justinwwhuang commented on code in PR #9133: URL: https://github.com/apache/inlong/pull/9133#discussion_r1373994808
########## inlong-agent/agent-common/src/main/java/org/apache/inlong/agent/message/filecollect/ProxyMessageCache.java: ########## @@ -0,0 +1,184 @@ +/* + * 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.inlong.agent.message.filecollect; + +import org.apache.inlong.agent.conf.InstanceProfile; +import org.apache.inlong.agent.constant.TaskConstants; +import org.apache.inlong.agent.message.ProxyMessage; +import org.apache.inlong.agent.utils.AgentUtils; +import org.apache.inlong.common.msg.AttributeConstants; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.concurrent.LinkedBlockingQueue; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicLong; + +import static org.apache.inlong.agent.constant.CommonConstants.DEFAULT_PROXY_INLONG_STREAM_ID_QUEUE_MAX_NUMBER; +import static org.apache.inlong.agent.constant.CommonConstants.DEFAULT_PROXY_PACKAGE_MAX_SIZE; +import static org.apache.inlong.agent.constant.CommonConstants.DEFAULT_PROXY_PACKAGE_MAX_TIMEOUT_MS; +import static org.apache.inlong.agent.constant.CommonConstants.PROXY_INLONG_STREAM_ID_QUEUE_MAX_NUMBER; +import static org.apache.inlong.agent.constant.CommonConstants.PROXY_PACKAGE_MAX_SIZE; +import static org.apache.inlong.agent.constant.CommonConstants.PROXY_PACKAGE_MAX_TIMEOUT_MS; + +/** + * Handle List of BusMessage, which belong to the same stream id. + */ +public class ProxyMessageCache { + + private static final Logger LOGGER = LoggerFactory.getLogger(ProxyMessageCache.class); + + private final String groupId; + private final String streamId; + private final String taskId; + private final String instanceId; + private final int maxPackSize; + private final int maxQueueNumber; + private final String inodeInfo; + // ms + private final int cacheTimeout; + // streamId -> list of proxyMessage + private final LinkedBlockingQueue<ProxyMessage> messageQueue; + private final AtomicLong cacheSize = new AtomicLong(0); + private Long packageIndex = 0L; + private long lastPrintTime = 0; + /** + * extra map used when sending to dataproxy + */ + private Map<String, String> extraMap = new HashMap<>(); + + /** + * Init PackBusMessage + */ + public ProxyMessageCache(InstanceProfile instanceProfile, String groupId, String streamId) { + this.taskId = instanceProfile.getTaskId(); + this.instanceId = instanceProfile.getInstanceId(); + this.maxPackSize = instanceProfile.getInt(PROXY_PACKAGE_MAX_SIZE, DEFAULT_PROXY_PACKAGE_MAX_SIZE); + this.maxQueueNumber = instanceProfile.getInt(PROXY_INLONG_STREAM_ID_QUEUE_MAX_NUMBER, + DEFAULT_PROXY_INLONG_STREAM_ID_QUEUE_MAX_NUMBER); + this.cacheTimeout = instanceProfile.getInt(PROXY_PACKAGE_MAX_TIMEOUT_MS, DEFAULT_PROXY_PACKAGE_MAX_TIMEOUT_MS); + // double size of package + this.messageQueue = new LinkedBlockingQueue<>(maxQueueNumber); + this.groupId = groupId; + this.streamId = streamId; + this.inodeInfo = instanceProfile.get(TaskConstants.INODE_INFO); + extraMap.put(AttributeConstants.MESSAGE_SYNC_SEND, "false"); + } + + public void generateExtraMap(String dataKey) { + this.extraMap.put(AttributeConstants.MESSAGE_PARTITION_KEY, dataKey); + } + + /** + * Check whether queue is nearly full + * + * @return true if is nearly full else false. + */ + private boolean queueIsFull() { + return messageQueue.size() >= maxQueueNumber - 1; + } + + /** + * Add proxy message to cache, proxy message should belong to the same stream id. + */ + public boolean addProxyMessage(ProxyMessage message) { + assert streamId.equals(message.getInlongStreamId()); + try { + if (queueIsFull()) { + if (AgentUtils.getCurrentTime() - lastPrintTime > TimeUnit.SECONDS.toMillis(1)) { + lastPrintTime = AgentUtils.getCurrentTime(); + LOGGER.warn("message queue is greater than {}, stop adding message, " + + "maybe proxy get stuck", maxQueueNumber); + } + return false; + } + messageQueue.put(message); + cacheSize.addAndGet(message.getBody().length); + return true; + } catch (Exception ex) { + LOGGER.error("exception caught", ex); + } + return false; + } + + /** + * check message queue is empty or not + */ + public boolean isEmpty() { + return messageQueue.isEmpty(); + } + + /** + * Fetch batch of proxy message, timeout message or max number of list satisfied. + * + * @return map of message list, key is stream id for the batch; return null if there are no valid messages. + */ + public SenderMessage fetchSenderMessage() { + int resultBatchSize = 0; + List<byte[]> bodyList = new ArrayList<>(); + Long packageOffset = TaskConstants.DEFAULT_OFFSET; + while (!messageQueue.isEmpty()) { + // pre check message size + ProxyMessage peekMessage = messageQueue.peek(); + int peekMessageLength = peekMessage.getBody().length; + if (resultBatchSize + peekMessageLength > maxPackSize) { + break; + } + ProxyMessage message = messageQueue.remove(); Review Comment: one thread only -- This is an automated message from the Apache Git Service. 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