/**
* 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.aws.sns;
import com.amazonaws.services.sns.model.PublishRequest;
import com.amazonaws.services.sns.model.PublishResult;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.impl.DefaultProducer;
import org.apache.camel.util.URISupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A Producer which sends messages to the Amazon Web Service Simple Notification Service
* <a href="http://aws.amazon.com/sns/">AWS SNS</a>
*/
public class SnsProducer extends DefaultProducer {
private static final Logger LOG = LoggerFactory.getLogger(SnsProducer.class);
public SnsProducer(Endpoint endpoint) {
super(endpoint);
}
public void process(Exchange exchange) throws Exception {
PublishRequest request = new PublishRequest();
request.setTopicArn(getConfiguration().getTopicArn());
request.setMessage(exchange.getIn().getBody(String.class));
request.setSubject(determineSubject(exchange));
LOG.trace("Sending request [{}] from exchange [{}]...", request, exchange);
PublishResult result = getEndpoint().getSNSClient().publish(request);
LOG.trace("Received result [{}]", result);
Message message = getMessageForResponse(exchange);
message.setHeader(SnsConstants.MESSAGE_ID, result.getMessageId());
}
private Message getMessageForResponse(Exchange exchange) {
if (exchange.getPattern().isOutCapable()) {
Message out = exchange.getOut();
out.copyFrom(exchange.getIn());
return out;
}
return exchange.getIn();
}
private String determineSubject(Exchange exchange) {
String subject = exchange.getIn().getHeader(SnsConstants.SUBJECT, String.class);
if (subject == null) {
subject = getConfiguration().getSubject();
}
return subject;
}
protected SnsConfiguration getConfiguration() {
return getEndpoint().getConfiguration();
}
@Override
public String toString() {
return "SnsProducer[" + URISupport.sanitizeUri(getEndpoint().getEndpointUri()) + "]";
}
@Override
public SnsEndpoint getEndpoint() {
return (SnsEndpoint) super.getEndpoint();
}
}