errorChannel;
private volatile int phase;
private volatile Long sendTimeout;
private volatile AbstractServerConnectionFactory connectionFactory;
private volatile UnicastReceivingChannelAdapter udpAdapter;
private volatile Integer port;
private volatile MessageConverter converter;
private volatile String beanName;
private volatile ApplicationEventPublisher applicationEventPublisher;
/**
* Instantiates a factory bean that creates a {@link UdpSyslogReceivingChannelAdapter}
* if the protocol is {@link Protocol#udp} or a {@link TcpSyslogReceivingChannelAdapter} if
* the protocol is {@link Protocol#tcp}.
* @param protocol The protocol.
*/
public SyslogReceivingChannelAdapterFactoryBean(Protocol protocol) {
Assert.notNull(protocol, "'protocol' cannot be null");
this.protocol = protocol;
}
public void setOutputChannel(MessageChannel outputChannel) {
this.outputChannel = outputChannel;
}
public void setAutoStartup(boolean autoStartup) {
this.autoStartup = autoStartup;
}
public void setErrorChannel(MessageChannel errorChannel) {
this.errorChannel = errorChannel;
}
public void setPhase(int phase) {
this.phase = phase;
}
public void setSendTimeout(long sendTimeout) {
this.sendTimeout = sendTimeout;
}
public void setConnectionFactory(AbstractServerConnectionFactory connectionFactory) {
this.connectionFactory = connectionFactory;
}
public void setUdpAdapter(UnicastReceivingChannelAdapter udpAdapter) {
this.udpAdapter = udpAdapter;
}
public void setPort(int port) {
this.port = port;
}
public void setConverter(MessageConverter converter) {
this.converter = converter;
}
@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() {
if (this.adapter != null) {
return this.adapter.isRunning();
}
return false;
}
@Override
public int getPhase() {
return this.phase;
}
@Override
public void setBeanName(String name) {
this.beanName = name;
}
@Override
public boolean isAutoStartup() {
return this.autoStartup;
}
@Override
public void stop(Runnable callback) {
if (this.adapter != null) {
this.adapter.stop(callback);
}
}
@Override
public Class<?> getObjectType() {
return this.adapter == null ? SyslogReceivingChannelAdapterSupport.class :
this.adapter.getClass();
}
@Override
protected SyslogReceivingChannelAdapterSupport createInstance() throws Exception {
SyslogReceivingChannelAdapterSupport adapter;
if (this.protocol == Protocol.tcp) {
adapter = new TcpSyslogReceivingChannelAdapter();
if (this.connectionFactory != null) {
Assert.isNull(this.port, "Cannot specify both 'port' and 'connectionFactory'");
((TcpSyslogReceivingChannelAdapter) adapter).setConnectionFactory(this.connectionFactory);
}
else if (this.applicationEventPublisher != null) {
((TcpSyslogReceivingChannelAdapter) adapter).setApplicationEventPublisher(this.applicationEventPublisher);
}
Assert.isNull(this.udpAdapter, "Cannot specify 'udp-attributes' when the protocol is 'tcp'");
}
else if (this.protocol == Protocol.udp) {
adapter = new UdpSyslogReceivingChannelAdapter();
if (this.udpAdapter != null) {
Assert.isNull(this.port, "Cannot specify both 'port' and 'udpAdapter'");
((UdpSyslogReceivingChannelAdapter) adapter).setUdpAdapter(this.udpAdapter);
}
Assert.isNull(this.connectionFactory, "Cannot specify 'connection-factory' unless the protocol is 'tcp'");
}
else {
throw new IllegalStateException("Unsupported protocol: " + this.protocol.toString());
}
if (this.port != null) {
adapter.setPort(this.port);
}
if (this.outputChannel != null) {
adapter.setOutputChannel(this.outputChannel);
}
adapter.setAutoStartup(this.autoStartup);
adapter.setPhase(this.phase);
if (this.errorChannel != null) {
adapter.setErrorChannel(this.errorChannel);
}
if (this.sendTimeout != null) {
adapter.setSendTimeout(this.sendTimeout);
}
if (this.converter != null) {
adapter.setConverter(this.converter);
}
if (this.beanName != null) {
adapter.setBeanName(this.beanName);
}
if (this.getBeanFactory() != null) {
adapter.setBeanFactory(this.getBeanFactory());
}
adapter.afterPropertiesSet();
this.adapter = adapter;
return adapter;
}
}