org.knopflerfish.framework.bundlestorage.file

Class Archive

java.lang.Object

org.knopflerfish.framework.bundlestorage.file.Archive

All Implemented Interfaces:

FileArchive

public class Archive
extends java.lang.Object
implements FileArchive

JAR file handling.

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	checkNativeLibrary(java.lang.String path) Check for native library in archive.
boolean	exists(java.lang.String path, boolean onlyDirs) Get a BundleResourceStream to named entry inside an Archive.
java.util.Enumeration<java.lang.String>	findResourcesPath(java.lang.String path) Returns an Enumeration of all the paths (String objects) to entries within the bundle whose longest sub-path matches the supplied path argument.
BundleGeneration	getBundleGeneration() Get bundle id for this archive.
BundleResourceStream	getBundleResourceStream(java.lang.String component) Get a BundleResourceStream to named entry inside an Archive.
byte[]	getClassBytes(java.lang.String classFile) Get a byte array containg the contents of named class file from the archive.
java.lang.String	getNativeLibrary(java.lang.String libNameKey) Get native code library filename.
int	getSubId() Get sub-archive id for this archive.
java.util.Set<java.lang.String>	listDir(java.lang.String path) Get a BundleResourceStream to named entry inside an Archive.
java.lang.String	toString() Show file name for archive, if zip show if it is sub archive.

Methods inherited from class java.lang.Object

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

Method Detail

toString

public java.lang.String toString()

Show file name for archive, if zip show if it is sub archive.

Overrides:

toString in class java.lang.Object

Returns:

A string with result.

getBundleGeneration

public BundleGeneration getBundleGeneration()

Get bundle id for this archive.

Specified by:

getBundleGeneration in interface FileArchive

getSubId

public int getSubId()

Get sub-archive id for this archive.

Specified by:

getSubId in interface FileArchive

getClassBytes

public byte[] getClassBytes(java.lang.String classFile)
                     throws java.io.IOException

Get a byte array containg the contents of named class file from the archive.

Specified by:

getClassBytes in interface FileArchive

Parameters:

Class - File to get.

Returns:

Byte array with contents of class file or null if file doesn't exist.

Throws:

java.io.IOException - if failed to read jar entry.

getBundleResourceStream

public BundleResourceStream getBundleResourceStream(java.lang.String component)

Get a BundleResourceStream to named entry inside an Archive.

Specified by:

getBundleResourceStream in interface FileArchive

Parameters:

component - Entry to get reference to.

Returns:

BundleResourceStream to entry or null if it doesn't exist.

findResourcesPath

public java.util.Enumeration<java.lang.String> findResourcesPath(java.lang.String path)

Description copied from interface: FileArchive

Returns an Enumeration of all the paths (String objects) to entries within the bundle whose longest sub-path matches the supplied path argument.

Specified by:

findResourcesPath in interface FileArchive

Returns:

listDir

public java.util.Set<java.lang.String> listDir(java.lang.String path)

Get a BundleResourceStream to named entry inside an Archive.

Specified by:

listDir in interface FileArchive

Parameters:

component - Entry to get reference to.

Returns:

BundleResourceStream to entry or null if it doesn't exist.

exists

public boolean exists(java.lang.String path,
             boolean onlyDirs)

Get a BundleResourceStream to named entry inside an Archive.

Specified by:

exists in interface FileArchive

Parameters:

component - Entry to get reference to.

Returns:

BundleResourceStream to entry or null if it doesn't exist.

checkNativeLibrary

public java.lang.String checkNativeLibrary(java.lang.String path)

Check for native library in archive.

Specified by:

checkNativeLibrary in interface FileArchive

Parameters:

path - Name of native code file to get.

Returns:

If native library exist return libname, otherwise null.

getNativeLibrary

public java.lang.String getNativeLibrary(java.lang.String libNameKey)

Get native code library filename.

Specified by:

getNativeLibrary in interface FileArchive

Parameters:

libNameKey - Key for native lib to get.

Returns:

A string with the path to the native library.