org.unix4j.processor

Class AbstractLineProcessor<A extends Arguments<A>>

java.lang.Object

org.unix4j.processor.AbstractLineProcessor<A>

All Implemented Interfaces:

LineProcessor

Direct Known Subclasses:

AbstractGrepProcessor, AbstractHeadProcessor, AbstractSortProcessor, AbstractTailProcessor, CatProcessor, NumberLinesProcessor, SqueezeEmptyLinesProcessor, UniqProcessor, WcProcessor, XargsLineProcessor

public abstract class AbstractLineProcessor<A extends Arguments<A>>
extends Object
implements LineProcessor

Abstract base implementation for LineProcessor returned by the execute method of commands constructed with a reference to the command plus context and output passed to Command.execute(ExecutionContext, LineProcessor).

Constructor Summary

Constructors

Constructor and Description
AbstractLineProcessor(Command<A> command, ExecutionContext context, LineProcessor output) Constructor with command creating this processor, execution context and output to write to.

Method Summary

Modifier and Type	Method and Description
protected A	getArguments() Returns the command arguments for the current variable context.
protected Command<A>	getCommand() Returns the command that was passed to the constructor of this line processor, the command whose execute method usually returns this line processor.
protected ExecutionContext	getContext() Returns the execution context that was passed to the constructor
protected LineProcessor	getOutput() Returns the output that was passed to the constructor of this line processor, the object to write to when executing the command through the this processor

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.unix4j.processor.LineProcessor

finish, processLine

Constructor Detail

AbstractLineProcessor

public AbstractLineProcessor(Command<A> command,
                             ExecutionContext context,
                             LineProcessor output)

Constructor with command creating this processor, execution context and output to write to.

Parameters:

command - the command whose execute method usually returns this line processor

context - the execution context passed to the command's execute method

output - the output object to write to when executing the command through this processor

Method Detail

getCommand

protected Command<A> getCommand()

Returns the command that was passed to the constructor of this line processor, the command whose execute method usually returns this line processor.

Returns:

the command whose execute method usually returns this line processor

getArguments

protected A getArguments()

Returns the command arguments for the current variable context. This method returns and caches the result of
getCommand().getArguments(getContext()).

Returns:

the command arguments for the current variable context

getContext

protected ExecutionContext getContext()

Returns the execution context that was passed to the constructor

Returns:

the execution context

getOutput

protected LineProcessor getOutput()

Returns the output that was passed to the constructor of this line processor, the object to write to when executing the command through the this processor

Returns:

the output to write to when using this processor