Module openj9.dtfj

Package com.ibm.j9ddr.corereaders

Class ClosingFileReader

java.lang.Object

javax.imageio.stream.ImageInputStreamImpl

javax.imageio.stream.FileImageInputStream

com.ibm.j9ddr.corereaders.ClosingFileReader

All Implemented Interfaces:

Closeable, DataInput, AutoCloseable, ImageInputStream

public class ClosingFileReader
extends FileImageInputStream

A wrapper around the functionality that we require from RandomAccessFiles but with the added auto-closing functionality that we require. Since it is not always easy to determine who "owns" a file and we do not want to introduce the concept of state, this class will manage all such file ownership. We now also extend javax.imageio.stream.ImageInputStreamImpl as a convenient common interface that we can share with the zebedee corefile reader.

Field Summary

Fields declared in class javax.imageio.stream.ImageInputStreamImpl

bitOffset, byteOrder, flushedPos, streamPos

Constructor Summary

Constructors

Constructor	Description
ClosingFileReader(File file)
ClosingFileReader(File file, ByteOrder endian)	Create a closing file reader with the given endianness which can close/delete the backing file on shutdown

Method Summary

Methods declared in class javax.imageio.stream.FileImageInputStream

close, finalize, length, read, read, seek

Methods declared in class javax.imageio.stream.ImageInputStreamImpl

checkClosed, flush, flushBefore, getBitOffset, getByteOrder, getFlushedPosition, getStreamPosition, isCached, isCachedFile, isCachedMemory, mark, read, readBit, readBits, readBoolean, readByte, readBytes, readChar, readDouble, readFloat, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedInt, readUnsignedShort, readUTF, reset, setBitOffset, setByteOrder, skipBytes, skipBytes

Methods declared in class java.lang.Object

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

Constructor Details

ClosingFileReader

public ClosingFileReader(File file)
                  throws FileNotFoundException,
IOException

Throws:

FileNotFoundException

IOException

ClosingFileReader

public ClosingFileReader(File file,
 ByteOrder endian)
                  throws FileNotFoundException,
IOException

Create a closing file reader with the given endianness which can close/delete the backing file on shutdown

Parameters:

file -

deleteOnCloseOrExit - Whether to delete the file when the file is closed or at shutdown

endian - ther

Throws:

FileNotFoundException

IOException