Package org.apache.tools.ant.taskdefs

# Class Copy

java.lang.Object
org.apache.tools.ant.ProjectComponent
org.apache.tools.ant.Task
org.apache.tools.ant.taskdefs.Copy

All Implemented Interfaces:
  `Cloneable`

Direct Known Subclasses:
  `Move`, `Sync.MyCopy`

public class Copy extends Task

Copies a file or directory to a new file or directory. Files are only copied if the source file is newer than the destination file, or when the destination file does not exist. It is possible to explicitly overwrite existing files.

This implementation is based on Arnout Kuiper's initial design document, the following mailing list discussions, and the copyfile/copydir tasks.

Since:
  Ant 1.2

## Field Summary

Fields
Modifier and Type
Field
Description
`protected Hashtable<File,File>`
`completeDirMap`
`protected File`
`destDir`
`protected File`
`destFile`
`protected Hashtable<String,String[]>`
`dirCopyMap`
`protected boolean`
`failonerror`
`protected File`
`file`
`protected Hashtable<String,String[]>`
`fileCopyMap`
`protected Vector<ResourceCollection>`
`filesets`
`protected FileUtils`
`fileUtils`
`protected boolean`
`filtering`
`protected boolean`
`flatten`
`protected boolean`
`forceOverwrite`
`protected boolean`
`includeEmpty`
`protected Mapper`
`mapperElement`
`protected boolean`
`preserveLastModified`
`protected Vector<ResourceCollection>`
`rcs`
`protected int`
`verbosity`

### 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
`Copy()`
Copy task constructor.

## Method Summary

Modifier and Type
Method
Description
`void`
`add(ResourceCollection res)`
Add a collection of files to copy.
`void`
`add(FileNameMapper fileNameMapper)`
Add a nested filenamemapper.
`void`
`addFileset(FileSet set)`
Add a set of files to copy.
`protected void`
`buildMap(File fromDir, File toDir, String[] names, FileNameMapper mapper, Hashtable<String,String[]> map)`
Add to a map of files/directories to copy.
`protected Map<Resource,String[]>`
`buildMap(Resource[] fromResources, File toDir, FileNameMapper mapper)`
Create a map of resources to copy.
`FilterChain`
`createFilterChain()`
Add a FilterChain.
`FilterSet`
`createFilterSet()`
Add a filterset.
`Mapper`
`createMapper()`
Define the mapper to map source to destination files.
`protected void`
`doFileOperations()`
Actually does the file (and possibly empty directory) copies.
`protected void`
`doResourceOperations(Map<Resource,String[]> map)`
Actually does the resource copies.
`void`
`execute()`
Perform the copy operation.
`String`
`getEncoding()`
Get the character encoding to be used.
`protected FileUtils`
`getFileUtils()`
Get the FileUtils for this task.
`protected Vector<FilterChain>`
`getFilterChains()`
Get the filterchains being applied to this operation.
`protected Vector<FilterSet>`
`getFilterSets()`
Get the filtersets being applied to this operation.
`boolean`
`getForce()`
Whether read-only destinations will be overwritten.
`String`
`getOutputEncoding()`
Get the character encoding for output files.
`boolean`
`getPreserveLastModified()`
Get whether to give the copied files the same last modified time as the original files.
`boolean`
`isEnableMultipleMapping()`
Get whether multiple mapping is enabled.
`protected void`
`scan(File fromDir, File toDir, String[] files, String[] dirs)`
Compares source files to destination files to see if they should be copied.
`protected Map<Resource,String[]>`
`scan(Resource[] fromResources, File toDir)`
Compares source resources to destination files to see if they should be copied.
`void`
`setEnableMultipleMappings(boolean enableMultipleMappings)`
Set method of handling mappers that return multiple mappings for a given source path.
`void`
`setEncoding(String encoding)`
Set the character encoding.
`void`
`setFailOnError(boolean failonerror)`
Set whether to fail when errors are encountered.
`void`
`setFile(File file)`
Set a single source file to copy.
`void`
`setFiltering(boolean filtering)`
Set filtering mode.
`void`
`setFlatten(boolean flatten)`
Set whether files copied from directory trees will be "flattened" into a single directory.
`void`
`setForce(boolean f)`
Whether read-only destinations will be overwritten.
`void`
`setGranularity(long granularity)`
Set the number of milliseconds leeway to give before deciding a target is out of date.
`void`
`setIncludeEmptyDirs(boolean includeEmpty)`
Set whether to copy empty directories.
`void`
`setOutputEncoding(String encoding)`
Set the character encoding for output files.
`void`
`setOverwrite(boolean overwrite)`
Set overwrite mode regarding existing destination file(s).
`void`
`setPreserveLastModified(boolean preserve)`
Give the copied files the same last modified time as the original files.
`void`
`setPreserveLastModified(String preserve)`
Deprecated.
since 1.5.x.
`void`
`setQuiet(boolean quiet)`
Set quiet mode.
`void`
`setTodir(File destDir)`
Set the destination directory.
`void`
`setTofile(File destFile)`
Set the destination file.
`void`
`setVerbose(boolean verbose)`
Set verbose mode.
`protected boolean`
`supportsNonFileResources()`
Whether this task can deal with non-file resources.
`protected void`
`validateAttributes()`
Ensure we have a consistent and legal set of attributes, and set any internal flags necessary based on different combinations of attributes.

### 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`

## Field Details

### file

protected File file

### destFile

protected File destFile

### destDir

protected File destDir

### rcs

protected Vector<ResourceCollection> rcs

### filesets

protected Vector<ResourceCollection> filesets

### filtering

protected boolean filtering

### preserveLastModified

protected boolean preserveLastModified

### forceOverwrite

protected boolean forceOverwrite

### flatten

protected boolean flatten

### verbosity

protected int verbosity

### includeEmpty

protected boolean includeEmpty

### failonerror

protected boolean failonerror

### fileCopyMap

protected Hashtable<String,String[]> fileCopyMap

### dirCopyMap

protected Hashtable<String,String[]> dirCopyMap

### completeDirMap

protected Hashtable<File,File> completeDirMap

### mapperElement

protected Mapper mapperElement

### fileUtils

protected FileUtils fileUtils

## Constructor Details

### Copy

public Copy()
Copy task constructor.

## Method Details

### getFileUtils

protected FileUtils getFileUtils()
Get the FileUtils for this task.

Returns:
  the fileutils object.

### setFile

public void setFile(File file)
Set a single source file to copy.

Parameters:
  `file` - the file to copy.

### setTofile

public void setTofile(File destFile)
Set the destination file.

Parameters:
  `destFile` - the file to copy to.

### setTodir

public void setTodir(File destDir)
Set the destination directory.

Parameters:
  `destDir` - the destination directory.

### createFilterChain

public FilterChain createFilterChain()
Add a FilterChain.

Returns:
  a filter chain object.

### createFilterSet

public FilterSet createFilterSet()
Add a filterset.

Returns:
  a filter set object.

### setPreserveLastModified

@Deprecated public void setPreserveLastModified(String preserve)
Deprecated.
since 1.5.x. setPreserveLastModified(String) has been deprecated and replaced with setPreserveLastModified(boolean) to consistently let the Introspection mechanism work.
Give the copied files the same last modified time as the original files.

Parameters:
  `preserve` - a boolean string.

### setPreserveLastModified

public void setPreserveLastModified(boolean preserve)
Give the copied files the same last modified time as the original files.

Parameters:
  `preserve` - if true preserve the modified time; default is false.

### getPreserveLastModified

public boolean getPreserveLastModified()
Get whether to give the copied files the same last modified time as the original files.

Returns:
  the whether destination files will inherit the modification times of the corresponding source files.
Since:
  1.32, Ant 1.5

### getFilterSets

protected Vector<FilterSet> getFilterSets()
Get the filtersets being applied to this operation.

Returns:
  a vector of FilterSet objects.

### getFilterChains

protected Vector<FilterChain> getFilterChains()
Get the filterchains being applied to this operation.

Returns:
  a vector of FilterChain objects.

### setFiltering

public void setFiltering(boolean filtering)
Set filtering mode.

Parameters:
  `filtering` - if true enable filtering; default is false.

### setOverwrite

public void setOverwrite(boolean overwrite)
Set overwrite mode regarding existing destination file(s).

Parameters:
  `overwrite` - if true force overwriting of destination file(s) even if the destination file(s) are younger than the corresponding source file. Default is false.

### setForce

public void setForce(boolean f)
Whether read-only destinations will be overwritten.

Defaults to false

Parameters:
  `f` - boolean
Since:
  Ant 1.8.2

### getForce

public boolean getForce()
Whether read-only destinations will be overwritten.

Returns:
  boolean
Since:
  Ant 1.8.2

### setFlatten

public void setFlatten(boolean flatten)
Set whether files copied from directory trees will be "flattened" into a single directory. If there are multiple files with the same name in the source directory tree, only the first file will be copied into the "flattened" directory, unless the forceoverwrite attribute is true.

Parameters:
  `flatten` - if true flatten the destination directory. Default is false.

### setVerbose

public void setVerbose(boolean verbose)
Set verbose mode. Used to force listing of all names of copied files.

Parameters:
  `verbose` - whether to output the names of copied files. Default is false.

### setIncludeEmptyDirs

public void setIncludeEmptyDirs(boolean includeEmpty)
Set whether to copy empty directories.

Parameters:
  `includeEmpty` - if true copy empty directories. Default is true.

### setQuiet

public void setQuiet(boolean quiet)
Set quiet mode. Used to hide messages when a file or directory to be copied does not exist.

Parameters:
  `quiet` - whether or not to display error messages when a file or directory does not exist. Default is false.

### setEnableMultipleMappings

public void setEnableMultipleMappings(boolean enableMultipleMappings)
Set method of handling mappers that return multiple mappings for a given source path.

Parameters:
  `enableMultipleMappings` - If true the task will copy to all the mappings for a given source path, if false, only the first file or directory is processed. By default, this setting is false to provide backward compatibility with earlier releases.
Since:
  Ant 1.6

### isEnableMultipleMapping

public boolean isEnableMultipleMapping()
Get whether multiple mapping is enabled.

Returns:
  true if multiple mapping is enabled; false otherwise.

### setFailOnError

public void setFailOnError(boolean failonerror)
Set whether to fail when errors are encountered. If false, note errors to the output but keep going. Default is true.

Parameters:
  `failonerror` - true or false.

### addFileset

public void addFileset(FileSet set)
Add a set of files to copy.

Parameters:
  `set` - a set of files to copy.

### add

public void add(ResourceCollection res)
Add a collection of files to copy.

Parameters:
  `res` - a resource collection to copy.
Since:
  Ant 1.7

### createMapper

public Mapper createMapper() throws BuildException
Define the mapper to map source to destination files.

Returns:
  a mapper to be configured.
Throws:
  `BuildException` - if more than one mapper is defined.

### add

public void add(FileNameMapper fileNameMapper)
Add a nested filenamemapper.

Parameters:
  `fileNameMapper` - the mapper to add.
Since:
  Ant 1.6.3

### setEncoding

public void setEncoding(String encoding)
Set the character encoding.

Parameters:
  `encoding` - the character encoding.
Since:
  1.32, Ant 1.5

### getEncoding

public String getEncoding()
Get the character encoding to be used.

Returns:
  the character encoding, `null` if not set.
Since:
  1.32, Ant 1.5

### setOutputEncoding

public void setOutputEncoding(String encoding)
Set the character encoding for output files.

Parameters:
  `encoding` - the output character encoding.
Since:
  Ant 1.6

### getOutputEncoding

public String getOutputEncoding()
Get the character encoding for output files.

Returns:
  the character encoding for output files, `null` if not set.
Since:
  Ant 1.6

### setGranularity

public void setGranularity(long granularity)
Set the number of milliseconds leeway to give before deciding a target is out of date.

Default is 1 second, or 2 seconds on DOS systems.

Parameters:
  `granularity` - the granularity used to decide if a target is out of date.
Since:
  Ant 1.6.2

### execute

public void execute() throws BuildException
Perform the copy operation.

Overrides:
  `execute` in class `Task`
Throws:
  `BuildException` - if an error occurs.

### validateAttributes

protected void validateAttributes() throws BuildException
Ensure we have a consistent and legal set of attributes, and set any internal flags necessary based on different combinations of attributes.

Throws:
  `BuildException` - if an error occurs.

### scan

protected void scan(File fromDir, File toDir, String[] files, String[] dirs)
Compares source files to destination files to see if they should be copied.

Parameters:
  `fromDir` - The source directory.
  `toDir` - The destination directory.
  `files` - A list of files to copy.
  `dirs` - A list of directories to copy.

### scan

protected Map<Resource,String[]> scan(Resource[] fromResources, File toDir)
Compares source resources to destination files to see if they should be copied.

Parameters:
  `fromResources` - The source resources.
  `toDir` - The destination directory.
Returns:
  a Map with the out-of-date resources as keys and an array of target file names as values.
Since:
  Ant 1.7

### buildMap

protected void buildMap(File fromDir, File toDir, String[] names, FileNameMapper mapper, Hashtable<String,String[]> map)
Add to a map of files/directories to copy.

Parameters:
  `fromDir` - the source directory.
  `toDir` - the destination directory.
  `names` - a list of filenames.
  `mapper` - a `FileNameMapper` value.
  `map` - a map of source file to array of destination files.

### buildMap

protected Map<Resource,String[]> buildMap(Resource[] fromResources, File toDir, FileNameMapper mapper)
Create a map of resources to copy.

Parameters:
  `fromResources` - The source resources.
  `toDir` - the destination directory.
  `mapper` - a `FileNameMapper` value.
Returns:
  a map of source resource to array of destination files.
Since:
  Ant 1.7

### doFileOperations

protected void doFileOperations()
Actually does the file (and possibly empty directory) copies. This is a good method for subclasses to override.

### doResourceOperations

protected void doResourceOperations(Map<Resource,String[]> map)
Actually does the resource copies. This is a good method for subclasses to override.

Parameters:
  `map` - a map of source resource to array of destination files.
Since:
  Ant 1.7

### supportsNonFileResources

protected boolean supportsNonFileResources()
Whether this task can deal with non-file resources.

<copy> can while <move> can't since we don't know how to remove non-file resources.

This implementation returns true only if this task is <copy>. Any subclass of this class that also wants to support non-file resources needs to override this method. We need to do so for backwards compatibility reasons since we can't expect subclasses to support resources.

Returns:
  true if this task supports non file resources.
Since:
  Ant 1.7