ManagerServlet

This servlet handles and manages data element registry. It takes the following parameters, either from a GET or POST request:

• the methods included should be either add , or remove indicating what kind of registry action to perform. The method(s) require a common parameter object .

Then, depending on the option selected above, other parameters must be specified.

• add is followed by a set of keyword=value . The user will need to obtain a list of the attributes describing a data element. These attributes were derived from the ISO/IEC 11179 standard. It is suggested to build a web tool which provides a html form to submit keywords and their values. Without the keyword and value set, this servlet brings you to the element registry prototype.
  • keyword is an attribute describing data element.
  • value is value to keyword given above.
• remove is followed by:
  • identifier identifier of data element.
  • regAuthId identifier of the registration authority of the data element.
  • version data element's version.

In response, this servlet dispatches to a jsp page, elementRegistryResult.jsp that displays the registry status.

Examples:

http://metadata.jpl.nasa.gov/ElementManager?
object=urn:corba:eda:JPL.EDM.MetadataRegistry&
add=&
name=test_name&
regAuthId=MDR&
regAuthName=Metadata+Registry&
definition=definiton
	  

http://metadata.jpl.nasa.gov/ElementManager?
object=urn:corba:eda:JPL.EDM.MetadataRegistry&
remove=&
identifier=1&
regAuthId=&
version=6
	  

SearchServlet

This servlet handles data element search. It takes the following parameters, either from a GET or POST request:

• search methods which should be either browse , textSearch , keywordSearch , query , or xmlQuery indicating what kind of search to perform. All these methods require a common parameter object .

Then, depending on the option selected above, other parameters must be specified.

• browse : no parameter is further needed.
• textSearch is followed by:
  • textString is a string of characters.
• keywordSearch is followed by a set of keyword=value . The user will need to obtain a list of the attributes describing a data element. These attributes were derived from the ISO/IEC 11179 standard.
  • keyword is an attribute describing data element.
  • value is value to keyword given above.
• query is followed by:
  • kwdString is a string of characters.
• xmlQuery is followed by:
  • kwdString is a string of characters.

In response, this servlet dispatches to a jsp page, elementSearchResult.jsp that displays the html result from the search except for method xmlQuery that displays the result in profile xml structure.

In addition, a parameter returnType , may be attached to specify the display format of the result. The output formats include text , html (default), or xml .

Examples:

http://metadata.jpl.nasa.gov/ElementSearch?
browse&
object=urn:corba:eda:JPL.EDM.MetadataRegistry

http://metadata.jpl.nasa.gov/ElementSearch?
textSearch&
object=urn:corba:eda:JPL.EDM.MetadataRegistry&
textString=Title

http://metadata.jpl.nasa.gov/ElementSearch?
object=urn:corba:eda:JPL.EDM.MetadataRegistry&
keywordSearch&
Name=Title

http://metadata.jpl.nasa.gov/ElementSearch?
object=urn:corba:eda:JPL.EDM.MetadataRegistry&
query&
kwdString=Name=Title

http://metadata.jpl.nasa.gov/ElementSearch?
object=urn:corba:eda:JPL.EDM.MetadataRegistry&
xmlQuery&
kwdString=Name=Title