Package org.elasticsearch.index.snapshots.blobstore

Class SlicedInputStream

java.lang.Object
java.io.InputStream
org.elasticsearch.index.snapshots.blobstore.SlicedInputStream
All Implemented Interfaces:
java.io.Closeable, java.lang.AutoCloseable
public abstract class SlicedInputStream
extends java.io.InputStream
A SlicedInputStream is a logical concatenation one or more input streams. In contrast to the JDKs SequenceInputStream this stream doesn't require the instantiation of all logical sub-streams ahead of time. Instead, openSlice(long) is called if a new slice is required. Each slice is closed once it's been fully consumed or if close is called before.

  • Constructor Summary

    Constructors 
    Modifier Constructor Description
    protected SlicedInputStream​(long numSlices)
    Creates a new SlicedInputStream

  • Method Summary

    Modifier and Type Method Description
    int available()  
    void close()  
    protected abstract java.io.InputStream openSlice​(long slice)
    Called for each logical slice given a zero based slice ordinal.
    int read()  
    int read​(byte[] buffer, int offset, int length)  

    Methods inherited from class java.io.InputStream

    mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, reset, skip, skipNBytes, transferTo

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • SlicedInputStream

      protected SlicedInputStream​(long numSlices)
      Creates a new SlicedInputStream
      Parameters:
      numSlices - the number of slices to consume

  • Method Details

    • openSlice

      protected abstract java.io.InputStream openSlice​(long slice) throws java.io.IOException
      Called for each logical slice given a zero based slice ordinal.
      Throws:
      java.io.IOException

    • read

      public final int read() throws java.io.IOException
      Specified by:
      read in class java.io.InputStream
      Throws:
      java.io.IOException

    • read

      public final int read​(byte[] buffer, int offset, int length) throws java.io.IOException
      Overrides:
      read in class java.io.InputStream
      Throws:
      java.io.IOException

    • close

      public final void close() throws java.io.IOException
      Specified by:
      close in interface java.lang.AutoCloseable
      Specified by:
      close in interface java.io.Closeable
      Overrides:
      close in class java.io.InputStream
      Throws:
      java.io.IOException

    • available

      public final int available() throws java.io.IOException
      Overrides:
      available in class java.io.InputStream
      Throws:
      java.io.IOException