org.apache.ambari.server.stack

Class ExtensionDirectory

java.lang.Object

org.apache.ambari.server.stack.StackDefinitionDirectory

org.apache.ambari.server.stack.ExtensionDirectory

public class ExtensionDirectory
extends StackDefinitionDirectory

Encapsulates IO operations on a extension definition extension directory. An extension version is like a stack version but it contains custom services. Linking an extension version to the current stack version allows the cluster to install the custom services contained in the extension version.

Field Summary

Fields

Modifier and Type	Field and Description
static String	EXTENSIONS_FOLDER_NAME extensions directory name

Fields inherited from class org.apache.ambari.server.stack.StackDefinitionDirectory

CONFIG_UPGRADE_XML_FILENAME_PREFIX, directory, XML_FILENAME_FILTER

Constructor Summary

Constructors

Constructor and Description
ExtensionDirectory(String directory) Constructor.

Method Summary

Modifier and Type	Method and Description
String	getExtensionDirName() Obtain the extension directory name.
ExtensionMetainfoXml	getMetaInfoFile() Obtain the object representation of the extension metainfo.xml file.
Collection<ServiceDirectory>	getServiceDirectories() Obtain a collection of all service directories.

Methods inherited from class org.apache.ambari.server.stack.StackDefinitionDirectory

getAbsolutePath, getConfigurationDirectory, getDirectory, getName, getPath

Methods inherited from class java.lang.Object

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

Field Detail

EXTENSIONS_FOLDER_NAME

public static final String EXTENSIONS_FOLDER_NAME

extensions directory name

See Also:

Constant Field Values

Constructor Detail

ExtensionDirectory

public ExtensionDirectory(String directory)
                   throws org.apache.ambari.server.AmbariException

Constructor.

Parameters:

directory - extension directory

Throws:

org.apache.ambari.server.AmbariException - if unable to parse the stack directory

Method Detail

getExtensionDirName

public String getExtensionDirName()

Obtain the extension directory name.

Returns:

extension directory name

getMetaInfoFile

public ExtensionMetainfoXml getMetaInfoFile()

Obtain the object representation of the extension metainfo.xml file.

Returns:

object representation of the extension metainfo.xml file

getServiceDirectories

public Collection<ServiceDirectory> getServiceDirectories()

Obtain a collection of all service directories.

Returns:

collection of all service directories