ZipFile Class Reference

Decodes a ZIP file from a stream. More...

#include <juce_ZipFile.h>

Classes
class	Builder
	Used to create a new zip file. More...
struct	ZipEntry
	Contains information about one of the entries in a ZipFile. More...

Public Types
enum class	OverwriteFiles { no , yes }
enum class	FollowSymlinks { no , yes }

Public Member Functions
	ZipFile (const File &file)
	Creates a ZipFile to read a specific file.
	ZipFile (InputStream *inputStream, bool deleteStreamWhenDestroyed)
	Creates a ZipFile for a given stream.
	ZipFile (InputStream &inputStream)
	Creates a ZipFile for a given stream.
	ZipFile (InputSource *inputSource)
	Creates a ZipFile for an input source.
	~ZipFile ()
	Destructor.
int	getNumEntries () const noexcept
	Returns the number of items in the zip file.
const ZipEntry *	getEntry (int index) const noexcept
	Returns a structure that describes one of the entries in the zip file.
int	getIndexOfFileName (const String &fileName, bool ignoreCase=false) const noexcept
	Returns the index of the first entry with a given filename.
const ZipEntry *	getEntry (const String &fileName, bool ignoreCase=false) const noexcept
	Returns a structure that describes one of the entries in the zip file.
void	sortEntriesByFilename ()
	Sorts the list of entries, based on the filename.
InputStream *	createStreamForEntry (int index)
	Creates a stream that can read from one of the zip file's entries.
InputStream *	createStreamForEntry (const ZipEntry &entry)
	Creates a stream that can read from one of the zip file's entries.
Result	uncompressTo (const File &targetDirectory, bool shouldOverwriteFiles=true)
	Uncompresses all of the files in the zip file.
Result	uncompressEntry (int index, const File &targetDirectory, bool shouldOverwriteFiles=true)
	Uncompresses one of the entries from the zip file.
Result	uncompressEntry (int index, const File &targetDirectory, OverwriteFiles overwriteFiles, FollowSymlinks followSymlinks)
	Uncompresses one of the entries from the zip file.

Detailed Description

Decodes a ZIP file from a stream.

This can enumerate the items in a ZIP file and can create suitable stream objects to read each one.

Member Enumeration Documentation

OverwriteFiles

enum class ZipFile::OverwriteFiles

strong

Enumerator
no
yes

FollowSymlinks

enum class ZipFile::FollowSymlinks

strong

Enumerator
no
yes

Constructor & Destructor Documentation

ZipFile() [1/4]

ZipFile::ZipFile ( const File & file )

explicit

Creates a ZipFile to read a specific file.

ZipFile() [2/4]

ZipFile::ZipFile	(	InputStream *	inputStream,
		bool	deleteStreamWhenDestroyed )

Creates a ZipFile for a given stream.

Parameters

inputStream	the stream to read from
deleteStreamWhenDestroyed	if set to true, the object passed-in will be deleted when this ZipFile object is deleted

ZipFile() [3/4]

ZipFile::ZipFile ( InputStream & inputStream )

explicit

Creates a ZipFile for a given stream.

The stream will not be owned or deleted by this class - if you want the ZipFile to manage the stream's lifetime, use the other constructor.

ZipFile() [4/4]

ZipFile::ZipFile ( InputSource * inputSource )

explicit

Creates a ZipFile for an input source.

The inputSource object will be owned by the zip file, which will delete it later when not needed.

~ZipFile()

ZipFile::~ZipFile

(

)

Destructor.

Member Function Documentation

getNumEntries()

int ZipFile::getNumEntries ( ) const

noexcept

Returns the number of items in the zip file.

getEntry() [1/2]

const ZipEntry * ZipFile::getEntry ( int index ) const

noexcept

Returns a structure that describes one of the entries in the zip file.

This may return a nullptr if the index is out of range.

See also

ZipFile::ZipEntry

getIndexOfFileName()

int ZipFile::getIndexOfFileName ( const String & fileName, bool ignoreCase = false ) const

noexcept

Returns the index of the first entry with a given filename.

This uses a case-sensitive comparison to look for a filename in the list of entries. It might return -1 if no match is found.

See also

ZipFile::ZipEntry

getEntry() [2/2]

const ZipEntry * ZipFile::getEntry ( const String & fileName, bool ignoreCase = false ) const

noexcept

Returns a structure that describes one of the entries in the zip file.

This uses a case-sensitive comparison to look for a filename in the list of entries. It might return 0 if no match is found.

See also

ZipFile::ZipEntry

sortEntriesByFilename()

void ZipFile::sortEntriesByFilename

(

)

Sorts the list of entries, based on the filename.

createStreamForEntry() [1/2]

InputStream * ZipFile::createStreamForEntry

(

int

index

)

Creates a stream that can read from one of the zip file's entries.

The stream that is returned must be deleted by the caller (and a nullptr might be returned if a stream can't be opened for some reason).

The stream must not be used after the ZipFile object that created has been deleted.

Note that if the ZipFile was created with a user-supplied InputStream object, then all the streams which are created by this method will by trying to share the same source stream, so cannot be safely used on multiple threads! (But if you create the ZipFile from a File or InputSource, then it is safe to do this).

createStreamForEntry() [2/2]

InputStream * ZipFile::createStreamForEntry

(

const ZipEntry &

entry

)

Creates a stream that can read from one of the zip file's entries.

The stream that is returned must be deleted by the caller (and a nullptr might be returned if a stream can't be opened for some reason).

The stream must not be used after the ZipFile object that created has been deleted.

Note that if the ZipFile was created with a user-supplied InputStream object, then all the streams which are created by this method will by trying to share the same source stream, so cannot be safely used on multiple threads! (But if you create the ZipFile from a File or InputSource, then it is safe to do this).

uncompressTo()

Result ZipFile::uncompressTo	(	const File &	targetDirectory,
		bool	shouldOverwriteFiles = true )

Uncompresses all of the files in the zip file.

This will expand all the entries into a target directory. The relative paths of the entries are used.

Parameters

targetDirectory	the root folder to uncompress to
shouldOverwriteFiles	whether to overwrite existing files with similarly-named ones

Returns

success if the file is successfully unzipped

uncompressEntry() [1/2]

Result ZipFile::uncompressEntry	(	int	index,
		const File &	targetDirectory,
		bool	shouldOverwriteFiles = true )

Uncompresses one of the entries from the zip file.

This will expand the entry and write it in a target directory. The entry's path is used to determine which subfolder of the target should contain the new file.

Parameters

index	the index of the entry to uncompress - this must be a valid index between 0 and (getNumEntries() - 1).
targetDirectory	the root folder to uncompress into
shouldOverwriteFiles	whether to overwrite existing files with similarly-named ones

Returns

success if all the files are successfully unzipped

uncompressEntry() [2/2]

Result ZipFile::uncompressEntry	(	int	index,
		const File &	targetDirectory,
		OverwriteFiles	overwriteFiles,
		FollowSymlinks	followSymlinks )

Uncompresses one of the entries from the zip file.

This will expand the entry and write it in a target directory. The entry's path is used to determine which subfolder of the target should contain the new file.

Parameters

index	the index of the entry to uncompress - this must be a valid index between 0 and (getNumEntries() - 1).
targetDirectory	the root folder to uncompress into
overwriteFiles	whether to overwrite existing files with similarly-named ones
followSymlinks	whether to follow symlinks inside the target directory

Returns

success if all the files are successfully unzipped

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The documentation for this class was generated from the following file:

• juce_ZipFile.h