Class MPackageReader

java.lang.Object

com.io7m.montarre.io.internal.MPackageReader

All Implemented Interfaces:

MPackageReaderType, AutoCloseable

public final class MPackageReader
extends Object
implements MPackageReaderType

A package reader.

Nested Class Summary

Nested classes/interfaces inherited from interface MPackageReaderType

MPackageReaderType.PlatformDependentModulePolicy

Constructor Summary

Constructors

Constructor	Description
MPackageReader(Path inFile, MPackageDeclarationParserFactoryType inParsers)	A package reader.

Method Summary

Modifier and Type	Method	Description
void	checkHash(MFileName fileName)	Check the digest of the given file, raising an exception if it does not match what is in the package declaration.
void	close()
static byte[]	extractManifest(Path file)	Extract a manifest from the file.
MPackageDeclaration	packageDeclaration()
InputStream	readFile(MFileName fileName)
void	start()	Open the package declaration and parse it.
void	unpackInto(Path output, Function<MPlatformDependentModule, MPackageReaderType.PlatformDependentModulePolicy> filterPlatform)	Unpack all files into the given output directory.

Methods inherited from class Object

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

Methods inherited from interface MPackageReaderType

unpackInto

Constructor Details

MPackageReader

public MPackageReader(Path inFile,
 MPackageDeclarationParserFactoryType inParsers)
               throws IOException,
com.io7m.entomos.core.EoException

A package reader.

Parameters:

inFile - The file

inParsers - The parsers

Throws:

IOException

com.io7m.entomos.core.EoException

Method Details

extractManifest

public static byte[] extractManifest(Path file)
                              throws MException

Extract a manifest from the file.

Parameters:

file - The file

Returns:

The manifest bytes

Throws:

MException - On errors

start

public void start()
           throws MException

Open the package declaration and parse it.

Throws:

MException - On errors

packageDeclaration

public MPackageDeclaration packageDeclaration()

Specified by:

packageDeclaration in interface MPackageReaderType

Returns:

The package declaration

close

public void close()
           throws MException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface MPackageReaderType

Throws:

MException

readFile

public InputStream readFile(MFileName fileName)
                     throws MException

Specified by:

readFile in interface MPackageReaderType

Parameters:

fileName - The file

Returns:

A stream for the given file

Throws:

MException - On errors

checkHash

public void checkHash(MFileName fileName)
               throws MException

Description copied from interface: MPackageReaderType

Check the digest of the given file, raising an exception if it does not match what is in the package declaration.

Specified by:

checkHash in interface MPackageReaderType

Parameters:

fileName - The file

Throws:

MException - On errors

unpackInto

public void unpackInto(Path output,
 Function<MPlatformDependentModule, MPackageReaderType.PlatformDependentModulePolicy> filterPlatform)
                throws MException

Description copied from interface: MPackageReaderType

Unpack all files into the given output directory.

Specified by:

unpackInto in interface MPackageReaderType

Parameters:

output - The output directory

filterPlatform - The filter for platform-dependent modules

Throws:

MException - On errors