Package jetbrains.buildServer.zip

Class MemoryConservativeZipFactory

java.lang.Object

jetbrains.buildServer.zip.BigFileZipFactory

jetbrains.buildServer.zip.MemoryConservativeZipFactory

All Implemented Interfaces:

ZipFactory

public final class MemoryConservativeZipFactory
extends BigFileZipFactory

Overrides ZipFactory.createZipArchive(String) to return a custom ZipWriter which conserves memory by reducing the managed overhead as much as possible.

Since:

2017.2.4, 2018.1

Author:

Andrey Shcheglov <mailto:andrey.shcheglov@jetbrains.com>

See Also:

DiskBasedCenZipFactory

Field Summary

Fields inherited from class jetbrains.buildServer.zip.BigFileZipFactory

COMMONS_COMPRESS, CONSERVATIVE, DISK_BASED

Constructor Summary

Constructors

Constructor	Description
MemoryConservativeZipFactory(boolean autoCreateDirectories, boolean rewriteExistingFiles)	Creates a new ZIP factory.

Method Summary

Modifier and Type	Method	Description
ZipWriter	createZipArchive(String name)	Creates a zip archive.
boolean	isFileExist(String name)	Checks whether the file exists.
protected ZipWriter	makeNewZipWriter(File file)
ZipReader	openZipArchive(String name)	Opens an existent zip archive to read.
void	rename(String sourceName, String targetName)	Renames or moves the file.
void	setLevel(int level)	Sets the compression level for entries which are ZipEntry.DEFLATED.
String	toString()

Methods inherited from class jetbrains.buildServer.zip.BigFileZipFactory

makeNewZipReader, newInstance, newSharedInstance

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryConservativeZipFactory

public MemoryConservativeZipFactory(boolean autoCreateDirectories,
                                    boolean rewriteExistingFiles)

Creates a new ZIP factory.

Parameters:

autoCreateDirectories - whether directories parent to the target ZIP file should be automatically created (only affects ZipFactory.createZipArchive(String) behaviour).

rewriteExistingFiles - whether the target ZIP file should be silently overwritten if it exists (only affects ZipFactory.createZipArchive(String) behaviour).

Method Detail

makeNewZipWriter

@NotNull
protected ZipWriter makeNewZipWriter(@NotNull
                                     File file)
                              throws IOException

Overrides:

makeNewZipWriter in class BigFileZipFactory

Throws:

IOException

See Also:

BigFileZipFactory.makeNewZipWriter(File)

createZipArchive

@NotNull
public final ZipWriter createZipArchive(@NotNull
                                        String name)
                                 throws IOException

Creates a zip archive.

Specified by:

createZipArchive in interface ZipFactory

Parameters:

name - path and name of a zip file to create.

Returns:

zip writer.

Throws:

IOException

See Also:

ZipFactory.createZipArchive(String)

openZipArchive

public ZipReader openZipArchive(String name)
                         throws IOException,
                                IllegalStateException

Description copied from interface: ZipFactory

Opens an existent zip archive to read.

Specified by:

openZipArchive in interface ZipFactory

Parameters:

name - path and name of a zip file to create.

Returns:

zip reader.

Throws:

IOException

IllegalStateException

isFileExist

public boolean isFileExist(String name)

Description copied from interface: ZipFactory

Checks whether the file exists.

Specified by:

isFileExist in interface ZipFactory

Parameters:

name - file path and name.

Returns:

exists.

rename

public void rename(String sourceName,
                   String targetName)
            throws IOException

Description copied from interface: ZipFactory

Renames or moves the file.

Specified by:

rename in interface ZipFactory

Parameters:

sourceName - an existent file path and name to rename.

targetName - new path and name.

Throws:

IOException - when couldn't rename.

setLevel

public final void setLevel(int level)

Sets the compression level for entries which are ZipEntry.DEFLATED. The default setting is Deflater.DEFAULT_COMPRESSION.

This method only affects ZipFactory.createZipArchive(String) behaviour.

Specified by:

setLevel in interface ZipFactory

Parameters:

level - the compression level (0-9).

See Also:

ZipFactory.setLevel(int)

toString

public final String toString()

Overrides:

toString in class Object

Since:

2017.2.4, 2018.1

See Also:

Object.toString()