ECIDUtils (Java API Reference for Oracle WebLogic Server)

java.lang.Object
- weblogic.diagnostics.context.ECIDUtils

public class ECIDUtils
extends java.lang.Object

Field Summary

Fields
Modifier and Type	Field and Description
`static java.lang.String`	`CLASS_NAME`
`private static int`	`ENCODING_FORMAT_IPv4_LENGTH`
`private static int`	`ENCODING_FORMAT_IPv6_LENGTH`
`private static int`	`IPv4_MASK`
`private static int`	`IPv4_MOVE`
`private static int`	`IPv4_SHIFT`
`private static int`	`IPv6_MASK`
`private static int`	`IPv6_MOVE`
`private static int`	`IPv6_SHIFT`
`private static int`	`s_ecidSize`
`private static java.lang.String`	`s_processId`
`private static java.util.concurrent.atomic.AtomicLong`	`sECIDCounter`
`private static int`	`UB1_BITS` IP bit obfuscation values
`private static int`	`UB1_MASK`
`private static int`	`UB4_BITS`

Constructor Summary

Constructors
Constructor and Description

ECIDUtils()

Constructors
Constructor and Description
`ECIDUtils()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`private static int`	`bitSwap(int value, int skip)` Swap pairs of bits in the int value.
`(package private) static int`	`byteGet(int value, int target)` Get the target byte in an int.
`(package private) static int`	`byteShift(int target)` Get the number of bits to shift to the target byte in an int.
`private static int`	`byteSwap(int value, int source, int target)` Swap the source byte in the value to the target byte location.
`static java.lang.String`	`createECID()` Create a unique ECID for this ContextFamily.
`private static java.lang.String`	`createProcessId()` Create the process id string used in ECID creation
`private static java.lang.String`	`createProcessIdIP()` Create the process id string from the system IP address.
`private static java.lang.String`	`createProcessIdIPv4(byte[] ipBytes, int pid)` Create the process id string from the IPv4 address and pid.
`private static java.lang.String`	`createProcessIdIPv6(byte[] ipBytes, int pid)` Create the process id string from the IPv6 address and pid.

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

- Field Detail
  - ENCODING_FORMAT_IPv4_LENGTH
```
private static final int ENCODING_FORMAT_IPv4_LENGTH
```
    See Also:
    
    Constant Field Values
  - ENCODING_FORMAT_IPv6_LENGTH
```
private static final int ENCODING_FORMAT_IPv6_LENGTH
```
    See Also:
    
    Constant Field Values
  - UB1_BITS
```
private static final int UB1_BITS
```
    IP bit obfuscation values
    
    See Also:
    
    Constant Field Values
  - UB1_MASK
```
private static final int UB1_MASK
```
    See Also:
    
    Constant Field Values
  - UB4_BITS
```
private static final int UB4_BITS
```
    See Also:
    
    Constant Field Values
  - IPv4_SHIFT
```
private static final int IPv4_SHIFT
```
    See Also:
    
    Constant Field Values
  - IPv4_MOVE
```
private static final int IPv4_MOVE
```
    See Also:
    
    Constant Field Values
  - IPv4_MASK
```
private static final int IPv4_MASK
```
    See Also:
    
    Constant Field Values
  - IPv6_SHIFT
```
private static final int IPv6_SHIFT
```
    See Also:
    
    Constant Field Values
  - IPv6_MOVE
```
private static final int IPv6_MOVE
```
    See Also:
    
    Constant Field Values
  - IPv6_MASK
```
private static final int IPv6_MASK
```
    See Also:
    
    Constant Field Values
  - sECIDCounter
```
private static java.util.concurrent.atomic.AtomicLong sECIDCounter
```
  - s_ecidSize
```
private static int s_ecidSize
```
  - s_processId
```
private static java.lang.String s_processId
```
  - CLASS_NAME
```
public static final java.lang.String CLASS_NAME
```
- Constructor Detail
  - ECIDUtils
```
public ECIDUtils()
```
- Method Detail
  - createProcessId
```
private static java.lang.String createProcessId()
```
    Create the process id string used in ECID creation
    
    Returns:
    
    the process id string.
  - createProcessIdIP
```
private static java.lang.String createProcessIdIP()
```
    Create the process id string from the system IP address.
    
    Returns:
    
    the process id string.
  - createProcessIdIPv6
```
private static java.lang.String createProcessIdIPv6(byte[] ipBytes,
                                                    int pid)
```
    Create the process id string from the IPv6 address and pid. To avoid duplicate ECIDs, this algorithm should match its equivalent in yodcontext.c.
    
    Parameters:
    
    ipBytes - The IPv6 address.
    
    pid - The process id.
    
    Returns:
    
    the process id string.
  - createProcessIdIPv4
```
private static java.lang.String createProcessIdIPv4(byte[] ipBytes,
                                                    int pid)
```
    Create the process id string from the IPv4 address and pid. To avoid duplicate ECIDs, this algorithm should match its equivalent in yodcontext.c.
    
    Parameters:
    
    ipBytes - The IPv4 address.
    
    pid - The process id.
    
    Returns:
    
    the process id string.
  - byteSwap
```
private static int byteSwap(int value,
                            int source,
                            int target)
```
    Swap the source byte in the value to the target byte location.
    
    Parameters:
    
    value - The value int for the source byte.
    
    source - The source byte in value (0-4).
    
    target - The target byte in an int (0-4).
    
    Returns:
    
    an int with the source byte from value swapped to the target byte location.
  - bitSwap
```
private static int bitSwap(int value,
                           int skip)
```
    Swap pairs of bits in the int value.
    
    Parameters:
    
    value - The value int whose bits are to be swapped.
    
    skip - The bit pair NOT to swap in value.
    
    Returns:
    
    an int based upon value, but with all bit pairs swapped (except the pair specified by skip).
  - byteShift
```
static int byteShift(int target)
```
    Get the number of bits to shift to the target byte in an int.
    
    Parameters:
    
    target - The target byte in the int (0-4).
    
    Returns:
    
    the number of bits required to shift to the target byte.
  - byteGet
```
static int byteGet(int value,
                   int target)
```
    Get the target byte in an int.
    
    Parameters:
    
    target - The target byte in the integer (0-4).
    
    Returns:
    
    the value of the target byte (as an int).
  - createECID
```
public static java.lang.String createECID()
```
    Create a unique ECID for this ContextFamily. The ECID consists of the following fields, each obfuscated and then encoded using the DMS base 64 encoding algorithm: <time><ip><pid><stamp> <time> is a millisecond timestamp <ip> is the system IP address (network ordered) <pid> is the system process id <stamp> is a unique value within this process Note that the <dpsid> or <ip><pid> portion has already been formatted in s_processId

Class ECIDUtils

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

ENCODING_FORMAT_IPv4_LENGTH

ENCODING_FORMAT_IPv6_LENGTH

UB1_BITS

UB1_MASK

UB4_BITS

IPv4_SHIFT

IPv4_MOVE

IPv4_MASK

IPv6_SHIFT

IPv6_MOVE

IPv6_MASK

sECIDCounter

s_ecidSize

s_processId

CLASS_NAME

Constructor Detail

ECIDUtils

Method Detail

createProcessId

createProcessIdIP

createProcessIdIPv6

createProcessIdIPv4

byteSwap

bitSwap

byteShift

byteGet

createECID