org.unix4j.unix.grep

Class CountMatchingLinesProcessor

java.lang.Object

org.unix4j.processor.AbstractLineProcessor<GrepArguments>

org.unix4j.unix.grep.AbstractGrepProcessor

org.unix4j.unix.grep.CountMatchingLinesProcessor

All Implemented Interfaces:

LineProcessor

final class CountMatchingLinesProcessor
extends AbstractGrepProcessor

Writes the matching line count to the output. The matching operation is delegated to the LineMatcher passed to the constructor.

Constructor Summary

Constructors

Constructor and Description
CountMatchingLinesProcessor(GrepCommand command, ExecutionContext context, LineProcessor output, LineMatcher matcher)

Method Summary

Modifier and Type	Method and Description
void	finish() Indicates that this line processing task is complete and can finished.
protected boolean	processLine(Line line, boolean isMatch)

Methods inherited from class org.unix4j.unix.grep.AbstractGrepProcessor

processLine

Methods inherited from class org.unix4j.processor.AbstractLineProcessor

getArguments, getCommand, getContext, getOutput

Methods inherited from class java.lang.Object

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

Constructor Detail

CountMatchingLinesProcessor

public CountMatchingLinesProcessor(GrepCommand command,
                                   ExecutionContext context,
                                   LineProcessor output,
                                   LineMatcher matcher)

Method Detail

processLine

protected boolean processLine(Line line,
                              boolean isMatch)

Specified by:

processLine in class AbstractGrepProcessor

finish

public void finish()

Description copied from interface: LineProcessor

Indicates that this line processing task is complete and can finished.

Simple output devices usually perform a flush operation in this method. More complex commands may perform the real operation in this method, for instance write the total count of lines or words to the target file or stream.

Specified by:

finish in interface LineProcessor

Overrides:

finish in class AbstractGrepProcessor