org.apache.ambari.server.stack

Class StackDirectory

java.lang.Object

org.apache.ambari.server.stack.StackDefinitionDirectory

org.apache.ambari.server.stack.StackDirectory

public class StackDirectory
extends StackDefinitionDirectory

Encapsulates IO operations on a stack definition stack directory.

Field Summary

Fields

Modifier and Type	Field and Description
static FilenameFilter	FILENAME_FILTER
static String	KERBEROS_DESCRIPTOR_PRECONFIGURE_FILE_NAME The filename for a Kerberos descriptor preconfigure file at either the stack or service level
static String	LIB_FOLDER_NAME Allows stacks to provide their own JARs, such as those which implement classes in the SPI.
static String	RCO_FILE_NAME
static String	SERVICE_ADVISOR_FILE_NAME
static String	SERVICE_ALERT_FILE_NAME
static String	SERVICE_CONFIG_FILE_NAME_POSTFIX
static String	SERVICE_CONFIG_FOLDER_NAME
static String	SERVICE_METRIC_FILE_NAME
static String	SERVICE_PROPERTIES_FOLDER_NAME
static String	SERVICE_QUICKLINKS_CONFIGURATIONS_FOLDER_NAME
static String	SERVICE_THEME_FILE_NAME Filename for theme file at service layer
static String	SERVICE_THEMES_FOLDER_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
StackDirectory(String directory) Constructor.

Method Summary

Modifier and Type	Method and Description
ConfigUpgradePack	getConfigUpgradePack()
String	getKerberosDescriptorPreconfigureFilePath() Obtain the path to the (stack-level) Kerberos descriptor pre-configuration file
URLClassLoader	getLibraryClassLoader() Gets the ClassLoader that can be used to load classes found in JARs in the stack's library folder.
String	getLibraryPath() Gets the fully qualified path to the stack's library directory.
StackMetainfoXml	getMetaInfoFile() Obtain the object representation of the stack metainfo.xml file.
String	getRcoFilePath() Obtain the rco file path.
String	getRepoDir() Obtain the repository directory path.
RepositoryXml	getRepoFile() Obtain the repository file object representation.
StackRoleCommandOrder	getRoleCommandOrder() Obtain the object representation of the stack role_command_order.json file
Collection<ServiceDirectory>	getServiceDirectories() Obtain a collection of all service directories.
String	getStackDirName() Obtain the stack directory name.
Map<String,UpgradePack>	getUpgradePacks() Obtain a map of all upgrade packs.
String	getUpgradesDir() Obtain the upgrades directory path.

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

SERVICE_CONFIG_FOLDER_NAME

public static final String SERVICE_CONFIG_FOLDER_NAME

See Also:

Constant Field Values

SERVICE_PROPERTIES_FOLDER_NAME

public static final String SERVICE_PROPERTIES_FOLDER_NAME

See Also:

Constant Field Values

SERVICE_THEMES_FOLDER_NAME

public static final String SERVICE_THEMES_FOLDER_NAME

See Also:

Constant Field Values

SERVICE_QUICKLINKS_CONFIGURATIONS_FOLDER_NAME

public static final String SERVICE_QUICKLINKS_CONFIGURATIONS_FOLDER_NAME

See Also:

Constant Field Values

SERVICE_CONFIG_FILE_NAME_POSTFIX

public static final String SERVICE_CONFIG_FILE_NAME_POSTFIX

See Also:

Constant Field Values

RCO_FILE_NAME

public static final String RCO_FILE_NAME

See Also:

Constant Field Values

SERVICE_METRIC_FILE_NAME

public static final String SERVICE_METRIC_FILE_NAME

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Constant Field Values

SERVICE_ALERT_FILE_NAME

public static final String SERVICE_ALERT_FILE_NAME

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Constant Field Values

SERVICE_ADVISOR_FILE_NAME

public static final String SERVICE_ADVISOR_FILE_NAME

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Constant Field Values

LIB_FOLDER_NAME

public static final String LIB_FOLDER_NAME

Allows stacks to provide their own JARs, such as those which implement classes in the SPI.

See Also:

Constant Field Values

KERBEROS_DESCRIPTOR_PRECONFIGURE_FILE_NAME

public static final String KERBEROS_DESCRIPTOR_PRECONFIGURE_FILE_NAME

The filename for a Kerberos descriptor preconfigure file at either the stack or service level

See Also:

Constant Field Values

SERVICE_THEME_FILE_NAME

public static final String SERVICE_THEME_FILE_NAME

Filename for theme file at service layer

See Also:

Constant Field Values

FILENAME_FILTER

public static final FilenameFilter FILENAME_FILTER

Constructor Detail

StackDirectory

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

Constructor.

Parameters:

directory - stack directory

Throws:

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

Method Detail

getStackDirName

public String getStackDirName()

Obtain the stack directory name.

Returns:

stack directory name

getUpgradesDir

public String getUpgradesDir()

Obtain the upgrades directory path.

Returns:

upgrades directory path

getRcoFilePath

public String getRcoFilePath()

Obtain the rco file path.

Returns:

rco file path

getLibraryPath

public String getLibraryPath()

Gets the fully qualified path to the stack's library directory.

Returns:

the library directory.

getKerberosDescriptorPreconfigureFilePath

public String getKerberosDescriptorPreconfigureFilePath()

Obtain the path to the (stack-level) Kerberos descriptor pre-configuration file

Returns:

the path to the (stack-level) Kerberos descriptor pre-configuration file

getRepoDir

public String getRepoDir()

Obtain the repository directory path.

Returns:

repository directory path

getRepoFile

public RepositoryXml getRepoFile()

Obtain the repository file object representation.

Returns:

repository file object representation

getMetaInfoFile

public StackMetainfoXml getMetaInfoFile()

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

Returns:

object representation of the stack metainfo.xml file

getServiceDirectories

public Collection<ServiceDirectory> getServiceDirectories()

Obtain a collection of all service directories.

Returns:

collection of all service directories

getUpgradePacks

public Map<String,UpgradePack> getUpgradePacks()

Obtain a map of all upgrade packs.

Returns:

map of upgrade pack name to upgrade pack or null if no packs available

getConfigUpgradePack

public ConfigUpgradePack getConfigUpgradePack()

Returns:

Config delta from prev stack or null if no config upgrade patches available

getRoleCommandOrder

public StackRoleCommandOrder getRoleCommandOrder()

Obtain the object representation of the stack role_command_order.json file

Returns:

object representation of the stack role_command_order.json file

getLibraryClassLoader

@Nullable
public URLClassLoader getLibraryClassLoader()

Gets the ClassLoader that can be used to load classes found in JARs in the stack's library folder.

Returns:

the class loader for 3rd party JARs supplied by the stack or null if there are no libraries for this stack.