Package com.google.gerrit.server.plugins

Interface PluginContentScanner

All Known Implementing Classes:

AbstractPreloadedPluginScanner, JarScanner

public interface PluginContentScanner

Scans the plugin returning classes and resources.

Gerrit uses the scanner to automatically discover the classes and resources exported by the plugin for auto discovery of exported SSH commands, Servlets and listeners.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	PluginContentScanner.ExtensionMetaData	Plugin class extension meta-data

Field Summary

Fields

Modifier and Type	Field	Description
static final PluginContentScanner	EMPTY	Scanner without resources.

Method Summary

Modifier and Type	Method	Description
Stream<PluginEntry>	entries()	Return all the resources inside a plugin
Optional<PluginEntry>	getEntry(String resourcePath)	Return the plugin resource associated to a path
InputStream	getInputStream(PluginEntry entry)	Return the InputStream of the resource entry
Manifest	getManifest()	Return the plugin meta-data manifest
Map<Class<? extends Annotation>,Iterable<PluginContentScanner.ExtensionMetaData>>	scan(String pluginName, Iterable<Class<? extends Annotation>> annotations)	Scans the plugin for declared public annotated classes

Field Details

EMPTY

static final PluginContentScanner EMPTY

Scanner without resources.

Method Details

getManifest

Manifest getManifest()
              throws IOException

Return the plugin meta-data manifest

Returns:

Manifest of the plugin or null if plugin has no meta-data

Throws:

IOException - if an I/O problem occurred whilst accessing the Manifest

scan

Map<Class<? extends Annotation>,Iterable<PluginContentScanner.ExtensionMetaData>> scan(String pluginName,
 Iterable<Class<? extends Annotation>> annotations)
                                                                                throws InvalidPluginException

Scans the plugin for declared public annotated classes

Parameters:

pluginName - the plugin name

annotations - annotations declared by the plugin classes

Returns:

map of annotations and associated plugin classes found

Throws:

InvalidPluginException - if the plugin is not valid or corrupted

getEntry

Optional<PluginEntry> getEntry(String resourcePath)
                        throws IOException

Return the plugin resource associated to a path

Parameters:

resourcePath - full path of the resource inside the plugin package

Returns:

the resource object or Optional.absent() if the resource was not found

Throws:

IOException - if there was a problem retrieving the resource

getInputStream

InputStream getInputStream(PluginEntry entry)
                    throws IOException

Return the InputStream of the resource entry

Parameters:

entry - resource entry inside the plugin package

Returns:

the resource input stream

Throws:

IOException - if there was an I/O problem accessing the resource

entries

Stream<PluginEntry> entries()

Return all the resources inside a plugin

Returns:

the enumeration of all resources found