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LexEVS provides a number of services which are retrievable through the LexBIGService interface and the LexEvsServiceLocator interface. We list here a small sample including the more commonly used interfaces.
LexBIGService
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HistoryService
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LexBIGService lbsv = LexBIGServiceImpl.defaultInstance();
try {
HistoryService historSvc = lbsv.getHistoryService(codingScheme);<
} catch (LBException e) {
e.printStackTrace();
}
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LexBIGServiceManager
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//LexBIG Service Manager can accept credentials validation to
//preserve service security.
LexBIGService lbsv = LexBIGServiceImpl.defaultInstance();
try {
LexBIGServiceManager svcManager = lbsv.getServiceManager(credentials);
} catch (LBException e) {
e.printStackTrace();
}
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LexEVSServiceMetaData
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// User safe service meta data query interface.
LexBIGService lbsv = LexBIGServiceImpl.defaultInstance();
try {
LexBIGServiceMetadata svcMetaData = lbsv.getServiceMetadata();
} catch (LBException e) {
e.printStackTrace();
}
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LexEvsServiceLocator
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SystemResourceService
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// The system resource service is commonly wrapped in LexBIGServiceManager calls
// and as such it prevents unauthorized users from removing coding schemes from the service.
SystemResourceService systemResourceService = LexEvsServiceLocator.getInstance().getSystemResourceService();
// must be marked as inactive or pending before delete.
systemResourceService.removeCodingSchemeResourceFromSystem(
codingSchemeVersionReference.getCodingSchemeURN(),
codingSchemeVersionReference.getCodingSchemeVersion());
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LexEvsIndexOperations
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Some index operations can be accomplished using the interface returned from the LexEvsServiceLocator.
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boolean isSingleIndex =
LexEvsServiceLocator.getInstance().getSystemResourceService().getSystemVariables().getIsSingleIndex();
if(! isSingleIndex) {
throw new RuntimeException("Lucene Clean Up can only be executed in Single Index Mode.");
}
try {
List<AbsoluteCodingSchemeVersionReference> expectedList =
new ArrayList<AbsoluteCodingSchemeVersionReference>();
for(RegistryEntry entry :
LexEvsServiceLocator.getInstance().getRegistry().getAllRegistryEntriesOfType(ResourceType.CODING_SCHEME)) {
AbsoluteCodingSchemeVersionReference ref = new AbsoluteCodingSchemeVersionReference();
ref.setCodingSchemeURN(entry.getResourceUri());
ref.setCodingSchemeVersion(entry.getResourceVersion());
expectedList.add(ref);
}
LexEvsServiceLocator.getInstance().getLexEvsIndexOperations().cleanUp(expectedList, reindexMissing);
} catch (Exception e) {
throw new RuntimeException(e);
}
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EntityIndexService
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Others operations require using the IndexServiceManager to retrieve a more specific index service
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We've shown how the LexBIGService interface can retrieve other services, but it also provides some user safe administrative functions. These functions provide users with information about the service and overlap general user API functions, since they give users information about how to use the service.
Getting Filter Extensions
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// LexEVS has no built-in filter extensions. This method call
// will only return filters users have created themselves.
LexBIGService lbsv = LexBIGServiceImpl.defaultInstance();
Enumeration<? extends ExtensionDescription> extDesc = lbsv.getFilterExtensions().enumerateExtensionDescription();
while(extDesc.hasMoreElements()){
System.out.println(extDesc.nextElement().getName());
}
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Getting Sort Algorithms
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LexBIGService lbsv = LexBIGServiceImpl.defaultInstance();
Enumeration<? extends SortDescription> sortDesc = lbsv.getSortAlgorithms(null).enumerateSortDescription();
while(sortDesc.hasMoreElements()){
System.out.println(sortDesc.nextElement().getName());
}
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Getting Match Algorithms
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LexBIGService lbsv = LexBIGServiceImpl.defaultInstance();
Enumeration<? extends ModuleDescription> modDesc = lbsv.getMatchAlgorithms().enumerateModuleDescription();
while(modDesc.hasMoreElements()){
System.out.println(modDesc.nextElement().getName());
}
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SpellingErrorTolerantSubStringSearch StemmedLuceneQuery literalContains startsWith nonLeadingWildcardLiteralSubString literal WeightedDoubleMetaphoneLuceneQuery literalSubString DoubleMetaphoneLuceneQuery RegExp |
Getting Generic Extensions
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LexBIGService lbsv = LexBIGServiceImpl.defaultInstance();
Enumeration<? extends ExtensionDescription> extDesc = lbsv.getGenericExtensions().enumerateExtensionDescription();
while(extDesc.hasMoreElements()){
System.out.println(extDesc.nextElement().getName());
}
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SupplementExtension LexBIGServiceConvenienceMethods ApproxNumOfConceptsPostProcessor MappingExtension SupportedAttributePostProcessor OntologyFormatAddingPostProcessor |
Getting Service Information on all Schemes
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LexBIGService lbsv = LexBIGServiceImpl.defaultInstance();
try {
CodingSchemeRenderingList schemes = lbsv.getSupportedCodingSchemes();
for (CodingSchemeRendering csr : schemes.getCodingSchemeRendering()) {
// Separator ...
System.out.println("=============================");
CodingSchemeSummary css = csr.getCodingSchemeSummary();
CodingScheme cs = lbsv.resolveCodingScheme(css.getCodingSchemeURI(), Constructors
.createCodingSchemeVersionOrTagFromVersion(css.getRepresentsVersion()));
System.out.println(ObjectToString.toString(cs, "", 80));}
} catch (LBException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
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CodingScheme
Name: MDR12_1_TO_CST95
Formal Name: MDR12_1_TO_CST95
URI: urn:oid:CL413321.MDR.CST
Approximate Number of Concepts: 0
Default Language: null
Represents Version: 200909
Local Names:
Array of 1 items:
MDR12_1_TO_CST95
Mappings:
MappingsSupportedAssociations:
Array of 1 items:
SupportedAssociation
Local ID: mapped_to
Content: mapped_to
AssociationEntity CodingScheme: null
AssociationEntity EntityCodeNamespace: null
AssociationEntity EntityCode: null
SupportedCodingSchemes: ...................................................
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Getting Single Coding Scheme Information
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public void run(){
String codingScheme = "amino-acid.owl";
CodingSchemeVersionOrTag versionOrTag = new CodingSchemeVersionOrTag();
versionOrTag.setVersion("1.2");
LexBIGService lbsv = LexBIGServiceImpl.defaultInstance();
try {
CodingScheme cs = lbsv.resolveCodingScheme(codingScheme, versionOrTag );
System.out.println(ObjectToString.toString(cs, "", 80));
} catch (LBException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
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Output same as preceding but for designated coding scheme only.
Getting a Coding Scheme's Copyright Content
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String codingScheme = "amino-acid.owl";
CodingSchemeVersionOrTag versionOrTag = new CodingSchemeVersionOrTag();
versionOrTag.setVersion("1.2");
LexBIGService lbsv = LexBIGServiceImpl.defaultInstance();
try {
String cpywrt = lbsv.resolveCodingSchemeCopyright(codingScheme, versionOrTag);
System.out.println(cpywrt);
} catch (LBException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
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Output is unformatted text
LexBIGService Manager Methods
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These methods are generally not end user safe or access information in the system that is administrator specific in context. In general it should not be exposed to the end user.
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