org.apache.maven.index.reader

Class Utils

java.lang.Object

org.apache.maven.index.reader.Utils

public final class Utils
extends Object

Reusable code snippets and constants.

Since:

5.1.2

Field Summary

Fields

Modifier and Type	Field and Description
static String	FIELD_SEPARATOR
static Pattern	FS_PATTERN
static DateFormat	INDEX_DATE_FORMAT
static String	INDEX_FILE_PREFIX
static String	INFO
static String	NOT_AVAILABLE
static String	UINFO

Method Summary

Modifier and Type	Method and Description
static Record	allGroups(Collection<String> allGroups) Creates a record of type Record.Type.ALL_GROUPS.
static Record	descriptor(String repoId) Creates a record of type Record.Type.DESCRIPTOR.
static Properties	loadProperties(InputStream inputStream) Creates and loads Properties from provided InputStream and closes the stream.
static Properties	loadProperties(ResourceHandler.Resource resource) Creates and loads Properties from provided ResourceHandler.Resource if exists, and closes the resource.
static String	nvl(String v) Helper to translate null into "NA" (not available) value.
static String	renvl(String v) Helper to translate the "NA" (not available) input into null value.
static String	rootGroup(String groupId) Returns the "root group" of given groupId.
static Record	rootGroups(Collection<String> rootGroups) Creates a record of type Record.Type.ROOT_GROUPS.
static void	storeProperties(OutputStream outputStream, Properties properties) Saves Properties to provided OutputStream and closes the stream.
static void	storeProperties(WritableResourceHandler.WritableResource writableResource, Properties properties) Saves Properties to provided WritableResourceHandler.WritableResource and closes the resource.

Methods inherited from class java.lang.Object

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

Field Detail

INDEX_FILE_PREFIX

public static final String INDEX_FILE_PREFIX

See Also:

Constant Field Values

INDEX_DATE_FORMAT

public static final DateFormat INDEX_DATE_FORMAT

FIELD_SEPARATOR

public static final String FIELD_SEPARATOR

See Also:

Constant Field Values

NOT_AVAILABLE

public static final String NOT_AVAILABLE

See Also:

Constant Field Values

UINFO

public static final String UINFO

See Also:

Constant Field Values

INFO

public static final String INFO

See Also:

Constant Field Values

FS_PATTERN

public static final Pattern FS_PATTERN

Method Detail

loadProperties

public static Properties loadProperties(InputStream inputStream)
                                 throws IOException

Creates and loads Properties from provided InputStream and closes the stream.

Throws:

IOException

loadProperties

public static Properties loadProperties(ResourceHandler.Resource resource)
                                 throws IOException

Creates and loads Properties from provided ResourceHandler.Resource if exists, and closes the resource. If not exists, returns null.

Throws:

IOException

storeProperties

public static void storeProperties(OutputStream outputStream,
                                   Properties properties)
                            throws IOException

Saves Properties to provided OutputStream and closes the stream.

Throws:

IOException

storeProperties

public static void storeProperties(WritableResourceHandler.WritableResource writableResource,
                                   Properties properties)
                            throws IOException

Saves Properties to provided WritableResourceHandler.WritableResource and closes the resource.

Throws:

IOException

descriptor

public static Record descriptor(String repoId)

Creates a record of type Record.Type.DESCRIPTOR.

allGroups

public static Record allGroups(Collection<String> allGroups)

Creates a record of type Record.Type.ALL_GROUPS.

rootGroups

public static Record rootGroups(Collection<String> rootGroups)

Creates a record of type Record.Type.ROOT_GROUPS.

renvl

public static String renvl(String v)

Helper to translate the "NA" (not available) input into null value.

nvl

public static String nvl(String v)

Helper to translate null into "NA" (not available) value.

rootGroup

public static String rootGroup(String groupId)

Returns the "root group" of given groupId.