content: /*
   * 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 org.apache.camel.component.syslog;
  
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.util.Date;
  
  import org.apache.camel.Exchange;
  import org.apache.camel.spi.DataFormat;
  import org.apache.camel.spi.DataFormatName;
  import org.apache.camel.spi.annotations.Dataformat;
  import org.apache.camel.support.ExchangeHelper;
  import org.apache.camel.support.service.ServiceSupport;
  
  @Dataformat("syslog")
  public class SyslogDataFormat extends ServiceSupport implements DataFormat, DataFormatName {
  
      @Override
      public String getDataFormatName() {
          return "syslog";
      }
  
      @Override
      public void marshal(Exchange exchange, Object body, OutputStream stream) throws Exception {
          SyslogMessage message = ExchangeHelper.convertToMandatoryType(exchange, SyslogMessage.class, body);
          stream.write(SyslogConverter.toString(message).getBytes());
      }
  
      @Override
      public Object unmarshal(Exchange exchange, InputStream inputStream) throws Exception {
          String body = ExchangeHelper.convertToMandatoryType(exchange, String.class, inputStream);
          SyslogMessage message = SyslogConverter.parseMessage(body.getBytes());
  
          exchange.getMessage().setHeader(SyslogConstants.SYSLOG_FACILITY, message.getFacility());
          exchange.getMessage().setHeader(SyslogConstants.SYSLOG_SEVERITY, message.getSeverity());
          exchange.getMessage().setHeader(SyslogConstants.SYSLOG_HOSTNAME, message.getHostname());
          // use java.util.Date as timestamp
          Date time = message.getTimestamp() != null ? message.getTimestamp().getTime() : null;
          if (time != null) {
              exchange.getMessage().setHeader(SyslogConstants.SYSLOG_TIMESTAMP, time);
          }
  
          // Since we are behind the fact of being in an Endpoint...
          // We need to pull in the remote/local via either Mina or Netty.
  
          if (exchange.getIn().getHeader("CamelMinaLocalAddress") != null) {
              message.setLocalAddress(exchange.getIn().getHeader("CamelMinaLocalAddress", String.class));
              exchange.getMessage().setHeader(SyslogConstants.SYSLOG_LOCAL_ADDRESS, message.getLocalAddress());
          }
  
          if (exchange.getIn().getHeader("CamelMinaRemoteAddress") != null) {
              message.setRemoteAddress(exchange.getIn().getHeader("CamelMinaRemoteAddress", String.class));
              exchange.getMessage().setHeader(SyslogConstants.SYSLOG_REMOTE_ADDRESS, message.getRemoteAddress());
          }
  
          if (exchange.getIn().getHeader("CamelNettyLocalAddress") != null) {
              message.setLocalAddress(exchange.getIn().getHeader("CamelNettyLocalAddress", String.class));
              exchange.getMessage().setHeader(SyslogConstants.SYSLOG_LOCAL_ADDRESS, message.getLocalAddress());
          }
  
          if (exchange.getIn().getHeader("CamelNettyRemoteAddress") != null) {
              message.setRemoteAddress(exchange.getIn().getHeader("CamelNettyRemoteAddress", String.class));
              exchange.getMessage().setHeader(SyslogConstants.SYSLOG_REMOTE_ADDRESS, message.getRemoteAddress());
          }
  
          return message;
      }
  
      @Override
      protected void doStart() throws Exception {
          // noop
      }
  
      @Override
      protected void doStop() throws Exception {
          // noop
      }
  }
  