Skip to content

issue #4073 - add support for the "exists" discriminator #4074

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
lmsurpre wants to merge 1 commit into
base: main
Choose a base branch
from
Draft

issue #4073 - add support for the "exists" discriminator #4074

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
19 changes: 19 additions & 0 deletions fhir-profile/src/main/java/org/linuxforhealth/fhir/profile/ConstraintGenerator.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -413,6 +413,25 @@ private String discriminator(Node node) {
.append(")")
.append( ")");
}
} else if (DiscriminatorType.Value.EXISTS.equals(key)) {
// TODO support more than one?
String path = paths.get(0);

String id = "$this".equals(path) ?
elementDefinition.getId() :
elementDefinition.getId() + "." + path;

String snippet = path + ".exists()";
// The slices are differentiated by the fact that one must have a max of 0
ElementDefinition existsTarget = elementDefinitionMap.get(id);
if ("0".equals(existsTarget.getMax().getValue())) {
snippet += ".not()";
}

sb.append(identifier)
.append(".where(")
.append(snippet)
.append(")");
}
}
if (identifier.equals(sb.toString())) {
Expand Down