yandrey321 commented on code in PR #6613: URL: https://github.com/apache/ozone/pull/6613#discussion_r2492281391
########## hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/StreamBlockInputStream.java: ########## @@ -0,0 +1,443 @@ +/* + * 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.hadoop.hdds.scm.storage; + +import java.io.IOException; +import java.nio.ByteBuffer; +import java.util.concurrent.BlockingQueue; +import java.util.concurrent.LinkedBlockingQueue; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.concurrent.atomic.AtomicReference; +import java.util.function.Function; +import org.apache.commons.lang3.NotImplementedException; +import org.apache.hadoop.fs.ByteBufferReadable; +import org.apache.hadoop.fs.CanUnbuffer; +import org.apache.hadoop.fs.FSExceptionMessages; +import org.apache.hadoop.fs.Seekable; +import org.apache.hadoop.hdds.client.BlockID; +import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos; +import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos.ReadBlockResponseProto; +import org.apache.hadoop.hdds.scm.OzoneClientConfig; +import org.apache.hadoop.hdds.scm.StreamingReadResponse; +import org.apache.hadoop.hdds.scm.StreamingReaderSpi; +import org.apache.hadoop.hdds.scm.XceiverClientFactory; +import org.apache.hadoop.hdds.scm.XceiverClientSpi; +import org.apache.hadoop.hdds.scm.container.common.helpers.StorageContainerException; +import org.apache.hadoop.hdds.scm.pipeline.Pipeline; +import org.apache.hadoop.hdds.security.token.OzoneBlockTokenIdentifier; +import org.apache.hadoop.io.retry.RetryPolicy; +import org.apache.hadoop.ozone.common.Checksum; +import org.apache.hadoop.ozone.common.ChecksumData; +import org.apache.hadoop.ozone.common.OzoneChecksumException; +import org.apache.hadoop.security.token.Token; +import org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * An {@link java.io.InputStream} called from KeyInputStream to read a block from the + * container. + */ +public class StreamBlockInputStream extends BlockExtendedInputStream + implements Seekable, CanUnbuffer, ByteBufferReadable { + private static final Logger LOG = LoggerFactory.getLogger(StreamBlockInputStream.class); + private static final int EOF = -1; + private static final Throwable CANCELLED_EXCEPTION = new Throwable("Cancelled by client"); + + private final BlockID blockID; + private final long blockLength; + private final AtomicReference<Pipeline> pipelineRef = new AtomicReference<>(); + private final AtomicReference<Token<OzoneBlockTokenIdentifier>> tokenRef = new AtomicReference<>(); + private XceiverClientFactory xceiverClientFactory; + private XceiverClientSpi xceiverClient; + + private ByteBuffer buffer; + private long position = 0; + private boolean initialized = false; + private StreamingReader streamingReader; + + private final boolean verifyChecksum; + private final Function<BlockID, BlockLocationInfo> refreshFunction; + private final RetryPolicy retryPolicy; + private int retries = 0; + + public StreamBlockInputStream( + BlockID blockID, long length, Pipeline pipeline, + Token<OzoneBlockTokenIdentifier> token, + XceiverClientFactory xceiverClientFactory, + Function<BlockID, BlockLocationInfo> refreshFunction, + OzoneClientConfig config) throws IOException { + this.blockID = blockID; + this.blockLength = length; + pipelineRef.set(setPipeline(pipeline)); + tokenRef.set(token); + this.xceiverClientFactory = xceiverClientFactory; + this.verifyChecksum = config.isChecksumVerify(); + this.retryPolicy = getReadRetryPolicy(config); + this.refreshFunction = refreshFunction; + } + + @Override + public BlockID getBlockID() { + return blockID; + } + + @Override + public long getLength() { + return blockLength; + } + + @Override + public synchronized long getPos() { + return position; + } + + @Override + public synchronized int read() throws IOException { + checkOpen(); Review Comment: it would be good to have open telemetry trace here. -- This is an automated message from the Apache Git Service. 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