/**
* 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.kinesis;
import com.amazonaws.services.kinesis.AmazonKinesis;
import com.amazonaws.services.kinesis.model.Record;
import com.amazonaws.services.kinesis.model.ShardIteratorType;
import org.apache.camel.Consumer;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.Producer;
import org.apache.camel.impl.ScheduledPollEndpoint;
import org.apache.camel.spi.Metadata;
import org.apache.camel.spi.UriEndpoint;
import org.apache.camel.spi.UriParam;
import org.apache.camel.spi.UriPath;
/**
* The aws-kinesis component is for consuming and producing records from Amazon Kinesis Streams.
*/
@UriEndpoint(firstVersion = "2.17.0", scheme = "aws-kinesis", title = "AWS Kinesis", syntax = "aws-kinesis:streamName",
consumerClass = KinesisConsumer.class, label = "cloud,messaging")
public class KinesisEndpoint extends ScheduledPollEndpoint {
@UriPath(description = "Name of the stream")
@Metadata(required = "true")
private String streamName;
@UriParam(description = "Amazon Kinesis client to use for all requests for this endpoint")
@Metadata(required = "true")
private AmazonKinesis amazonKinesisClient;
@UriParam(label = "consumer", description = "Maximum number of records that will be fetched in each poll", defaultValue = "1")
private int maxResultsPerRequest = 1;
@UriParam(label = "consumer", description = "Defines where in the Kinesis stream to start getting records", defaultValue = "TRIM_HORIZON")
private ShardIteratorType iteratorType = ShardIteratorType.TRIM_HORIZON;
@UriParam(label = "consumer", description = "Defines which shardId in the Kinesis stream to get records from")
private String shardId = "";
@UriParam(label = "consumer", description = "The sequence number to start polling from. Required if iteratorType is set to AFTER_SEQUENCE_NUMBER or AT_SEQUENCE_NUMBER")
private String sequenceNumber = "";
public KinesisEndpoint(String uri, String streamName, KinesisComponent component) {
super(uri, component);
this.streamName = streamName;
}
@Override
protected void doStart() throws Exception {
if ((iteratorType.equals(ShardIteratorType.AFTER_SEQUENCE_NUMBER) || iteratorType.equals(ShardIteratorType.AT_SEQUENCE_NUMBER)) && sequenceNumber.isEmpty()) {
throw new IllegalArgumentException("Sequence Number must be specified with iterator Types AFTER_SEQUENCE_NUMBER or AT_SEQUENCE_NUMBER");
}
super.doStart();
}
@Override
public Producer createProducer() throws Exception {
return new KinesisProducer(this);
}
@Override
public Consumer createConsumer(Processor processor) throws Exception {
final KinesisConsumer consumer = new KinesisConsumer(this, processor);
consumer.setSchedulerProperties(getSchedulerProperties());
configureConsumer(consumer);
return consumer;
}
public Exchange createExchange(Record record) {
Exchange exchange = super.createExchange();
exchange.getIn().setBody(record);
exchange.getIn().setHeader(KinesisConstants.APPROX_ARRIVAL_TIME, record.getApproximateArrivalTimestamp());
exchange.getIn().setHeader(KinesisConstants.PARTITION_KEY, record.getPartitionKey());
exchange.getIn().setHeader(KinesisConstants.SEQUENCE_NUMBER, record.getSequenceNumber());
return exchange;
}
@Override
public boolean isSingleton() {
return true;
}
AmazonKinesis getClient() {
return amazonKinesisClient;
}
// required for injection.
public AmazonKinesis getAmazonKinesisClient() {
return amazonKinesisClient;
}
public void setAmazonKinesisClient(AmazonKinesis amazonKinesisClient) {
this.amazonKinesisClient = amazonKinesisClient;
}
public int getMaxResultsPerRequest() {
return maxResultsPerRequest;
}
public void setMaxResultsPerRequest(int maxResultsPerRequest) {
this.maxResultsPerRequest = maxResultsPerRequest;
}
public String getStreamName() {
return streamName;
}
public void setStreamName(String streamName) {
this.streamName = streamName;
}
public ShardIteratorType getIteratorType() {
return iteratorType;
}
public void setIteratorType(ShardIteratorType iteratorType) {
this.iteratorType = iteratorType;
}
public String getShardId() {
return shardId;
}
public void setShardId(String shardId) {
this.shardId = shardId;
}
public String getSequenceNumber() {
return sequenceNumber;
}
public void setSequenceNumber(String sequenceNumber) {
this.sequenceNumber = sequenceNumber;
}
}