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
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
protected  java.util.Hashtable completeDirMap
           
protected  java.io.File destDir
           
protected  java.io.File destFile
           
protected  java.util.Hashtable dirCopyMap
           
protected  boolean failonerror
           
protected  java.io.File file
           
protected  java.util.Hashtable fileCopyMap
           
protected  java.util.Vector filesets
           
protected  FileUtils fileUtils
           
protected  boolean filtering
           
protected  boolean flatten
           
protected  boolean forceOverwrite
           
protected  boolean includeEmpty
           
protected  Mapper mapperElement
           
protected  boolean preserveLastModified
           
protected  int verbosity
           
 
Fields inherited from class org.apache.tools.ant.Task
description, location, target, taskName, taskType, wrapper
 
Fields inherited from class org.apache.tools.ant.ProjectComponent
project
 
Constructor Summary
Copy()
          Copy task constructor.
 
Method Summary
 void add(FileNameMapper fileNameMapper)
          A nested filenamemapper
 void addFileset(FileSet set)
          Adds a set of files to copy.
protected  void buildMap(java.io.File fromDir, java.io.File toDir, java.lang.String[] names, FileNameMapper mapper, java.util.Hashtable map)
          Add to a map of files/directories to copy
 FilterChain createFilterChain()
          Adds a FilterChain.
 FilterSet createFilterSet()
          Adds a filterset.
 Mapper createMapper()
          Defines the mapper to map source to destination files.
protected  void doFileOperations()
          Actually does the file (and possibly empty directory) copies.
 void execute()
          Performs the copy operation.
 java.lang.String getEncoding()
           
protected  FileUtils getFileUtils()
           
protected  java.util.Vector getFilterChains()
          Get the filterchains being applied to this operation.
protected  java.util.Vector getFilterSets()
          Get the filtersets being applied to this operation.
 java.lang.String getOutputEncoding()
           
 boolean getPreserveLastModified()
          Whether to give the copied files the same last modified time as the original files.
 boolean isEnableMultipleMapping()
           
protected  void scan(java.io.File fromDir, java.io.File toDir, java.lang.String[] files, java.lang.String[] dirs)
          Compares source files to destination files to see if they should be copied.
 void setEnableMultipleMappings(boolean enableMultipleMappings)
          Attribute to handle mappers that return multiple mappings for a given source path.
 void setEncoding(java.lang.String encoding)
          Sets the character encoding
 void setFailOnError(boolean failonerror)
          If false, note errors to the output but keep going.
 void setFile(java.io.File file)
          Sets a single source file to copy.
 void setFiltering(boolean filtering)
          If true, enables filtering.
 void setFlatten(boolean flatten)
          When copying directory trees, the files can be "flattened" into a single directory.
 void setGranularity(long granularity)
          The number of milliseconds leeway to give before deciding a target is out of date.
 void setIncludeEmptyDirs(boolean includeEmpty)
          Used to copy empty directories.
 void setOutputEncoding(java.lang.String encoding)
          Sets the character encoding for output files.
 void setOverwrite(boolean overwrite)
          Overwrite any existing destination file(s).
 void setPreserveLastModified(boolean preserve)
          Give the copied files the same last modified time as the original files.
 void setPreserveLastModified(java.lang.String preserve)
          Deprecated. setPreserveLastModified(String) has been deprecated and replaced with setPreserveLastModified(boolean) to consistently let the Introspection mechanism work.
 void setTodir(java.io.File destDir)
          Sets the destination directory.
 void setTofile(java.io.File destFile)
          Sets the destination file.
 void setVerbose(boolean verbose)
          Used to force listing of all names of copied files.
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
getDescription, getLocation, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, init, isInvalid, log, log, maybeConfigure, perform, reconfigure, setDescription, setLocation, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType
 
Methods inherited from class org.apache.tools.ant.ProjectComponent
getProject, setProject
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

file

protected java.io.File file

destFile

protected java.io.File destFile

destDir

protected java.io.File destDir

filesets

protected java.util.Vector 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 java.util.Hashtable fileCopyMap

dirCopyMap

protected java.util.Hashtable dirCopyMap

completeDirMap

protected java.util.Hashtable completeDirMap

mapperElement

protected Mapper mapperElement

fileUtils

protected FileUtils fileUtils
Constructor Detail

Copy

public Copy()
Copy task constructor.

Method Detail

getFileUtils

protected FileUtils getFileUtils()
Returns:
the fileutils object

setFile

public void setFile(java.io.File file)
Sets a single source file to copy.

Parameters:
file - the file to copy

setTofile

public void setTofile(java.io.File destFile)
Sets the destination file.

Parameters:
destFile - the file to copy to

setTodir

public void setTodir(java.io.File destDir)
Sets the destination directory.

Parameters:
destDir - the destination directory

createFilterChain

public FilterChain createFilterChain()
Adds a FilterChain.

Returns:
a filter chain object

createFilterSet

public FilterSet createFilterSet()
Adds a filterset.

Returns:
a filter set object

setPreserveLastModified

public void setPreserveLastModified(java.lang.String preserve)
Deprecated. 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 perverse the modified time, default is false

getPreserveLastModified

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

Returns:
the preserveLastModified attribute
Since:
1.32, Ant 1.5

getFilterSets

protected java.util.Vector getFilterSets()
Get the filtersets being applied to this operation.

Returns:
a vector of FilterSet objects

getFilterChains

protected java.util.Vector getFilterChains()
Get the filterchains being applied to this operation.

Returns:
a vector of FilterChain objects

setFiltering

public void setFiltering(boolean filtering)
If true, enables filtering.

Parameters:
filtering - if true enable filtering, default is false

setOverwrite

public void setOverwrite(boolean overwrite)
Overwrite any 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.

setFlatten

public void setFlatten(boolean flatten)
When copying directory trees, the files can 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)
Used to force listing of all names of copied files.

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

setIncludeEmptyDirs

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

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

setEnableMultipleMappings

public void setEnableMultipleMappings(boolean enableMultipleMappings)
Attribute to handle 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:
1.6

isEnableMultipleMapping

public boolean isEnableMultipleMapping()
Returns:
the value of the enableMultipleMapping attribute

setFailOnError

public void setFailOnError(boolean failonerror)
If false, note errors to the output but keep going.

Parameters:
failonerror - true or false

addFileset

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

Parameters:
set - a set of files to copy

createMapper

public Mapper createMapper()
                    throws BuildException
Defines 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)
A nested filenamemapper

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

setEncoding

public void setEncoding(java.lang.String encoding)
Sets the character encoding

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

getEncoding

public java.lang.String getEncoding()
Returns:
the character encoding, null if not set.
Since:
1.32, Ant 1.5

setOutputEncoding

public void setOutputEncoding(java.lang.String encoding)
Sets the character encoding for output files.

Parameters:
encoding - the character encoding
Since:
Ant 1.6

getOutputEncoding

public java.lang.String getOutputEncoding()
Returns:
the character encoding for output files, null if not set.
Since:
Ant 1.6

setGranularity

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

Default is 0 milliseconds, or 2 seconds on DOS systems.

Since:
Ant 1.6.2

execute

public void execute()
             throws BuildException
Performs 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(java.io.File fromDir,
                    java.io.File toDir,
                    java.lang.String[] files,
                    java.lang.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

buildMap

protected void buildMap(java.io.File fromDir,
                        java.io.File toDir,
                        java.lang.String[] names,
                        FileNameMapper mapper,
                        java.util.Hashtable 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

doFileOperations

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



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