java.lang.Object
- oshi.hardware.common.AbstractHWDiskStore
- - oshi.hardware.platform.linux.LinuxHWDiskStore

All Implemented Interfaces:: HWDiskStore

@ThreadSafe
public final class LinuxHWDiskStore
extends AbstractHWDiskStore

Linux hard disk implementation.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

(package private) static class LinuxHWDiskStore.UdevStat

Field Summary

Fields
Modifier and Type	Field	Description
`private static java.lang.String`	`BLOCK`
`private long`	`currentQueueLength`
`private static java.lang.String`	`DISK`
`private static java.lang.String`	`DM_LV_NAME`
`private static java.lang.String`	`DM_UUID`
`private static java.lang.String`	`DM_VG_NAME`
`private static java.lang.String`	`ID_FS_TYPE`
`private static java.lang.String`	`ID_FS_UUID`
`private static java.lang.String`	`ID_MODEL`
`private static java.lang.String`	`ID_SERIAL_SHORT`
`private static org.slf4j.Logger`	`LOG`
`private static java.lang.String`	`LOGICAL_VOLUME_GROUP`
`private static java.lang.String`	`MAJOR`
`private static java.lang.String`	`MINOR`
`private static java.lang.String`	`PARTITION`
`private java.util.List<HWPartition>`	`partitionList`
`private long`	`readBytes`
`private long`	`reads`
`private static int`	`SECTORSIZE`
`private static java.lang.String`	`SIZE`
`private static java.lang.String`	`STAT`
`private long`	`timeStamp`
`private long`	`transferTime`
`private static int`	`UDEV_STAT_LENGTH`
`private static int[]`	`UDEV_STAT_ORDERS`
`private long`	`writeBytes`
`private long`	`writes`

Constructor Summary

Constructors
Modifier	Constructor	Description
`private`	`LinuxHWDiskStore(java.lang.String name, java.lang.String model, java.lang.String serial, long size)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private static void`	`computeDiskStats(LinuxHWDiskStore store, java.lang.String devstat)`
`long`	`getCurrentQueueLength()`	The length of the disk queue (#I/O's in progress).
`private static java.lang.String`	`getDependentNamesFromHoldersDirectory(java.lang.String sysPath)`
`static java.util.List<HWDiskStore>`	`getDisks()`	Gets the disks on this machine
`private static java.util.List<HWDiskStore>`	`getDisks(LinuxHWDiskStore storeToUpdate)`
`private static java.lang.String`	`getMountPointOfDmDevice(java.lang.String vgName, java.lang.String lvName)`
`private static java.lang.String`	`getPartitionNameForDmDevice(java.lang.String vgName, java.lang.String lvName)`
`java.util.List<HWPartition>`	`getPartitions()`	The partitions on this disk.
`long`	`getReadBytes()`	The number of bytes read from the disk
`long`	`getReads()`	The number of reads from the disk
`long`	`getTimeStamp()`	The time this disk's statistics were updated.
`long`	`getTransferTime()`	The time spent reading or writing, in milliseconds.
`long`	`getWriteBytes()`	The number of bytes written to the disk
`long`	`getWrites()`	The number of writes to the disk
`private static java.util.Map<java.lang.String,java.lang.String>`	`readMountsMap()`
`boolean`	`updateAttributes()`	Make a best effort to update all the statistics about the drive without needing to recreate the drive list.

Methods inherited from class oshi.hardware.common.AbstractHWDiskStore
getModel, getName, getSerial, getSize, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - LOG
```
private static final org.slf4j.Logger LOG
```
  - BLOCK
```
private static final java.lang.String BLOCK
```
    See Also:
    
    Constant Field Values
  - DISK
```
private static final java.lang.String DISK
```
    See Also:
    
    Constant Field Values
  - PARTITION
```
private static final java.lang.String PARTITION
```
    See Also:
    
    Constant Field Values
  - STAT
```
private static final java.lang.String STAT
```
    See Also:
    
    Constant Field Values
  - SIZE
```
private static final java.lang.String SIZE
```
    See Also:
    
    Constant Field Values
  - MINOR
```
private static final java.lang.String MINOR
```
    See Also:
    
    Constant Field Values
  - MAJOR
```
private static final java.lang.String MAJOR
```
    See Also:
    
    Constant Field Values
  - ID_FS_TYPE
```
private static final java.lang.String ID_FS_TYPE
```
    See Also:
    
    Constant Field Values
  - ID_FS_UUID
```
private static final java.lang.String ID_FS_UUID
```
    See Also:
    
    Constant Field Values
  - ID_MODEL
```
private static final java.lang.String ID_MODEL
```
    See Also:
    
    Constant Field Values
  - ID_SERIAL_SHORT
```
private static final java.lang.String ID_SERIAL_SHORT
```
    See Also:
    
    Constant Field Values
  - DM_UUID
```
private static final java.lang.String DM_UUID
```
    See Also:
    
    Constant Field Values
  - DM_VG_NAME
```
private static final java.lang.String DM_VG_NAME
```
    See Also:
    
    Constant Field Values
  - DM_LV_NAME
```
private static final java.lang.String DM_LV_NAME
```
    See Also:
    
    Constant Field Values
  - LOGICAL_VOLUME_GROUP
```
private static final java.lang.String LOGICAL_VOLUME_GROUP
```
    See Also:
    
    Constant Field Values
  - SECTORSIZE
```
private static final int SECTORSIZE
```
    See Also:
    
    Constant Field Values
  - UDEV_STAT_ORDERS
```
private static final int[] UDEV_STAT_ORDERS
```
  - UDEV_STAT_LENGTH
```
private static final int UDEV_STAT_LENGTH
```
  - reads
```
private long reads
```
  - readBytes
```
private long readBytes
```
  - writes
```
private long writes
```
  - writeBytes
```
private long writeBytes
```
  - currentQueueLength
```
private long currentQueueLength
```
  - transferTime
```
private long transferTime
```
  - timeStamp
```
private long timeStamp
```
  - partitionList
```
private java.util.List<HWPartition> partitionList
```
- Constructor Detail
  - LinuxHWDiskStore
```
private LinuxHWDiskStore(java.lang.String name,
                         java.lang.String model,
                         java.lang.String serial,
                         long size)
```
- Method Detail
  - getReads
```
public long getReads()
```
    Description copied from interface: HWDiskStore
    
    The number of reads from the disk
    
    Returns:
    
    the reads
  - getReadBytes
```
public long getReadBytes()
```
    Description copied from interface: HWDiskStore
    
    The number of bytes read from the disk
    
    Returns:
    
    the bytes read
  - getWrites
```
public long getWrites()
```
    Description copied from interface: HWDiskStore
    
    The number of writes to the disk
    
    Returns:
    
    the writes
  - getWriteBytes
```
public long getWriteBytes()
```
    Description copied from interface: HWDiskStore
    
    The number of bytes written to the disk
    
    Returns:
    
    the bytes written
  - getCurrentQueueLength
```
public long getCurrentQueueLength()
```
    Description copied from interface: HWDiskStore
    
    The length of the disk queue (#I/O's in progress). Includes I/O requests that have been issued to the device driver but have not yet completed. Not supported on macOS.
    
    Returns:
    
    the current disk queue length
  - getTransferTime
```
public long getTransferTime()
```
    Description copied from interface: HWDiskStore
    
    The time spent reading or writing, in milliseconds.
    
    Returns:
    
    the transfer time
  - getTimeStamp
```
public long getTimeStamp()
```
    Description copied from interface: HWDiskStore
    
    The time this disk's statistics were updated.
    
    Returns:
    
    the timeStamp, in milliseconds since the epoch.
  - getPartitions
```
public java.util.List<HWPartition> getPartitions()
```
    Description copied from interface: HWDiskStore
    
    The partitions on this disk.
    
    Returns:
    
    an UnmodifiableList of the partitions on this drive.
  - getDisks
```
public static java.util.List<HWDiskStore> getDisks()
```
    Gets the disks on this machine
    
    Returns:
    
    a list of HWDiskStore objects representing the disks
  - getDisks
```
private static java.util.List<HWDiskStore> getDisks(LinuxHWDiskStore storeToUpdate)
```
  - updateAttributes
```
public boolean updateAttributes()
```
    Description copied from interface: HWDiskStore
    
    Make a best effort to update all the statistics about the drive without needing to recreate the drive list. This method provides for more frequent periodic updates of individual drive statistics but may be less efficient to use if updating all drives. It will not detect if a removable drive has been removed and replaced by a different drive in between method calls.
    
    Returns:
    
    True if the update was (probably) successful, false if the disk was not found
  - readMountsMap
```
private static java.util.Map<java.lang.String,java.lang.String> readMountsMap()
```
  - computeDiskStats
```
private static void computeDiskStats(LinuxHWDiskStore store,
                                     java.lang.String devstat)
```
  - getPartitionNameForDmDevice
```
private static java.lang.String getPartitionNameForDmDevice(java.lang.String vgName,
                                                            java.lang.String lvName)
```
  - getMountPointOfDmDevice
```
private static java.lang.String getMountPointOfDmDevice(java.lang.String vgName,
                                                        java.lang.String lvName)
```
  - getDependentNamesFromHoldersDirectory
```
private static java.lang.String getDependentNamesFromHoldersDirectory(java.lang.String sysPath)
```

Class LinuxHWDiskStore

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class oshi.hardware.common.AbstractHWDiskStore

Methods inherited from class java.lang.Object

Field Detail

LOG

BLOCK

DISK

PARTITION

STAT

SIZE

MINOR

MAJOR

ID_FS_TYPE

ID_FS_UUID

ID_MODEL

ID_SERIAL_SHORT

DM_UUID

DM_VG_NAME

DM_LV_NAME

LOGICAL_VOLUME_GROUP

SECTORSIZE

UDEV_STAT_ORDERS

UDEV_STAT_LENGTH

reads

readBytes

writes

writeBytes

currentQueueLength

transferTime

timeStamp

partitionList

Constructor Detail

LinuxHWDiskStore

Method Detail

getReads

getReadBytes

getWrites

getWriteBytes

getCurrentQueueLength

getTransferTime

getTimeStamp

getPartitions

getDisks

getDisks

updateAttributes

readMountsMap

computeDiskStats

getPartitionNameForDmDevice

getMountPointOfDmDevice

getDependentNamesFromHoldersDirectory