org.springframework.integration.syslog.inbound.TcpSyslogReceivingChannelAdapter.java Source code

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Here is the source code for org.springframework.integration.syslog.inbound.TcpSyslogReceivingChannelAdapter.java

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/*
 * Copyright 2002-2019 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
 *
 *      https://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.inbound;

import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.ApplicationEventPublisherAware;
import org.springframework.integration.ip.tcp.connection.AbstractServerConnectionFactory;
import org.springframework.integration.ip.tcp.connection.TcpListener;
import org.springframework.integration.ip.tcp.connection.TcpNioServerConnectionFactory;
import org.springframework.integration.ip.tcp.serializer.ByteArrayLfSerializer;
import org.springframework.messaging.Message;

/**
 * TCP implementation of a syslog inbound channel adapter.
 *
 * @author Gary Russell
 * @author Artem Bilan
 * @since 3.0
 *
 */
public class TcpSyslogReceivingChannelAdapter extends SyslogReceivingChannelAdapterSupport
        implements TcpListener, ApplicationEventPublisherAware {

    private volatile AbstractServerConnectionFactory connectionFactory;

    private volatile ApplicationEventPublisher applicationEventPublisher;

    /**
     * @param connectionFactory The connection factory.
     */
    public void setConnectionFactory(AbstractServerConnectionFactory connectionFactory) {
        this.connectionFactory = connectionFactory;
    }

    @Override
    public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
        this.applicationEventPublisher = applicationEventPublisher;
    }

    @Override
    protected int getPort() {
        if (this.connectionFactory == null) {
            return super.getPort();
        } else {
            return this.connectionFactory.getPort();
        }
    }

    @Override
    public String getComponentType() {
        return "syslog:inbound-channel-adapter(tcp)";
    }

    @Override
    protected void onInit() {
        super.onInit();
        if (this.connectionFactory == null) {
            this.connectionFactory = new TcpNioServerConnectionFactory(getPort());
            this.connectionFactory.setDeserializer(new ByteArrayLfSerializer());
            this.connectionFactory.setBeanFactory(getBeanFactory());
            if (this.applicationEventPublisher != null) {
                this.connectionFactory.setApplicationEventPublisher(this.applicationEventPublisher);
            }
            this.connectionFactory.afterPropertiesSet();
        }
        this.connectionFactory.registerListener(this);
    }

    @Override
    protected void doStart() {
        super.doStart();
        this.connectionFactory.start();
    }

    @Override
    protected void doStop() {
        super.doStop();
        this.connectionFactory.stop();
    }

    @Override
    public boolean onMessage(Message<?> message) {
        this.convertAndSend(message);
        return false;
    }

}