Package de.uni_hildesheim.sse.easy.loader

Class ManifestLoader

java.lang.Object

de.uni_hildesheim.sse.easy.loader.AbstractStartupInfoLoader

de.uni_hildesheim.sse.easy.loader.ManifestLoader

All Implemented Interfaces:

ILoader

public class ManifestLoader
extends AbstractStartupInfoLoader

Experimental: Loader that identifies the available services/activators from Manifests.

Author:

Holger Eichelberger

Field Summary

Fields

Modifier and Type	Field	Description
static final String	MF_PATH	The default (relative) manifest path: "META-INF/MANIFEST.MF".

Constructor Summary

Constructors

Constructor	Description
ManifestLoader()	Creates a manifest loader with initially non-verbose output.
ManifestLoader(boolean verbose)	Creates a manifest loader.
ManifestLoader(boolean verbose, ClassLoader loader)	Creates a manifest loader.
ManifestLoader(ClassLoader loader)	Creates a manifest loader with initially non-verbose output.

Method Summary

Modifier and Type	Method	Description
static StartupInfo	loadManifest(URL url, DocumentBuilder builder, boolean verbose)	Load a given manifest.
static List<StartupInfo>	loadManifests(boolean verbose, ClassLoader loader)	Loads the available manifests.
void	setLoader(ClassLoader loader)	Sets the class loader for loading EASy bundles.

Methods inherited from class de.uni_hildesheim.sse.easy.loader.AbstractStartupInfoLoader

getLoader, isVerbose, setStartupSequence, setVerbose, shutdown, startup

Methods inherited from class java.lang.Object

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

Field Details

MF_PATH

public static final String MF_PATH

The default (relative) manifest path: "META-INF/MANIFEST.MF".

See Also:

• Constant Field Values

Constructor Details

ManifestLoader

public ManifestLoader()
               throws IOException

Creates a manifest loader with initially non-verbose output.

Throws:

IOException - if loading fails

ManifestLoader

public ManifestLoader(ClassLoader loader)
               throws IOException

Creates a manifest loader with initially non-verbose output.

Parameters:

loader - the resource/bundle loader, may be null for default (this class/this thread context)

Throws:

IOException - if loading fails

ManifestLoader

public ManifestLoader(boolean verbose)
               throws IOException

Creates a manifest loader.

Parameters:

verbose - whether verbose output shall be produced

Throws:

IOException - if loading fails

ManifestLoader

public ManifestLoader(boolean verbose,
 ClassLoader loader)
               throws IOException

Creates a manifest loader.

Parameters:

verbose - whether verbose output shall be produced

loader - the resource/bundle loader, may be null for default (this class/this thread context)

Throws:

IOException - if loading fails

Method Details

setLoader

public void setLoader(ClassLoader loader)

Description copied from interface: ILoader

Sets the class loader for loading EASy bundles. By default, the class loader of the implementing class is used.

Specified by:

setLoader in interface ILoader

Overrides:

setLoader in class AbstractStartupInfoLoader

Parameters:

loader - the loader, ignored if null

loadManifests

public static List<StartupInfo> loadManifests(boolean verbose,
 ClassLoader loader)
                                       throws IOException

Loads the available manifests.

Parameters:

verbose - whether verbose output shall be produced

loader - the classloader to get the manifest resources from, may be null for this thread context

Returns:

information instances about the loaded services/activators

Throws:

IOException - if loading fails

loadManifest

public static StartupInfo loadManifest(URL url,
 DocumentBuilder builder,
 boolean verbose)
                                throws IOException

Load a given manifest.

Parameters:

url - the URL of the manifest

builder - a re-usable document builder

verbose - produce verbose output

Returns:

information instances about the loaded services/activators

Throws:

IOException - if loading fails