public class InMemoryRandomAccessFile extends RandomAccessFile
allFiles, BIG_ENDIAN, bigEndian, buffer, bufferStart, dataEnd, dataSize, debugAccess, debugLeaks, defaultBufferSize, endOfFile, file, fileChannel, filePosition, LITTLE_ENDIAN, location, openFiles, readonly, showOpen, showRead| Constructor and Description |
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InMemoryRandomAccessFile(java.lang.String name,
byte[] data)
A RandomAccessFile stored entirely in memory as a byte array.
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| Modifier and Type | Method and Description |
|---|---|
long |
length()
Get the length of the file.
|
protected int |
read_(long pos,
byte[] b,
int offset,
int len)
Read directly from file, without going through the buffer.
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long |
readToByteChannel(java.nio.channels.WritableByteChannel dest,
long offset,
long nbytes)
Read
nbytes bytes, at the specified file offset, send to a WritableByteChannel. |
void |
setBufferSize(int bufferSize)
Set the buffer size.
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close, flush, getAllFiles, getBufferSize, getDebugLeaks, getDebugNbytes, getDebugNseeks, getFD, getFilePointer, getLocation, getOpenFiles, getRandomAccessFile, isAtEndOfFile, order, read, read, read, readBoolean, readBuffer, readByte, readBytes, readBytes, readChar, readDouble, readDouble, readFloat, readFloat, readFully, readFully, readInt, readInt, readIntUnbuffered, readLine, readLong, readLong, readShort, readShort, readString, readUnsignedByte, readUnsignedShort, readUTF, searchForward, seek, setDebugAccess, setDebugLeaks, setExtendMode, setMinLength, skipBytes, toString, unread, write, write, write, writeBoolean, writeBoolean, writeByte, writeBytes, writeBytes, writeBytes, writeChar, writeChar, writeChars, writeDouble, writeDouble, writeFloat, writeFloat, writeInt, writeInt, writeLong, writeLong, writeShort, writeShort, writeUTFpublic InMemoryRandomAccessFile(java.lang.String name,
byte[] data)
name - used as the locationdata - the complete data filepublic long length()
RandomAccessFilelength in class RandomAccessFilepublic void setBufferSize(int bufferSize)
RandomAccessFilesetBufferSize in class RandomAccessFilebufferSize - length in bytesprotected int read_(long pos,
byte[] b,
int offset,
int len)
throws java.io.IOException
RandomAccessFileread_ in class RandomAccessFilepos - start here in the fileb - put data into this bufferoffset - buffer offsetlen - this number of bytesjava.io.IOException - on io errorpublic long readToByteChannel(java.nio.channels.WritableByteChannel dest,
long offset,
long nbytes)
throws java.io.IOException
RandomAccessFilenbytes bytes, at the specified file offset, send to a WritableByteChannel.
This will block until all bytes are read.
This uses the underlying file channel directly, bypassing all user buffers.readToByteChannel in class RandomAccessFiledest - write to this WritableByteChannel.offset - the offset in the file where copying will start.nbytes - the number of bytes to read.java.io.IOException - if an I/O error occurs.