private void composeList(String path, List<Element> list) throws IOException {
// there will be at least one element
String en = getFormalName(list.get(0));
openArray(en);
for (Element item : list) {
open(null);
json.name("index");
json.value(item.getIndex());
if (item.isPrimitive() || isPrimitive(item.getType())) {
if (item.hasValue()) primitiveValue(item);
}
if (item.getProperty().isResource()) {
prop("@type", "fhir:" + item.getType());
}
Set<String> done = new HashSet<String>();
for (Element child : item.getChildren()) {
compose(path + "." + item.getName(), item, done, child);
}
if ("Coding".equals(item.getType())) decorateCoding(item);
if ("CodeableConcept".equals(item.getType())) decorateCodeableConcept(item);
if ("Reference".equals(item.getType())) decorateReference(item);
close();
}
closeArray();
}
private void compose(String path, Element element) throws IOException {
Property p =
element.hasElementProperty() ? element.getElementProperty() : element.getProperty();
String en = getFormalName(element);
if (element.fhirType().equals("xhtml")) {
json.name(en);
json.value(element.getValue());
} else if (element.hasChildren() || element.hasComments() || element.hasValue()) {
open(en);
if (element.getProperty().isResource()) {
prop("@type", "fhir:" + element.getType());
// element = element.getChildren().get(0);
}
if (element.isPrimitive() || isPrimitive(element.getType())) {
if (element.hasValue()) primitiveValue(element);
}
Set<String> done = new HashSet<String>();
for (Element child : element.getChildren()) {
compose(path + "." + element.getName(), element, done, child);
}
if ("Coding".equals(element.getType())) decorateCoding(element);
if ("CodeableConcept".equals(element.getType())) decorateCodeableConcept(element);
if ("Reference".equals(element.getType())) decorateReference(element);
close();
}
}
@Override
public void compose(Element e, OutputStream stream, OutputStyle style, String base)
throws Exception {
this.base = base;
OutputStreamWriter osw = new OutputStreamWriter(stream, "UTF-8");
if (style == OutputStyle.CANONICAL) json = new JsonCreatorCanonical(osw);
else json = new JsonCreatorGson(osw);
json.setIndent(style == OutputStyle.PRETTY ? " " : "");
json.beginObject();
prop("@type", "fhir:" + e.getType());
prop("@context", jsonLDBase + "fhir.jsonld");
prop("role", "fhir:treeRoot");
String id = e.getChildValue("id");
if (base != null && id != null) {
if (base.endsWith("#")) prop("@id", base + e.getType() + "-" + id + ">");
else prop("@id", Utilities.pathReverse(base, e.getType(), id));
}
Set<String> done = new HashSet<String>();
for (Element child : e.getChildren()) {
compose(e.getName(), e, done, child);
}
json.endObject();
json.finish();
osw.flush();
}
private void decorateReference(Element element) throws IOException {
String ref = element.getChildValue("reference");
if (ref != null && (ref.startsWith("http://") || ref.startsWith("https://"))) {
json.name("link");
json.value(ref);
} else if (base != null && ref != null && ref.contains("/")) {
json.name("link");
json.value(Utilities.pathReverse(base, ref));
}
}
protected void decorateCoding(Element coding) throws IOException {
String system = coding.getChildValue("system");
String code = coding.getChildValue("code");
if (system == null) return;
if ("http://snomed.info/sct".equals(system)) {
json.name("concept");
json.value("http://snomed.info/id/" + code);
} else if ("http://loinc.org".equals(system)) {
json.name("concept");
json.value("http://loinc.org/owl#" + code);
}
}
protected void closeArray() throws IOException {
json.endArray();
}
protected void openArray(String name) throws IOException {
if (name != null) json.name(name);
json.beginArray();
}
protected void close() throws IOException {
json.endObject();
}
protected void prop(String name, String value) throws IOException {
if (name != null) json.name(name);
json.value(value);
}
private void primitiveValue(Element item) throws IOException {
String type = item.getType();
if (Utilities.existsInList(type, "date", "dateTime", "instant")) {
String v = item.getValue();
if (v.length() > 10) {
int i = v.substring(10).indexOf("-");
if (i == -1) i = v.substring(10).indexOf("+");
v = i == -1 ? v : v.substring(0, 10 + i);
}
if (v.length() > 10) json.name("dateTime");
else if (v.length() == 10) json.name("date");
else if (v.length() == 7) json.name("gYearMonth");
else if (v.length() == 4) json.name("gYear");
json.value(item.getValue());
} else if (Utilities.existsInList(type, "boolean")) {
json.name("boolean");
json.value(item.getValue().equals("true") ? new Boolean(true) : new Boolean(false));
} else if (Utilities.existsInList(type, "integer", "unsignedInt", "positiveInt")) {
json.name("integer");
json.value(new Integer(item.getValue()));
} else if (Utilities.existsInList(type, "decimal")) {
json.name("decimal");
json.value(item.getValue());
} else if (Utilities.existsInList(type, "base64Binary")) {
json.name("binary");
json.value(item.getValue());
} else {
json.name("value");
json.value(item.getValue());
}
}