984 lines
26 KiB
C++
984 lines
26 KiB
C++
// Copyright (C) 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/**
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*******************************************************************************
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* Copyright (C) 2001-2014, International Business Machines Corporation.
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* All Rights Reserved.
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*******************************************************************************
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_SERVICE
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#include "serv.h"
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#include "umutex.h"
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#undef SERVICE_REFCOUNT
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// in case we use the refcount stuff
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U_NAMESPACE_BEGIN
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/*
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******************************************************************
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*/
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const UChar ICUServiceKey::PREFIX_DELIMITER = 0x002F; /* '/' */
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ICUServiceKey::ICUServiceKey(const UnicodeString& id)
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: _id(id) {
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}
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ICUServiceKey::~ICUServiceKey()
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{
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}
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const UnicodeString&
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ICUServiceKey::getID() const
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{
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return _id;
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}
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UnicodeString&
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ICUServiceKey::canonicalID(UnicodeString& result) const
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{
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return result.append(_id);
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}
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UnicodeString&
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ICUServiceKey::currentID(UnicodeString& result) const
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{
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return canonicalID(result);
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}
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UnicodeString&
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ICUServiceKey::currentDescriptor(UnicodeString& result) const
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{
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prefix(result);
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result.append(PREFIX_DELIMITER);
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return currentID(result);
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}
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UBool
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ICUServiceKey::fallback()
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{
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return FALSE;
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}
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UBool
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ICUServiceKey::isFallbackOf(const UnicodeString& id) const
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{
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return id == _id;
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}
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UnicodeString&
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ICUServiceKey::prefix(UnicodeString& result) const
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{
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return result;
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}
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UnicodeString&
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ICUServiceKey::parsePrefix(UnicodeString& result)
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{
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int32_t n = result.indexOf(PREFIX_DELIMITER);
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if (n < 0) {
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n = 0;
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}
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result.remove(n);
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return result;
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}
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UnicodeString&
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ICUServiceKey::parseSuffix(UnicodeString& result)
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{
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int32_t n = result.indexOf(PREFIX_DELIMITER);
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if (n >= 0) {
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result.remove(0, n+1);
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}
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return result;
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}
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#ifdef SERVICE_DEBUG
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UnicodeString&
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ICUServiceKey::debug(UnicodeString& result) const
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{
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debugClass(result);
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result.append((UnicodeString)" id: ");
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result.append(_id);
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return result;
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}
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UnicodeString&
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ICUServiceKey::debugClass(UnicodeString& result) const
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{
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return result.append((UnicodeString)"ICUServiceKey");
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}
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#endif
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UOBJECT_DEFINE_RTTI_IMPLEMENTATION(ICUServiceKey)
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/*
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******************************************************************
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*/
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ICUServiceFactory::~ICUServiceFactory() {}
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SimpleFactory::SimpleFactory(UObject* instanceToAdopt, const UnicodeString& id, UBool visible)
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: _instance(instanceToAdopt), _id(id), _visible(visible)
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{
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}
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SimpleFactory::~SimpleFactory()
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{
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delete _instance;
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}
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UObject*
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SimpleFactory::create(const ICUServiceKey& key, const ICUService* service, UErrorCode& status) const
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{
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if (U_SUCCESS(status)) {
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UnicodeString temp;
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if (_id == key.currentID(temp)) {
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return service->cloneInstance(_instance);
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}
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}
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return NULL;
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}
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void
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SimpleFactory::updateVisibleIDs(Hashtable& result, UErrorCode& status) const
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{
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if (_visible) {
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result.put(_id, (void*)this, status); // cast away const
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} else {
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result.remove(_id);
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}
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}
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UnicodeString&
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SimpleFactory::getDisplayName(const UnicodeString& id, const Locale& /* locale */, UnicodeString& result) const
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{
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if (_visible && _id == id) {
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result = _id;
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} else {
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result.setToBogus();
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}
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return result;
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}
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#ifdef SERVICE_DEBUG
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UnicodeString&
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SimpleFactory::debug(UnicodeString& toAppendTo) const
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{
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debugClass(toAppendTo);
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toAppendTo.append((UnicodeString)" id: ");
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toAppendTo.append(_id);
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toAppendTo.append((UnicodeString)", visible: ");
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toAppendTo.append(_visible ? (UnicodeString)"T" : (UnicodeString)"F");
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return toAppendTo;
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}
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UnicodeString&
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SimpleFactory::debugClass(UnicodeString& toAppendTo) const
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{
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return toAppendTo.append((UnicodeString)"SimpleFactory");
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}
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#endif
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UOBJECT_DEFINE_RTTI_IMPLEMENTATION(SimpleFactory)
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/*
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******************************************************************
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*/
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ServiceListener::~ServiceListener() {}
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UOBJECT_DEFINE_RTTI_IMPLEMENTATION(ServiceListener)
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/*
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******************************************************************
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*/
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// Record the actual id for this service in the cache, so we can return it
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// even if we succeed later with a different id.
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class CacheEntry : public UMemory {
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private:
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int32_t refcount;
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public:
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UnicodeString actualDescriptor;
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UObject* service;
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/**
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* Releases a reference to the shared resource.
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*/
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~CacheEntry() {
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delete service;
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}
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CacheEntry(const UnicodeString& _actualDescriptor, UObject* _service)
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: refcount(1), actualDescriptor(_actualDescriptor), service(_service) {
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}
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/**
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* Instantiation creates an initial reference, so don't call this
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* unless you're creating a new pointer to this. Management of
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* that pointer will have to know how to deal with refcounts.
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* Return true if the resource has not already been released.
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*/
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CacheEntry* ref() {
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++refcount;
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return this;
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}
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/**
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* Destructions removes a reference, so don't call this unless
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* you're removing pointer to this somewhere. Management of that
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* pointer will have to know how to deal with refcounts. Once
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* the refcount drops to zero, the resource is released. Return
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* false if the resouce has been released.
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*/
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CacheEntry* unref() {
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if ((--refcount) == 0) {
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delete this;
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return NULL;
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}
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return this;
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}
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/**
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* Return TRUE if there is at least one reference to this and the
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* resource has not been released.
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*/
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UBool isShared() const {
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return refcount > 1;
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}
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};
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// UObjectDeleter for serviceCache
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U_CDECL_BEGIN
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static void U_CALLCONV
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cacheDeleter(void* obj) {
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U_NAMESPACE_USE ((CacheEntry*)obj)->unref();
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}
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/**
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* Deleter for UObjects
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*/
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static void U_CALLCONV
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deleteUObject(void *obj) {
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U_NAMESPACE_USE delete (UObject*) obj;
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}
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U_CDECL_END
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/*
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******************************************************************
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*/
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class DNCache : public UMemory {
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public:
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Hashtable cache;
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const Locale locale;
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DNCache(const Locale& _locale)
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: cache(), locale(_locale)
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{
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// cache.setKeyDeleter(uprv_deleteUObject);
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}
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};
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/*
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******************************************************************
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*/
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StringPair*
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StringPair::create(const UnicodeString& displayName,
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const UnicodeString& id,
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UErrorCode& status)
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{
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if (U_SUCCESS(status)) {
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StringPair* sp = new StringPair(displayName, id);
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if (sp == NULL || sp->isBogus()) {
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status = U_MEMORY_ALLOCATION_ERROR;
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delete sp;
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return NULL;
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}
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return sp;
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}
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return NULL;
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}
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UBool
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StringPair::isBogus() const {
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return displayName.isBogus() || id.isBogus();
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}
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StringPair::StringPair(const UnicodeString& _displayName,
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const UnicodeString& _id)
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: displayName(_displayName)
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, id(_id)
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{
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}
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U_CDECL_BEGIN
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static void U_CALLCONV
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userv_deleteStringPair(void *obj) {
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U_NAMESPACE_USE delete (StringPair*) obj;
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}
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U_CDECL_END
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/*
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******************************************************************
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*/
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static UMutex lock = U_MUTEX_INITIALIZER;
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ICUService::ICUService()
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: name()
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, timestamp(0)
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, factories(NULL)
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, serviceCache(NULL)
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, idCache(NULL)
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, dnCache(NULL)
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{
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}
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ICUService::ICUService(const UnicodeString& newName)
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: name(newName)
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, timestamp(0)
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, factories(NULL)
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, serviceCache(NULL)
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, idCache(NULL)
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, dnCache(NULL)
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{
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}
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ICUService::~ICUService()
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{
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{
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Mutex mutex(&lock);
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clearCaches();
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delete factories;
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factories = NULL;
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}
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}
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UObject*
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ICUService::get(const UnicodeString& descriptor, UErrorCode& status) const
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{
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return get(descriptor, NULL, status);
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}
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UObject*
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ICUService::get(const UnicodeString& descriptor, UnicodeString* actualReturn, UErrorCode& status) const
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{
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UObject* result = NULL;
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ICUServiceKey* key = createKey(&descriptor, status);
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if (key) {
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result = getKey(*key, actualReturn, status);
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delete key;
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}
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return result;
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}
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UObject*
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ICUService::getKey(ICUServiceKey& key, UErrorCode& status) const
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{
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return getKey(key, NULL, status);
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}
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// this is a vector that subclasses of ICUService can override to further customize the result object
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// before returning it. All other public get functions should call this one.
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UObject*
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ICUService::getKey(ICUServiceKey& key, UnicodeString* actualReturn, UErrorCode& status) const
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{
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return getKey(key, actualReturn, NULL, status);
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}
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// make it possible to call reentrantly on systems that don't have reentrant mutexes.
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// we can use this simple approach since we know the situation where we're calling
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// reentrantly even without knowing the thread.
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class XMutex : public UMemory {
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public:
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inline XMutex(UMutex *mutex, UBool reentering)
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: fMutex(mutex)
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, fActive(!reentering)
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{
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if (fActive) umtx_lock(fMutex);
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}
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inline ~XMutex() {
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if (fActive) umtx_unlock(fMutex);
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}
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private:
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UMutex *fMutex;
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UBool fActive;
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};
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struct UVectorDeleter {
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UVector* _obj;
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UVectorDeleter() : _obj(NULL) {}
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~UVectorDeleter() { delete _obj; }
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};
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// called only by factories, treat as private
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UObject*
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ICUService::getKey(ICUServiceKey& key, UnicodeString* actualReturn, const ICUServiceFactory* factory, UErrorCode& status) const
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{
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if (U_FAILURE(status)) {
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return NULL;
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}
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if (isDefault()) {
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return handleDefault(key, actualReturn, status);
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}
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ICUService* ncthis = (ICUService*)this; // cast away semantic const
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CacheEntry* result = NULL;
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{
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// The factory list can't be modified until we're done,
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// otherwise we might update the cache with an invalid result.
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// The cache has to stay in synch with the factory list.
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// ICU doesn't have monitors so we can't use rw locks, so
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// we single-thread everything using this service, for now.
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// if factory is not null, we're calling from within the mutex,
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// and since some unix machines don't have reentrant mutexes we
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// need to make sure not to try to lock it again.
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XMutex mutex(&lock, factory != NULL);
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if (serviceCache == NULL) {
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ncthis->serviceCache = new Hashtable(status);
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if (ncthis->serviceCache == NULL) {
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return NULL;
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}
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if (U_FAILURE(status)) {
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delete serviceCache;
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return NULL;
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}
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serviceCache->setValueDeleter(cacheDeleter);
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}
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UnicodeString currentDescriptor;
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UVectorDeleter cacheDescriptorList;
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UBool putInCache = FALSE;
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int32_t startIndex = 0;
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int32_t limit = factories->size();
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UBool cacheResult = TRUE;
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if (factory != NULL) {
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for (int32_t i = 0; i < limit; ++i) {
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if (factory == (const ICUServiceFactory*)factories->elementAt(i)) {
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startIndex = i + 1;
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break;
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}
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}
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if (startIndex == 0) {
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// throw new InternalError("Factory " + factory + "not registered with service: " + this);
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status = U_ILLEGAL_ARGUMENT_ERROR;
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return NULL;
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}
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cacheResult = FALSE;
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}
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do {
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currentDescriptor.remove();
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key.currentDescriptor(currentDescriptor);
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result = (CacheEntry*)serviceCache->get(currentDescriptor);
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if (result != NULL) {
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break;
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}
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// first test of cache failed, so we'll have to update
|
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// the cache if we eventually succeed-- that is, if we're
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// going to update the cache at all.
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putInCache = TRUE;
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int32_t index = startIndex;
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while (index < limit) {
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ICUServiceFactory* f = (ICUServiceFactory*)factories->elementAt(index++);
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UObject* service = f->create(key, this, status);
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if (U_FAILURE(status)) {
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delete service;
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return NULL;
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}
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if (service != NULL) {
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result = new CacheEntry(currentDescriptor, service);
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if (result == NULL) {
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delete service;
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status = U_MEMORY_ALLOCATION_ERROR;
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return NULL;
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}
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|
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goto outerEnd;
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}
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}
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|
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// prepare to load the cache with all additional ids that
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// will resolve to result, assuming we'll succeed. We
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// don't want to keep querying on an id that's going to
|
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// fallback to the one that succeeded, we want to hit the
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// cache the first time next goaround.
|
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if (cacheDescriptorList._obj == NULL) {
|
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cacheDescriptorList._obj = new UVector(uprv_deleteUObject, NULL, 5, status);
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if (U_FAILURE(status)) {
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return NULL;
|
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}
|
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}
|
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UnicodeString* idToCache = new UnicodeString(currentDescriptor);
|
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if (idToCache == NULL || idToCache->isBogus()) {
|
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status = U_MEMORY_ALLOCATION_ERROR;
|
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return NULL;
|
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}
|
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|
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cacheDescriptorList._obj->addElement(idToCache, status);
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if (U_FAILURE(status)) {
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return NULL;
|
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}
|
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} while (key.fallback());
|
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outerEnd:
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|
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if (result != NULL) {
|
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if (putInCache && cacheResult) {
|
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serviceCache->put(result->actualDescriptor, result, status);
|
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if (U_FAILURE(status)) {
|
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delete result;
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return NULL;
|
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}
|
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|
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if (cacheDescriptorList._obj != NULL) {
|
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for (int32_t i = cacheDescriptorList._obj->size(); --i >= 0;) {
|
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UnicodeString* desc = (UnicodeString*)cacheDescriptorList._obj->elementAt(i);
|
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serviceCache->put(*desc, result, status);
|
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if (U_FAILURE(status)) {
|
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delete result;
|
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return NULL;
|
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}
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|
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result->ref();
|
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cacheDescriptorList._obj->removeElementAt(i);
|
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}
|
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}
|
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}
|
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|
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if (actualReturn != NULL) {
|
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// strip null prefix
|
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if (result->actualDescriptor.indexOf((UChar)0x2f) == 0) { // U+002f=slash (/)
|
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actualReturn->remove();
|
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actualReturn->append(result->actualDescriptor,
|
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1,
|
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result->actualDescriptor.length() - 1);
|
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} else {
|
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*actualReturn = result->actualDescriptor;
|
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}
|
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|
|
if (actualReturn->isBogus()) {
|
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status = U_MEMORY_ALLOCATION_ERROR;
|
|
delete result;
|
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return NULL;
|
|
}
|
|
}
|
|
|
|
UObject* service = cloneInstance(result->service);
|
|
if (putInCache && !cacheResult) {
|
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delete result;
|
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}
|
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return service;
|
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}
|
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}
|
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|
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return handleDefault(key, actualReturn, status);
|
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}
|
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|
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UObject*
|
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ICUService::handleDefault(const ICUServiceKey& /* key */, UnicodeString* /* actualIDReturn */, UErrorCode& /* status */) const
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
UVector&
|
|
ICUService::getVisibleIDs(UVector& result, UErrorCode& status) const {
|
|
return getVisibleIDs(result, NULL, status);
|
|
}
|
|
|
|
UVector&
|
|
ICUService::getVisibleIDs(UVector& result, const UnicodeString* matchID, UErrorCode& status) const
|
|
{
|
|
result.removeAllElements();
|
|
|
|
if (U_FAILURE(status)) {
|
|
return result;
|
|
}
|
|
|
|
{
|
|
Mutex mutex(&lock);
|
|
const Hashtable* map = getVisibleIDMap(status);
|
|
if (map != NULL) {
|
|
ICUServiceKey* fallbackKey = createKey(matchID, status);
|
|
|
|
for (int32_t pos = UHASH_FIRST;;) {
|
|
const UHashElement* e = map->nextElement(pos);
|
|
if (e == NULL) {
|
|
break;
|
|
}
|
|
|
|
const UnicodeString* id = (const UnicodeString*)e->key.pointer;
|
|
if (fallbackKey != NULL) {
|
|
if (!fallbackKey->isFallbackOf(*id)) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
UnicodeString* idClone = new UnicodeString(*id);
|
|
if (idClone == NULL || idClone->isBogus()) {
|
|
delete idClone;
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
break;
|
|
}
|
|
result.addElement(idClone, status);
|
|
if (U_FAILURE(status)) {
|
|
delete idClone;
|
|
break;
|
|
}
|
|
}
|
|
delete fallbackKey;
|
|
}
|
|
}
|
|
if (U_FAILURE(status)) {
|
|
result.removeAllElements();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
const Hashtable*
|
|
ICUService::getVisibleIDMap(UErrorCode& status) const {
|
|
if (U_FAILURE(status)) return NULL;
|
|
|
|
// must only be called when lock is already held
|
|
|
|
ICUService* ncthis = (ICUService*)this; // cast away semantic const
|
|
if (idCache == NULL) {
|
|
ncthis->idCache = new Hashtable(status);
|
|
if (idCache == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
} else if (factories != NULL) {
|
|
for (int32_t pos = factories->size(); --pos >= 0;) {
|
|
ICUServiceFactory* f = (ICUServiceFactory*)factories->elementAt(pos);
|
|
f->updateVisibleIDs(*idCache, status);
|
|
}
|
|
if (U_FAILURE(status)) {
|
|
delete idCache;
|
|
ncthis->idCache = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
return idCache;
|
|
}
|
|
|
|
|
|
UnicodeString&
|
|
ICUService::getDisplayName(const UnicodeString& id, UnicodeString& result) const
|
|
{
|
|
return getDisplayName(id, result, Locale::getDefault());
|
|
}
|
|
|
|
UnicodeString&
|
|
ICUService::getDisplayName(const UnicodeString& id, UnicodeString& result, const Locale& locale) const
|
|
{
|
|
{
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
Mutex mutex(&lock);
|
|
const Hashtable* map = getVisibleIDMap(status);
|
|
if (map != NULL) {
|
|
ICUServiceFactory* f = (ICUServiceFactory*)map->get(id);
|
|
if (f != NULL) {
|
|
f->getDisplayName(id, locale, result);
|
|
return result;
|
|
}
|
|
|
|
// fallback
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
ICUServiceKey* fallbackKey = createKey(&id, status);
|
|
while (fallbackKey->fallback()) {
|
|
UnicodeString us;
|
|
fallbackKey->currentID(us);
|
|
f = (ICUServiceFactory*)map->get(us);
|
|
if (f != NULL) {
|
|
f->getDisplayName(id, locale, result);
|
|
delete fallbackKey;
|
|
return result;
|
|
}
|
|
}
|
|
delete fallbackKey;
|
|
}
|
|
}
|
|
result.setToBogus();
|
|
return result;
|
|
}
|
|
|
|
UVector&
|
|
ICUService::getDisplayNames(UVector& result, UErrorCode& status) const
|
|
{
|
|
return getDisplayNames(result, Locale::getDefault(), NULL, status);
|
|
}
|
|
|
|
|
|
UVector&
|
|
ICUService::getDisplayNames(UVector& result, const Locale& locale, UErrorCode& status) const
|
|
{
|
|
return getDisplayNames(result, locale, NULL, status);
|
|
}
|
|
|
|
UVector&
|
|
ICUService::getDisplayNames(UVector& result,
|
|
const Locale& locale,
|
|
const UnicodeString* matchID,
|
|
UErrorCode& status) const
|
|
{
|
|
result.removeAllElements();
|
|
result.setDeleter(userv_deleteStringPair);
|
|
if (U_SUCCESS(status)) {
|
|
ICUService* ncthis = (ICUService*)this; // cast away semantic const
|
|
Mutex mutex(&lock);
|
|
|
|
if (dnCache != NULL && dnCache->locale != locale) {
|
|
delete dnCache;
|
|
ncthis->dnCache = NULL;
|
|
}
|
|
|
|
if (dnCache == NULL) {
|
|
const Hashtable* m = getVisibleIDMap(status);
|
|
if (U_FAILURE(status)) {
|
|
return result;
|
|
}
|
|
ncthis->dnCache = new DNCache(locale);
|
|
if (dnCache == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
return result;
|
|
}
|
|
|
|
int32_t pos = UHASH_FIRST;
|
|
const UHashElement* entry = NULL;
|
|
while ((entry = m->nextElement(pos)) != NULL) {
|
|
const UnicodeString* id = (const UnicodeString*)entry->key.pointer;
|
|
ICUServiceFactory* f = (ICUServiceFactory*)entry->value.pointer;
|
|
UnicodeString dname;
|
|
f->getDisplayName(*id, locale, dname);
|
|
if (dname.isBogus()) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
} else {
|
|
dnCache->cache.put(dname, (void*)id, status); // share pointer with visibleIDMap
|
|
if (U_SUCCESS(status)) {
|
|
continue;
|
|
}
|
|
}
|
|
delete dnCache;
|
|
ncthis->dnCache = NULL;
|
|
return result;
|
|
}
|
|
}
|
|
}
|
|
|
|
ICUServiceKey* matchKey = createKey(matchID, status);
|
|
/* To ensure that all elements in the hashtable are iterated, set pos to -1.
|
|
* nextElement(pos) will skip the position at pos and begin the iteration
|
|
* at the next position, which in this case will be 0.
|
|
*/
|
|
int32_t pos = UHASH_FIRST;
|
|
const UHashElement *entry = NULL;
|
|
while ((entry = dnCache->cache.nextElement(pos)) != NULL) {
|
|
const UnicodeString* id = (const UnicodeString*)entry->value.pointer;
|
|
if (matchKey != NULL && !matchKey->isFallbackOf(*id)) {
|
|
continue;
|
|
}
|
|
const UnicodeString* dn = (const UnicodeString*)entry->key.pointer;
|
|
StringPair* sp = StringPair::create(*id, *dn, status);
|
|
result.addElement(sp, status);
|
|
if (U_FAILURE(status)) {
|
|
result.removeAllElements();
|
|
break;
|
|
}
|
|
}
|
|
delete matchKey;
|
|
|
|
return result;
|
|
}
|
|
|
|
URegistryKey
|
|
ICUService::registerInstance(UObject* objToAdopt, const UnicodeString& id, UErrorCode& status)
|
|
{
|
|
return registerInstance(objToAdopt, id, TRUE, status);
|
|
}
|
|
|
|
URegistryKey
|
|
ICUService::registerInstance(UObject* objToAdopt, const UnicodeString& id, UBool visible, UErrorCode& status)
|
|
{
|
|
ICUServiceKey* key = createKey(&id, status);
|
|
if (key != NULL) {
|
|
UnicodeString canonicalID;
|
|
key->canonicalID(canonicalID);
|
|
delete key;
|
|
|
|
ICUServiceFactory* f = createSimpleFactory(objToAdopt, canonicalID, visible, status);
|
|
if (f != NULL) {
|
|
return registerFactory(f, status);
|
|
}
|
|
}
|
|
delete objToAdopt;
|
|
return NULL;
|
|
}
|
|
|
|
ICUServiceFactory*
|
|
ICUService::createSimpleFactory(UObject* objToAdopt, const UnicodeString& id, UBool visible, UErrorCode& status)
|
|
{
|
|
if (U_SUCCESS(status)) {
|
|
if ((objToAdopt != NULL) && (!id.isBogus())) {
|
|
return new SimpleFactory(objToAdopt, id, visible);
|
|
}
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
URegistryKey
|
|
ICUService::registerFactory(ICUServiceFactory* factoryToAdopt, UErrorCode& status)
|
|
{
|
|
if (U_SUCCESS(status) && factoryToAdopt != NULL) {
|
|
Mutex mutex(&lock);
|
|
|
|
if (factories == NULL) {
|
|
factories = new UVector(deleteUObject, NULL, status);
|
|
if (U_FAILURE(status)) {
|
|
delete factories;
|
|
return NULL;
|
|
}
|
|
}
|
|
factories->insertElementAt(factoryToAdopt, 0, status);
|
|
if (U_SUCCESS(status)) {
|
|
clearCaches();
|
|
} else {
|
|
delete factoryToAdopt;
|
|
factoryToAdopt = NULL;
|
|
}
|
|
}
|
|
|
|
if (factoryToAdopt != NULL) {
|
|
notifyChanged();
|
|
}
|
|
|
|
return (URegistryKey)factoryToAdopt;
|
|
}
|
|
|
|
UBool
|
|
ICUService::unregister(URegistryKey rkey, UErrorCode& status)
|
|
{
|
|
ICUServiceFactory *factory = (ICUServiceFactory*)rkey;
|
|
UBool result = FALSE;
|
|
if (factory != NULL && factories != NULL) {
|
|
Mutex mutex(&lock);
|
|
|
|
if (factories->removeElement(factory)) {
|
|
clearCaches();
|
|
result = TRUE;
|
|
} else {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
delete factory;
|
|
}
|
|
}
|
|
if (result) {
|
|
notifyChanged();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void
|
|
ICUService::reset()
|
|
{
|
|
{
|
|
Mutex mutex(&lock);
|
|
reInitializeFactories();
|
|
clearCaches();
|
|
}
|
|
notifyChanged();
|
|
}
|
|
|
|
void
|
|
ICUService::reInitializeFactories()
|
|
{
|
|
if (factories != NULL) {
|
|
factories->removeAllElements();
|
|
}
|
|
}
|
|
|
|
UBool
|
|
ICUService::isDefault() const
|
|
{
|
|
return countFactories() == 0;
|
|
}
|
|
|
|
ICUServiceKey*
|
|
ICUService::createKey(const UnicodeString* id, UErrorCode& status) const
|
|
{
|
|
return (U_FAILURE(status) || id == NULL) ? NULL : new ICUServiceKey(*id);
|
|
}
|
|
|
|
void
|
|
ICUService::clearCaches()
|
|
{
|
|
// callers synchronize before use
|
|
++timestamp;
|
|
delete dnCache;
|
|
dnCache = NULL;
|
|
delete idCache;
|
|
idCache = NULL;
|
|
delete serviceCache; serviceCache = NULL;
|
|
}
|
|
|
|
void
|
|
ICUService::clearServiceCache()
|
|
{
|
|
// callers synchronize before use
|
|
delete serviceCache; serviceCache = NULL;
|
|
}
|
|
|
|
UBool
|
|
ICUService::acceptsListener(const EventListener& l) const
|
|
{
|
|
return dynamic_cast<const ServiceListener*>(&l) != NULL;
|
|
}
|
|
|
|
void
|
|
ICUService::notifyListener(EventListener& l) const
|
|
{
|
|
((ServiceListener&)l).serviceChanged(*this);
|
|
}
|
|
|
|
UnicodeString&
|
|
ICUService::getName(UnicodeString& result) const
|
|
{
|
|
return result.append(name);
|
|
}
|
|
|
|
int32_t
|
|
ICUService::countFactories() const
|
|
{
|
|
return factories == NULL ? 0 : factories->size();
|
|
}
|
|
|
|
int32_t
|
|
ICUService::getTimestamp() const
|
|
{
|
|
return timestamp;
|
|
}
|
|
|
|
U_NAMESPACE_END
|
|
|
|
/* UCONFIG_NO_SERVICE */
|
|
#endif
|