?? fsinputstream.java
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/** * Copyright 2005 The Apache Software Foundation * * Licensed 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.fs;import java.io.*;/**************************************************************** * FSInputStream is a generic old InputStream with a little bit * of RAF-style seek ability. * * @author Mike Cafarella *****************************************************************/public abstract class FSInputStream extends InputStream implements Seekable { /** * Seek to the given offset from the start of the file. * The next read() will be from that location. Can't * seek past the end of the file. */ public abstract void seek(long pos) throws IOException; /** * Return the current offset from the start of the file */ public abstract long getPos() throws IOException;}
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