TA_RetCode TA_YAHOO_CloseSource( TA_DataSourceHandle *handle )
{
TA_PROLOG
TA_TRACE_BEGIN( TA_YAHOO_CloseSource );
/* Free all ressource used by this handle. */
if( handle )
TA_YAHOO_DataSourceHandleFree( handle );
TA_TRACE_RETURN( TA_SUCCESS );
}
TA_RetCode TA_YAHOO_OpenSource( const TA_AddDataSourceParamPriv *param,
TA_DataSourceHandle **handle )
{
TA_PROLOG
TA_DataSourceHandle *tmpHandle;
TA_PrivateYahooHandle *privData;
TA_RetCode retCode;
TA_StringCache *stringCache;
TA_CountryId countryId;
TA_CountryId countryIdTemp;
TA_Timestamp now;
const char *locationPtr;
char locationBuffer[3];
int timeout_set; /* boolean */
int i, again;
unsigned int strLength, strServerLength;
const char *strTemp;
*handle = NULL;
TA_TRACE_BEGIN( TA_YAHOO_OpenSource );
stringCache = TA_GetGlobalStringCache();
/* Verify that the requested functionality is supported or not. */
if( param->flags & TA_REPLACE_ZERO_PRICE_BAR )
{
TA_TRACE_RETURN( TA_NOT_SUPPORTED );
}
/* Allocate and initialize the handle. This function will also allocate the
* private handle (opaque data).
*/
tmpHandle = TA_YAHOO_DataSourceHandleAlloc();
if( tmpHandle == NULL )
{
TA_TRACE_RETURN( TA_ALLOC_ERR );
}
privData = (TA_PrivateYahooHandle *)(tmpHandle->opaqueData);
/* Copy some parameters in the private handle. */
privData->param = param;
/* Indentify the country and replace with the default as needed.
* At the same time, identify optional "server=" modifier.
*/
countryId = TA_Country_ID_INVALID;
if( privData->param->location )
{
locationPtr = TA_StringToChar(privData->param->location);
/* Split into token (seperator is ';'). Check for a 2 character country
* string and the optional "server=" modifier.
*/
i = -1;
strTemp = &locationPtr[0];
strLength = 0;
strServerLength = strlen(TA_SERVER_STR);
again = 1;
while( (++i < 1024) && again )
{
if( strLength == 0 )
strTemp = &locationPtr[i];
if( locationPtr[i] == '\0' )
again = 0;
if( locationPtr[i] == ';' || !again )
{
if( strLength == 2 )
{
locationBuffer[0] = locationPtr[i-2];
locationBuffer[1] = locationPtr[i-1];
locationBuffer[2] = '\0';
countryIdTemp = TA_CountryAbbrevToId(locationBuffer);
if( countryIdTemp == TA_Country_ID_INVALID )
TA_TRACE_RETURN( TA_UNSUPPORTED_COUNTRY );
if( countryId != TA_Country_ID_INVALID )
TA_TRACE_RETURN( TA_LIMIT_OF_ONE_COUNTRY_ID_EXCEEDED );
countryId = countryIdTemp;
}
else if( strLength>strServerLength && (strncmp(strTemp,TA_SERVER_STR,strServerLength)==0) )
{
if( privData->userSpecifiedServer )
TA_TRACE_RETURN( TA_LIMIT_OF_ONE_SERVER_EXCEEDED );
privData->userSpecifiedServer = TA_StringAllocN( stringCache,
&strTemp[strServerLength],
strLength-strServerLength );
TA_ASSERT( privData->userSpecifiedServer != NULL );
}
else
TA_TRACE_RETURN( TA_LOCATION_PARAM_INVALID );
strLength = 0;
}
else
strLength++;
}
}
if( countryId == TA_Country_ID_INVALID )
{
/* Default is United States. */
countryId = TA_Country_ID_US;
}
if( privData->param->id == TA_YAHOO_ONE_SYMBOL )
{
privData->index = NULL;
privData->webSiteCountry = countryId;
privData->webSiteSymbol = TA_StringDup(stringCache,privData->param->info);
tmpHandle->nbCategory = 1;
}
else
{
/* Build the index using .dat files */
switch( countryId )
{
case TA_Country_ID_US: /* United States */
case TA_Country_ID_CA: /* Canada */
case TA_Country_ID_UK: /* United Kingdom */
case TA_Country_ID_DE: /* Germany */
case TA_Country_ID_DK: /* Denmark */
case TA_Country_ID_ES: /* Spain */
case TA_Country_ID_FR: /* France */
case TA_Country_ID_IT: /* Italy */
case TA_Country_ID_SE: /* Sweden */
case TA_Country_ID_NO: /* Norway */
/* These country are currently supported. */
break;
default:
TA_YAHOO_DataSourceHandleFree( tmpHandle );
TA_TRACE_RETURN( TA_UNSUPPORTED_COUNTRY );
}
/* Establish the timeout for local cache of the index.
* Let's make it 4 business days.
*/
timeout_set = 0;
TA_SetDefault( &now );
retCode = TA_SetDateNow( &now );
for( i=0; (i < 4) && (retCode == TA_SUCCESS); i++ )
retCode = TA_PrevWeekday( &now );
if( (i == 4) && (retCode == TA_SUCCESS) )
timeout_set = 1;
/* At this point, we got all the information we
* need in the handle.
* Now build the TA_YahooIdx.
*/
retCode = TA_YahooIdxAlloc( countryId,
&privData->index,
TA_USE_LOCAL_CACHE|TA_USE_REMOTE_CACHE,
NULL, timeout_set?&now:NULL, NULL );
if( retCode != TA_SUCCESS )
{
TA_YAHOO_DataSourceHandleFree( tmpHandle );
TA_TRACE_RETURN( retCode );
}
/* Set the total number of distinct category. */
tmpHandle->nbCategory = privData->index->nbCategory;
}
*handle = tmpHandle;
TA_TRACE_RETURN( TA_SUCCESS );
}
TA_RetCode TA_YAHOO_OpenSource( const TA_AddDataSourceParamPriv *param,
TA_DataSourceHandle **handle )
{
TA_PROLOG
TA_DataSourceHandle *tmpHandle;
TA_PrivateYahooHandle *privData;
TA_RetCode retCode;
TA_StringCache *stringCache;
TA_CountryId countryId;
TA_Timestamp now;
const char *locationPtr;
int timeout_set; /* boolean */
int i;
*handle = NULL;
TA_TRACE_BEGIN( TA_YAHOO_OpenSource );
stringCache = TA_GetGlobalStringCache();
/* Verify that the requested functionality is supported or not. */
if( param->flags & TA_REPLACE_ZERO_PRICE_BAR )
{
TA_TRACE_RETURN( TA_NOT_SUPPORTED );
}
/* Allocate and initialize the handle. This function will also allocate the
* private handle (opaque data).
*/
tmpHandle = TA_YAHOO_DataSourceHandleAlloc();
if( tmpHandle == NULL )
{
TA_TRACE_RETURN( TA_ALLOC_ERR );
}
privData = (TA_PrivateYahooHandle *)(tmpHandle->opaqueData);
/* Copy some parameters in the private handle. */
privData->param = param;
/* Validate if this is a supported country. */
if( !privData->param->location )
{
countryId = TA_Country_ID_US;
}
else
{
locationPtr = TA_StringToChar(privData->param->location);
countryId = TA_CountryAbbrevToId(locationPtr);
switch( countryId )
{
case TA_Country_ID_US: /* United States */
case TA_Country_ID_CA: /* Canada */
case TA_Country_ID_UK: /* United Kingdom */
case TA_Country_ID_DE: /* Germany */
case TA_Country_ID_DK: /* Denmark */
case TA_Country_ID_ES: /* Spain */
case TA_Country_ID_FR: /* France */
case TA_Country_ID_IT: /* Italy */
case TA_Country_ID_SE: /* Sweden */
case TA_Country_ID_NO: /* Norway */
/* These country are currently supported. */
break;
default:
TA_YAHOO_DataSourceHandleFree( tmpHandle );
TA_TRACE_RETURN( TA_UNSUPPORTED_COUNTRY );
}
}
/* Establish the timeout for local cache of the index.
* Let's make it 3 business days.
*/
timeout_set = 0;
TA_SetDefault( &now );
retCode = TA_SetDateNow( &now );
for( i=0; (i < 3) && (retCode == TA_SUCCESS); i++ )
retCode = TA_PrevWeekday( &now );
if( (i == 3) && (retCode == TA_SUCCESS) )
timeout_set = 1;
/* At this point, we got all the information we
* need in the handle.
* Now build the TA_YahooIdx.
*/
retCode = TA_YahooIdxAlloc(
countryId,
&privData->index,
TA_USE_LOCAL_CACHE|TA_USE_REMOTE_CACHE,
NULL, timeout_set?&now:NULL, NULL );
if( retCode != TA_SUCCESS )
{
TA_YAHOO_DataSourceHandleFree( tmpHandle );
TA_TRACE_RETURN( retCode );
}
/* Set the total number of distinct category. */
tmpHandle->nbCategory = privData->index->nbCategory;
*handle = tmpHandle;
TA_TRACE_RETURN( TA_SUCCESS );
}
