| /* |
| * 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.common.fs; |
| |
| import java.io.DataInputStream; |
| import java.io.IOException; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| /** |
| * Keeps track of how many bytes were read from a DataInputStream. |
| */ |
| public class SizeAwareDataInputStream { |
| |
| private final DataInputStream dis; |
| private final AtomicInteger numberOfBytesRead; |
| |
| public SizeAwareDataInputStream(DataInputStream dis) { |
| this.dis = dis; |
| this.numberOfBytesRead = new AtomicInteger(0); |
| } |
| |
| public int readInt() throws IOException { |
| numberOfBytesRead.addAndGet(Integer.BYTES); |
| return dis.readInt(); |
| } |
| |
| public void readFully(byte[] b, int off, int len) throws IOException { |
| numberOfBytesRead.addAndGet(len); |
| dis.readFully(b, off, len); |
| } |
| |
| public void readFully(byte[] b) throws IOException { |
| numberOfBytesRead.addAndGet(b.length); |
| dis.readFully(b); |
| } |
| |
| public int skipBytes(int n) throws IOException { |
| numberOfBytesRead.addAndGet(n); |
| return dis.skipBytes(n); |
| } |
| |
| public void close() throws IOException { |
| dis.close(); |
| } |
| |
| public Integer getNumberOfBytesRead() { |
| return numberOfBytesRead.get(); |
| } |
| } |