Difference between revisions of "Time Format Alternate Half Year"

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(Created page with "At ESCB level SDMX data exchanges, there is an agreement to use 'H' as the frequency value for semiannual observations. This is specified via 'YYYY-H1' or 'YYYY-H2'. The Regi...")
 
 
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At ESCB level SDMX data exchanges, there is an agreement to use 'H' as the frequency value for semiannual observations. This is specified via 'YYYY-H1' or 'YYYY-H2'.
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[[Category:Fusion Registry Install]]
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[[Category:How_To]]
  
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The Registry supports this by setting a system property so the Registry is in 'alternate half year' mode.  Under this mode:
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At ESCB level SDMX data exchanges, there is an agreement to use 'H' as the frequency value for semi-annual observations. This is specified via 'YYYY-H1' or 'YYYY-H2'.
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* Frequency value 'H' means half-year (semiannual or semester)
 
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* The hourly frequency is not supported
 
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* 'YYYY-S1' and 'YYYY-H1' are valid TIME_PERIOD formats for half-yearly observations, however conversion will output in ‘YYYY-H1’ format
 
  
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Alternate half year mode is controlled at system level on Registry start-up by setting the Java System variable "TF_ALTERNATE_HALF_YEAR" to "true".
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The Registry supports this with a system property. When this is enabled the Registry is in 'alternate half year' mode.  Under this mode:
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* Frequency value 'H' means half-year (semiannual or semester) as does frequency value 'S'. They are interchangeable as input.
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* 'YYYY-S1' and 'YYYY-H1' are valid TIME_PERIOD formats for half-yearly observations.
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* Output in SDMX-ML 2.1 will always be in the 'S' format (e.g. an input of 'YYYY-H1' will be converted to 'YYYY-S1'). This ensures that the output is correct to the SDMX specification.
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* Output in other formats will not be converted from 'H' to 'S' (e.g. SDMX-CSV)
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* The hourly frequency is not supported.
  
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'Alternate half year' mode is controlled at system level on Registry start-up by setting the Java System variable "TF_ALTERNATE_HALF_YEAR" to "true".
  
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== Setting System Property ==
  
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If using Apache Tomcat, JAVA_OPTS can be set in the setenv.bat or setenv.sh file:
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If using Apache Tomcat, it is recommended to set the value via JAVA_OPTS and using the ''setenv.bat'' or ''setenv.sh'' file:
  
 
  SET JAVA_OPTS=-DTF_ALTERNATE_HALF_YEAR=true
 
  SET JAVA_OPTS=-DTF_ALTERNATE_HALF_YEAR=true
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Different procedures may be required for other web application servers like JBoss.
 
Different procedures may be required for other web application servers like JBoss.
  
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The Fusion Registry system log will report the following message:
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== Is Alternate Half-Year Format set? ==
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On startup the Fusion Registry system log will report the following message:
  
 
  2021-12-31 23:59:59.123 INFO main io.sdmx.core.fmr.application.FusionRegistryApplicationInitialiser - Using 'Alternate Half-Year' Setting
 
  2021-12-31 23:59:59.123 INFO main io.sdmx.core.fmr.application.FusionRegistryApplicationInitialiser - Using 'Alternate Half-Year' Setting
  
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Active system properties can also be queried using the REST API here.
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Active system properties can also be queried using the REST API which is detailed [[System_Properties|here]].

Latest revision as of 23:35, 10 September 2023


At ESCB level SDMX data exchanges, there is an agreement to use 'H' as the frequency value for semi-annual observations. This is specified via 'YYYY-H1' or 'YYYY-H2'.

The Registry supports this with a system property. When this is enabled the Registry is in 'alternate half year' mode. Under this mode:

  • Frequency value 'H' means half-year (semiannual or semester) as does frequency value 'S'. They are interchangeable as input.
  • 'YYYY-S1' and 'YYYY-H1' are valid TIME_PERIOD formats for half-yearly observations.
  • Output in SDMX-ML 2.1 will always be in the 'S' format (e.g. an input of 'YYYY-H1' will be converted to 'YYYY-S1'). This ensures that the output is correct to the SDMX specification.
  • Output in other formats will not be converted from 'H' to 'S' (e.g. SDMX-CSV)
  • The hourly frequency is not supported.

'Alternate half year' mode is controlled at system level on Registry start-up by setting the Java System variable "TF_ALTERNATE_HALF_YEAR" to "true".

Setting System Property

If using Apache Tomcat, it is recommended to set the value via JAVA_OPTS and using the setenv.bat or setenv.sh file: 

SET JAVA_OPTS=-DTF_ALTERNATE_HALF_YEAR=true
(For Windows systems)

export JAVA_OPTS=-DTF_ALTERNATE_HALF_YEAR=true
(For Unix systems)

Different procedures may be required for other web application servers like JBoss.

Is Alternate Half-Year Format set?

On startup the Fusion Registry system log will report the following message: 

2021-12-31 23:59:59.123 INFO main io.sdmx.core.fmr.application.FusionRegistryApplicationInitialiser - Using 'Alternate Half-Year' Setting

Active system properties can also be queried using the REST API which is detailed here.

Retrieved from "https://wiki.sdmxcloud.org/index.php?title=Time_Format_Alternate_Half_Year&oldid=6027"