Package org.apache.tools.ant.taskdefs

Class Concat

java.lang.Object

org.apache.tools.ant.ProjectComponent

org.apache.tools.ant.Task

org.apache.tools.ant.taskdefs.Concat

All Implemented Interfaces:

Cloneable, Iterable<Resource>, ResourceCollection

public class Concat
extends Task
implements ResourceCollection

This class contains the 'concat' task, used to concatenate a series of files into a single stream. The destination of this stream may be the system console, or a file. The following is a sample invocation:

 <concat destfile="${build.dir}/index.xml"
   append="false">

   <fileset dir="${xml.root.dir}"
     includes="*.xml" />

 </concat>
 

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Concat.TextElement	sub element points to a file or contains text

Field Summary

Fields inherited from class org.apache.tools.ant.Task

target, taskName, taskType, wrapper

Fields inherited from class org.apache.tools.ant.ProjectComponent

description, location, project

Constructor Summary

Constructors

Constructor	Description
Concat()	Construct a new Concat task.

Method Summary

Modifier and Type	Method	Description
void	add(ResourceCollection c)	Add an arbitrary ResourceCollection.
void	addFilelist(FileList list)	List of files to concatenate.
void	addFileset(FileSet set)	Set of files to concatenate.
void	addFilterChain(FilterChain filterChain)	Adds a FilterChain.
void	addFooter(Concat.TextElement footerToAdd)	Add a footer to the concatenated output
void	addHeader(Concat.TextElement headerToAdd)	Add a header to the concatenated output
void	addText(String text)	This method adds text which appears in the 'concat' element.
Path	createPath()	Path of files to concatenate.
void	execute()	Execute the concat task.
boolean	isFilesystemOnly()	Implement ResourceCollection.
Iterator<Resource>	iterator()	Implement ResourceCollection.
void	reset()	Reset state to default.
void	setAppend(boolean append)	Sets the behavior when the destination exists.
void	setBinary(boolean binary)	Set the binary attribute.
void	setDest(Resource dest)	Set the resource to write to.
void	setDestfile(File destinationFile)	Sets the destination file, or uses the console if not specified.
void	setEncoding(String encoding)	Sets the character encoding
void	setEol(FixCRLF.CrLf crlf)	Specify the end of line to find and to add if not present at end of each input file.
void	setFilterBeforeConcat(boolean filterBeforeConcat)	Set the filterBeforeConcat attribute.
void	setFixLastLine(boolean fixLastLine)	Append line.separator to files that do not end with a line.separator, default false.
void	setForce(boolean forceOverwrite)	Deprecated. use #setOverwrite instead
void	setForceReadOnly(boolean f)	Whether read-only destinations will be overwritten.
void	setIgnoreEmpty(boolean ignoreEmpty)	Sets the behavior when no source resource files are available.
void	setOutputEncoding(String outputEncoding)	Sets the character encoding for outputting
void	setOverwrite(boolean forceOverwrite)	Force overwrite existing destination file
void	setResourceName(String resourceName)	Set the name that will be reported by the exposed Resource.
void	setWriter(Writer outputWriter)	Set the output writer.
int	size()	Implement ResourceCollection.

Methods inherited from class org.apache.tools.ant.Task

bindToOwner, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, init, isInvalid, log, log, log, log, maybeConfigure, perform, reconfigure, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType

Methods inherited from class org.apache.tools.ant.ProjectComponent

clone, getDescription, getLocation, getProject, setDescription, setLocation, setProject

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface org.apache.tools.ant.types.ResourceCollection

isEmpty, stream

Constructor Details

Concat

public Concat()

Construct a new Concat task.

Method Details

reset

public void reset()

Reset state to default.

setDestfile

public void setDestfile(File destinationFile)

Sets the destination file, or uses the console if not specified.

Parameters:

destinationFile - the destination file

setDest

public void setDest(Resource dest)

Set the resource to write to.

Parameters:

dest - the Resource to write to.

Since:

Ant 1.8

setAppend

public void setAppend(boolean append)

Sets the behavior when the destination exists. If set to true the task will append the stream data an Appendable resource; otherwise existing content will be overwritten. Defaults to false.

Parameters:

append - if true append output.

setEncoding

public void setEncoding(String encoding)

Sets the character encoding

Parameters:

encoding - the encoding of the input stream and unless outputencoding is set, the outputstream.

setOutputEncoding

public void setOutputEncoding(String outputEncoding)

Sets the character encoding for outputting

Parameters:

outputEncoding - the encoding for the output file

Since:

Ant 1.6

setForce

@Deprecated
public void setForce(boolean forceOverwrite)

Deprecated.

use #setOverwrite instead

Force overwrite existing destination file

Parameters:

forceOverwrite - if true always overwrite, otherwise only overwrite if the output file is older any of the input files.

Since:

Ant 1.6

setOverwrite

public void setOverwrite(boolean forceOverwrite)

Force overwrite existing destination file

Parameters:

forceOverwrite - if true always overwrite, otherwise only overwrite if the output file is older any of the input files.

Since:

Ant 1.8.2

setForceReadOnly

public void setForceReadOnly(boolean f)

Whether read-only destinations will be overwritten.

Defaults to false

Parameters:

f - boolean

Since:

Ant 1.8.2

setIgnoreEmpty

public void setIgnoreEmpty(boolean ignoreEmpty)

Sets the behavior when no source resource files are available. If set to false the destination file will always be created. Defaults to true.

Parameters:

ignoreEmpty - if false, honour destination file creation.

Since:

Ant 1.8.0

setResourceName

public void setResourceName(String resourceName)

Set the name that will be reported by the exposed Resource.

Parameters:

resourceName - to set

Since:

Ant 1.8.3

createPath

public Path createPath()

Path of files to concatenate.

Returns:

the path used for concatenating

Since:

Ant 1.6

addFileset

public void addFileset(FileSet set)

Set of files to concatenate.

Parameters:

set - the set of files

addFilelist

public void addFilelist(FileList list)

List of files to concatenate.

Parameters:

list - the list of files

add

public void add(ResourceCollection c)

Add an arbitrary ResourceCollection.

Parameters:

c - the ResourceCollection to add.

Since:

Ant 1.7

addFilterChain

public void addFilterChain(FilterChain filterChain)

Adds a FilterChain.

Parameters:

filterChain - a filterchain to filter the concatenated input

Since:

Ant 1.6

addText

public void addText(String text)

This method adds text which appears in the 'concat' element.

Parameters:

text - the text to be concatenated.

addHeader

public void addHeader(Concat.TextElement headerToAdd)

Add a header to the concatenated output

Parameters:

headerToAdd - the header

Since:

Ant 1.6

addFooter

public void addFooter(Concat.TextElement footerToAdd)

Add a footer to the concatenated output

Parameters:

footerToAdd - the footer

Since:

Ant 1.6

setFixLastLine

public void setFixLastLine(boolean fixLastLine)

Append line.separator to files that do not end with a line.separator, default false.

Parameters:

fixLastLine - if true make sure each input file has new line on the concatenated stream

Since:

Ant 1.6

setEol

public void setEol(FixCRLF.CrLf crlf)

Specify the end of line to find and to add if not present at end of each input file. This attribute is used in conjunction with fixlastline.

Parameters:

crlf - the type of new line to add - cr, mac, lf, unix, crlf, or dos

Since:

Ant 1.6

setWriter

public void setWriter(Writer outputWriter)

Set the output writer. This is to allow concat to be used as a nested element.

Parameters:

outputWriter - the output writer.

Since:

Ant 1.6

setBinary

public void setBinary(boolean binary)

Set the binary attribute. If true, concat will concatenate the files byte for byte. This mode does not allow any filtering or other modifications to the input streams. The default value is false.

Parameters:

binary - if true, enable binary mode.

Since:

Ant 1.6.2

setFilterBeforeConcat

public void setFilterBeforeConcat(boolean filterBeforeConcat)

Set the filterBeforeConcat attribute. If true, concat will filter each input through the filterchain before concatenating the results. This allows to e.g. use the FileTokenizer to tokenize each input.

Parameters:

filterBeforeConcat - if true, filter each input before concatenation

Since:

Ant 1.10.10

execute

public void execute()

Execute the concat task.

Overrides:

execute in class Task

iterator

public Iterator<Resource> iterator()

Implement ResourceCollection.

Specified by:

iterator in interface Iterable<Resource>

Returns:

Iterator<Resource>.

size

public int size()

Implement ResourceCollection.

Specified by:

size in interface ResourceCollection

Returns:

1.

isFilesystemOnly

public boolean isFilesystemOnly()

Implement ResourceCollection.

Specified by:

isFilesystemOnly in interface ResourceCollection

Returns:

false.