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java.lang.Objectucar.unidata.io.RandomAccessFile
ucar.unidata.io.InMemoryRandomAccessFile
public class InMemoryRandomAccessFile
A RandomAccessFile stored entirely in memory as a byte array.
Field Summary |
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Fields inherited from class ucar.unidata.io.RandomAccessFile |
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BIG_ENDIAN, LITTLE_ENDIAN |
Constructor Summary | |
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InMemoryRandomAccessFile(java.lang.String name,
byte[] data)
A RandomAccessFile stored entirely in memory as a byte array. |
Method Summary | |
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long |
length()
Get the length of the file. |
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. |
Methods inherited from class ucar.unidata.io.RandomAccessFile |
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close, flush, getBufferSize, getDebugLeaks, getFD, getFilePointer, getLocation, getOpenFiles, getRandomAccessFile, isAtEndOfFile, order, read, read, read, readBoolean, readByte, 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, writeUTF |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public InMemoryRandomAccessFile(java.lang.String name, byte[] data)
name
- used as the locationdata
- the complete data fileMethod Detail |
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public long length()
RandomAccessFile
length
in class RandomAccessFile
public void setBufferSize(int bufferSize)
RandomAccessFile
setBufferSize
in class RandomAccessFile
bufferSize
- length in bytespublic long readToByteChannel(java.nio.channels.WritableByteChannel dest, long offset, long nbytes) throws java.io.IOException
RandomAccessFile
nbytes
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 RandomAccessFile
dest
- 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.
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