ProcessLogger

Encapsulates the output and error streams of a running process. This is used by scala.sys.process.ProcessBuilder when starting a process, as an alternative to scala.sys.process.ProcessIO, which can be more difficult to use. Note that a ProcessLogger will be used to create a ProcessIO anyway. The object BasicIO has some functions to do that.

Here is an example that counts the number of lines in the normal and error output of a process:

import scala.sys.process._

var normalLines = 0
var errorLines = 0
val countLogger = ProcessLogger(line => normalLines += 1,
                                line => errorLines += 1)
"find /etc" ! countLogger

Source: ProcessLogger.scala
See also: scala.sys.process.ProcessBuilder

Linear Supertypes

AnyRef, Any

Known Subclasses

FileProcessLogger

Type Hierarchy Learn more about scaladoc diagrams

Abstract Value Members

abstract def buffer[T](f: ⇒ T): T

If a process is begun with one of these ProcessBuilder methods:
If a process is begun with one of these ProcessBuilder methods:
```
def !(log: ProcessLogger): Int
def !<(log: ProcessLogger): Int
```
The run will be wrapped in a call to buffer. This gives the logger an opportunity to set up and tear down buffering. At present the library implementations of ProcessLogger simply execute the body unbuffered.
abstract def err(s: ⇒ String): Unit

Will be called with each line read from the process error stream.
abstract def out(s: ⇒ String): Unit

Will be called with each line read from the process output stream.

Concrete Value Members

final def !=(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def !=(arg0: Any): Boolean

Definition Classes
Any
final def ##(): Int

Definition Classes
AnyRef → Any
def +(other: String): String

Implicit information
This member is added by an implicit conversion from ProcessLogger to StringAdd[ProcessLogger] performed by method StringAdd in scala.Predef.
Definition Classes
StringAdd
def ->[B](y: B): (ProcessLogger, B)

Implicit information
This member is added by an implicit conversion from ProcessLogger to ArrowAssoc[ProcessLogger] performed by method ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc
Annotations
@inline()
final def ==(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def ==(arg0: Any): Boolean

Definition Classes
Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws()
def ensuring(cond: (ProcessLogger) ⇒ Boolean, msg: ⇒ Any): ProcessLogger

Implicit information
This member is added by an implicit conversion from ProcessLogger to Ensuring[ProcessLogger] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: (ProcessLogger) ⇒ Boolean): ProcessLogger

Implicit information
This member is added by an implicit conversion from ProcessLogger to Ensuring[ProcessLogger] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean, msg: ⇒ Any): ProcessLogger

Implicit information
This member is added by an implicit conversion from ProcessLogger to Ensuring[ProcessLogger] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean): ProcessLogger

Implicit information
This member is added by an implicit conversion from ProcessLogger to Ensuring[ProcessLogger] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws()
def formatted(fmtstr: String): String

Returns string formatted according to given format string.
Returns string formatted according to given format string. Format strings are as for String.format (@see java.lang.String.format).

Implicit information
This member is added by an implicit conversion from ProcessLogger to StringFormat[ProcessLogger] performed by method StringFormat in scala.Predef.
Definition Classes
StringFormat
Annotations
@inline()
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws()
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws()
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws()
def →[B](y: B): (ProcessLogger, B)

Implicit information
This member is added by an implicit conversion from ProcessLogger to ArrowAssoc[ProcessLogger] performed by method ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc

trait ProcessLogger extends AnyRef

Abstract Value Members

abstract def buffer[T](f: ⇒ T): T

abstract def err(s: ⇒ String): Unit

abstract def out(s: ⇒ String): Unit

Concrete Value Members

final def !=(arg0: AnyRef): Boolean

final def !=(arg0: Any): Boolean

final def ##(): Int

def +(other: String): String

def ->[B](y: B): (ProcessLogger, B)

final def ==(arg0: AnyRef): Boolean

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def ensuring(cond: (ProcessLogger) ⇒ Boolean, msg: ⇒ Any): ProcessLogger

def ensuring(cond: (ProcessLogger) ⇒ Boolean): ProcessLogger

def ensuring(cond: Boolean, msg: ⇒ Any): ProcessLogger

def ensuring(cond: Boolean): ProcessLogger

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

def formatted(fmtstr: String): String

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

def →[B](y: B): (ProcessLogger, B)

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion StringAdd from ProcessLogger to StringAdd[ProcessLogger]

Inherited by implicit conversion StringFormat from ProcessLogger to StringFormat[ProcessLogger]

Inherited by implicit conversion Ensuring from ProcessLogger to Ensuring[ProcessLogger]

Inherited by implicit conversion ArrowAssoc from ProcessLogger to ArrowAssoc[ProcessLogger]

Ungrouped