| /* |
| * 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.iotdb.commons.pipe.task.meta; |
| |
| import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils; |
| |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.locks.ReentrantReadWriteLock; |
| |
| public class PipeMetaKeeper { |
| |
| protected final Map<String, PipeMeta> pipeNameToPipeMetaMap; |
| |
| private final ReentrantReadWriteLock pipeMetaKeeperLock; |
| |
| public PipeMetaKeeper() { |
| pipeNameToPipeMetaMap = new ConcurrentHashMap<>(); |
| pipeMetaKeeperLock = new ReentrantReadWriteLock(true); |
| } |
| |
| ///////////////////////////////// Lock ///////////////////////////////// |
| |
| public void acquireReadLock() { |
| pipeMetaKeeperLock.readLock().lock(); |
| } |
| |
| public boolean tryReadLock(long timeOut) throws InterruptedException { |
| return pipeMetaKeeperLock.readLock().tryLock(timeOut, TimeUnit.SECONDS); |
| } |
| |
| public void releaseReadLock() { |
| pipeMetaKeeperLock.readLock().unlock(); |
| } |
| |
| public void acquireWriteLock() { |
| pipeMetaKeeperLock.writeLock().lock(); |
| } |
| |
| public boolean tryWriteLock(long timeOut) throws InterruptedException { |
| return pipeMetaKeeperLock.writeLock().tryLock(timeOut, TimeUnit.SECONDS); |
| } |
| |
| public void releaseWriteLock() { |
| pipeMetaKeeperLock.writeLock().unlock(); |
| } |
| |
| ///////////////////////////////// PipeMeta ///////////////////////////////// |
| |
| public void addPipeMeta(String pipeName, PipeMeta pipeMeta) { |
| pipeNameToPipeMetaMap.put(pipeName, pipeMeta); |
| } |
| |
| public PipeMeta getPipeMeta(String pipeName) { |
| return pipeNameToPipeMetaMap.get(pipeName); |
| } |
| |
| public void removePipeMeta(String pipeName) { |
| pipeNameToPipeMetaMap.remove(pipeName); |
| } |
| |
| public boolean containsPipeMeta(String pipeName) { |
| return pipeNameToPipeMetaMap.containsKey(pipeName); |
| } |
| |
| public Iterable<PipeMeta> getPipeMetaList() { |
| return pipeNameToPipeMetaMap.values(); |
| } |
| |
| public int getPipeMetaCount() { |
| return pipeNameToPipeMetaMap.size(); |
| } |
| |
| public PipeMeta getPipeMetaByPipeName(String pipeName) { |
| return pipeNameToPipeMetaMap.get(pipeName); |
| } |
| |
| public void clear() { |
| this.pipeNameToPipeMetaMap.clear(); |
| } |
| |
| public boolean isEmpty() { |
| return pipeNameToPipeMetaMap.isEmpty(); |
| } |
| |
| ///////////////////////////////// Snapshot ///////////////////////////////// |
| |
| public void processTakeSnapshot(FileOutputStream fileOutputStream) throws IOException { |
| ReadWriteIOUtils.write(pipeNameToPipeMetaMap.size(), fileOutputStream); |
| for (Map.Entry<String, PipeMeta> entry : pipeNameToPipeMetaMap.entrySet()) { |
| ReadWriteIOUtils.write(entry.getKey(), fileOutputStream); |
| entry.getValue().serialize(fileOutputStream); |
| } |
| } |
| |
| public void processLoadSnapshot(FileInputStream fileInputStream) throws IOException { |
| clear(); |
| |
| final int size = ReadWriteIOUtils.readInt(fileInputStream); |
| for (int i = 0; i < size; i++) { |
| final String pipeName = ReadWriteIOUtils.readString(fileInputStream); |
| pipeNameToPipeMetaMap.put(pipeName, PipeMeta.deserialize(fileInputStream)); |
| } |
| } |
| |
| ///////////////////////////////// Override ///////////////////////////////// |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| PipeMetaKeeper that = (PipeMetaKeeper) o; |
| return Objects.equals(pipeNameToPipeMetaMap, that.pipeNameToPipeMetaMap); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(pipeNameToPipeMetaMap); |
| } |
| |
| @Override |
| public String toString() { |
| return "PipeMetaKeeper{" + "pipeNameToPipeMetaMap=" + pipeNameToPipeMetaMap + '}'; |
| } |
| |
| //////////////////////////// APIs provided for metric framework //////////////////////////// |
| |
| public long runningPipeCount() { |
| return pipeNameToPipeMetaMap.values().stream() |
| .filter(pipeMeta -> PipeStatus.RUNNING.equals(pipeMeta.getRuntimeMeta().getStatus().get())) |
| .count(); |
| } |
| |
| public long droppedPipeCount() { |
| return pipeNameToPipeMetaMap.values().stream() |
| .filter(pipeMeta -> PipeStatus.DROPPED.equals(pipeMeta.getRuntimeMeta().getStatus().get())) |
| .count(); |
| } |
| |
| public long userStoppedPipeCount() { |
| return pipeNameToPipeMetaMap.values().stream() |
| .filter( |
| pipeMeta -> |
| PipeStatus.STOPPED.equals(pipeMeta.getRuntimeMeta().getStatus().get()) |
| && !pipeMeta.getRuntimeMeta().getIsStoppedByRuntimeException()) |
| .count(); |
| } |
| |
| public long exceptionStoppedPipeCount() { |
| return pipeNameToPipeMetaMap.values().stream() |
| .filter( |
| pipeMeta -> |
| PipeStatus.STOPPED.equals(pipeMeta.getRuntimeMeta().getStatus().get()) |
| && pipeMeta.getRuntimeMeta().getIsStoppedByRuntimeException()) |
| .count(); |
| } |
| } |