se.kth.cid.metadata
Class MetaDataUtils

java.lang.Object
  |
  +--se.kth.cid.metadata.MetaDataUtils

public class MetaDataUtils

extends Object

This class contains utility functions for use with MetaData.

Field Summary

static Locale

EMPTY_LOCALE

Method Summary

static void	addObject(MetaData md, String tag, Object obj)
static boolean	containsString(MetaData.LangStringType lstr, String str)
static MIMEType[]	getDigitalFormats(MetaData.LangStringType format) Returns a list of MIMETypes contained in a LangStringType, such as the one in technical.format.
static String	getLanguageString(Locale l) Returns an IMS meta-data conforming string representing the given language.
static Locale	getLocale(String language) Converts an IMS meta-data language specification into a Java Locale.
static MetaData.LangString	getLocalizedString(String defaultLang, MetaData.LangStringType langstring) Returns the string in the LangStringType most matching the current default Locale.
static boolean	isClassifiedAs(MetaData.Classification[] classific, String purpose, String source, String[] entries)
static void	removeObject(MetaData md, String tag, Object obj)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_LOCALE

public static final Locale EMPTY_LOCALE

Method Detail

getLanguageString

public static String getLanguageString(Locale l)

Returns an IMS meta-data conforming string representing the given language.

Parameters:

l - the Locale to convert.

Returns:

a IMS meta-data conforming string representing the given locale.

getLocale

public static Locale getLocale(String language)

Converts an IMS meta-data language specification into a Java Locale. Please note that getLanguageString(getLocale(str)) is not always the identity mapping, when the string given does not conform to the specification. Valid example: en-US -> en-US, Invalid example: en_US -> en_us.

Parameters:

language - the string to convert.

Returns:

a Locale object representing the language.

getLocalizedString

public static MetaData.LangString getLocalizedString(String defaultLang,
                                                     MetaData.LangStringType langstring)

Returns the string in the LangStringType most matching the current default Locale. This takes into account both country codes, if applicable, and the default metadata language (which is "en" if not given). If no good match is found, the first string is returned.

Parameters:

defaultLang - the default language, as given by MetaData.get_metametadata_language().

langstring - the LangStringType to search. If null, the empty string is returned.

Returns:

a string in the most matching language, or "".

getDigitalFormats

public static MIMEType[] getDigitalFormats(MetaData.LangStringType format)

Returns a list of MIMETypes contained in a LangStringType, such as the one in technical.format. Ignores non-parsable MIME types.

Parameters:

format - the element to search.

Returns:

the parsed MIMETypes. Never null, but possibly empty.

addObject

public static void addObject(MetaData md,
                             String tag,
                             Object obj)

removeObject

public static void removeObject(MetaData md,
                                String tag,
                                Object obj)

containsString

public static boolean containsString(MetaData.LangStringType lstr,
                                     String str)

isClassifiedAs

public static boolean isClassifiedAs(MetaData.Classification[] classific,
                                     String purpose,
                                     String source,
                                     String[] entries)