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https://issues.apache.org/jira/browse/HUDI-1897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17398407#comment-17398407
]
ASF GitHub Bot commented on HUDI-1897:
--------------------------------------
codope commented on a change in pull request #3433:
URL: https://github.com/apache/hudi/pull/3433#discussion_r688206771
##########
File path:
hudi-utilities/src/main/java/org/apache/hudi/utilities/sources/helpers/CloudObjectsSelector.java
##########
@@ -0,0 +1,285 @@
+/*
+ * 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.hudi.utilities.sources.helpers;
+
+import org.apache.hudi.DataSourceUtils;
+import org.apache.hudi.common.config.TypedProperties;
+
+import com.amazonaws.regions.Regions;
+import com.amazonaws.services.sqs.AmazonSQS;
+import com.amazonaws.services.sqs.AmazonSQSClientBuilder;
+import com.amazonaws.services.sqs.model.BatchResultErrorEntry;
+import com.amazonaws.services.sqs.model.DeleteMessageBatchRequest;
+import com.amazonaws.services.sqs.model.DeleteMessageBatchRequestEntry;
+import com.amazonaws.services.sqs.model.DeleteMessageBatchResult;
+import com.amazonaws.services.sqs.model.GetQueueAttributesRequest;
+import com.amazonaws.services.sqs.model.GetQueueAttributesResult;
+import com.amazonaws.services.sqs.model.Message;
+import com.amazonaws.services.sqs.model.ReceiveMessageRequest;
+import org.apache.log4j.LogManager;
+import org.apache.log4j.Logger;
+import org.json.JSONObject;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
+import java.time.Instant;
+import java.time.format.DateTimeFormatter;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+/**
+ * Cloud Objects Selector Class. This class has methods for processing cloud
objects. It currently
+ * supports only AWS S3 objects and AWS SQS queue.
+ */
+public class CloudObjectsSelector {
+ public static final List<String> ALLOWED_S3_EVENT_PREFIX =
+ Collections.singletonList("ObjectCreated");
+ public static volatile Logger log =
LogManager.getLogger(CloudObjectsSelector.class);
+ public final String queueUrl;
+ public final int longPollWait;
+ public final int maxMessagesEachRequest;
+ public final int maxMessageEachBatch;
+ public final int visibilityTimeout;
+ public final TypedProperties props;
+ public final String fsName;
+ private final String regionName;
+
+ /**
+ * Cloud Objects Selector Class. {@link CloudObjectsSelector}
+ */
+ public CloudObjectsSelector(TypedProperties props) {
+ DataSourceUtils.checkRequiredProperties(props,
Arrays.asList(Config.QUEUE_URL_PROP, Config.QUEUE_REGION));
+ this.props = props;
+ this.queueUrl = props.getString(Config.QUEUE_URL_PROP);
+ this.regionName = props.getString(Config.QUEUE_REGION);
+ this.fsName = props.getString(Config.SOURCE_QUEUE_FS_PROP,
"s3").toLowerCase();
+ this.longPollWait = props.getInteger(Config.QUEUE_LONGPOLLWAIT_PROP, 20);
+ this.maxMessageEachBatch =
props.getInteger(Config.QUEUE_MAXMESSAGESEACHBATCH_PROP, 5);
+ this.visibilityTimeout =
props.getInteger(Config.QUEUE_VISIBILITYTIMEOUT_PROP, 30);
+ this.maxMessagesEachRequest = 10;
+ }
+
+ /**
+ * Get SQS queue attributes.
+ *
+ * @param sqsClient AWSClient for sqsClient
+ * @param queueUrl queue full url
+ * @return map of attributes needed
+ */
+ protected Map<String, String> getSqsQueueAttributes(AmazonSQS sqsClient,
String queueUrl) {
+ GetQueueAttributesResult queueAttributesResult =
+ sqsClient.getQueueAttributes(
+ new GetQueueAttributesRequest(queueUrl)
+ .withAttributeNames("ApproximateNumberOfMessages"));
+ return queueAttributesResult.getAttributes();
+ }
+
+ /**
+ * Get the file attributes filePath, eventTime and size from JSONObject
record.
+ *
+ * @param record of object event
+ * @return map of file attribute
+ */
+ protected Map<String, Object> getFileAttributesFromRecord(JSONObject record)
+ throws UnsupportedEncodingException {
+
+ Map<String, Object> fileRecord = new HashMap<>();
+ String eventTimeStr = record.getString("eventTime");
+ long eventTime =
+
Date.from(Instant.from(DateTimeFormatter.ISO_INSTANT.parse(eventTimeStr))).getTime();
+
+ JSONObject s3Object = record.getJSONObject("s3").getJSONObject("object");
+ String bucket =
+ URLDecoder.decode(
+
record.getJSONObject("s3").getJSONObject("bucket").getString("name"), "UTF-8");
+ String key = URLDecoder.decode(s3Object.getString("key"), "UTF-8");
+ String filePath = this.fsName + "://" + bucket + "/" + key;
+
+ fileRecord.put("eventTime", eventTime);
+ fileRecord.put("fileSize", s3Object.getLong("size"));
+ fileRecord.put("filePath", filePath);
+ return fileRecord;
+ }
+
+ /**
+ * Amazon SQS Client Builder.
+ */
+ public AmazonSQS createAmazonSqsClient() {
+ return
AmazonSQSClientBuilder.standard().withRegion(Regions.fromName(regionName)).build();
+ }
+
+ /**
+ * List messages from queue.
+ */
+ protected List<Message> getMessagesToProcess(
+ AmazonSQS sqsClient,
+ String queueUrl,
+ ReceiveMessageRequest receiveMessageRequest,
+ int maxMessageEachBatch,
+ int maxMessagesEachRequest) {
+ List<Message> messagesToProcess = new ArrayList<>();
+
+ // Get count for available messages
+ Map<String, String> queueAttributesResult =
getSqsQueueAttributes(sqsClient, queueUrl);
+ long approxMessagesAvailable =
+
Long.parseLong(queueAttributesResult.get("ApproximateNumberOfMessages"));
+ log.info("Approx. " + approxMessagesAvailable + " messages available in
queue.");
+
+ for (int i = 0;
+ i < (int) Math.ceil((double) approxMessagesAvailable /
maxMessagesEachRequest);
+ ++i) {
+ List<Message> messages =
sqsClient.receiveMessage(receiveMessageRequest).getMessages();
+ log.debug("Messages size: " + messages.size());
+
+ for (Message message : messages) {
+ log.debug("message id: " + message.getMessageId());
+ messagesToProcess.add(message);
+ }
+ log.debug("total fetched messages size: " + messagesToProcess.size());
+ if (messages.isEmpty() || (messagesToProcess.size() >=
maxMessageEachBatch)) {
+ break;
+ }
+ }
+ return messagesToProcess;
+ }
+
+ /**
+ * create partitions of list using specific batch size. we can't use third
party API for this
+ * functionality, due to
https://github.com/apache/hudi/blob/master/style/checkstyle.xml#L270
+ */
+ protected List<List<Message>> createListPartitions(List<Message> singleList,
int eachBatchSize) {
+ List<List<Message>> listPartitions = new ArrayList<>();
+
+ if (singleList.size() == 0 || eachBatchSize < 1) {
+ return listPartitions;
+ }
+
+ for (int start = 0; start < singleList.size(); start += eachBatchSize) {
+ int end = Math.min(start + eachBatchSize, singleList.size());
+
+ if (start > end) {
+ throw new IndexOutOfBoundsException(
+ "Index " + start + " is out of the list range <0," +
(singleList.size() - 1) + ">");
+ }
+ listPartitions.add(new ArrayList<>(singleList.subList(start, end)));
+ }
+ return listPartitions;
+ }
+
+ /**
+ * delete batch of messages from queue.
+ */
+ protected void deleteBatchOfMessages(
+ AmazonSQS sqs, String queueUrl, List<Message> messagesToBeDeleted) {
+ DeleteMessageBatchRequest deleteBatchReq =
+ new DeleteMessageBatchRequest().withQueueUrl(queueUrl);
+ List<DeleteMessageBatchRequestEntry> deleteEntries =
deleteBatchReq.getEntries();
+
+ for (Message message : messagesToBeDeleted) {
+ deleteEntries.add(
+ new DeleteMessageBatchRequestEntry()
+ .withId(message.getMessageId())
+ .withReceiptHandle(message.getReceiptHandle()));
+ }
+ DeleteMessageBatchResult deleteResult =
sqs.deleteMessageBatch(deleteBatchReq);
+ List<String> deleteFailures =
+ deleteResult.getFailed().stream()
+ .map(BatchResultErrorEntry::getId)
+ .collect(Collectors.toList());
+ System.out.println("Delete is" + deleteFailures.isEmpty() + "or ignoring
it.");
+ if (!deleteFailures.isEmpty()) {
+ log.warn(
+ "Failed to delete "
+ + deleteFailures.size()
+ + " messages out of "
+ + deleteEntries.size()
+ + " from queue.");
+ } else {
+ log.info("Successfully deleted " + deleteEntries.size() + " messages
from queue.");
+ }
+ }
+
+ /**
+ * Delete Queue Messages after hudi commit. This method will be invoked by
source.onCommit.
+ */
+ public void onCommitDeleteProcessedMessages(
+ AmazonSQS sqs, String queueUrl, List<Message> processedMessages) {
+
+ if (!processedMessages.isEmpty()) {
+
+ // create batch for deletion, SES DeleteMessageBatchRequest only accept
max 10 entries
+ List<List<Message>> deleteBatches =
createListPartitions(processedMessages, 10);
+ for (List<Message> deleteBatch : deleteBatches) {
+ deleteBatchOfMessages(sqs, queueUrl, deleteBatch);
+ }
+ }
+ }
+
+ /**
+ * Configs supported.
+ */
+ public static class Config {
+ /**
+ * {@value #QUEUE_URL_PROP} is the queue url for cloud object events.
+ */
+ public static final String QUEUE_URL_PROP =
"hoodie.deltastreamer.source.queue.url";
Review comment:
Sounds good. I'll change it.
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> Implement DeltaStreamer Source for AWS S3
> -----------------------------------------
>
> Key: HUDI-1897
> URL: https://issues.apache.org/jira/browse/HUDI-1897
> Project: Apache Hudi
> Issue Type: Sub-task
> Components: DeltaStreamer
> Reporter: Raymond Xu
> Priority: Critical
> Labels: pull-request-available
>
> Consider
> [https://docs.aws.amazon.com/AmazonS3/latest/userguide/NotificationHowTo.html]
> andÂ
> https://docs.databricks.com/spark/latest/structured-streaming/sqs.html
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