org.apache.tools.ant.taskdefs

Class Zip

public class Zip extends MatchingTask

Create a Zip file.

Since: Ant 1.1

UNKNOWN: category="packaging"

Nested Class Summary
static classZip.ArchiveState
Holds the up-to-date status and the out-of-date resources of the original archive.
static classZip.Duplicate
Possible behaviors when a duplicate file is added: "add", "preserve" or "fail"
static classZip.UnicodeExtraField
Policiy for creation of Unicode extra fields: never, always or not-encodeable.
static classZip.WhenEmpty
Possible behaviors when there are no matching files for the task: "fail", "skip", or "create".
Field Summary
protected HashtableaddedDirs
protected StringarchiveType
protected booleandoubleFilePass
If this flag is true, execute() will run most operations twice, the first time with skipWriting set to true and the second time with setting it to false.
protected Stringduplicate
protected StringemptyBehavior
protected Hashtableentries
protected booleanskipWriting
whether the methods should just perform some sort of dry-run.
protected FilezipFile
Method Summary
voidadd(ResourceCollection a)
Add a collection of resources to be archived.
voidaddFileset(FileSet set)
Adds a set of files.
protected voidaddParentDirs(File baseDir, String entry, ZipOutputStream zOut, String prefix, int dirMode)
Ensure all parent dirs of a given entry have been added.
protected voidaddResources(FileSet fileset, Resource[] resources, ZipOutputStream zOut)
Add the given resources.
protected voidaddResources(ResourceCollection rc, Resource[] resources, ZipOutputStream zOut)
Add the given resources.
voidaddZipfileset(ZipFileSet set)
Adds a set of files that can be read from an archive and be given a prefix/fullpath.
voidaddZipGroupFileset(FileSet set)
Adds a group of zip files.
protected voidcleanUp()
Do any clean up necessary to allow this instance to be used again.
protected booleancreateEmptyZip(File zipFile)
Create an empty zip file
voidexecute()
validate and build
voidexecuteMain()
Build the zip file.
protected voidfinalizeZipOutputStream(ZipOutputStream zOut)
method for subclasses to override
StringgetComment()
Comment of the archive
Zip.UnicodeExtraFieldgetCreateUnicodeExtraFields()
Whether Unicode extra fields will be created.
protected ZipExtraField[]getCurrentExtraFields()
Provides the extra fields for the zip entry currently being added to the archive - if any.
FilegetDestFile()
The file to create.
StringgetEncoding()
Encoding to use for filenames.
booleangetFallBackToUTF8()
Whether to fall back to UTF-8 if a name cannot be enoded using the specified encoding.
intgetLevel()
Get the compression level.
protected Zip.ArchiveStategetNonFileSetResourcesToAdd(ResourceCollection[] rcs, File zipFile, boolean needsUpdate)
Collect the resources that are newer than the corresponding entries (or missing) in the original archive.
booleangetPreserve0Permissions()
Assume 0 Unix mode is intentional.
protected Zip.ArchiveStategetResourcesToAdd(ResourceCollection[] rcs, File zipFile, boolean needsUpdate)
Collect the resources that are newer than the corresponding entries (or missing) in the original archive.
protected Zip.ArchiveStategetResourcesToAdd(FileSet[] filesets, File zipFile, boolean needsUpdate)
Collect the resources that are newer than the corresponding entries (or missing) in the original archive.
booleangetUseLanguageEnodingFlag()
Whether the language encoding flag will be used.
protected Resource[][]grabNonFileSetResources(ResourceCollection[] rcs)
Fetch all included and not excluded resources from the collections.
protected Resource[][]grabResources(FileSet[] filesets)
Fetch all included and not excluded resources from the sets.
protected booleanhasUpdatedFile()
Get the value of the updatedFile attribute.
protected voidinitZipOutputStream(ZipOutputStream zOut)
method for subclasses to override
protected booleanisAddingNewFiles()
Indicates if the task is adding new files into the archive as opposed to copying back unchanged files from the backup copy
booleanisCompress()
Whether we want to compress the files or only store them;
protected static booleanisEmpty(Resource[][] r)
Check is the resource arrays are empty.
protected booleanisFirstPass()
Whether this is the first time the archive building methods are invoked.
booleanisInUpdateMode()
Are we updating an existing archive?
protected voidlogWhenWriting(String msg, int level)
Logs a message at the given output level, but only if this is the pass that will actually create the archive.
voidreset()
Makes this instance reset all attributes to their default values and forget all children.
protected Resource[]selectDirectoryResources(Resource[] orig)
Drops all non-directory resources from the given array.
protected Resource[]selectFileResources(Resource[] orig)
Drops all non-file resources from the given array.
protected Resource[]selectResources(Resource[] orig, ResourceSelector selector)
Drops all resources from the given array that are not selected
voidsetBasedir(File baseDir)
Directory from which to archive files; optional.
voidsetComment(String comment)
Comment to use for archive.
voidsetCompress(boolean c)
Whether we want to compress the files or only store them; optional, default=true;
voidsetCreateUnicodeExtraFields(Zip.UnicodeExtraField b)
Whether Unicode extra fields will be created.
protected voidsetCurrentExtraFields(ZipExtraField[] extra)
Sets the extra fields for the zip entry currently being added to the archive - if any.
voidsetDestFile(File destFile)
The file to create; required.
voidsetDuplicate(Zip.Duplicate df)
Sets behavior for when a duplicate file is about to be added - one of add, preserve or fail.
voidsetEncoding(String encoding)
Encoding to use for filenames, defaults to the platform's default encoding.
voidsetFallBackToUTF8(boolean b)
Whether to fall back to UTF-8 if a name cannot be enoded using the specified encoding.
voidsetFile(File file)
This is the name/location of where to create the file.
voidsetFilesonly(boolean f)
If true, emulate Sun's jar utility by not adding parent directories; optional, defaults to false.
voidsetKeepCompression(boolean keep)
Whether the original compression of entries coming from a ZIP archive should be kept (for example when updating an archive).
voidsetLevel(int level)
Set the compression level to use.
voidsetPreserve0Permissions(boolean b)
Assume 0 Unix mode is intentional.
voidsetRoundUp(boolean r)
Whether the file modification times will be rounded up to the next even number of seconds.
voidsetUpdate(boolean c)
If true, updates an existing file, otherwise overwrite any existing one; optional defaults to false.
voidsetUseLanguageEncodingFlag(boolean b)
Whether to set the language encoding flag.
voidsetWhenempty(Zip.WhenEmpty we)
Sets behavior of the task when no files match.
voidsetZipfile(File zipFile)
This is the name/location of where to create the .zip file.
protected voidzipDir(File dir, ZipOutputStream zOut, String vPath, int mode)
Add a directory to the zip stream.
protected voidzipDir(File dir, ZipOutputStream zOut, String vPath, int mode, ZipExtraField[] extra)
Add a directory to the zip stream.
protected voidzipDir(Resource dir, ZipOutputStream zOut, String vPath, int mode, ZipExtraField[] extra)
Add a directory to the zip stream.
protected voidzipFile(InputStream in, ZipOutputStream zOut, String vPath, long lastModified, File fromArchive, int mode)
Adds a new entry to the archive, takes care of duplicates as well.
protected voidzipFile(InputStream in, ZipOutputStream zOut, String vPath, long lastModified, File fromArchive, int mode, ZipExtraField[] extra)
Adds a new entry to the archive, takes care of duplicates as well.
protected voidzipFile(File file, ZipOutputStream zOut, String vPath, int mode)
Method that gets called when adding from java.io.File instances.

Field Detail

addedDirs

protected Hashtable addedDirs

archiveType

protected String archiveType

doubleFilePass

protected boolean doubleFilePass
If this flag is true, execute() will run most operations twice, the first time with skipWriting set to true and the second time with setting it to false.

The only situation in Ant's current code base where this is ever going to be true is if the jar task has been configured with a filesetmanifest other than "skip".

duplicate

protected String duplicate

emptyBehavior

protected String emptyBehavior

entries

protected Hashtable entries

skipWriting

protected boolean skipWriting
whether the methods should just perform some sort of dry-run.

Will only ever be true in the first pass if the task performs two passes because doubleFilePass is true.

zipFile

protected File zipFile

Method Detail

add

public void add(ResourceCollection a)
Add a collection of resources to be archived.

Parameters: a the resources to archive

Since: Ant 1.7

addFileset

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

Parameters: set the fileset to add

addParentDirs

protected final void addParentDirs(File baseDir, String entry, ZipOutputStream zOut, String prefix, int dirMode)
Ensure all parent dirs of a given entry have been added.

Parameters: baseDir the base directory to use (may be null) entry the entry name to create directories from zOut the stream to write to prefix a prefix to place on the created entries dirMode the directory mode

Throws: IOException on error

Since: Ant 1.5.2

addResources

protected final void addResources(FileSet fileset, Resource[] resources, ZipOutputStream zOut)
Add the given resources.

Parameters: fileset may give additional information like fullpath or permissions. resources the resources to add zOut the stream to write to

Throws: IOException on error

Since: Ant 1.5.2

addResources

protected final void addResources(ResourceCollection rc, Resource[] resources, ZipOutputStream zOut)
Add the given resources.

Parameters: rc may give additional information like fullpath or permissions. resources the resources to add zOut the stream to write to

Throws: IOException on error

Since: Ant 1.7

addZipfileset

public void addZipfileset(ZipFileSet set)
Adds a set of files that can be read from an archive and be given a prefix/fullpath.

Parameters: set the zipfileset to add

addZipGroupFileset

public void addZipGroupFileset(FileSet set)
Adds a group of zip files.

Parameters: set the group (a fileset) to add

cleanUp

protected void cleanUp()
Do any clean up necessary to allow this instance to be used again.

When we get here, the Zip file has been closed and all we need to do is to reset some globals.

This method will only reset globals that have been changed during execute(), it will not alter the attributes or nested child elements. If you want to reset the instance so that you can later zip a completely different set of files, you must use the reset method.

See Also: Zip

createEmptyZip

protected boolean createEmptyZip(File zipFile)
Create an empty zip file

Parameters: zipFile the zip file

Returns: true for historic reasons

Throws: BuildException on error

execute

public void execute()
validate and build

Throws: BuildException on error

executeMain

public void executeMain()
Build the zip file. This is called twice if doubleFilePass is true.

Throws: BuildException on error

finalizeZipOutputStream

protected void finalizeZipOutputStream(ZipOutputStream zOut)
method for subclasses to override

Parameters: zOut the zip output stream

Throws: IOException on output error BuildException on other errors

getComment

public String getComment()
Comment of the archive

Returns: Comment of the archive.

Since: Ant 1.6.3

getCreateUnicodeExtraFields

public Zip.UnicodeExtraField getCreateUnicodeExtraFields()
Whether Unicode extra fields will be created.

Since: Ant 1.8.0

getCurrentExtraFields

protected final ZipExtraField[] getCurrentExtraFields()
Provides the extra fields for the zip entry currently being added to the archive - if any.

Since: Ant 1.8.0

getDestFile

public File getDestFile()
The file to create.

Returns: the destination file

Since: Ant 1.5.2

getEncoding

public String getEncoding()
Encoding to use for filenames.

Returns: the name of the encoding to use

Since: Ant 1.5.2

getFallBackToUTF8

public boolean getFallBackToUTF8()
Whether to fall back to UTF-8 if a name cannot be enoded using the specified encoding.

Since: Ant 1.8.0

getLevel

public int getLevel()
Get the compression level.

Returns: compression level.

Since: Ant 1.7

getNonFileSetResourcesToAdd

protected Zip.ArchiveState getNonFileSetResourcesToAdd(ResourceCollection[] rcs, File zipFile, boolean needsUpdate)
Collect the resources that are newer than the corresponding entries (or missing) in the original archive.

If we are going to recreate the archive instead of updating it, all resources should be considered as new, if a single one is. Because of this, subclasses overriding this method must call super.getResourcesToAdd and indicate with the third arg if they already know that the archive is out-of-date.

Parameters: rcs The filesets to grab resources from zipFile intended archive file (may or may not exist) needsUpdate whether we already know that the archive is out-of-date. Subclasses overriding this method are supposed to set this value correctly in their call to super.getResourcesToAdd.

Returns: an array of resources to add for each fileset passed in as well as a flag that indicates whether the archive is uptodate.

Throws: BuildException if it likes

getPreserve0Permissions

public boolean getPreserve0Permissions()
Assume 0 Unix mode is intentional.

Since: Ant 1.8.0

getResourcesToAdd

protected Zip.ArchiveState getResourcesToAdd(ResourceCollection[] rcs, File zipFile, boolean needsUpdate)
Collect the resources that are newer than the corresponding entries (or missing) in the original archive.

If we are going to recreate the archive instead of updating it, all resources should be considered as new, if a single one is. Because of this, subclasses overriding this method must call super.getResourcesToAdd and indicate with the third arg if they already know that the archive is out-of-date.

This method first delegates to getNonFileSetResourceToAdd and then invokes the FileSet-arg version. All this to keep backwards compatibility for subclasses that don't know how to deal with non-FileSet ResourceCollections.

Parameters: rcs The resource collections to grab resources from zipFile intended archive file (may or may not exist) needsUpdate whether we already know that the archive is out-of-date. Subclasses overriding this method are supposed to set this value correctly in their call to super.getResourcesToAdd.

Returns: an array of resources to add for each fileset passed in as well as a flag that indicates whether the archive is uptodate.

Throws: BuildException if it likes

Since: Ant 1.7

getResourcesToAdd

protected Zip.ArchiveState getResourcesToAdd(FileSet[] filesets, File zipFile, boolean needsUpdate)
Collect the resources that are newer than the corresponding entries (or missing) in the original archive.

If we are going to recreate the archive instead of updating it, all resources should be considered as new, if a single one is. Because of this, subclasses overriding this method must call super.getResourcesToAdd and indicate with the third arg if they already know that the archive is out-of-date.

Parameters: filesets The filesets to grab resources from zipFile intended archive file (may or may not exist) needsUpdate whether we already know that the archive is out-of-date. Subclasses overriding this method are supposed to set this value correctly in their call to super.getResourcesToAdd.

Returns: an array of resources to add for each fileset passed in as well as a flag that indicates whether the archive is uptodate.

Throws: BuildException if it likes

getUseLanguageEnodingFlag

public boolean getUseLanguageEnodingFlag()
Whether the language encoding flag will be used.

Since: Ant 1.8.0

grabNonFileSetResources

protected Resource[][] grabNonFileSetResources(ResourceCollection[] rcs)
Fetch all included and not excluded resources from the collections.

Included directories will precede included files.

Parameters: rcs an array of resource collections

Returns: the resources included

Since: Ant 1.7

grabResources

protected Resource[][] grabResources(FileSet[] filesets)
Fetch all included and not excluded resources from the sets.

Included directories will precede included files.

Parameters: filesets an array of filesets

Returns: the resources included

Since: Ant 1.5.2

hasUpdatedFile

protected boolean hasUpdatedFile()
Get the value of the updatedFile attribute. This should only be called after executeMain has been called.

Returns: true if executeMain has written to the zip file.

initZipOutputStream

protected void initZipOutputStream(ZipOutputStream zOut)
method for subclasses to override

Parameters: zOut the zip output stream

Throws: IOException on output error BuildException on other errors

isAddingNewFiles

protected final boolean isAddingNewFiles()
Indicates if the task is adding new files into the archive as opposed to copying back unchanged files from the backup copy

Returns: true if adding new files

isCompress

public boolean isCompress()
Whether we want to compress the files or only store them;

Returns: true if the files are to be compressed

Since: Ant 1.5.2

isEmpty

protected static final boolean isEmpty(Resource[][] r)
Check is the resource arrays are empty.

Parameters: r the arrays to check

Returns: true if all individual arrays are empty

Since: Ant 1.5.2

isFirstPass

protected final boolean isFirstPass()
Whether this is the first time the archive building methods are invoked.

Returns: true if either doubleFilePass is false or skipWriting is true.

Since: Ant 1.8.0

isInUpdateMode

public boolean isInUpdateMode()
Are we updating an existing archive?

Returns: true if updating an existing archive

logWhenWriting

protected void logWhenWriting(String msg, int level)
Logs a message at the given output level, but only if this is the pass that will actually create the archive.

Since: Ant 1.8.0

reset

public void reset()
Makes this instance reset all attributes to their default values and forget all children.

Since: Ant 1.5

See Also: Zip

selectDirectoryResources

protected Resource[] selectDirectoryResources(Resource[] orig)
Drops all non-directory resources from the given array.

Parameters: orig the resources to filter

Returns: the filters resources

Since: Ant 1.8.0

selectFileResources

protected Resource[] selectFileResources(Resource[] orig)
Drops all non-file resources from the given array.

Parameters: orig the resources to filter

Returns: the filters resources

Since: Ant 1.6

selectResources

protected Resource[] selectResources(Resource[] orig, ResourceSelector selector)
Drops all resources from the given array that are not selected

Parameters: orig the resources to filter

Returns: the filters resources

Since: Ant 1.8.0

setBasedir

public void setBasedir(File baseDir)
Directory from which to archive files; optional.

Parameters: baseDir the base directory

setComment

public void setComment(String comment)
Comment to use for archive.

Parameters: comment The content of the comment.

Since: Ant 1.6.3

setCompress

public void setCompress(boolean c)
Whether we want to compress the files or only store them; optional, default=true;

Parameters: c if true, compress the files

setCreateUnicodeExtraFields

public void setCreateUnicodeExtraFields(Zip.UnicodeExtraField b)
Whether Unicode extra fields will be created.

Since: Ant 1.8.0

setCurrentExtraFields

protected final void setCurrentExtraFields(ZipExtraField[] extra)
Sets the extra fields for the zip entry currently being added to the archive - if any.

Since: Ant 1.8.0

setDestFile

public void setDestFile(File destFile)
The file to create; required.

Parameters: destFile The new destination File

Since: Ant 1.5

setDuplicate

public void setDuplicate(Zip.Duplicate df)
Sets behavior for when a duplicate file is about to be added - one of add, preserve or fail. Possible values are: add (keep both of the files); preserve (keep the first version of the file found); fail halt a problem Default for zip tasks is add

Parameters: df a Duplicate enumerated value

setEncoding

public void setEncoding(String encoding)
Encoding to use for filenames, defaults to the platform's default encoding.

For a list of possible values see http://java.sun.com/j2se/1.5.0/docs/guide/intl/encoding.doc.html.

Parameters: encoding the encoding name

setFallBackToUTF8

public void setFallBackToUTF8(boolean b)
Whether to fall back to UTF-8 if a name cannot be enoded using the specified encoding.

Defaults to false.

Since: Ant 1.8.0

setFile

public void setFile(File file)

Deprecated: since 1.5.x. Use setDestFile(File) instead.

This is the name/location of where to create the file.

Parameters: file the path of the zipFile

Since: Ant 1.5

UNKNOWN: ignore="true"

setFilesonly

public void setFilesonly(boolean f)
If true, emulate Sun's jar utility by not adding parent directories; optional, defaults to false.

Parameters: f if true, emulate sun's jar by not adding parent directories

setKeepCompression

public void setKeepCompression(boolean keep)
Whether the original compression of entries coming from a ZIP archive should be kept (for example when updating an archive). Default is false.

Parameters: keep if true, keep the original compression

Since: Ant 1.6

setLevel

public void setLevel(int level)
Set the compression level to use. Default is ZipOutputStream.DEFAULT_COMPRESSION.

Parameters: level compression level.

Since: Ant 1.7

setPreserve0Permissions

public void setPreserve0Permissions(boolean b)
Assume 0 Unix mode is intentional.

Since: Ant 1.8.0

setRoundUp

public void setRoundUp(boolean r)
Whether the file modification times will be rounded up to the next even number of seconds.

Zip archives store file modification times with a granularity of two seconds, so the times will either be rounded up or down. If you round down, the archive will always seem out-of-date when you rerun the task, so the default is to round up. Rounding up may lead to a different type of problems like JSPs inside a web archive that seem to be slightly more recent than precompiled pages, rendering precompilation useless.

Parameters: r a boolean value

Since: Ant 1.6.2

setUpdate

public void setUpdate(boolean c)
If true, updates an existing file, otherwise overwrite any existing one; optional defaults to false.

Parameters: c if true, updates an existing zip file

setUseLanguageEncodingFlag

public void setUseLanguageEncodingFlag(boolean b)
Whether to set the language encoding flag.

Since: Ant 1.8.0

setWhenempty

public void setWhenempty(Zip.WhenEmpty we)
Sets behavior of the task when no files match. Possible values are: fail (throw an exception and halt the build); skip (do not create any archive, but issue a warning); create (make an archive with no entries). Default for zip tasks is skip; for jar tasks, create.

Parameters: we a WhenEmpty enumerated value

setZipfile

public void setZipfile(File zipFile)

Deprecated: since 1.5.x. Use setDestFile(File) instead.

This is the name/location of where to create the .zip file.

Parameters: zipFile the path of the zipFile

UNKNOWN: ignore="true"

zipDir

protected void zipDir(File dir, ZipOutputStream zOut, String vPath, int mode)
Add a directory to the zip stream.

Parameters: dir the directort to add to the archive zOut the stream to write to vPath the name this entry shall have in the archive mode the Unix permissions to set.

Throws: IOException on error

Since: Ant 1.5.2

zipDir

protected void zipDir(File dir, ZipOutputStream zOut, String vPath, int mode, ZipExtraField[] extra)
Add a directory to the zip stream.

Parameters: dir the directory to add to the archive zOut the stream to write to vPath the name this entry shall have in the archive mode the Unix permissions to set. extra ZipExtraFields to add

Throws: IOException on error

Since: Ant 1.6.3

zipDir

protected void zipDir(Resource dir, ZipOutputStream zOut, String vPath, int mode, ZipExtraField[] extra)
Add a directory to the zip stream.

Parameters: dir the directory to add to the archive zOut the stream to write to vPath the name this entry shall have in the archive mode the Unix permissions to set. extra ZipExtraFields to add

Throws: IOException on error

Since: Ant 1.8.0

zipFile

protected void zipFile(InputStream in, ZipOutputStream zOut, String vPath, long lastModified, File fromArchive, int mode)
Adds a new entry to the archive, takes care of duplicates as well.

Parameters: in the stream to read data for the entry from. The caller of the method is responsible for closing the stream. zOut the stream to write to. vPath the name this entry shall have in the archive. lastModified last modification time for the entry. fromArchive the original archive we are copying this entry from, will be null if we are not copying from an archive. mode the Unix permissions to set.

Throws: IOException on error

Since: Ant 1.5.2

zipFile

protected final void zipFile(InputStream in, ZipOutputStream zOut, String vPath, long lastModified, File fromArchive, int mode, ZipExtraField[] extra)
Adds a new entry to the archive, takes care of duplicates as well.

Parameters: in the stream to read data for the entry from. The caller of the method is responsible for closing the stream. zOut the stream to write to. vPath the name this entry shall have in the archive. lastModified last modification time for the entry. fromArchive the original archive we are copying this entry from, will be null if we are not copying from an archive. mode the Unix permissions to set. extra ZipExtraFields to add

Throws: IOException on error

Since: Ant 1.8.0

zipFile

protected void zipFile(File file, ZipOutputStream zOut, String vPath, int mode)
Method that gets called when adding from java.io.File instances.

This implementation delegates to the six-arg version.

Parameters: file the file to add to the archive zOut the stream to write to vPath the name this entry shall have in the archive mode the Unix permissions to set.

Throws: IOException on error

Since: Ant 1.5.2