code: public Observable<DiagnosticAnalysisInner> executeSiteAnalysisAsync(String resourceGroupName, String siteName, String diagnosticCategory, String analysisName) {
          return executeSiteAnalysisWithServiceResponseAsync(resourceGroupName, siteName, diagnosticCategory, analysisName).map(new Func1<ServiceResponse<DiagnosticAnalysisInner>, DiagnosticAnalysisInner>() {
              @Override
              public DiagnosticAnalysisInner call(ServiceResponse<DiagnosticAnalysisInner> response) {
                  return response.body();
              }
          });
      }
docs: Execute Analysis.
  Execute Analysis.
  
  @param resourceGroupName Name of the resource group to which the resource belongs.
  @param siteName Site Name
  @param diagnosticCategory Category Name
  @param analysisName Analysis Resource Name
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the DiagnosticAnalysisInner object