C++ LLSD::isUUID方法代码示例

//compares two LLSD's
bool llsds_are_equal(const LLSD& llsd_1, const LLSD& llsd_2)
{
	llassert(llsd_1.isDefined());
	llassert(llsd_2.isDefined());
	
	if (llsd_1.type() != llsd_2.type()) return false;

	if (!llsd_1.isMap())
	{
		if (llsd_1.isUUID()) return llsd_1.asUUID() == llsd_2.asUUID();

		//assumptions that string representaion is enough for other types
		return llsd_1.asString() == llsd_2.asString();
	}

	if (llsd_1.size() != llsd_2.size()) return false;

	LLSD::map_const_iterator llsd_1_it = llsd_1.beginMap();
	LLSD::map_const_iterator llsd_2_it = llsd_2.beginMap();
	for (S32 i = 0; i < llsd_1.size(); ++i)
	{
		if ((*llsd_1_it).first != (*llsd_2_it).first) return false;
		if (!llsds_are_equal((*llsd_1_it).second, (*llsd_2_it).second)) return false;
		++llsd_1_it;
		++llsd_2_it;
	}
	return true;
}

void LLScrollListIcon::setValue(const LLSD& value)
{
	if (value.isUUID())
	{
		// don't use default image specified by LLUUID::null, use no image in that case
		LLUUID image_id = value.asUUID();
		mIcon = image_id.notNull() ? LLUI::getUIImageByID(image_id) : LLUIImagePtr(NULL);
	}
	else
	{
		std::string value_string = value.asString();
		if (LLUUID::validate(value_string))
		{
			setValue(LLUUID(value_string));
		}
		else if (!value_string.empty())
		{
			mIcon = LLUI::getUIImage(value.asString());
		}
		else
		{
			mIcon = NULL;
		}
	}
}

void LLGroupIconCtrl::setValue(const LLSD& value)
{
	if (value.isUUID())
	{
		LLGroupMgr* gm = LLGroupMgr::getInstance();
		if (mGroupId.notNull())
		{
			gm->removeObserver(this);
		}

		if (mGroupId != value.asUUID())
		{
			mGroupId = value.asUUID();
			mID = mGroupId; // set LLGroupMgrObserver::mID to make callbacks work

			// Check if cache already contains image_id for that group
			if (!updateFromCache())
			{
				LLIconCtrl::setValue(mDefaultIconName);
				gm->addObserver(this);
				gm->sendGroupPropertiesRequest(mGroupId);
			}
		}
	}
	else
	{
		LLIconCtrl::setValue(value);
	}
}

// virtual
void LLIconCtrl::setValue(const LLSD& value )
{
	if (value.isUUID())
	{
		setImage(value.asUUID());
	}
	else
	{
		setImage(value.asString());
	}
}

//virtual
void LLAvatarIconCtrl::setValue(const LLSD& value)
{
	if (value.isUUID())
	{
		LLAvatarPropertiesProcessor* app =
			LLAvatarPropertiesProcessor::getInstance();
		if (mAvatarId.notNull())
		{
			app->removeObserver(mAvatarId, this);
		}

		if (mAvatarId != value.asUUID())
		{
			mAvatarId = value.asUUID();

			// *BUG: This will return stale icons if a user changes their
			// profile picture. However, otherwise we send too many upstream
			// AvatarPropertiesRequest messages.

			// to get fresh avatar icon use
			// LLAvatarIconIDCache::getInstance()->remove(avatar_id);

			// Check if cache already contains image_id for that avatar
			if (!updateFromCache())
			{
				// *TODO: Consider getting avatar icon/badge directly from 
				// People API, rather than sending AvatarPropertyRequest
				// messages.  People API already hits the user table.
				LLIconCtrl::setValue(mDefaultIconName);
				app->addObserver(mAvatarId, this);
				app->sendAvatarPropertiesRequest(mAvatarId);
			}
		}
	}
	else
	{
		LLIconCtrl::setValue(value);
	}

	LLAvatarNameCache::get(mAvatarId,
		boost::bind(&LLAvatarIconCtrl::onAvatarNameCache, 
			this, _1, _2));
}

//virtual
void LLAvatarIconCtrl::setValue(const LLSD& value)
{
	if (value.isUUID())
	{
		LLAvatarPropertiesProcessor* app =
			LLAvatarPropertiesProcessor::getInstance();
		if (mAvatarId.notNull())
		{
			app->removeObserver(mAvatarId, this);
		}

		if (mAvatarId != value.asUUID())
		{
			mAvatarId = value.asUUID();

			// *BUG: This will return stale icons if a user changes their
			// profile picture. However, otherwise we send too many upstream
			// AvatarPropertiesRequest messages.

			// to get fresh avatar icon use
			// LLAvatarIconIDCache::getInstance()->remove(avatar_id);

			// Check if cache already contains image_id for that avatar
			if (!updateFromCache())
			{
				LLIconCtrl::setValue(mDefaultIconName);
				app->addObserver(mAvatarId, this);
				app->sendAvatarPropertiesRequest(mAvatarId);
			}
		}
	}
	else
	{
		LLIconCtrl::setValue(value);
	}

	if  (gCacheName)
	{
		gCacheName->get(mAvatarId, FALSE, boost::bind(&LLAvatarIconCtrl::nameUpdatedCallback, this, _1, _2, _3, _4));
	}
}

//.........这里部分代码省略.........
    // A prototype map must match a data map. Every key in the prototype
    // must have a corresponding key in the data map; every value in the
    // prototype must match the corresponding key's value in the data.
    if (prototype.isMap())
    {
        if (! data.isMap())
        {
            return STRINGIZE(colon(pfx) << "Map" << op << sTypes.lookup(data.type()));
        }
        // If there are a number of keys missing from the data, it would be
        // frustrating to a coder to discover them one at a time, with a big
        // build each time. Enumerate all missing keys.
        std::ostringstream out;
        out << colon(pfx);
        const char* init = "Map missing keys: ";
        const char* sep = init;
        for (LLSD::map_const_iterator mi = prototype.beginMap(); mi != prototype.endMap(); ++mi)
        {
            if (! data.has(mi->first))
            {
                out << sep << mi->first;
                sep = ", ";
            }
        }
        // So... are we missing any keys?
        if (sep != init)
        {
            return out.str();
        }
        // Good, the data block contains all the keys required by the
        // prototype. Now match the prototype entries.
        for (LLSD::map_const_iterator mi2 = prototype.beginMap(); mi2 != prototype.endMap(); ++mi2)
        {
            std::string match(llsd_matches(mi2->second, data[mi2->first],
                                           STRINGIZE("['" << mi2->first << "']")));
            if (! match.empty())
            {
                return match;
            }
        }
        return "";
    }
    // A String prototype can match String, Boolean, Integer, Real, UUID,
    // Date and URI, because any of these can be converted to String.
    if (prototype.isString())
    {
        static LLSD::Type accept[] =
        {
            LLSD::TypeBoolean,
            LLSD::TypeInteger,
            LLSD::TypeReal,
            LLSD::TypeUUID,
            LLSD::TypeDate,
            LLSD::TypeURI
        };
        return match_types(prototype.type(),
                           TypeVector(boost::begin(accept), boost::end(accept)),
                           data.type(),
                           pfx);
    }
    // Boolean, Integer, Real match each other or String. TBD: ensure that
    // a String value is numeric.
    if (prototype.isBoolean() || prototype.isInteger() || prototype.isReal())
    {
        static LLSD::Type all[] =
        {
            LLSD::TypeBoolean,
            LLSD::TypeInteger,
            LLSD::TypeReal,
            LLSD::TypeString
        };
        // Funny business: shuffle the set of acceptable types to include all
        // but the prototype's type. Get the acceptable types in a set.
        std::set<LLSD::Type> rest(boost::begin(all), boost::end(all));
        // Remove the prototype's type because we pass that separately.
        rest.erase(prototype.type());
        return match_types(prototype.type(),
                           TypeVector(rest.begin(), rest.end()),
                           data.type(),
                           pfx);
    }
    // UUID, Date and URI match themselves or String.
    if (prototype.isUUID() || prototype.isDate() || prototype.isURI())
    {
        static LLSD::Type accept[] =
        {
            LLSD::TypeString
        };
        return match_types(prototype.type(),
                           TypeVector(boost::begin(accept), boost::end(accept)),
                           data.type(),
                           pfx);
    }
    // We don't yet know the conversion semantics associated with any new LLSD
    // data type that might be added, so until we've been extended to handle
    // them, assume it's strict: the new type matches only itself. (This is
    // true of Binary, which is why we don't handle that case separately.) Too
    // bad LLSD doesn't define isConvertible(Type to, Type from).
    return match_types(prototype.type(), TypeVector(), data.type(), pfx);
}