/*
* 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.nifi.processors.aws.sqs;
import java.io.ByteArrayOutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import org.apache.nifi.annotation.behavior.DynamicProperty;
import org.apache.nifi.annotation.behavior.InputRequirement;
import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
import org.apache.nifi.annotation.behavior.SupportsBatching;
import org.apache.nifi.annotation.documentation.CapabilityDescription;
import org.apache.nifi.annotation.documentation.SeeAlso;
import org.apache.nifi.annotation.documentation.Tags;
import org.apache.nifi.annotation.lifecycle.OnScheduled;
import org.apache.nifi.components.PropertyDescriptor;
import org.apache.nifi.flowfile.FlowFile;
import org.apache.nifi.processor.ProcessContext;
import org.apache.nifi.processor.ProcessSession;
import org.apache.nifi.processor.util.StandardValidators;
import com.amazonaws.services.sqs.AmazonSQSClient;
import com.amazonaws.services.sqs.model.MessageAttributeValue;
import com.amazonaws.services.sqs.model.SendMessageBatchRequest;
import com.amazonaws.services.sqs.model.SendMessageBatchRequestEntry;
@SupportsBatching
@SeeAlso({ GetSQS.class, DeleteSQS.class })
@InputRequirement(Requirement.INPUT_REQUIRED)
@Tags({"Amazon", "AWS", "SQS", "Queue", "Put", "Publish"})
@CapabilityDescription("Publishes a message to an Amazon Simple Queuing Service Queue")
@DynamicProperty(name = "The name of a Message Attribute to add to the message", value = "The value of the Message Attribute",
description = "Allows the user to add key/value pairs as Message Attributes by adding a property whose name will become the name of "
+ "the Message Attribute and value will become the value of the Message Attribute", supportsExpressionLanguage = true)
public class PutSQS extends AbstractSQSProcessor {
public static final PropertyDescriptor DELAY = new PropertyDescriptor.Builder()
.name("Delay")
.description("The amount of time to delay the message before it becomes available to consumers")
.required(true)
.addValidator(StandardValidators.TIME_PERIOD_VALIDATOR)
.defaultValue("0 secs")
.build();
public static final List<PropertyDescriptor> properties = Collections.unmodifiableList(
Arrays.asList(QUEUE_URL, ACCESS_KEY, SECRET_KEY, CREDENTIALS_FILE, AWS_CREDENTIALS_PROVIDER_SERVICE, REGION, DELAY, TIMEOUT, PROXY_HOST, PROXY_HOST_PORT));
private volatile List<PropertyDescriptor> userDefinedProperties = Collections.emptyList();
@Override
protected List<PropertyDescriptor> getSupportedPropertyDescriptors() {
return properties;
}
@Override
protected PropertyDescriptor getSupportedDynamicPropertyDescriptor(final String propertyDescriptorName) {
return new PropertyDescriptor.Builder()
.name(propertyDescriptorName)
.expressionLanguageSupported(true)
.required(false)
.dynamic(true)
.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
.build();
}
@OnScheduled
public void setup(final ProcessContext context) {
userDefinedProperties = new ArrayList<>();
for (final PropertyDescriptor descriptor : context.getProperties().keySet()) {
if (descriptor.isDynamic()) {
userDefinedProperties.add(descriptor);
}
}
}
@Override
public void onTrigger(final ProcessContext context, final ProcessSession session) {
FlowFile flowFile = session.get();
if (flowFile == null) {
return;
}
final long startNanos = System.nanoTime();
final AmazonSQSClient client = getClient();
final SendMessageBatchRequest request = new SendMessageBatchRequest();
final String queueUrl = context.getProperty(QUEUE_URL).evaluateAttributeExpressions(flowFile).getValue();
request.setQueueUrl(queueUrl);
final Set<SendMessageBatchRequestEntry> entries = new HashSet<>();
final SendMessageBatchRequestEntry entry = new SendMessageBatchRequestEntry();
entry.setId(flowFile.getAttribute("uuid"));
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
session.exportTo(flowFile, baos);
final String flowFileContent = baos.toString();
entry.setMessageBody(flowFileContent);
final Map<String, MessageAttributeValue> messageAttributes = new HashMap<>();
for (final PropertyDescriptor descriptor : userDefinedProperties) {
final MessageAttributeValue mav = new MessageAttributeValue();
mav.setDataType("String");
mav.setStringValue(context.getProperty(descriptor).evaluateAttributeExpressions(flowFile).getValue());
messageAttributes.put(descriptor.getName(), mav);
}
entry.setMessageAttributes(messageAttributes);
entry.setDelaySeconds(context.getProperty(DELAY).asTimePeriod(TimeUnit.SECONDS).intValue());
entries.add(entry);
request.setEntries(entries);
try {
client.sendMessageBatch(request);
} catch (final Exception e) {
getLogger().error("Failed to send messages to Amazon SQS due to {}; routing to failure", new Object[]{e});
flowFile = session.penalize(flowFile);
session.transfer(flowFile, REL_FAILURE);
return;
}
getLogger().info("Successfully published message to Amazon SQS for {}", new Object[]{flowFile});
session.transfer(flowFile, REL_SUCCESS);
final long transmissionMillis = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNanos);
session.getProvenanceReporter().send(flowFile, queueUrl, transmissionMillis);
}
}