org.rrd4j.core.jrrd.RRDFile

All Implemented Interfaces:: Constants

class RRDFile
extends Object
implements Constants

This class is used read information from an RRD file. Writing to RRD files is not currently supported. It uses NIO's RandomAccessFile to read the file Currently this can read RRD files that were generated on Solaris (Sparc) and Linux (x86).

Version:: $Revision: 1.1 $
Author:: Ciaran Treanor

Field Summary

Fields inherited from interface org.rrd4j.core.jrrd.Constants
CF_NAM_SIZE, COOKIE, DS_NAM_SIZE, DST_SIZE, FLOAT_COOKIE, LAST_DS_LEN, MAX_SUPPORTED_VERSION, SIZE_OF_DOUBLE, UNDEFINED_VERSION, UNDEFINED_VERSION_AS_INT, VERSION_WITH_LAST_UPDATE_SEC
Constructor Summary

Constructors

Constructor Description

RRDFile(File file)

RRDFile(String name)

Method Summary

Modifier and Type	Method	Description
`(package private) int`	`align()`
`(package private) int`	`align(int boundary)`
`(package private) void`	`close()`
`(package private) int`	`getAlignment()`
`(package private) int`	`getBits()`
`(package private) long`	`getFilePointer()`
`(package private) UnivalArray`	`getUnivalArray(int size)`
`(package private) long`	`info()`
`(package private) boolean`	`isBigEndian()`
`(package private) void`	`read(ByteBuffer bb)`
`(package private) double`	`readDouble()`
`(package private) int`	`readInt()`
`(package private) int`	`readLong()`
`(package private) String`	`readString(int maxLength)`
`void`	`seek(long position)`
`void`	`seekToEndOfFile()`
`(package private) void`	`skipBytes(int n)`

Methods inherited from class java.lang.Object

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

Constructor Details
- RRDFile
  
  RRDFile(String name) throws IOException
  
  Throws:
  
  IOException
- RRDFile
  
  RRDFile(File file) throws IOException
  
  Throws:
  
  IOException
Method Details
- isBigEndian
  
  boolean isBigEndian()
- getAlignment
  
  int getAlignment()
- readDouble
  
  double readDouble() throws IOException
  
  Throws:
  
  IOException
- readInt
  
  int readInt() throws IOException
  
  Throws:
  
  IOException
- readLong
  
  int readLong() throws IOException
  
  Throws:
  
  IOException
- readString
  
  String readString(int maxLength) throws IOException
  
  Throws:
  
  IOException
- skipBytes
  
  void skipBytes(int n) throws IOException
  
  Throws:
  
  IOException
- align
  
  int align(int boundary) throws IOException
  
  Throws:
  
  IOException
- align
  
  int align() throws IOException
  
  Throws:
  
  IOException
- info
  
  long info() throws IOException
  
  Throws:
  
  IOException
- getFilePointer
  
  long getFilePointer() throws IOException
  
  Throws:
  
  IOException
- close
  
  void close() throws IOException
  
  Throws:
  
  IOException
- read
  
  void read(ByteBuffer bb) throws IOException
  
  Throws:
  
  IOException
- getUnivalArray
  
  UnivalArray getUnivalArray(int size) throws IOException
  
  Throws:
  
  IOException
- getBits
  
  int getBits()
  
  Returns:
  
  the long size in bits for this file
- seek
  
  public void seek(long position)
- seekToEndOfFile
  
  public void seekToEndOfFile()

Constructors
Constructor	Description
`RRDFile(File file)`
`RRDFile(String name)`

Class RRDFile

Field Summary

Fields inherited from interface org.rrd4j.core.jrrd.Constants

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Details

Method Details