Package org.apache.calcite.adapter.os

Class Processes

java.lang.Object

org.apache.calcite.adapter.os.Processes

public class Processes
extends java.lang.Object

Utilities regarding operating system processes.

WARNING: Spawning processes is not secure. Use this class with caution. This class is in the "plus" module because "plus" is not used by default. Do not move this class to the "core" module.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	Processes.ProcessFactory	Creates processes.
private static class	Processes.ProcessLinesEnumerator	Enumerator that executes a process and returns each line as an element.
private static class	Processes.SeparatedLinesEnumerable	Enumerator that executes a process and returns each line as an element.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Processes()

Method Summary

Modifier and Type	Method	Description
(package private) static Enumerable<java.lang.String>	processLines(char sep, java.lang.String... args)	Executes a command and returns its result as an enumerable of lines.
private static Enumerable<java.lang.String>	processLines(char sep, java.util.function.Supplier<java.lang.Process> processSupplier)	Executes a command and returns its result as an enumerable of lines.
(package private) static Enumerable<java.lang.String>	processLines(java.lang.String... args)	Executes a command and returns its result as an enumerable of lines.
private static java.util.function.Supplier<java.lang.Process>	processSupplier(java.lang.String... args)

Methods inherited from class java.lang.Object

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

Constructor Detail

Processes

private Processes()

Method Detail

processLines

static Enumerable<java.lang.String> processLines(java.lang.String... args)

Executes a command and returns its result as an enumerable of lines.

processLines

static Enumerable<java.lang.String> processLines(char sep,
                                                 java.lang.String... args)

Executes a command and returns its result as an enumerable of lines.

processLines

private static Enumerable<java.lang.String> processLines(char sep,
                                                         java.util.function.Supplier<java.lang.Process> processSupplier)

Executes a command and returns its result as an enumerable of lines.

Parameters:

sep - Separator character

processSupplier - Command and its arguments

processSupplier

private static java.util.function.Supplier<java.lang.Process> processSupplier(java.lang.String... args)